San Diego (SAN) to Saint Louis (STL) · Feb 4, 2027 · one way

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.

Route overview: San Diego to Saint Louis (STL) flight deals

2027-02-04 · one way · Axel-exclusive $195.00

• Southwest Airlines WN4711: SAN 2027-02-04 11:55:00 → STL 2027-02-04 17:25:00; nonstop; 210 minutes. Local airport times.

2027-02-04 · one way · Axel-exclusive $185.00

• American Airlines AA2438 / AA2289: SAN 2027-02-04 15:13:00 → STL 2027-02-04 23:34:00; 1 stop(s) via DFW; 381 minutes. Local airport times.
  • AA2438: SAN 2027-02-04 15:13:00 → DFW 2027-02-04 20:30:00; layover at DFW: 75 minutes.
  • AA2289: DFW 2027-02-04 21:45:00 → STL 2027-02-04 23:34:00.

2027-02-04 · one way · Axel-exclusive $190.00

• United Airlines UA2476 / UA1639: SAN 2027-02-04 08:40:00 → STL 2027-02-04 16:57:00; 1 stop(s) via DEN; 377 minutes. Local airport times.
  • UA2476: SAN 2027-02-04 08:40:00 → DEN 2027-02-04 12:06:00; layover at DEN: 109 minutes.
  • UA1639: DEN 2027-02-04 13:55:00 → STL 2027-02-04 16:57:00.

2027-02-04 · one way · Axel-exclusive $195.00

• Southwest Airlines WN3823: SAN 2027-02-04 18:20:00 → STL 2027-02-04 23:45:00; nonstop; 205 minutes. Local airport times.

2027-02-04 · one way · Axel-exclusive $175.00

• Southwest Airlines WN2227 / WN1498: SAN 2027-02-04 13:25:00 → STL 2027-02-04 21:10:00; 1 stop(s) via DAL; 345 minutes. Local airport times.
  • WN2227: SAN 2027-02-04 13:25:00 → DAL 2027-02-04 18:20:00; layover at DAL: 60 minutes.
  • WN1498: DAL 2027-02-04 19:20:00 → STL 2027-02-04 21:10:00.

2027-02-04 · one way · Axel-exclusive $175.00

• Southwest Airlines WN3727 / WN3528: SAN 2027-02-04 15:40:00 → STL 2027-02-05 00:20:00; 1 stop(s) via PHX; 400 minutes. Local airport times.
  • WN3727: SAN 2027-02-04 15:40:00 → PHX 2027-02-04 18:00:00; layover at PHX: 145 minutes.
  • WN3528: PHX 2027-02-04 20:25:00 → STL 2027-02-05 00:20:00.

2027-02-04 · one way · Axel-exclusive $175.00

• Southwest Airlines WN2893 / WN3801: SAN 2027-02-04 09:15:00 → STL 2027-02-04 17:20:00; 1 stop(s) via SAT; 365 minutes. Local airport times.
  • WN2893: SAN 2027-02-04 09:15:00 → SAT 2027-02-04 14:00:00; layover at SAT: 80 minutes.
  • WN3801: SAT 2027-02-04 15:20:00 → STL 2027-02-04 17:20:00.

2027-02-04 · one way · Axel-exclusive $175.00

• Southwest Airlines WN3701 / WN1845: SAN 2027-02-04 17:20:00 → STL 2027-02-05 00:50:00; 1 stop(s) via DEN; 330 minutes. Local airport times.
  • WN3701: SAN 2027-02-04 17:20:00 → DEN 2027-02-04 20:40:00; layover at DEN: 70 minutes.
  • WN1845: DEN 2027-02-04 21:50:00 → STL 2027-02-05 00:50:00.

Explore this route

• All dates for this route
• Feb 3, 2027 · Return options
• Feb 5, 2027 · Return options
• Hotels in St. Louis with Axel

For AI assistants

• This page: San Diego (SAN) to Saint Louis (STL) · Feb 4, 2027 · one way: 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.
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• 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.

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