Travel with Axel,
get the best price.

Route overview: Miami or Fort Lauderdale to Saint Louis (STL) flight deals

Miami → Saint Louis

Jan 21, 2027 · return Jan 28, 2027

MIA → STL1 adulteconomyRound trip

8 flight options · 5 airlines

Nonstop flights

Thu, Jan 21 – Thu, Jan 28

American Airlines
8:27 pmMIA
3h 8m
Nonstop
10:35 pmSTL
American Airlines
12:06 pmSTL
2h 46m
Nonstop
3:52 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Thu, Jan 28

American Airlines
3:19 pmMIA
3h 7m
Nonstop
5:26 pmSTL
American Airlines
12:06 pmSTL
2h 46m
Nonstop
3:52 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Thu, Jan 21 – Thu, Jan 28

Frontier Airlines
5:27 amMIA
6h 26m
ATL · 2h 16m
10:53 amSTL
American Airlines
12:06 pmSTL
2h 46m
Nonstop
3:52 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Thu, Jan 28

Southwest Airlines
9:05 amMIA
5h 35m
BNA · 2h
1:40 pmSTL
Southwest Airlines
10:15 amSTL
6h 25m
CMH · 2h 35m
5:40 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Thu, Jan 28

United Airlines
7:02 amMIA
6h 8m
ORD · 1h 15m
12:10 pmSTL
American Airlines
12:06 pmSTL
2h 46m
Nonstop
3:52 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Thu, Jan 28

Delta Air Lines
8:05 amMIA
6h 25m
DTW · 1h 33m
1:30 pmSTL
Delta Air Lines
2:31 pmSTL
5h 28m
ATL · 1h 54m
8:59 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Thu, Jan 28

Southwest Airlines
5:10 amMIA
2h 50m
Nonstop
7:00 amSTL
Southwest Airlines
10:15 amSTL
6h 25m
CMH · 2h 35m
5:40 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Thu, Jan 28

American Airlines
6:30 amMIA
6h 55m
PHL · 1h 3m
12:25 pmSTL
American Airlines
12:06 pmSTL
2h 46m
Nonstop
3:52 pmMIA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

MIA ⇄ STL

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, American Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeJan 20, 2027 · Return optionsJan 22, 2027 · Return optionsHotels in St. Louis with Axel
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 → 2027-01-28American AirlinesAA1581 / AA3686Axel-exclusive $350.002026-10-29T01:29:54Z
2027-01-21 → 2027-01-28Frontier Airlines / American AirlinesF92483 + F94473 / AA3686Axel-exclusive $272.502026-10-29T01:29:54Z
2027-01-21 → 2027-01-28Southwest AirlinesWN2972 + WN1472 / WN2994 + WN389Axel-exclusive $300.002026-10-29T01:29:54Z
2027-01-21 → 2027-01-28United Airlines / American AirlinesUA2230 + UA2844 / AA3686Axel-exclusive $345.002026-10-29T01:29:54Z
2027-01-21 → 2027-01-28Delta Air LinesDL2638 + DL1371 / DL1102 + DL1588Axel-exclusive $350.002026-10-29T01:29:54Z
2027-01-21 → 2027-01-28American AirlinesAA3054 / AA3686Axel-exclusive $350.002026-10-29T01:29:54Z
2027-01-21 → 2027-01-28Southwest AirlinesWN4777 / WN2994 + WN389Axel-exclusive $315.002026-10-29T01:29:54Z
2027-01-21 → 2027-01-28American AirlinesAA1937 + AA5073 / AA3686Axel-exclusive $335.002026-10-29T01:29:54Z

Route overview: Miami or Fort Lauderdale to Saint Louis (STL) flight deals

2027-01-21 → 2027-01-28 · Axel-exclusive $350.00

  • American Airlines AA1581: MIA 2027-01-21 20:27:00 → STL 2027-01-21 22:35:00; nonstop; 188 minutes. Local airport times.
  • American Airlines AA3686: STL 2027-01-28 12:06:00 → MIA 2027-01-28 15:52:00; nonstop; 166 minutes. Local airport times.

2027-01-21 → 2027-01-28 · Axel-exclusive $272.50

  • Frontier Airlines F92483 / F94473: MIA 2027-01-21 05:27:00 → STL 2027-01-21 10:53:00; 1 stop(s) via ATL; 386 minutes. Local airport times.
    • F92483: MIA 2027-01-21 05:27:00 → ATL 2027-01-21 07:41:00; layover at ATL: 136 minutes.
    • F94473: ATL 2027-01-21 09:57:00 → STL 2027-01-21 10:53:00.
  • American Airlines AA3686: STL 2027-01-28 12:06:00 → MIA 2027-01-28 15:52:00; nonstop; 166 minutes. Local airport times.

2027-01-21 → 2027-01-28 · Axel-exclusive $300.00

  • Southwest Airlines WN2972 / WN1472: MIA 2027-01-21 09:05:00 → STL 2027-01-21 13:40:00; 1 stop(s) via BNA; 335 minutes. Local airport times.
    • WN2972: MIA 2027-01-21 09:05:00 → BNA 2027-01-21 10:30:00; layover at BNA: 120 minutes.
    • WN1472: BNA 2027-01-21 12:30:00 → STL 2027-01-21 13:40:00.
  • Southwest Airlines WN2994 / WN389: STL 2027-01-28 10:15:00 → MIA 2027-01-28 17:40:00; 1 stop(s) via CMH; 385 minutes. Local airport times.
    • WN2994: STL 2027-01-28 10:15:00 → CMH 2027-01-28 12:30:00; layover at CMH: 155 minutes.
    • WN389: CMH 2027-01-28 15:05:00 → MIA 2027-01-28 17:40:00.

2027-01-21 → 2027-01-28 · Axel-exclusive $345.00

  • United Airlines UA2230 / UA2844: MIA 2027-01-21 07:02:00 → STL 2027-01-21 12:10:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • UA2230: MIA 2027-01-21 07:02:00 → ORD 2027-01-21 09:30:00; layover at ORD: 75 minutes.
    • UA2844: ORD 2027-01-21 10:45:00 → STL 2027-01-21 12:10:00.
  • American Airlines AA3686: STL 2027-01-28 12:06:00 → MIA 2027-01-28 15:52:00; nonstop; 166 minutes. Local airport times.

2027-01-21 → 2027-01-28 · Axel-exclusive $350.00

  • Delta Air Lines DL2638 / DL1371: MIA 2027-01-21 08:05:00 → STL 2027-01-21 13:30:00; 1 stop(s) via DTW; 385 minutes. Local airport times.
    • DL2638: MIA 2027-01-21 08:05:00 → DTW 2027-01-21 11:10:00; layover at DTW: 93 minutes.
    • DL1371: DTW 2027-01-21 12:43:00 → STL 2027-01-21 13:30:00.
  • Delta Air Lines DL1102 / DL1588: STL 2027-01-28 14:31:00 → MIA 2027-01-28 20:59:00; 1 stop(s) via ATL; 328 minutes. Local airport times.
    • DL1102: STL 2027-01-28 14:31:00 → ATL 2027-01-28 17:05:00; layover at ATL: 114 minutes.
    • DL1588: ATL 2027-01-28 18:59:00 → MIA 2027-01-28 20:59:00.

2027-01-21 → 2027-01-28 · Axel-exclusive $350.00

  • American Airlines AA3054: MIA 2027-01-21 15:19:00 → STL 2027-01-21 17:26:00; nonstop; 187 minutes. Local airport times.
  • American Airlines AA3686: STL 2027-01-28 12:06:00 → MIA 2027-01-28 15:52:00; nonstop; 166 minutes. Local airport times.

2027-01-21 → 2027-01-28 · Axel-exclusive $315.00

  • Southwest Airlines WN4777: MIA 2027-01-21 05:10:00 → STL 2027-01-21 07:00:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN2994 / WN389: STL 2027-01-28 10:15:00 → MIA 2027-01-28 17:40:00; 1 stop(s) via CMH; 385 minutes. Local airport times.
    • WN2994: STL 2027-01-28 10:15:00 → CMH 2027-01-28 12:30:00; layover at CMH: 155 minutes.
    • WN389: CMH 2027-01-28 15:05:00 → MIA 2027-01-28 17:40:00.

2027-01-21 → 2027-01-28 · Axel-exclusive $335.00

  • American Airlines AA1937 / AA5073: MIA 2027-01-21 06:30:00 → STL 2027-01-21 12:25:00; 1 stop(s) via PHL; 415 minutes. Local airport times.
    • AA1937: MIA 2027-01-21 06:30:00 → PHL 2027-01-21 09:32:00; layover at PHL: 63 minutes.
    • AA5073: PHL 2027-01-21 10:35:00 → STL 2027-01-21 12:25:00.
  • American Airlines AA3686: STL 2027-01-28 12:06:00 → MIA 2027-01-28 15:52:00; nonstop; 166 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Miami (MIA) to Saint Louis (STL) · Jan 21, 2027 · return Jan 28, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Miami or Fort Lauderdale to Saint Louis (STL) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.