Philadelphia (PHL) to Saint Louis (STL) · Jan 1, 2027 · return Jan 4, 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: Philadelphia to Saint Louis (STL) flight deals

2027-01-01 → 2027-01-04 · Axel-exclusive $369.00

• Southwest Airlines WN1424: PHL 2027-01-01 14:45:00 → STL 2027-01-01 16:20:00; nonstop; 155 minutes. Local airport times.
• Southwest Airlines WN4923: STL 2027-01-04 18:20:00 → PHL 2027-01-04 21:30:00; nonstop; 130 minutes. Local airport times.

2027-01-01 → 2027-01-04 · Axel-exclusive $418.20

• American Airlines AA5105: PHL 2027-01-01 10:30:00 → STL 2027-01-01 12:18:00; nonstop; 168 minutes. Local airport times.
• American Airlines AA5308: STL 2027-01-04 06:12:00 → PHL 2027-01-04 09:32:00; nonstop; 140 minutes. Local airport times.

2027-01-01 → 2027-01-04 · Axel-exclusive $221.40

• Frontier Airlines F91147 / F94473: PHL 2027-01-01 12:49:00 → STL 2027-01-01 17:42:00; 1 stop(s) via ATL; 353 minutes. Local airport times.
  • F91147: PHL 2027-01-01 12:49:00 → ATL 2027-01-01 15:19:00; layover at ATL: 90 minutes.
  • F94473: ATL 2027-01-01 16:49:00 → STL 2027-01-01 17:42:00.
• Frontier Airlines F94474 / F92298: STL 2027-01-04 12:02:00 → PHL 2027-01-04 18:32:00; 1 stop(s) via ATL; 330 minutes. Local airport times.
  • F94474: STL 2027-01-04 12:02:00 → ATL 2027-01-04 14:42:00; layover at ATL: 102 minutes.
  • F92298: ATL 2027-01-04 16:24:00 → PHL 2027-01-04 18:32:00.

2027-01-01 → 2027-01-04 · Axel-exclusive $381.30

• United Airlines UA4575 / UA4527: PHL 2027-01-01 15:05:00 → STL 2027-01-01 19:35:00; 1 stop(s) via IAD; 330 minutes. Local airport times.
  • UA4575: PHL 2027-01-01 15:05:00 → IAD 2027-01-01 16:18:00; layover at IAD: 102 minutes.
  • UA4527: IAD 2027-01-01 18:00:00 → STL 2027-01-01 19:35:00.
• United Airlines UA3495 / UA4405: STL 2027-01-04 13:23:00 → PHL 2027-01-04 19:02:00; 1 stop(s) via IAD; 279 minutes. Local airport times.
  • UA3495: STL 2027-01-04 13:23:00 → IAD 2027-01-04 16:33:00; layover at IAD: 77 minutes.
  • UA4405: IAD 2027-01-04 17:50:00 → PHL 2027-01-04 19:02:00.

2027-01-01 → 2027-01-04 · Axel-exclusive $393.60

• Delta Air Lines DL2968 / DL1371: PHL 2027-01-01 09:43:00 → STL 2027-01-01 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
  • DL2968: PHL 2027-01-01 09:43:00 → DTW 2027-01-01 11:35:00; layover at DTW: 68 minutes.
  • DL1371: DTW 2027-01-01 12:43:00 → STL 2027-01-01 13:30:00.
• Delta Air Lines DL2868 / DL1391: STL 2027-01-04 10:14:00 → PHL 2027-01-04 16:35:00; 1 stop(s) via DTW; 321 minutes. Local airport times.
  • DL2868: STL 2027-01-04 10:14:00 → DTW 2027-01-04 12:46:00; layover at DTW: 133 minutes.
  • DL1391: DTW 2027-01-04 14:59:00 → PHL 2027-01-04 16:35:00.

2027-01-01 → 2027-01-04 · Axel-exclusive $369.00

• Southwest Airlines WN3375: PHL 2027-01-01 06:00:00 → STL 2027-01-01 07:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN4923: STL 2027-01-04 18:20:00 → PHL 2027-01-04 21:30:00; nonstop; 130 minutes. Local airport times.

2027-01-01 → 2027-01-04 · Axel-exclusive $418.20

• American Airlines AA5536: PHL 2027-01-01 20:55:00 → STL 2027-01-01 22:42:00; nonstop; 167 minutes. Local airport times.
• American Airlines AA5308: STL 2027-01-04 06:12:00 → PHL 2027-01-04 09:32:00; nonstop; 140 minutes. Local airport times.

2027-01-01 → 2027-01-04 · Axel-exclusive $356.70

• Southwest Airlines WN3372 / WN2737: PHL 2027-01-01 07:30:00 → STL 2027-01-01 12:40:00; 1 stop(s) via MDW; 370 minutes. Local airport times.
  • WN3372: PHL 2027-01-01 07:30:00 → MDW 2027-01-01 08:50:00; layover at MDW: 160 minutes.
  • WN2737: MDW 2027-01-01 11:30:00 → STL 2027-01-01 12:40:00.
• Southwest Airlines WN4923: STL 2027-01-04 18:20:00 → PHL 2027-01-04 21:30:00; nonstop; 130 minutes. Local airport times.

2027-01-01 → 2027-01-04 · Axel-exclusive $393.60

• American Airlines AA567 / AA2937: PHL 2027-01-01 15:06:00 → STL 2027-01-01 19:30:00; 1 stop(s) via CLT; 324 minutes. Local airport times.
  • AA567: PHL 2027-01-01 15:06:00 → CLT 2027-01-01 17:04:00; layover at CLT: 83 minutes.
  • AA2937: CLT 2027-01-01 18:27:00 → STL 2027-01-01 19:30:00.
• American Airlines AA5308: STL 2027-01-04 06:12:00 → PHL 2027-01-04 09:32:00; nonstop; 140 minutes. Local airport times.

2027-01-01 → 2027-01-04 · Axel-exclusive $393.60

• American Airlines AA3308 / AA4341: PHL 2027-01-01 07:35:00 → STL 2027-01-01 12:42:00; 1 stop(s) via BOS; 367 minutes. Local airport times.
  • AA3308: PHL 2027-01-01 07:35:00 → BOS 2027-01-01 09:04:00; layover at BOS: 75 minutes.
  • AA4341: BOS 2027-01-01 10:19:00 → STL 2027-01-01 12:42:00.
• American Airlines AA5308: STL 2027-01-04 06:12:00 → PHL 2027-01-04 09:32:00; nonstop; 140 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 31, 2026 · Return options
• Jan 2, 2027 · Return options
• Hotels in St. Louis with Axel

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