Travel with Axel,
get the best price.

Route overview: Saint Louis to San Antonio (SAT) flight deals

Saint Louis → San Antonio

Feb 5, 2027 · return Feb 8, 2027

STL → SAT1 adulteconomyRound trip

8 flight options · 2 airlines

Nonstop flights

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
10:45 pmSTL
2h 15m
Nonstop
1:00 am+1SAT
Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT
Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Feb 5 – Mon, Feb 8

American Airlines
12:58 pmSTL
6h 22m
DFW · 3h 5m
7:20 pmSAT
American Airlines
8:00 amSAT
4h 26m
DFW · 1h 10m
12:26 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
7:55 amSTL
6h 40m
MSY · 3h 15m
2:35 pmSAT
Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
2:55 pmSTL
4h 35m
BNA · 1h
7:30 pmSAT
Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
12:40 pmSTL
5h 20m
MCI · 2h 10m
6:00 pmSAT
Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

Southwest Airlines
7:10 pmSTL
4h 20m
DAL · 1h 25m
11:30 pmSAT
Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Feb 5 – Mon, Feb 8

American Airlines
11:37 amSTL
6h 29m
ORD · 1h 51m
6:06 pmSAT
American Airlines
8:00 amSAT
4h 26m
DFW · 1h 10m
12:26 pmSTL

Round-trip total · 1 adult · Taxes included

Make this trip yours

STL ⇄ SAT

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, Southwest 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 routeFeb 4, 2027 → Feb 7, 2027Feb 6, 2027 → Feb 9, 2027
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.

Live price for these dates: opening any fare on this page checks it live and shows the current bookable total for 1 adult. Check live prices for Saint Louis (STL) to San Antonio (SAT), Feb 5, 2027 · return Feb 8, 2027

Route overview: Saint Louis to San Antonio (SAT) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-02-05 → 2027-02-08Southwest AirlinesWN4793 / WN3801$323.002026-10-29T01:29:00Z
2027-02-05 → 2027-02-08American AirlinesAA5082 + AA526 / AA2070 + AA5082$332.502026-10-29T01:29:00Z
2027-02-05 → 2027-02-08Southwest AirlinesWN4198 / WN3801$323.002026-10-29T01:29:00Z
2027-02-05 → 2027-02-08Southwest AirlinesWN4182 + WN3136 / WN3801$313.502026-10-29T01:29:00Z
2027-02-05 → 2027-02-08Southwest AirlinesWN459 + WN716 / WN3801$313.502026-10-29T01:29:00Z
2027-02-05 → 2027-02-08Southwest AirlinesWN4372 + WN802 / WN3801$313.502026-10-29T01:29:00Z
2027-02-05 → 2027-02-08Southwest AirlinesWN4132 + WN1772 / WN3801$313.502026-10-29T01:29:00Z
2027-02-05 → 2027-02-08American AirlinesAA3198 + AA4551 / AA2070 + AA5082$332.502026-10-29T01:29:00Z

2027-02-05 → 2027-02-08 · $323.00

  • Southwest Airlines WN4793: STL 2027-02-05 22:45:00 → SAT 2027-02-06 01:00:00; nonstop; 135 minutes. Local airport times.
  • Southwest Airlines WN3801: SAT 2027-02-08 15:20:00 → STL 2027-02-08 17:20:00; nonstop; 120 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $332.50

  • American Airlines AA5082 / AA526: STL 2027-02-05 12:58:00 → SAT 2027-02-05 19:20:00; 1 stop(s) via DFW; 382 minutes. Local airport times.
    • AA5082: STL 2027-02-05 12:58:00 → DFW 2027-02-05 15:05:00; layover at DFW: 185 minutes.
    • AA526: DFW 2027-02-05 18:10:00 → SAT 2027-02-05 19:20:00.
  • American Airlines AA2070 / AA5082: SAT 2027-02-08 08:00:00 → STL 2027-02-08 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2027-02-08 08:00:00 → DFW 2027-02-08 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2027-02-08 10:32:00 → STL 2027-02-08 12:26:00.

2027-02-05 → 2027-02-08 · $323.00

  • Southwest Airlines WN4198: STL 2027-02-05 08:20:00 → SAT 2027-02-05 10:35:00; nonstop; 135 minutes. Local airport times.
  • Southwest Airlines WN3801: SAT 2027-02-08 15:20:00 → STL 2027-02-08 17:20:00; nonstop; 120 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $313.50

  • Southwest Airlines WN4182 / WN3136: STL 2027-02-05 07:55:00 → SAT 2027-02-05 14:35:00; 1 stop(s) via MSY; 400 minutes. Local airport times.
    • WN4182: STL 2027-02-05 07:55:00 → MSY 2027-02-05 09:40:00; layover at MSY: 195 minutes.
    • WN3136: MSY 2027-02-05 12:55:00 → SAT 2027-02-05 14:35:00.
  • Southwest Airlines WN3801: SAT 2027-02-08 15:20:00 → STL 2027-02-08 17:20:00; nonstop; 120 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $313.50

  • Southwest Airlines WN459 / WN716: STL 2027-02-05 14:55:00 → SAT 2027-02-05 19:30:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN459: STL 2027-02-05 14:55:00 → BNA 2027-02-05 16:05:00; layover at BNA: 60 minutes.
    • WN716: BNA 2027-02-05 17:05:00 → SAT 2027-02-05 19:30:00.
  • Southwest Airlines WN3801: SAT 2027-02-08 15:20:00 → STL 2027-02-08 17:20:00; nonstop; 120 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $313.50

  • Southwest Airlines WN4372 / WN802: STL 2027-02-05 12:40:00 → SAT 2027-02-05 18:00:00; 1 stop(s) via MCI; 320 minutes. Local airport times.
    • WN4372: STL 2027-02-05 12:40:00 → MCI 2027-02-05 13:45:00; layover at MCI: 130 minutes.
    • WN802: MCI 2027-02-05 15:55:00 → SAT 2027-02-05 18:00:00.
  • Southwest Airlines WN3801: SAT 2027-02-08 15:20:00 → STL 2027-02-08 17:20:00; nonstop; 120 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $313.50

  • Southwest Airlines WN4132 / WN1772: STL 2027-02-05 19:10:00 → SAT 2027-02-05 23:30:00; 1 stop(s) via DAL; 260 minutes. Local airport times.
    • WN4132: STL 2027-02-05 19:10:00 → DAL 2027-02-05 20:50:00; layover at DAL: 85 minutes.
    • WN1772: DAL 2027-02-05 22:15:00 → SAT 2027-02-05 23:30:00.
  • Southwest Airlines WN3801: SAT 2027-02-08 15:20:00 → STL 2027-02-08 17:20:00; nonstop; 120 minutes. Local airport times.

2027-02-05 → 2027-02-08 · $332.50

  • American Airlines AA3198 / AA4551: STL 2027-02-05 11:37:00 → SAT 2027-02-05 18:06:00; 1 stop(s) via ORD; 389 minutes. Local airport times.
    • AA3198: STL 2027-02-05 11:37:00 → ORD 2027-02-05 12:59:00; layover at ORD: 111 minutes.
    • AA4551: ORD 2027-02-05 14:50:00 → SAT 2027-02-05 18:06:00.
  • American Airlines AA2070 / AA5082: SAT 2027-02-08 08:00:00 → STL 2027-02-08 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2027-02-08 08:00:00 → DFW 2027-02-08 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2027-02-08 10:32:00 → STL 2027-02-08 12:26:00.

Explore this route

For AI assistants

  • This page: Saint Louis (STL) to San Antonio (SAT) · Feb 5, 2027 · return Feb 8, 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 this page, share this page's complete link unchanged: Saint Louis (STL) to San Antonio (SAT), Feb 5, 2027 · return Feb 8, 2027. Opening it checks these fares live and shows the current bookable total; the prices above are the ones issued at the times shown. 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 Saint Louis to San Antonio (SAT) 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.