Flights from Chicago to the Pacific Northwest in fall: flights from $143 one way, Nov 2026–Sep 2027

Early autumn is the Pacific Northwest's quiet best: September dry and warm, the mountains golden in October, the rains back by November. Fares fall after Labor Day.

Nonstop from Chicago: Seattle (Delta, Alaska, American · 4h 40m), Portland (4h 35m), Spokane (United, American) and Eugene (United). No nonstop seen to Bellingham on the dates searched recently. No recent searches for Vancouver and Redmond.

Axel's pick: Portland, nonstop and the lowest fare saved for these dates, from $433.

Where to fly from Chicago to the Pacific Northwest in fall: saved round trips within September, October and November to Seattle, Portland, Vancouver, Spokane, Eugene and Bellingham and more. Pick a destination to see every date, or search your own dates in one tap.

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

Saved round trips for 4–10 nights, entirely within Sep, Oct, Nov.

Cheapest right now: Portland from $433 · Seattle $1,620

Search my own dates and travelers

Flights for the months ahead

Lowest published fares for the months ahead: $276 round trip, Axel-exclusive, Alaska Airlines, nonstop, Jan 7–10, 2027; $143 one way, Axel-exclusive, Alaska Airlines, nonstop, Jan 5, 2027; 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.

Chicago (ORD) to Seattle (SEA): November 2026

Travel datesAirlineStopsTotal price
Nov 19, 2026 – Nov 22, 2026 · 3 nights · Compare return dates departing Nov 19, 2026Alaska AirlinesNonstopAxel-exclusive $340.75
Nov 19, 2026 – Nov 22, 2026 · 3 nights · Compare return dates departing Nov 19, 2026United AirlinesNonstopAxel-exclusive $352.50
Nov 20, 2026 – Nov 23, 2026 · 3 nights · Compare return dates departing Nov 20, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Nov 20, 2026 – Nov 23, 2026 · 3 nights · Compare return dates departing Nov 20, 2026American AirlinesNonstopAxel-exclusive $405.00
Nov 21, 2026 – Nov 28, 2026 · 7 nights · Compare return dates departing Nov 21, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Nov 21, 2026 – Nov 28, 2026 · 7 nights · Compare return dates departing Nov 21, 2026American AirlinesNonstopAxel-exclusive $405.00
Nov 24, 2026 · One way · Compare return dates departing Nov 24, 2026Alaska AirlinesNonstopAxel-exclusive $202.50
Nov 24, 2026 · One way · Compare return dates departing Nov 24, 2026United AirlinesNonstopAxel-exclusive $209.25
Nov 24, 2026 – Nov 29, 2026 · 5 nights · Compare return dates departing Nov 24, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Nov 24, 2026 – Nov 29, 2026 · 5 nights · Compare return dates departing Nov 24, 2026United AirlinesNonstopAxel-exclusive $405.00
Nov 26, 2026 – Nov 29, 2026 · 3 nights · Compare return dates departing Nov 26, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Nov 26, 2026 – Nov 29, 2026 · 3 nights · Compare return dates departing Nov 26, 2026United AirlinesNonstopAxel-exclusive $405.00
Nov 27, 2026 – Nov 30, 2026 · 3 nights · Compare return dates departing Nov 27, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Nov 27, 2026 – Nov 30, 2026 · 3 nights · Compare return dates departing Nov 27, 2026United AirlinesNonstopAxel-exclusive $405.00
Nov 28, 2026 – Dec 5, 2026 · 7 nights · Compare return dates departing Nov 28, 2026Alaska AirlinesNonstopAxel-exclusive $340.75
Nov 28, 2026 – Dec 5, 2026 · 7 nights · Compare return dates departing Nov 28, 2026American AirlinesNonstopAxel-exclusive $352.50

Chicago (ORD) to Seattle (SEA): December 2026

Travel datesAirlineStopsTotal price
Dec 1, 2026 · One way · Compare return dates departing Dec 1, 2026Alaska AirlinesNonstopAxel-exclusive $150.00
Dec 1, 2026 · One way · Compare return dates departing Dec 1, 2026United AirlinesNonstopAxel-exclusive $155.00
Dec 3, 2026 – Dec 6, 2026 · 3 nights · Compare return dates departing Dec 3, 2026Alaska AirlinesNonstopAxel-exclusive $290.00
Dec 3, 2026 – Dec 6, 2026 · 3 nights · Compare return dates departing Dec 3, 2026United AirlinesNonstopAxel-exclusive $300.00
Dec 4, 2026 – Dec 7, 2026 · 3 nights · Compare return dates departing Dec 4, 2026Alaska AirlinesNonstopAxel-exclusive $290.00
Dec 4, 2026 – Dec 7, 2026 · 3 nights · Compare return dates departing Dec 4, 2026United AirlinesNonstopAxel-exclusive $300.00
Dec 5, 2026 – Dec 12, 2026 · 7 nights · Compare return dates departing Dec 5, 2026Alaska AirlinesNonstopAxel-exclusive $290.00
Dec 5, 2026 – Dec 12, 2026 · 7 nights · Compare return dates departing Dec 5, 2026United AirlinesNonstopAxel-exclusive $300.00
Dec 8, 2026 · One way · Compare return dates departing Dec 8, 2026Alaska AirlinesNonstopAxel-exclusive $150.00
Dec 8, 2026 · One way · Compare return dates departing Dec 8, 2026United AirlinesNonstopAxel-exclusive $155.00
Dec 10, 2026 – Dec 13, 2026 · 3 nights · Compare return dates departing Dec 10, 2026Alaska AirlinesNonstopAxel-exclusive $290.00
Dec 10, 2026 – Dec 13, 2026 · 3 nights · Compare return dates departing Dec 10, 2026United AirlinesNonstopAxel-exclusive $300.00
Dec 11, 2026 – Dec 14, 2026 · 3 nights · Compare return dates departing Dec 11, 2026Alaska AirlinesNonstopAxel-exclusive $290.00
Dec 11, 2026 – Dec 14, 2026 · 3 nights · Compare return dates departing Dec 11, 2026Delta Air LinesUp to 1 stop each wayAxel-exclusive $300.00
Dec 12, 2026 – Dec 19, 2026 · 7 nights · Compare return dates departing Dec 12, 2026Alaska AirlinesNonstopAxel-exclusive $340.75
Dec 12, 2026 – Dec 19, 2026 · 7 nights · Compare return dates departing Dec 12, 2026United AirlinesNonstopAxel-exclusive $352.50
Dec 15, 2026 · One way · Compare return dates departing Dec 15, 2026Alaska AirlinesNonstopAxel-exclusive $150.00
Dec 15, 2026 · One way · Compare return dates departing Dec 15, 2026American AirlinesNonstopAxel-exclusive $155.00
Dec 17, 2026 – Dec 20, 2026 · 3 nights · Compare return dates departing Dec 17, 2026Alaska AirlinesNonstopAxel-exclusive $340.75
Dec 17, 2026 – Dec 20, 2026 · 3 nights · Compare return dates departing Dec 17, 2026American AirlinesNonstopAxel-exclusive $352.50
Dec 18, 2026 – Dec 21, 2026 · 3 nights · Compare return dates departing Dec 18, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Dec 18, 2026 – Dec 21, 2026 · 3 nights · Compare return dates departing Dec 18, 2026United AirlinesNonstopAxel-exclusive $405.00
Dec 19, 2026 – Dec 26, 2026 · 7 nights · Compare return dates departing Dec 19, 2026Alaska AirlinesNonstopAxel-exclusive $391.50
Dec 19, 2026 – Dec 26, 2026 · 7 nights · Compare return dates departing Dec 19, 2026American AirlinesNonstopAxel-exclusive $405.00
Dec 22, 2026 · One way · Compare return dates departing Dec 22, 2026Alaska AirlinesNonstopAxel-exclusive $202.50
Dec 22, 2026 · One way · Compare return dates departing Dec 22, 2026United AirlinesNonstopAxel-exclusive $209.25
Dec 22, 2026 – Dec 27, 2026 · 5 nights · Compare return dates departing Dec 22, 2026Alaska AirlinesNonstopAxel-exclusive $384.25
Dec 22, 2026 – Dec 27, 2026 · 5 nights · Compare return dates departing Dec 22, 2026United AirlinesNonstopAxel-exclusive $397.50
Dec 24, 2026 – Dec 27, 2026 · 3 nights · Compare return dates departing Dec 24, 2026Alaska AirlinesNonstopAxel-exclusive $384.25
Dec 24, 2026 – Dec 27, 2026 · 3 nights · Compare return dates departing Dec 24, 2026American AirlinesNonstopAxel-exclusive $397.50
Dec 25, 2026 – Dec 28, 2026 · 3 nights · Compare return dates departing Dec 25, 2026Alaska AirlinesNonstopAxel-exclusive $384.25
Dec 25, 2026 – Dec 28, 2026 · 3 nights · Compare return dates departing Dec 25, 2026United AirlinesNonstopAxel-exclusive $397.50
Dec 26, 2026 – Jan 2, 2027 · 7 nights · Compare return dates departing Dec 26, 2026Alaska AirlinesNonstopAxel-exclusive $374.10
Dec 26, 2026 – Jan 2, 2027 · 7 nights · Compare return dates departing Dec 26, 2026American AirlinesNonstopAxel-exclusive $387.00
Dec 29, 2026 · One way · Compare return dates departing Dec 29, 2026Alaska AirlinesNonstopAxel-exclusive $195.00
Dec 29, 2026 · One way · Compare return dates departing Dec 29, 2026United AirlinesNonstopAxel-exclusive $201.50
Dec 30, 2026 – Jan 2, 2027 · 3 nights · Compare return dates departing Dec 30, 2026Frontier Airlines / Alaska AirlinesUp to 1 stop each wayAxel-exclusive $295.35
Dec 30, 2026 – Jan 2, 2027 · 3 nights · Compare return dates departing Dec 30, 2026American AirlinesNonstopAxel-exclusive $379.50
Dec 31, 2026 – Jan 3, 2027 · 3 nights · Compare return dates departing Dec 31, 2026Alaska AirlinesNonstopAxel-exclusive $366.85
Dec 31, 2026 – Jan 3, 2027 · 3 nights · Compare return dates departing Dec 31, 2026American AirlinesNonstopAxel-exclusive $379.50

Chicago (ORD) to Seattle (SEA): January 2027

Travel datesAirlineStopsTotal price
Jan 1, 2027 – Jan 4, 2027 · 3 nights · Compare return dates departing Jan 1, 2027Alaska AirlinesNonstopAxel-exclusive $316.10
Jan 1, 2027 – Jan 4, 2027 · 3 nights · Compare return dates departing Jan 1, 2027United AirlinesNonstopAxel-exclusive $327.00
Jan 2, 2027 – Jan 9, 2027 · 7 nights · Compare return dates departing Jan 2, 2027Alaska AirlinesNonstopAxel-exclusive $316.10
Jan 2, 2027 – Jan 9, 2027 · 7 nights · Compare return dates departing Jan 2, 2027American AirlinesNonstopAxel-exclusive $327.00
Jan 5, 2027 · One way · Compare return dates departing Jan 5, 2027Alaska AirlinesNonstopAxel-exclusive $142.50
Jan 5, 2027 · One way · Compare return dates departing Jan 5, 2027United AirlinesNonstopAxel-exclusive $147.25
Jan 7, 2027 – Jan 10, 2027 · 3 nights · Compare return dates departing Jan 7, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 7, 2027 – Jan 10, 2027 · 3 nights · Compare return dates departing Jan 7, 2027American AirlinesNonstopAxel-exclusive $285.00
Jan 8, 2027 – Jan 11, 2027 · 3 nights · Compare return dates departing Jan 8, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 8, 2027 – Jan 11, 2027 · 3 nights · Compare return dates departing Jan 8, 2027American AirlinesNonstopAxel-exclusive $285.00
Jan 9, 2027 – Jan 16, 2027 · 7 nights · Compare return dates departing Jan 9, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 9, 2027 – Jan 16, 2027 · 7 nights · Compare return dates departing Jan 9, 2027American AirlinesNonstopAxel-exclusive $285.00
Jan 12, 2027 · One way · Compare return dates departing Jan 12, 2027Alaska AirlinesNonstopAxel-exclusive $142.50
Jan 12, 2027 · One way · Compare return dates departing Jan 12, 2027United AirlinesNonstopAxel-exclusive $147.25
Jan 14, 2027 – Jan 17, 2027 · 3 nights · Compare return dates departing Jan 14, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 14, 2027 – Jan 17, 2027 · 3 nights · Compare return dates departing Jan 14, 2027American AirlinesNonstopAxel-exclusive $285.00
Jan 15, 2027 – Jan 18, 2027 · 3 nights · Compare return dates departing Jan 15, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 15, 2027 – Jan 18, 2027 · 3 nights · Compare return dates departing Jan 15, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $285.00
Jan 16, 2027 – Jan 23, 2027 · 7 nights · Compare return dates departing Jan 16, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 16, 2027 – Jan 23, 2027 · 7 nights · Compare return dates departing Jan 16, 2027United AirlinesNonstopAxel-exclusive $285.00
Jan 19, 2027 · One way · Compare return dates departing Jan 19, 2027Alaska AirlinesNonstopAxel-exclusive $142.50
Jan 19, 2027 · One way · Compare return dates departing Jan 19, 2027United AirlinesNonstopAxel-exclusive $147.25
Jan 21, 2027 – Jan 24, 2027 · 3 nights · Compare return dates departing Jan 21, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 21, 2027 – Jan 24, 2027 · 3 nights · Compare return dates departing Jan 21, 2027American AirlinesNonstopAxel-exclusive $285.00
Jan 22, 2027 – Jan 25, 2027 · 3 nights · Compare return dates departing Jan 22, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 22, 2027 – Jan 25, 2027 · 3 nights · Compare return dates departing Jan 22, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $285.00
Jan 23, 2027 – Jan 30, 2027 · 7 nights · Compare return dates departing Jan 23, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 23, 2027 – Jan 30, 2027 · 7 nights · Compare return dates departing Jan 23, 2027United AirlinesNonstopAxel-exclusive $285.00
Jan 26, 2027 · One way · Compare return dates departing Jan 26, 2027Alaska AirlinesNonstopAxel-exclusive $142.50
Jan 26, 2027 · One way · Compare return dates departing Jan 26, 2027American AirlinesNonstopAxel-exclusive $147.25
Jan 28, 2027 – Jan 31, 2027 · 3 nights · Compare return dates departing Jan 28, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 28, 2027 – Jan 31, 2027 · 3 nights · Compare return dates departing Jan 28, 2027United AirlinesNonstopAxel-exclusive $285.00
Jan 29, 2027 – Feb 1, 2027 · 3 nights · Compare return dates departing Jan 29, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 29, 2027 – Feb 1, 2027 · 3 nights · Compare return dates departing Jan 29, 2027United AirlinesNonstopAxel-exclusive $285.00
Jan 30, 2027 – Feb 6, 2027 · 7 nights · Compare return dates departing Jan 30, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Jan 30, 2027 – Feb 6, 2027 · 7 nights · Compare return dates departing Jan 30, 2027United AirlinesNonstopAxel-exclusive $285.00

Chicago (ORD) to Seattle (SEA): February 2027

Travel datesAirlineStopsTotal price
Feb 2, 2027 · One way · Compare return dates departing Feb 2, 2027Alaska AirlinesNonstopAxel-exclusive $142.50
Feb 2, 2027 · One way · Compare return dates departing Feb 2, 2027American AirlinesNonstopAxel-exclusive $147.25
Feb 4, 2027 – Feb 7, 2027 · 3 nights · Compare return dates departing Feb 4, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Feb 4, 2027 – Feb 7, 2027 · 3 nights · Compare return dates departing Feb 4, 2027United AirlinesNonstopAxel-exclusive $285.00
Feb 5, 2027 – Feb 8, 2027 · 3 nights · Compare return dates departing Feb 5, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Feb 5, 2027 – Feb 8, 2027 · 3 nights · Compare return dates departing Feb 5, 2027United AirlinesNonstopAxel-exclusive $285.00
Feb 6, 2027 – Feb 13, 2027 · 7 nights · Compare return dates departing Feb 6, 2027Alaska AirlinesNonstopAxel-exclusive $288.55
Feb 6, 2027 – Feb 13, 2027 · 7 nights · Compare return dates departing Feb 6, 2027United AirlinesNonstopAxel-exclusive $298.50
Feb 12, 2027 – Feb 15, 2027 · 3 nights · Compare return dates departing Feb 12, 2027Alaska AirlinesNonstopAxel-exclusive $301.60
Feb 12, 2027 – Feb 15, 2027 · 3 nights · Compare return dates departing Feb 12, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $312.00
Feb 19, 2027 – Feb 22, 2027 · 3 nights · Compare return dates departing Feb 19, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Feb 19, 2027 – Feb 22, 2027 · 3 nights · Compare return dates departing Feb 19, 2027American AirlinesNonstopAxel-exclusive $285.00
Feb 20, 2027 – Feb 27, 2027 · 7 nights · Compare return dates departing Feb 20, 2027Alaska AirlinesNonstopAxel-exclusive $275.50
Feb 20, 2027 – Feb 27, 2027 · 7 nights · Compare return dates departing Feb 20, 2027United AirlinesNonstopAxel-exclusive $285.00

Chicago (ORD) to Seattle (SEA): March 2027

Travel datesAirlineStopsTotal price
Mar 19, 2027 – Mar 22, 2027 · 3 nights · Compare return dates departing Mar 19, 2027Alaska AirlinesNonstopAxel-exclusive $311.75
Mar 19, 2027 – Mar 22, 2027 · 3 nights · Compare return dates departing Mar 19, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $321.75
Mar 20, 2027 – Mar 27, 2027 · 7 nights · Compare return dates departing Mar 20, 2027Alaska AirlinesNonstopAxel-exclusive $333.50
Mar 20, 2027 – Mar 27, 2027 · 7 nights · Compare return dates departing Mar 20, 2027American AirlinesNonstopAxel-exclusive $345.00
Mar 25, 2027 – Mar 29, 2027 · 4 nights · Compare return dates departing Mar 25, 2027Alaska AirlinesNonstopAxel-exclusive $385.25
Mar 25, 2027 – Mar 29, 2027 · 4 nights · Compare return dates departing Mar 25, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $391.00

Chicago (ORD) to Seattle (SEA): April 2027

Travel datesAirlineStopsTotal price
Apr 16, 2027 – Apr 19, 2027 · 3 nights · Compare return dates departing Apr 16, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
Apr 16, 2027 – Apr 19, 2027 · 3 nights · Compare return dates departing Apr 16, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $385.00
Apr 17, 2027 – Apr 24, 2027 · 7 nights · Compare return dates departing Apr 17, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
Apr 17, 2027 – Apr 24, 2027 · 7 nights · Compare return dates departing Apr 17, 2027United AirlinesNonstopAxel-exclusive $390.00

Chicago (ORD) to Seattle (SEA): May 2027

Travel datesAirlineStopsTotal price
May 14, 2027 – May 17, 2027 · 3 nights · Compare return dates departing May 14, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
May 14, 2027 – May 17, 2027 · 3 nights · Compare return dates departing May 14, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $385.00
May 15, 2027 – May 22, 2027 · 7 nights · Compare return dates departing May 15, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
May 15, 2027 – May 22, 2027 · 7 nights · Compare return dates departing May 15, 2027United AirlinesNonstopAxel-exclusive $390.00
May 28, 2027 – May 31, 2027 · 3 nights · Compare return dates departing May 28, 2027Alaska AirlinesNonstopAxel-exclusive $437.00
May 28, 2027 – May 31, 2027 · 3 nights · Compare return dates departing May 28, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $442.75

Chicago (ORD) to Seattle (SEA): June 2027

Travel datesAirlineStopsTotal price
Jun 11, 2027 – Jun 14, 2027 · 3 nights · Compare return dates departing Jun 11, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
Jun 11, 2027 – Jun 14, 2027 · 3 nights · Compare return dates departing Jun 11, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $385.00
Jun 12, 2027 – Jun 19, 2027 · 7 nights · Compare return dates departing Jun 12, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
Jun 12, 2027 – Jun 19, 2027 · 7 nights · Compare return dates departing Jun 12, 2027United AirlinesNonstopAxel-exclusive $390.00

Chicago (ORD) to Seattle (SEA): July 2027

Travel datesAirlineStopsTotal price
Jul 2, 2027 – Jul 6, 2027 · 4 nights · Compare return dates departing Jul 2, 2027Alaska AirlinesNonstopAxel-exclusive $478.80
Jul 2, 2027 – Jul 6, 2027 · 4 nights · Compare return dates departing Jul 2, 2027United AirlinesNonstopAxel-exclusive $491.40
Jul 9, 2027 – Jul 12, 2027 · 3 nights · Compare return dates departing Jul 9, 2027Alaska AirlinesNonstopAxel-exclusive $399.00
Jul 9, 2027 – Jul 12, 2027 · 3 nights · Compare return dates departing Jul 9, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $404.25
Jul 10, 2027 – Jul 17, 2027 · 7 nights · Compare return dates departing Jul 10, 2027Alaska AirlinesNonstopAxel-exclusive $399.00
Jul 10, 2027 – Jul 17, 2027 · 7 nights · Compare return dates departing Jul 10, 2027American AirlinesNonstopAxel-exclusive $409.50

Chicago (ORD) to Seattle (SEA): August 2027

Travel datesAirlineStopsTotal price
Aug 6, 2027 – Aug 9, 2027 · 3 nights · Compare return dates departing Aug 6, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
Aug 6, 2027 – Aug 9, 2027 · 3 nights · Compare return dates departing Aug 6, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $385.00
Aug 7, 2027 – Aug 14, 2027 · 7 nights · Compare return dates departing Aug 7, 2027Alaska AirlinesNonstopAxel-exclusive $380.00
Aug 7, 2027 – Aug 14, 2027 · 7 nights · Compare return dates departing Aug 7, 2027United AirlinesNonstopAxel-exclusive $390.00

Chicago (ORD) to Seattle (SEA): September 2027

Travel datesAirlineStopsTotal price
Sep 3, 2027 – Sep 6, 2027 · 3 nights · Compare return dates departing Sep 3, 2027Alaska AirlinesNonstopAxel-exclusive $414.20
Sep 3, 2027 – Sep 6, 2027 · 3 nights · Compare return dates departing Sep 3, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $419.65
Sep 4, 2027 – Sep 11, 2027 · 7 nights · Compare return dates departing Sep 4, 2027Alaska AirlinesNonstopAxel-exclusive $387.60
Sep 4, 2027 – Sep 11, 2027 · 7 nights · Compare return dates departing Sep 4, 2027American AirlinesNonstopAxel-exclusive $397.80
Sep 24, 2027 – Sep 27, 2027 · 3 nights · Compare return dates departing Sep 24, 2027Alaska AirlinesNonstopAxel-exclusive $361.00
Sep 24, 2027 – Sep 27, 2027 · 3 nights · Compare return dates departing Sep 24, 2027Delta Air LinesUp to 1 stop each wayAxel-exclusive $365.75
Sep 25, 2027 – Oct 2, 2027 · 7 nights · Compare return dates departing Sep 25, 2027Alaska AirlinesNonstopAxel-exclusive $370.50
Sep 25, 2027 – Oct 2, 2027 · 7 nights · Compare return dates departing Sep 25, 2027American AirlinesNonstopAxel-exclusive $380.25

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle 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 Seattle

Route overview: Chicago to Seattle (SEA) flight deals

2026-11-19 → 2026-11-22 · Axel-exclusive $340.75

  • Alaska Airlines AS583: ORD 2026-11-19 09:00:00 → SEA 2026-11-19 12:00:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS328: SEA 2026-11-22 23:58:00 → ORD 2026-11-23 05:56:00; nonstop; 238 minutes. Local airport times.

2026-11-19 → 2026-11-22 · Axel-exclusive $352.50

  • United Airlines UA2211: ORD 2026-11-19 19:55:00 → SEA 2026-11-19 22:43:00; nonstop; 288 minutes. Local airport times.
  • United Airlines UA2614: SEA 2026-11-22 22:56:00 → ORD 2026-11-23 05:06:00; nonstop; 250 minutes. Local airport times.

2026-11-24 · one way · Axel-exclusive $202.50

  • Alaska Airlines AS587: ORD 2026-11-24 07:00:00 → SEA 2026-11-24 09:50:00; nonstop; 290 minutes. Local airport times.

2026-11-24 · one way · Axel-exclusive $209.25

  • United Airlines UA2263: ORD 2026-11-24 20:20:00 → SEA 2026-11-24 23:07:00; nonstop; 287 minutes. Local airport times.

2026-11-28 → 2026-12-05 · Axel-exclusive $340.75

  • Alaska Airlines AS429: ORD 2026-11-28 18:54:00 → SEA 2026-11-28 21:56:00; nonstop; 302 minutes. Local airport times.
  • Alaska Airlines AS538: SEA 2026-12-05 17:50:00 → ORD 2026-12-05 23:59:00; nonstop; 249 minutes. Local airport times.

2026-11-28 → 2026-12-05 · Axel-exclusive $352.50

  • American Airlines AA2392: ORD 2026-11-28 20:45:00 → SEA 2026-11-28 23:42:00; nonstop; 297 minutes. Local airport times.
  • American Airlines AA2976: SEA 2026-12-05 06:09:00 → ORD 2026-12-05 12:26:00; nonstop; 257 minutes. Local airport times.

2026-12-12 → 2026-12-19 · Axel-exclusive $340.75

  • Alaska Airlines AS587: ORD 2026-12-12 06:00:00 → SEA 2026-12-12 09:00:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS407: SEA 2026-12-19 08:07:00 → ORD 2026-12-19 14:21:00; nonstop; 254 minutes. Local airport times.

2026-12-12 → 2026-12-19 · Axel-exclusive $352.50

  • United Airlines UA1764: ORD 2026-12-12 13:35:00 → SEA 2026-12-12 16:19:00; nonstop; 284 minutes. Local airport times.
  • United Airlines UA747: SEA 2026-12-19 10:55:00 → ORD 2026-12-19 17:05:00; nonstop; 250 minutes. Local airport times.

2026-12-25 → 2026-12-28 · Axel-exclusive $384.25

  • Alaska Airlines AS579: ORD 2026-12-25 20:59:00 → SEA 2026-12-25 23:53:00; nonstop; 294 minutes. Local airport times.
  • Alaska Airlines AS538: SEA 2026-12-28 17:48:00 → ORD 2026-12-28 23:59:00; nonstop; 251 minutes. Local airport times.

2026-12-25 → 2026-12-28 · Axel-exclusive $397.50

  • United Airlines UA2798: ORD 2026-12-25 19:42:00 → SEA 2026-12-25 22:32:00; nonstop; 290 minutes. Local airport times.
  • United Airlines UA2159: SEA 2026-12-28 23:44:00 → ORD 2026-12-29 05:58:00; nonstop; 254 minutes. Local airport times.

2027-01-07 → 2027-01-10 · Axel-exclusive $275.50

  • Alaska Airlines AS407: ORD 2027-01-07 15:19:00 → SEA 2027-01-07 18:11:00; nonstop; 292 minutes. Local airport times.
  • Alaska Airlines AS407: SEA 2027-01-10 08:07:00 → ORD 2027-01-10 14:21:00; nonstop; 254 minutes. Local airport times.

2027-01-07 → 2027-01-10 · Axel-exclusive $285.00

  • American Airlines AA3113: ORD 2027-01-07 12:54:00 → SEA 2027-01-07 15:58:00; nonstop; 304 minutes. Local airport times.
  • American Airlines AA2112: SEA 2027-01-10 10:47:00 → ORD 2027-01-10 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-24 · Axel-exclusive $285.00

  • American Airlines AA3113: ORD 2027-01-21 12:54:00 → SEA 2027-01-21 15:58:00; nonstop; 304 minutes. Local airport times.
  • American Airlines AA2112: SEA 2027-01-24 10:47:00 → ORD 2027-01-24 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-24 · Axel-exclusive $285.00

  • United Airlines UA2211: ORD 2027-01-21 19:55:00 → SEA 2027-01-21 22:43:00; nonstop; 288 minutes. Local airport times.
  • United Airlines UA2618: SEA 2027-01-24 07:00:00 → ORD 2027-01-24 13:12:00; nonstop; 252 minutes. Local airport times.

2027-02-04 → 2027-02-07 · Axel-exclusive $275.50

  • Alaska Airlines AS407: ORD 2027-02-04 15:19:00 → SEA 2027-02-04 18:11:00; nonstop; 292 minutes. Local airport times.
  • Alaska Airlines AS407: SEA 2027-02-07 08:07:00 → ORD 2027-02-07 14:21:00; nonstop; 254 minutes. Local airport times.

2027-02-04 → 2027-02-07 · Axel-exclusive $294.50

  • Delta Air Lines DL1564: ORD 2027-02-04 12:58:00 → SEA 2027-02-04 15:31:00; nonstop; 273 minutes. Local airport times.
  • Delta Air Lines DL2055: SEA 2027-02-07 07:20:00 → ORD 2027-02-07 13:30:00; nonstop; 250 minutes. Local airport times.

2027-03-19 → 2027-03-22 · Axel-exclusive $311.75

  • Alaska Airlines AS579: ORD 2027-03-19 20:59:00 → SEA 2027-03-19 23:53:00; nonstop; 294 minutes. Local airport times.
  • Alaska Airlines AS538: SEA 2027-03-22 17:48:00 → ORD 2027-03-22 23:59:00; nonstop; 251 minutes. Local airport times.

2027-03-19 → 2027-03-22 · Axel-exclusive $322.50

  • United Airlines UA2798: ORD 2027-03-19 19:42:00 → SEA 2027-03-19 22:32:00; nonstop; 290 minutes. Local airport times.
  • United Airlines UA2618: SEA 2027-03-22 07:00:00 → ORD 2027-03-22 13:12:00; nonstop; 252 minutes. Local airport times.

2027-05-15 → 2027-05-22 · Axel-exclusive $380.00

  • Alaska Airlines AS587: ORD 2027-05-15 06:00:00 → SEA 2027-05-15 09:00:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS1427: SEA 2027-05-22 11:45:00 → ORD 2027-05-22 17:59:00; nonstop; 254 minutes. Local airport times.

2027-05-15 → 2027-05-22 · Axel-exclusive $390.00

  • United Airlines UA2099: ORD 2027-05-15 09:00:00 → SEA 2027-05-15 11:58:00; nonstop; 298 minutes. Local airport times.
  • United Airlines UA747: SEA 2027-05-22 10:55:00 → ORD 2027-05-22 17:05:00; nonstop; 250 minutes. Local airport times.

2027-07-10 → 2027-07-17 · Axel-exclusive $399.00

  • Alaska Airlines AS587: ORD 2027-07-10 06:00:00 → SEA 2027-07-10 09:00:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS1427: SEA 2027-07-17 11:45:00 → ORD 2027-07-17 17:59:00; nonstop; 254 minutes. Local airport times.

2027-07-10 → 2027-07-17 · Axel-exclusive $409.50

  • American Airlines AA2392: ORD 2027-07-10 20:45:00 → SEA 2027-07-10 23:42:00; nonstop; 297 minutes. Local airport times.
  • American Airlines AA2379: SEA 2027-07-17 23:59:00 → ORD 2027-07-18 05:55:00; nonstop; 236 minutes. Local airport times.

2027-09-25 → 2027-10-02 · Axel-exclusive $370.50

  • Alaska Airlines AS587: ORD 2027-09-25 06:00:00 → SEA 2027-09-25 09:00:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS1427: SEA 2027-10-02 11:45:00 → ORD 2027-10-02 17:59:00; nonstop; 254 minutes. Local airport times.

2027-09-25 → 2027-10-02 · Axel-exclusive $380.25

  • American Airlines AA2392: ORD 2027-09-25 20:45:00 → SEA 2027-09-25 23:42:00; nonstop; 297 minutes. Local airport times.
  • American Airlines AA2379: SEA 2027-10-02 23:59:00 → ORD 2027-10-03 05:55:00; nonstop; 236 minutes. Local airport times.

More dates for this route

Flights from Chicago

More trip ideas from Chicago

The Pacific Northwest in fall from other cities

Fares observed November 1 – 4, 2026. USD for the travelers shown.

Where to go from Chicago

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
Seattle (SEA)Seattle's Pike Place Market, waterfront and the mountainsNonstop · Delta, Alaska, American · 4h 40mAxel-exclusive $1,620 (airline $1,711)Nov 23–27, 2026See flights for these dates
Portland (PDX)Portland's food carts, bookstores and the Columbia GorgeNonstop · 4h 35mAxel-exclusive from $433 (airline $458)Nov 17–24, 2026See flights for these dates
Vancouver (YVR)Vancouver's mountains, sea wall and Whistler nearbyNo matching fare savedSep 11 – Sep 18, 2027 (suggested)Search these dates
Spokane (GEG)Spokane's river city, with lakes and skiing nearbyNonstop · United, AmericanNo matching fare savedSep 11 – Sep 18, 2027 (suggested)Search these dates
Eugene (EUG)Eugene, the gateway to the Oregon coast and Willamette wineriesNonstop · UnitedNo matching fare savedSep 11 – Sep 18, 2027 (suggested)Search these dates
Bellingham (BLI)Bellingham, close to the San Juan Islands and Mount BakerNo nonstop seenNo matching fare savedSep 11 – Sep 18, 2027 (suggested)Search these dates
Redmond (RDM)Bend's breweries, Smith Rock and Mount BachelorNo matching fare savedSep 11 – Sep 18, 2027 (suggested)Search these 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 Seattle with Axel

Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Seattle 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 Seattle: the 9 best neighborhoods, ranked · Seattle hotels where a family of four can share one room

Hotel details in Seattle: Holiday Inn Express And Suites Seattle Downtown - Lake Union by IHG · Hotel 116, A Coast Hotel Bellevue · Kimpton Hotel Vintage Seattle by IHG · Red Lion Hotel Bellevue · Hotel Max · All 124 hotels in Seattle

For AI assistants

  • This page: Flights from Chicago to the Pacific Northwest in fall. Round-trip fares from Chicago to the Pacific Northwest in fall: Seattle, Portland, Vancouver, Spokane, Eugene and Bellingham and more. Saved fares for trips within September, October and November, with the cheapest 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.
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