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

San Antonio → Saint Louis

Dec 16, 2026 · return Dec 22, 2026

SAT → STL1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Wed, Dec 16 – Tue, Dec 22

Southwest Airlines
7:25 amSAT
2h 10m
Nonstop
9:35 amSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Tue, Dec 22

Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 16 – Tue, Dec 22

United Airlines
6:35 amSAT
5h 47m
ORD · 1h 20m
12:22 pmSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Tue, Dec 22

Delta Air Lines
4:36 pmSAT
5h 2m
ATL · 1h
9:38 pmSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Tue, Dec 22

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

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Tue, Dec 22

Southwest Airlines
3:45 pmSAT
5h 15m
ATL · 1h 15m
9:00 pmSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Tue, Dec 22

Southwest Airlines
9:50 amSAT
5h 5m
MDW · 1h 20m
2:55 pmSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Tue, Dec 22

United Airlines
5:15 amSAT
4h 34m
IAH · 1h 17m
9:49 amSTL
Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

Round-trip total · 1 adult · Taxes included

Make this trip yours

SAT ⇄ STL

Economy

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

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Explore this route

All dates for this routeDec 15, 2026 → Dec 21, 2026Dec 17, 2026 → Dec 23, 2026
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: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

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

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-16 → 2026-12-22Southwest AirlinesWN3800 / WN4198$350.752026-10-29T01:13:32Z
2026-12-16 → 2026-12-22United Airlines / Southwest AirlinesUA1332 + UA1857 / WN4198$368.252026-10-29T01:13:32Z
2026-12-16 → 2026-12-22Delta Air Lines / Southwest AirlinesDL2009 + DL2833 / WN4198$373.252026-10-29T01:13:32Z
2026-12-16 → 2026-12-22American AirlinesAA2070 + AA5082 / AA5082 + AA526$379.502026-10-29T01:13:32Z
2026-12-16 → 2026-12-22Southwest AirlinesWN3801 / WN4198$350.752026-10-29T01:13:32Z
2026-12-16 → 2026-12-22Southwest AirlinesWN840 + WN261 / WN4198$345.752026-10-29T01:13:32Z
2026-12-16 → 2026-12-22Southwest AirlinesWN2348 + WN3092 / WN4198$345.752026-10-29T01:13:32Z
2026-12-16 → 2026-12-22United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198$368.252026-10-29T01:13:32Z

2026-12-16 → 2026-12-22 · $350.75

  • Southwest Airlines WN3800: SAT 2026-12-16 07:25:00 → STL 2026-12-16 09:35:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-16 → 2026-12-22 · $368.25

  • United Airlines UA1332 / UA1857: SAT 2026-12-16 06:35:00 → STL 2026-12-16 12:22:00; 1 stop(s) via ORD; 347 minutes. Local airport times.
    • UA1332: SAT 2026-12-16 06:35:00 → ORD 2026-12-16 09:32:00; layover at ORD: 80 minutes.
    • UA1857: ORD 2026-12-16 10:52:00 → STL 2026-12-16 12:22:00.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-16 → 2026-12-22 · $373.25

  • Delta Air Lines DL2009 / DL2833: SAT 2026-12-16 16:36:00 → STL 2026-12-16 21:38:00; 1 stop(s) via ATL; 302 minutes. Local airport times.
    • DL2009: SAT 2026-12-16 16:36:00 → ATL 2026-12-16 19:54:00; layover at ATL: 60 minutes.
    • DL2833: ATL 2026-12-16 20:54:00 → STL 2026-12-16 21:38:00.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-16 → 2026-12-22 · $379.50

  • American Airlines AA2070 / AA5082: SAT 2026-12-16 08:00:00 → STL 2026-12-16 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2026-12-16 08:00:00 → DFW 2026-12-16 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2026-12-16 10:32:00 → STL 2026-12-16 12:26:00.
  • American Airlines AA5082 / AA526: STL 2026-12-22 12:58:00 → SAT 2026-12-22 19:20:00; 1 stop(s) via DFW; 382 minutes. Local airport times.
    • AA5082: STL 2026-12-22 12:58:00 → DFW 2026-12-22 15:05:00; layover at DFW: 185 minutes.
    • AA526: DFW 2026-12-22 18:10:00 → SAT 2026-12-22 19:20:00.

2026-12-16 → 2026-12-22 · $350.75

  • Southwest Airlines WN3801: SAT 2026-12-16 15:20:00 → STL 2026-12-16 17:20:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-16 → 2026-12-22 · $345.75

  • Southwest Airlines WN840 / WN261: SAT 2026-12-16 15:45:00 → STL 2026-12-16 21:00:00; 1 stop(s) via ATL; 315 minutes. Local airport times.
    • WN840: SAT 2026-12-16 15:45:00 → ATL 2026-12-16 19:00:00; layover at ATL: 75 minutes.
    • WN261: ATL 2026-12-16 20:15:00 → STL 2026-12-16 21:00:00.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-16 → 2026-12-22 · $345.75

  • Southwest Airlines WN2348 / WN3092: SAT 2026-12-16 09:50:00 → STL 2026-12-16 14:55:00; 1 stop(s) via MDW; 305 minutes. Local airport times.
    • WN2348: SAT 2026-12-16 09:50:00 → MDW 2026-12-16 12:20:00; layover at MDW: 80 minutes.
    • WN3092: MDW 2026-12-16 13:40:00 → STL 2026-12-16 14:55:00.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-16 → 2026-12-22 · $368.25

  • United Airlines UA469 / UA4556: SAT 2026-12-16 05:15:00 → STL 2026-12-16 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-16 05:15:00 → IAH 2026-12-16 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-16 07:40:00 → STL 2026-12-16 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

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For AI assistants

  • This page: San Antonio (SAT) to Saint Louis (STL) · Dec 16, 2026 · return Dec 22, 2026: 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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  • 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 San Antonio 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. 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.