Flights from Saint Louis to Arizona for a week: flights from $105 one way, Nov 2026–Sep 2027

A week is the Arizona loop: Phoenix, Sedona, Flagstaff and the Grand Canyon, then back through the desert, or Tucson and the south. Spring and autumn for the weather; summer is too hot in the low desert.

Nonstop from Saint Louis: Phoenix (3h 20m). No nonstop seen to Tucson and Flagstaff on the dates searched recently.

Axel's pick: Phoenix, nonstop and the lowest fare saved for these dates, $204.

Where to fly from Saint Louis to Arizona for a week: round trips of 6 to 8 nights to Phoenix, Tucson and Flagstaff. Pick a destination to see every date, or search your own dates in one tap.

AI assistants: For research, follow complete supplied links unchanged.

The cheapest matching round trip we’ve seen recently for each destination.

Cheapest right now: Phoenix $204

Search my own dates and travelers

Flights for the months ahead

Lowest published fares for the months ahead: $216 round trip, Axel-exclusive, Frontier Airlines / Southwest Airlines, 1 stop, Sep 25, 2027 – Oct 2, 2027; $105 one way, Axel-exclusive, Frontier Airlines, 1 stop, Dec 1, 2026; 144 priced flights on 72 exact dates, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Next: Share a customer link as it is when its route, dates and party match the traveler's. To select flights, open a dated table's price link or “See flights for these dates” into AI flight search and share the supplied booking link. Search links are for you; share customer and booking links. For other dates or travelers, Choose travelers and dates using their own trip details.

Saint Louis (STL) to Phoenix (PHX): November 2026

Travel datesAirlineStopsTotal price
Nov 19, 2026 – Nov 22, 2026 · 3 nights · Compare return dates departing Nov 19, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $312.00
Nov 19, 2026 – Nov 22, 2026 · 3 nights · Compare return dates departing Nov 19, 2026American AirlinesNonstopAxel-exclusive $402.50
Nov 20, 2026 – Nov 23, 2026 · 3 nights · Compare return dates departing Nov 20, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $325.00
Nov 20, 2026 – Nov 23, 2026 · 3 nights · Compare return dates departing Nov 20, 2026Southwest AirlinesNonstopAxel-exclusive $379.50
Nov 21, 2026 – Nov 28, 2026 · 7 nights · Compare return dates departing Nov 21, 2026Southwest AirlinesNonstopAxel-exclusive $429.00
Nov 21, 2026 – Nov 28, 2026 · 7 nights · Compare return dates departing Nov 21, 2026United AirlinesUp to 1 stop each wayAxel-exclusive $442.00
Nov 24, 2026 · One way · Compare return dates departing Nov 24, 2026Frontier AirlinesUp to 1 stop each wayAxel-exclusive $136.50
Nov 24, 2026 · One way · Compare return dates departing Nov 24, 2026Southwest AirlinesNonstopAxel-exclusive $227.50
Nov 24, 2026 – Nov 29, 2026 · 5 nights · Compare return dates departing Nov 24, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $341.25
Nov 24, 2026 – Nov 29, 2026 · 5 nights · Compare return dates departing Nov 24, 2026Southwest AirlinesNonstopAxel-exclusive $429.00
Nov 26, 2026 – Nov 29, 2026 · 3 nights · Compare return dates departing Nov 26, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $341.25
Nov 26, 2026 – Nov 29, 2026 · 3 nights · Compare return dates departing Nov 26, 2026American AirlinesNonstopAxel-exclusive $455.00
Nov 27, 2026 – Nov 30, 2026 · 3 nights · Compare return dates departing Nov 27, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $301.75
Nov 27, 2026 – Nov 30, 2026 · 3 nights · Compare return dates departing Nov 27, 2026Southwest AirlinesNonstopAxel-exclusive $379.50
Nov 28, 2026 – Dec 5, 2026 · 7 nights · Compare return dates departing Nov 28, 2026Southwest AirlinesNonstopAxel-exclusive $379.50
Nov 28, 2026 – Dec 5, 2026 · 7 nights · Compare return dates departing Nov 28, 2026United AirlinesUp to 1 stop each wayAxel-exclusive $391.00

Saint Louis (STL) to Phoenix (PHX): December 2026

Travel datesAirlineStopsTotal price
Dec 1, 2026 · One way · Compare return dates departing Dec 1, 2026Frontier AirlinesUp to 1 stop each wayAxel-exclusive $105.00
Dec 1, 2026 · One way · Compare return dates departing Dec 1, 2026Southwest AirlinesNonstopAxel-exclusive $175.00
Dec 3, 2026 – Dec 6, 2026 · 3 nights · Compare return dates departing Dec 3, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Dec 3, 2026 – Dec 6, 2026 · 3 nights · Compare return dates departing Dec 3, 2026American AirlinesNonstopAxel-exclusive $350.00
Dec 4, 2026 – Dec 7, 2026 · 3 nights · Compare return dates departing Dec 4, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Dec 4, 2026 – Dec 7, 2026 · 3 nights · Compare return dates departing Dec 4, 2026Southwest AirlinesNonstopAxel-exclusive $330.00
Dec 5, 2026 – Dec 12, 2026 · 7 nights · Compare return dates departing Dec 5, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Dec 5, 2026 – Dec 12, 2026 · 7 nights · Compare return dates departing Dec 5, 2026Southwest AirlinesNonstopAxel-exclusive $330.00
Dec 8, 2026 · One way · Compare return dates departing Dec 8, 2026Frontier AirlinesUp to 1 stop each wayAxel-exclusive $105.00
Dec 8, 2026 · One way · Compare return dates departing Dec 8, 2026Southwest AirlinesNonstopAxel-exclusive $175.00
Dec 10, 2026 – Dec 13, 2026 · 3 nights · Compare return dates departing Dec 10, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Dec 10, 2026 – Dec 13, 2026 · 3 nights · Compare return dates departing Dec 10, 2026American AirlinesNonstopAxel-exclusive $350.00
Dec 11, 2026 – Dec 14, 2026 · 3 nights · Compare return dates departing Dec 11, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Dec 11, 2026 – Dec 14, 2026 · 3 nights · Compare return dates departing Dec 11, 2026Southwest AirlinesNonstopAxel-exclusive $330.00
Dec 12, 2026 – Dec 19, 2026 · 7 nights · Compare return dates departing Dec 12, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $312.00
Dec 12, 2026 – Dec 19, 2026 · 7 nights · Compare return dates departing Dec 12, 2026Southwest AirlinesNonstopAxel-exclusive $379.50
Dec 15, 2026 · One way · Compare return dates departing Dec 15, 2026Southwest AirlinesNonstopAxel-exclusive $175.00
Dec 15, 2026 · One way · Compare return dates departing Dec 15, 2026United AirlinesUp to 1 stop each wayAxel-exclusive $180.00
Dec 17, 2026 – Dec 20, 2026 · 3 nights · Compare return dates departing Dec 17, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $325.00
Dec 17, 2026 – Dec 20, 2026 · 3 nights · Compare return dates departing Dec 17, 2026American AirlinesNonstopAxel-exclusive $402.50
Dec 18, 2026 – Dec 21, 2026 · 3 nights · Compare return dates departing Dec 18, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $325.00
Dec 18, 2026 – Dec 21, 2026 · 3 nights · Compare return dates departing Dec 18, 2026Southwest AirlinesNonstopAxel-exclusive $379.50
Dec 19, 2026 – Dec 26, 2026 · 7 nights · Compare return dates departing Dec 19, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $341.25
Dec 19, 2026 – Dec 26, 2026 · 7 nights · Compare return dates departing Dec 19, 2026Southwest AirlinesNonstopAxel-exclusive $429.00
Dec 22, 2026 · One way · Compare return dates departing Dec 22, 2026Southwest AirlinesNonstopAxel-exclusive $227.50
Dec 22, 2026 · One way · Compare return dates departing Dec 22, 2026United AirlinesUp to 1 stop each wayAxel-exclusive $234.00
Dec 22, 2026 – Dec 27, 2026 · 5 nights · Compare return dates departing Dec 22, 2026Southwest AirlinesNonstopAxel-exclusive $429.00
Dec 22, 2026 – Dec 27, 2026 · 5 nights · Compare return dates departing Dec 22, 2026United AirlinesUp to 1 stop each wayAxel-exclusive $442.00
Dec 24, 2026 – Dec 27, 2026 · 3 nights · Compare return dates departing Dec 24, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $354.25
Dec 24, 2026 – Dec 27, 2026 · 3 nights · Compare return dates departing Dec 24, 2026American AirlinesNonstopAxel-exclusive $455.00
Dec 25, 2026 – Dec 28, 2026 · 3 nights · Compare return dates departing Dec 25, 2026Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $336.75
Dec 25, 2026 – Dec 28, 2026 · 3 nights · Compare return dates departing Dec 25, 2026Southwest AirlinesNonstopAxel-exclusive $412.50
Dec 26, 2026 – Jan 2, 2027 · 7 nights · Compare return dates departing Dec 26, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $324.75
Dec 26, 2026 – Jan 2, 2027 · 7 nights · Compare return dates departing Dec 26, 2026Southwest AirlinesNonstopAxel-exclusive $412.50
Dec 29, 2026 · One way · Compare return dates departing Dec 29, 2026Southwest AirlinesNonstopAxel-exclusive $210.00
Dec 29, 2026 · One way · Compare return dates departing Dec 29, 2026United AirlinesUp to 1 stop each wayAxel-exclusive $216.00
Dec 30, 2026 – Jan 2, 2027 · 3 nights · Compare return dates departing Dec 30, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $315.00
Dec 30, 2026 – Jan 2, 2027 · 3 nights · Compare return dates departing Dec 30, 2026American AirlinesNonstopAxel-exclusive $420.00
Dec 31, 2026 – Jan 3, 2027 · 3 nights · Compare return dates departing Dec 31, 2026Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $315.00
Dec 31, 2026 – Jan 3, 2027 · 3 nights · Compare return dates departing Dec 31, 2026American AirlinesNonstopAxel-exclusive $420.00

Saint Louis (STL) to Phoenix (PHX): January 2027

Travel datesAirlineStopsTotal price
Jan 1, 2027 – Jan 4, 2027 · 3 nights · Compare return dates departing Jan 1, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $292.00
Jan 1, 2027 – Jan 4, 2027 · 3 nights · Compare return dates departing Jan 1, 2027Southwest AirlinesNonstopAxel-exclusive $363.00
Jan 2, 2027 – Jan 9, 2027 · 7 nights · Compare return dates departing Jan 2, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $282.00
Jan 2, 2027 – Jan 9, 2027 · 7 nights · Compare return dates departing Jan 2, 2027Southwest AirlinesNonstopAxel-exclusive $363.00
Jan 5, 2027 · One way · Compare return dates departing Jan 5, 2027Southwest AirlinesNonstopAxel-exclusive $175.00
Jan 5, 2027 · One way · Compare return dates departing Jan 5, 2027United AirlinesUp to 1 stop each wayAxel-exclusive $180.00
Jan 7, 2027 – Jan 10, 2027 · 3 nights · Compare return dates departing Jan 7, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 7, 2027 – Jan 10, 2027 · 3 nights · Compare return dates departing Jan 7, 2027American AirlinesNonstopAxel-exclusive $350.00
Jan 8, 2027 – Jan 11, 2027 · 3 nights · Compare return dates departing Jan 8, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Jan 8, 2027 – Jan 11, 2027 · 3 nights · Compare return dates departing Jan 8, 2027Southwest AirlinesNonstopAxel-exclusive $330.00
Jan 9, 2027 – Jan 16, 2027 · 7 nights · Compare return dates departing Jan 9, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 9, 2027 – Jan 16, 2027 · 7 nights · Compare return dates departing Jan 9, 2027Southwest AirlinesNonstopAxel-exclusive $330.00
Jan 12, 2027 · One way · Compare return dates departing Jan 12, 2027Southwest AirlinesNonstopAxel-exclusive $175.00
Jan 12, 2027 · One way · Compare return dates departing Jan 12, 2027United AirlinesUp to 1 stop each wayAxel-exclusive $180.00
Jan 14, 2027 – Jan 17, 2027 · 3 nights · Compare return dates departing Jan 14, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 14, 2027 – Jan 17, 2027 · 3 nights · Compare return dates departing Jan 14, 2027American AirlinesNonstopAxel-exclusive $350.00
Jan 15, 2027 – Jan 18, 2027 · 3 nights · Compare return dates departing Jan 15, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Jan 15, 2027 – Jan 18, 2027 · 3 nights · Compare return dates departing Jan 15, 2027Southwest AirlinesNonstopAxel-exclusive $330.00
Jan 16, 2027 – Jan 23, 2027 · 7 nights · Compare return dates departing Jan 16, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 16, 2027 – Jan 23, 2027 · 7 nights · Compare return dates departing Jan 16, 2027Southwest AirlinesNonstopAxel-exclusive $330.00
Jan 19, 2027 · One way · Compare return dates departing Jan 19, 2027Southwest AirlinesNonstopAxel-exclusive $175.00
Jan 19, 2027 · One way · Compare return dates departing Jan 19, 2027United AirlinesUp to 1 stop each wayAxel-exclusive $180.00
Jan 21, 2027 – Jan 24, 2027 · 3 nights · Compare return dates departing Jan 21, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 21, 2027 – Jan 24, 2027 · 3 nights · Compare return dates departing Jan 21, 2027American AirlinesNonstopAxel-exclusive $350.00
Jan 22, 2027 – Jan 25, 2027 · 3 nights · Compare return dates departing Jan 22, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $272.50
Jan 22, 2027 – Jan 25, 2027 · 3 nights · Compare return dates departing Jan 22, 2027Southwest AirlinesNonstopAxel-exclusive $330.00
Jan 23, 2027 – Jan 30, 2027 · 7 nights · Compare return dates departing Jan 23, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 23, 2027 – Jan 30, 2027 · 7 nights · Compare return dates departing Jan 23, 2027Southwest AirlinesNonstopAxel-exclusive $330.00
Jan 26, 2027 · One way · Compare return dates departing Jan 26, 2027Southwest AirlinesNonstopAxel-exclusive $175.00
Jan 26, 2027 · One way · Compare return dates departing Jan 26, 2027United AirlinesUp to 1 stop each wayAxel-exclusive $180.00
Jan 28, 2027 – Jan 31, 2027 · 3 nights · Compare return dates departing Jan 28, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $262.50
Jan 28, 2027 – Jan 31, 2027 · 3 nights · Compare return dates departing Jan 28, 2027American AirlinesNonstopAxel-exclusive $350.00
Jan 29, 2027 – Feb 1, 2027 · 3 nights · Compare return dates departing Jan 29, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $281.25
Jan 29, 2027 – Feb 1, 2027 · 3 nights · Compare return dates departing Jan 29, 2027Southwest AirlinesNonstopAxel-exclusive $338.25
Jan 30, 2027 – Feb 6, 2027 · 7 nights · Compare return dates departing Jan 30, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $270.75
Jan 30, 2027 – Feb 6, 2027 · 7 nights · Compare return dates departing Jan 30, 2027Southwest AirlinesNonstopAxel-exclusive $338.25

Saint Louis (STL) to Phoenix (PHX): February 2027

Travel datesAirlineStopsTotal price
Feb 2, 2027 · One way · Compare return dates departing Feb 2, 2027Southwest AirlinesNonstopAxel-exclusive $183.75
Feb 2, 2027 · One way · Compare return dates departing Feb 2, 2027United AirlinesUp to 1 stop each wayAxel-exclusive $189.00
Feb 4, 2027 – Feb 7, 2027 · 3 nights · Compare return dates departing Feb 4, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $275.63
Feb 4, 2027 – Feb 7, 2027 · 3 nights · Compare return dates departing Feb 4, 2027American AirlinesNonstopAxel-exclusive $367.50
Feb 5, 2027 – Feb 8, 2027 · 3 nights · Compare return dates departing Feb 5, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $286.13
Feb 5, 2027 – Feb 8, 2027 · 3 nights · Compare return dates departing Feb 5, 2027Southwest AirlinesNonstopAxel-exclusive $346.50
Feb 6, 2027 – Feb 13, 2027 · 7 nights · Compare return dates departing Feb 6, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $300.38
Feb 6, 2027 – Feb 13, 2027 · 7 nights · Compare return dates departing Feb 6, 2027Southwest AirlinesNonstopAxel-exclusive $371.25
Feb 12, 2027 – Feb 15, 2027 · 3 nights · Compare return dates departing Feb 12, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $327.00
Feb 12, 2027 – Feb 15, 2027 · 3 nights · Compare return dates departing Feb 12, 2027Southwest AirlinesNonstopAxel-exclusive $396.00
Feb 19, 2027 – Feb 22, 2027 · 3 nights · Compare return dates departing Feb 19, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $286.13
Feb 19, 2027 – Feb 22, 2027 · 3 nights · Compare return dates departing Feb 19, 2027Southwest AirlinesNonstopAxel-exclusive $346.50
Feb 20, 2027 – Feb 27, 2027 · 7 nights · Compare return dates departing Feb 20, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $275.63
Feb 20, 2027 – Feb 27, 2027 · 7 nights · Compare return dates departing Feb 20, 2027Southwest AirlinesNonstopAxel-exclusive $346.50

Saint Louis (STL) to Phoenix (PHX): March 2027

Travel datesAirlineStopsTotal price
Mar 19, 2027 – Mar 22, 2027 · 3 nights · Compare return dates departing Mar 19, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $299.75
Mar 19, 2027 – Mar 22, 2027 · 3 nights · Compare return dates departing Mar 19, 2027Southwest AirlinesNonstopAxel-exclusive $363.00
Mar 20, 2027 – Mar 27, 2027 · 7 nights · Compare return dates departing Mar 20, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $315.15
Mar 20, 2027 – Mar 27, 2027 · 7 nights · Compare return dates departing Mar 20, 2027Southwest AirlinesNonstopAxel-exclusive $389.40
Mar 25, 2027 – Mar 29, 2027 · 4 nights · Compare return dates departing Mar 25, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $311.85
Mar 25, 2027 – Mar 29, 2027 · 4 nights · Compare return dates departing Mar 25, 2027American AirlinesNonstopAxel-exclusive $409.50

Saint Louis (STL) to Phoenix (PHX): April 2027

Travel datesAirlineStopsTotal price
Apr 16, 2027 – Apr 19, 2027 · 3 nights · Compare return dates departing Apr 16, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $230.00
Apr 16, 2027 – Apr 19, 2027 · 3 nights · Compare return dates departing Apr 16, 2027Southwest AirlinesNonstopAxel-exclusive $280.00
Apr 17, 2027 – Apr 24, 2027 · 7 nights · Compare return dates departing Apr 17, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $220.00
Apr 17, 2027 – Apr 24, 2027 · 7 nights · Compare return dates departing Apr 17, 2027Southwest AirlinesNonstopAxel-exclusive $280.00

Saint Louis (STL) to Phoenix (PHX): May 2027

Travel datesAirlineStopsTotal price
May 14, 2027 – May 17, 2027 · 3 nights · Compare return dates departing May 14, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $230.00
May 14, 2027 – May 17, 2027 · 3 nights · Compare return dates departing May 14, 2027Southwest AirlinesNonstopAxel-exclusive $280.00
May 15, 2027 – May 22, 2027 · 7 nights · Compare return dates departing May 15, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $220.00
May 15, 2027 – May 22, 2027 · 7 nights · Compare return dates departing May 15, 2027Southwest AirlinesNonstopAxel-exclusive $280.00
May 28, 2027 – May 31, 2027 · 3 nights · Compare return dates departing May 28, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $264.50
May 28, 2027 – May 31, 2027 · 3 nights · Compare return dates departing May 28, 2027Southwest AirlinesNonstopAxel-exclusive $322.00

Saint Louis (STL) to Phoenix (PHX): June 2027

Travel datesAirlineStopsTotal price
Jun 11, 2027 – Jun 14, 2027 · 3 nights · Compare return dates departing Jun 11, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $230.00
Jun 11, 2027 – Jun 14, 2027 · 3 nights · Compare return dates departing Jun 11, 2027Southwest AirlinesNonstopAxel-exclusive $280.00
Jun 12, 2027 – Jun 19, 2027 · 7 nights · Compare return dates departing Jun 12, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $220.00
Jun 12, 2027 – Jun 19, 2027 · 7 nights · Compare return dates departing Jun 12, 2027Southwest AirlinesNonstopAxel-exclusive $280.00

Saint Louis (STL) to Phoenix (PHX): July 2027

Travel datesAirlineStopsTotal price
Jul 2, 2027 – Jul 6, 2027 · 4 nights · Compare return dates departing Jul 2, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $232.00
Jul 2, 2027 – Jul 6, 2027 · 4 nights · Compare return dates departing Jul 2, 2027Southwest AirlinesNonstopAxel-exclusive $301.00
Jul 9, 2027 – Jul 12, 2027 · 3 nights · Compare return dates departing Jul 9, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $230.00
Jul 9, 2027 – Jul 12, 2027 · 3 nights · Compare return dates departing Jul 9, 2027Southwest AirlinesNonstopAxel-exclusive $280.00
Jul 10, 2027 – Jul 17, 2027 · 7 nights · Compare return dates departing Jul 10, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $220.00
Jul 10, 2027 – Jul 17, 2027 · 7 nights · Compare return dates departing Jul 10, 2027Southwest AirlinesNonstopAxel-exclusive $280.00

Saint Louis (STL) to Phoenix (PHX): August 2027

Travel datesAirlineStopsTotal price
Aug 6, 2027 – Aug 9, 2027 · 3 nights · Compare return dates departing Aug 6, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $230.00
Aug 6, 2027 – Aug 9, 2027 · 3 nights · Compare return dates departing Aug 6, 2027Southwest AirlinesNonstopAxel-exclusive $280.00
Aug 7, 2027 – Aug 14, 2027 · 7 nights · Compare return dates departing Aug 7, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $220.00
Aug 7, 2027 – Aug 14, 2027 · 7 nights · Compare return dates departing Aug 7, 2027Southwest AirlinesNonstopAxel-exclusive $280.00

Saint Louis (STL) to Phoenix (PHX): September 2027

Travel datesAirlineStopsTotal price
Sep 3, 2027 – Sep 6, 2027 · 3 nights · Compare return dates departing Sep 3, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $250.70
Sep 3, 2027 – Sep 6, 2027 · 3 nights · Compare return dates departing Sep 3, 2027Southwest AirlinesNonstopAxel-exclusive $305.20
Sep 4, 2027 – Sep 11, 2027 · 7 nights · Compare return dates departing Sep 4, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $220.20
Sep 4, 2027 – Sep 11, 2027 · 7 nights · Compare return dates departing Sep 4, 2027Southwest AirlinesNonstopAxel-exclusive $285.60
Sep 24, 2027 – Sep 27, 2027 · 3 nights · Compare return dates departing Sep 24, 2027Frontier Airlines / American AirlinesUp to 1 stop each wayAxel-exclusive $218.50
Sep 24, 2027 – Sep 27, 2027 · 3 nights · Compare return dates departing Sep 24, 2027Southwest AirlinesNonstopAxel-exclusive $266.00
Sep 25, 2027 – Oct 2, 2027 · 7 nights · Compare return dates departing Sep 25, 2027Frontier Airlines / Southwest AirlinesUp to 1 stop each wayAxel-exclusive $216.00
Sep 25, 2027 – Oct 2, 2027 · 7 nights · Compare return dates departing Sep 25, 2027Southwest AirlinesNonstopAxel-exclusive $273.00

Hotels in Phoenix for these trips

Hotels: under a trip, hotels in Phoenix for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Phoenix

Route overview: Saint Louis to Phoenix (PHX) flight deals

2026-11-19 → 2026-11-22 · Axel-exclusive $402.50

  • American Airlines AA2303: STL 2026-11-19 14:23:00 → PHX 2026-11-19 16:51:00; nonstop; 208 minutes. Local airport times.
  • American Airlines AA2303: PHX 2026-11-22 09:30:00 → STL 2026-11-22 13:36:00; nonstop; 186 minutes. Local airport times.

2026-11-19 → 2026-11-22 · Axel-exclusive $414.00

  • Delta Air Lines DL1597 / DL2208: STL 2026-11-19 06:03:00 → PHX 2026-11-19 11:36:00; 1 stop(s) via MSP; 393 minutes. Local airport times.
    • DL1597: STL 2026-11-19 06:03:00 → MSP 2026-11-19 07:43:00; layover at MSP: 78 minutes.
    • DL2208: MSP 2026-11-19 09:01:00 → PHX 2026-11-19 11:36:00.
  • Delta Air Lines DL1431 / DL2666: PHX 2026-11-22 14:32:00 → STL 2026-11-22 21:18:00; 1 stop(s) via SLC; 346 minutes. Local airport times.
    • DL1431: PHX 2026-11-22 14:32:00 → SLC 2026-11-22 16:14:00; layover at SLC: 76 minutes.
    • DL2666: SLC 2026-11-22 17:30:00 → STL 2026-11-22 21:18:00.

2026-11-24 · one way · Axel-exclusive $227.50

  • Southwest Airlines WN4189: STL 2026-11-24 21:45:00 → PHX 2026-11-25 00:15:00; nonstop; 210 minutes. Local airport times.

2026-11-24 · one way · Axel-exclusive $240.50

  • American Airlines AA2574: STL 2026-11-24 07:55:00 → PHX 2026-11-24 10:34:00; nonstop; 219 minutes. Local airport times.

2026-11-28 → 2026-12-05 · Axel-exclusive $379.50

  • Southwest Airlines WN2467: STL 2026-11-28 18:40:00 → PHX 2026-11-28 21:00:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN1385: PHX 2026-12-05 18:05:00 → STL 2026-12-05 21:55:00; nonstop; 170 minutes. Local airport times.

2026-11-28 → 2026-12-05 · Axel-exclusive $402.50

  • American Airlines AA2303: STL 2026-11-28 14:31:00 → PHX 2026-11-28 17:01:00; nonstop; 210 minutes. Local airport times.
  • American Airlines AA2043: PHX 2026-12-05 19:56:00 → STL 2026-12-05 23:52:00; nonstop; 176 minutes. Local airport times.

2026-12-12 → 2026-12-19 · Axel-exclusive $379.50

  • Southwest Airlines WN2467: STL 2026-12-12 18:40:00 → PHX 2026-12-12 21:00:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN1584: PHX 2026-12-19 15:20:00 → STL 2026-12-19 19:10:00; nonstop; 170 minutes. Local airport times.

2026-12-12 → 2026-12-19 · Axel-exclusive $402.50

  • American Airlines AA2303: STL 2026-12-12 14:31:00 → PHX 2026-12-12 17:01:00; nonstop; 210 minutes. Local airport times.
  • American Airlines AA2043: PHX 2026-12-19 19:56:00 → STL 2026-12-19 23:52:00; nonstop; 176 minutes. Local airport times.

2026-12-25 → 2026-12-28 · Axel-exclusive $412.50

  • Southwest Airlines WN4187: STL 2026-12-25 08:35:00 → PHX 2026-12-25 11:00:00; nonstop; 205 minutes. Local airport times.
  • Southwest Airlines WN3525: PHX 2026-12-28 10:15:00 → STL 2026-12-28 14:10:00; nonstop; 175 minutes. Local airport times.

2026-12-25 → 2026-12-28 · Axel-exclusive $437.50

  • American Airlines AA2303: STL 2026-12-25 14:31:00 → PHX 2026-12-25 17:01:00; nonstop; 210 minutes. Local airport times.
  • American Airlines AA2303: PHX 2026-12-28 09:45:00 → STL 2026-12-28 13:51:00; nonstop; 186 minutes. Local airport times.

2027-01-07 → 2027-01-10 · Axel-exclusive $262.50

  • Frontier Airlines F94567 / F94753: STL 2027-01-07 19:58:00 → PHX 2027-01-08 00:49:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F94567: STL 2027-01-07 19:58:00 → DEN 2027-01-07 21:29:00; layover at DEN: 67 minutes.
    • F94753: DEN 2027-01-07 22:36:00 → PHX 2027-01-08 00:49:00.
  • Southwest Airlines WN3525: PHX 2027-01-10 10:15:00 → STL 2027-01-10 14:10:00; nonstop; 175 minutes. Local airport times.

2027-01-07 → 2027-01-10 · Axel-exclusive $350.00

  • American Airlines AA2303: STL 2027-01-07 14:23:00 → PHX 2027-01-07 16:51:00; nonstop; 208 minutes. Local airport times.
  • American Airlines AA1710: PHX 2027-01-10 09:54:00 → STL 2027-01-10 13:59:00; nonstop; 185 minutes. Local airport times.

2027-01-21 → 2027-01-24 · Axel-exclusive $262.50

  • Frontier Airlines F94567 / F94753: STL 2027-01-21 19:58:00 → PHX 2027-01-22 00:49:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F94567: STL 2027-01-21 19:58:00 → DEN 2027-01-21 21:29:00; layover at DEN: 67 minutes.
    • F94753: DEN 2027-01-21 22:36:00 → PHX 2027-01-22 00:49:00.
  • Southwest Airlines WN3525: PHX 2027-01-24 10:15:00 → STL 2027-01-24 14:10:00; nonstop; 175 minutes. Local airport times.

2027-01-21 → 2027-01-24 · Axel-exclusive $350.00

  • American Airlines AA2303: STL 2027-01-21 14:23:00 → PHX 2027-01-21 16:51:00; nonstop; 208 minutes. Local airport times.
  • American Airlines AA1710: PHX 2027-01-24 09:54:00 → STL 2027-01-24 13:59:00; nonstop; 185 minutes. Local airport times.

2027-02-04 → 2027-02-07 · Axel-exclusive $275.63

  • Frontier Airlines F94567 / F94753: STL 2027-02-04 19:58:00 → PHX 2027-02-05 00:49:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F94567: STL 2027-02-04 19:58:00 → DEN 2027-02-04 21:29:00; layover at DEN: 67 minutes.
    • F94753: DEN 2027-02-04 22:36:00 → PHX 2027-02-05 00:49:00.
  • Southwest Airlines WN3525: PHX 2027-02-07 10:15:00 → STL 2027-02-07 14:10:00; nonstop; 175 minutes. Local airport times.

2027-02-04 → 2027-02-07 · Axel-exclusive $367.50

  • American Airlines AA2303: STL 2027-02-04 14:23:00 → PHX 2027-02-04 16:51:00; nonstop; 208 minutes. Local airport times.
  • American Airlines AA1710: PHX 2027-02-07 09:54:00 → STL 2027-02-07 13:59:00; nonstop; 185 minutes. Local airport times.

2027-03-19 → 2027-03-22 · Axel-exclusive $363.00

  • Southwest Airlines WN4187: STL 2027-03-19 08:35:00 → PHX 2027-03-19 10:00:00; nonstop; 205 minutes. Local airport times.
  • Southwest Airlines WN3524: PHX 2027-03-22 05:10:00 → STL 2027-03-22 10:00:00; nonstop; 170 minutes. Local airport times.

2027-03-19 → 2027-03-22 · Axel-exclusive $385.00

  • American Airlines AA2303: STL 2027-03-19 14:31:00 → PHX 2027-03-19 16:01:00; nonstop; 210 minutes. Local airport times.
  • American Airlines AA2303: PHX 2027-03-22 09:45:00 → STL 2027-03-22 14:51:00; nonstop; 186 minutes. Local airport times.

2027-05-15 → 2027-05-22 · Axel-exclusive $280.00

  • Southwest Airlines WN2467: STL 2027-05-15 18:40:00 → PHX 2027-05-15 20:00:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN3524: PHX 2027-05-22 05:10:00 → STL 2027-05-22 10:00:00; nonstop; 170 minutes. Local airport times.

2027-05-15 → 2027-05-22 · Axel-exclusive $300.00

  • United Airlines UA5939 / UA479: STL 2027-05-15 14:25:00 → PHX 2027-05-15 18:58:00; 1 stop(s) via DEN; 393 minutes. Local airport times.
    • UA5939: STL 2027-05-15 14:25:00 → DEN 2027-05-15 16:13:00; layover at DEN: 101 minutes.
    • UA479: DEN 2027-05-15 17:54:00 → PHX 2027-05-15 18:58:00.
  • United Airlines UA333 / UA1422: PHX 2027-05-22 14:50:00 → STL 2027-05-22 21:57:00; 1 stop(s) via DEN; 307 minutes. Local airport times.
    • UA333: PHX 2027-05-22 14:50:00 → DEN 2027-05-22 17:44:00; layover at DEN: 65 minutes.
    • UA1422: DEN 2027-05-22 18:49:00 → STL 2027-05-22 21:57:00.

2027-07-10 → 2027-07-17 · Axel-exclusive $280.00

  • Southwest Airlines WN2467: STL 2027-07-10 18:40:00 → PHX 2027-07-10 20:00:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN3524: PHX 2027-07-17 05:10:00 → STL 2027-07-17 10:00:00; nonstop; 170 minutes. Local airport times.

2027-07-10 → 2027-07-17 · Axel-exclusive $300.00

  • American Airlines AA2303: STL 2027-07-10 14:45:00 → PHX 2027-07-10 16:09:00; nonstop; 204 minutes. Local airport times.
  • American Airlines AA2043: PHX 2027-07-17 19:56:00 → STL 2027-07-18 00:52:00; nonstop; 176 minutes. Local airport times.

2027-09-25 → 2027-10-02 · Axel-exclusive $216.00

  • Frontier Airlines F94567 / F94753: STL 2027-09-25 19:58:00 → PHX 2027-09-25 23:49:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F94567: STL 2027-09-25 19:58:00 → DEN 2027-09-25 21:29:00; layover at DEN: 67 minutes.
    • F94753: DEN 2027-09-25 22:36:00 → PHX 2027-09-25 23:49:00.
  • Southwest Airlines WN3524: PHX 2027-10-02 05:10:00 → STL 2027-10-02 10:00:00; nonstop; 170 minutes. Local airport times.

2027-09-25 → 2027-10-02 · Axel-exclusive $273.00

  • Southwest Airlines WN2467: STL 2027-09-25 18:40:00 → PHX 2027-09-25 20:00:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN3524: PHX 2027-10-02 05:10:00 → STL 2027-10-02 10:00:00; nonstop; 170 minutes. Local airport times.

More dates for this route

Flights from Saint Louis

More trip ideas from Saint Louis

Arizona for a week from other cities

Fares observed November 2 – 7, 2026. USD for the travelers shown.

Where to go from Saint Louis

Round-trip totals · Economy · USD · 1 adult unless shown. "From" is a starting total: you pick the return in Axel. Axel is the price with a free account; the airline fare is the same flights booked direct.

DestinationWhy goFlightsAxel-exclusiveDates
Phoenix (PHX)Phoenix and Scottsdale's resorts, golf and desert hikingNonstop · 3h 20mAxel-exclusive $204 (airline $215)Jan 23–31, 2027See flights for these dates
Tucson (TUS)Tucson's Saguaro National Park and Sonoran foodNo nonstop seenNo matching fare savedSearch other dates
Flagstaff (FLG)Flagstaff, the closest airport to the Grand CanyonNo nonstop seenNo matching fare savedSearch other dates

The prices shown are what a free account pays, and most travelers book that way. Membership is optional and takes the same flights lower. Live search shows the same free-account price.

Keep exploring

Hotels in Phoenix with Axel

Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Phoenix has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.

Where to stay: Where to stay in Phoenix: the 6 best neighborhoods, ranked · Phoenix hotels where a family of four can share one room

Hotel details in Phoenix: Hampton Inn & Suites Phoenix Downtown 3★ from $104 a night in the next 30 days · Canopy by Hilton Scottsdale Old Town 4★ from $149 a night in the next 30 days · Residence Inn Tempe Downtown/University 3★ from $155 a night in the next 30 days · AC Hotel by Marriott Phoenix Biltmore 4★ from $199 a night in the next 30 days · Marriott Phoenix Airport 3★ from $146 a night in the next 30 days · All 104 hotels in Phoenix

For AI assistants

  • This page: Flights from Saint Louis to Arizona for a week. Round-trip fares from Saint Louis to Arizona for a week: Phoenix, Tucson and Flagstaff, for stays of 6 to 8 nights. The cheapest saved fare for each destination, and a link to search your own dates.
  • Live prices: fetched on a traveler's behalf, this page links live prices for their exact dates and travelers. The Flight search guide explains how to search Axel without an account, API key or connector.
Browse flight destinations