Saint Louis (STL) to San Diego (SAN) · Dec 24, 2026 · return Jan 3, 2027

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: Saint Louis to San Diego (SAN) flight deals

2026-12-24 → 2027-01-03 · Axel-exclusive $455.40

• Southwest Airlines WN4452: STL 2026-12-24 08:50:00 → SAN 2026-12-24 10:50:00; nonstop; 240 minutes. Local airport times.
• Southwest Airlines WN3823: SAN 2027-01-03 18:20:00 → STL 2027-01-03 23:45:00; nonstop; 205 minutes. Local airport times.

2026-12-24 → 2027-01-03 · Axel-exclusive $344.03

• Frontier Airlines F94567 / F92711: STL 2026-12-24 19:58:00 → SAN 2026-12-24 23:58:00; 1 stop(s) via DEN; 360 minutes. Local airport times.
  • F94567: STL 2026-12-24 19:58:00 → DEN 2026-12-24 21:29:00; layover at DEN: 60 minutes.
  • F92711: DEN 2026-12-24 22:29:00 → SAN 2026-12-24 23:58:00.
• Southwest Airlines WN3823: SAN 2027-01-03 18:20:00 → STL 2027-01-03 23:45:00; nonstop; 205 minutes. Local airport times.

2026-12-24 → 2027-01-03 · Axel-exclusive $442.75

• American Airlines AA2303 / AA2016: STL 2026-12-24 14:23:00 → SAN 2026-12-24 18:24:00; 1 stop(s) via PHX; 361 minutes. Local airport times.
  • AA2303: STL 2026-12-24 14:23:00 → PHX 2026-12-24 16:51:00; layover at PHX: 74 minutes.
  • AA2016: PHX 2026-12-24 18:05:00 → SAN 2026-12-24 18:24:00.
• American Airlines AA2438 / AA2289: SAN 2027-01-03 15:13:00 → STL 2027-01-03 23:34:00; 1 stop(s) via DFW; 381 minutes. Local airport times.
  • AA2438: SAN 2027-01-03 15:13:00 → DFW 2027-01-03 20:30:00; layover at DFW: 75 minutes.
  • AA2289: DFW 2027-01-03 21:45:00 → STL 2027-01-03 23:34:00.

2026-12-24 → 2027-01-03 · Axel-exclusive $428.40

• Southwest Airlines WN3286 / WN920: STL 2026-12-24 08:20:00 → SAN 2026-12-24 12:30:00; 1 stop(s) via OMA; 370 minutes. Local airport times.
  • WN3286: STL 2026-12-24 08:20:00 → OMA 2026-12-24 09:35:00; layover at OMA: 85 minutes.
  • WN920: OMA 2026-12-24 11:00:00 → SAN 2026-12-24 12:30:00.
• Southwest Airlines WN3823: SAN 2027-01-03 18:20:00 → STL 2027-01-03 23:45:00; nonstop; 205 minutes. Local airport times.

2026-12-24 → 2027-01-03 · Axel-exclusive $428.40

• Southwest Airlines WN4132 / WN266: STL 2026-12-24 19:10:00 → SAN 2026-12-24 23:15:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
  • WN4132: STL 2026-12-24 19:10:00 → DAL 2026-12-24 20:50:00; layover at DAL: 70 minutes.
  • WN266: DAL 2026-12-24 22:00:00 → SAN 2026-12-24 23:15:00.
• Southwest Airlines WN3823: SAN 2027-01-03 18:20:00 → STL 2027-01-03 23:45:00; nonstop; 205 minutes. Local airport times.

2026-12-24 → 2027-01-03 · Axel-exclusive $428.40

• Southwest Airlines WN4249 / WN352: STL 2026-12-24 08:00:00 → SAN 2026-12-24 12:30:00; 1 stop(s) via LAS; 390 minutes. Local airport times.
  • WN4249: STL 2026-12-24 08:00:00 → LAS 2026-12-24 09:30:00; layover at LAS: 100 minutes.
  • WN352: LAS 2026-12-24 11:10:00 → SAN 2026-12-24 12:30:00.
• Southwest Airlines WN3823: SAN 2027-01-03 18:20:00 → STL 2027-01-03 23:45:00; nonstop; 205 minutes. Local airport times.

2026-12-24 → 2027-01-03 · Axel-exclusive $428.40

• Southwest Airlines WN4164 / WN4644: STL 2026-12-24 08:00:00 → SAN 2026-12-24 11:50:00; 1 stop(s) via MCI; 350 minutes. Local airport times.
  • WN4164: STL 2026-12-24 08:00:00 → MCI 2026-12-24 09:10:00; layover at MCI: 75 minutes.
  • WN4644: MCI 2026-12-24 10:25:00 → SAN 2026-12-24 11:50:00.
• Southwest Airlines WN3823: SAN 2027-01-03 18:20:00 → STL 2027-01-03 23:45:00; nonstop; 205 minutes. Local airport times.

Explore this route

• All dates for this route
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For AI assistants

• This page: Saint Louis (STL) to San Diego (SAN) · Dec 24, 2026 · return Jan 3, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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