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San Diego → Saint Louis

Dec 21, 2026 · one way

SAN → STL1 adulteconomyOne way

8 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 · One way

Southwest Airlines
1:40 pmSAN
3h 30m
Nonstop
7:10 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
6:20 pmSAN
3h 25m
Nonstop
11:45 pmSTL

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

American Airlines
3:13 pmSAN
6h 21m
DFW · 1h 15m
11:34 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
8:40 amSAN
6h 17m
DEN · 1h 49m
4:57 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
3:40 pmSAN
6h 40m
PHX · 2h 25m
12:20 am+1STL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
9:15 amSAN
6h 5m
SAT · 1h 20m
5:20 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
5:20 pmSAN
5h 30m
DEN · 1h 10m
12:50 am+1STL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
1:25 pmSAN
5h 45m
DAL · 1h
9:10 pmSTL

One-way total · 1 adult · Taxes included

Make this trip yours

SAN ⇄ STL

Economy

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

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 · one waySouthwest AirlinesWN1316$273.002026-10-29T01:10:51Z
2026-12-21 · one wayAmerican AirlinesAA2438 + AA2289$259.002026-10-29T01:10:51Z
2026-12-21 · one wayUnited AirlinesUA2476 + UA1639$266.002026-10-29T01:10:51Z
2026-12-21 · one waySouthwest AirlinesWN3823$273.002026-10-29T01:10:51Z
2026-12-21 · one waySouthwest AirlinesWN3727 + WN3528$245.002026-10-29T01:10:51Z
2026-12-21 · one waySouthwest AirlinesWN2893 + WN3801$245.002026-10-29T01:10:51Z
2026-12-21 · one waySouthwest AirlinesWN3701 + WN1845$245.002026-10-29T01:10:51Z
2026-12-21 · one waySouthwest AirlinesWN2227 + WN1498$245.002026-10-29T01:10:51Z

2026-12-21 · one way · $273.00

  • Southwest Airlines WN1316: SAN 2026-12-21 13:40:00 → STL 2026-12-21 19:10:00; nonstop; 210 minutes. Local airport times.

2026-12-21 · one way · $259.00

  • American Airlines AA2438 / AA2289: SAN 2026-12-21 15:13:00 → STL 2026-12-21 23:34:00; 1 stop(s) via DFW; 381 minutes. Local airport times.
    • AA2438: SAN 2026-12-21 15:13:00 → DFW 2026-12-21 20:30:00; layover at DFW: 75 minutes.
    • AA2289: DFW 2026-12-21 21:45:00 → STL 2026-12-21 23:34:00.

2026-12-21 · one way · $266.00

  • United Airlines UA2476 / UA1639: SAN 2026-12-21 08:40:00 → STL 2026-12-21 16:57:00; 1 stop(s) via DEN; 377 minutes. Local airport times.
    • UA2476: SAN 2026-12-21 08:40:00 → DEN 2026-12-21 12:06:00; layover at DEN: 109 minutes.
    • UA1639: DEN 2026-12-21 13:55:00 → STL 2026-12-21 16:57:00.

2026-12-21 · one way · $273.00

  • Southwest Airlines WN3823: SAN 2026-12-21 18:20:00 → STL 2026-12-21 23:45:00; nonstop; 205 minutes. Local airport times.

2026-12-21 · one way · $245.00

  • Southwest Airlines WN3727 / WN3528: SAN 2026-12-21 15:40:00 → STL 2026-12-22 00:20:00; 1 stop(s) via PHX; 400 minutes. Local airport times.
    • WN3727: SAN 2026-12-21 15:40:00 → PHX 2026-12-21 18:00:00; layover at PHX: 145 minutes.
    • WN3528: PHX 2026-12-21 20:25:00 → STL 2026-12-22 00:20:00.

2026-12-21 · one way · $245.00

  • Southwest Airlines WN2893 / WN3801: SAN 2026-12-21 09:15:00 → STL 2026-12-21 17:20:00; 1 stop(s) via SAT; 365 minutes. Local airport times.
    • WN2893: SAN 2026-12-21 09:15:00 → SAT 2026-12-21 14:00:00; layover at SAT: 80 minutes.
    • WN3801: SAT 2026-12-21 15:20:00 → STL 2026-12-21 17:20:00.

2026-12-21 · one way · $245.00

  • Southwest Airlines WN3701 / WN1845: SAN 2026-12-21 17:20:00 → STL 2026-12-22 00:50:00; 1 stop(s) via DEN; 330 minutes. Local airport times.
    • WN3701: SAN 2026-12-21 17:20:00 → DEN 2026-12-21 20:40:00; layover at DEN: 70 minutes.
    • WN1845: DEN 2026-12-21 21:50:00 → STL 2026-12-22 00:50:00.

2026-12-21 · one way · $245.00

  • Southwest Airlines WN2227 / WN1498: SAN 2026-12-21 13:25:00 → STL 2026-12-21 21:10:00; 1 stop(s) via DAL; 345 minutes. Local airport times.
    • WN2227: SAN 2026-12-21 13:25:00 → DAL 2026-12-21 18:20:00; layover at DAL: 60 minutes.
    • WN1498: DAL 2026-12-21 19:20:00 → STL 2026-12-21 21:10:00.

More dates for this route