Philadelphia (PHL) to Saint Louis (STL) · Jan 16, 2027 · return Jan 19, 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

2027-01-16 → 2027-01-19 · Axel-exclusive $285.00

• Southwest Airlines WN1424: PHL 2027-01-16 14:45:00 → STL 2027-01-16 16:20:00; nonstop; 155 minutes. Local airport times.
• Southwest Airlines WN4923: STL 2027-01-19 18:20:00 → PHL 2027-01-19 21:30:00; nonstop; 130 minutes. Local airport times.

2027-01-16 → 2027-01-19 · Axel-exclusive $323.00

• American Airlines AA5536: PHL 2027-01-16 20:55:00 → STL 2027-01-16 22:42:00; nonstop; 167 minutes. Local airport times.
• American Airlines AA5477: STL 2027-01-19 13:17:00 → PHL 2027-01-19 16:33:00; nonstop; 136 minutes. Local airport times.

2027-01-16 → 2027-01-19 · Axel-exclusive $171.00

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

2027-01-16 → 2027-01-19 · Axel-exclusive $294.50

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

2027-01-16 → 2027-01-19 · Axel-exclusive $304.00

• Delta Air Lines DL2968 / DL1371: PHL 2027-01-16 09:43:00 → STL 2027-01-16 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
  • DL2968: PHL 2027-01-16 09:43:00 → DTW 2027-01-16 11:35:00; layover at DTW: 68 minutes.
  • DL1371: DTW 2027-01-16 12:43:00 → STL 2027-01-16 13:30:00.
• Delta Air Lines DL1571 / DL1169: STL 2027-01-19 10:06:00 → PHL 2027-01-19 16:44:00; 1 stop(s) via ATL; 338 minutes. Local airport times.
  • DL1571: STL 2027-01-19 10:06:00 → ATL 2027-01-19 12:36:00; layover at ATL: 130 minutes.
  • DL1169: ATL 2027-01-19 14:46:00 → PHL 2027-01-19 16:44:00.

2027-01-16 → 2027-01-19 · Axel-exclusive $285.00

• Southwest Airlines WN3375: PHL 2027-01-16 06:00:00 → STL 2027-01-16 07:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN4923: STL 2027-01-19 18:20:00 → PHL 2027-01-19 21:30:00; nonstop; 130 minutes. Local airport times.

2027-01-16 → 2027-01-19 · Axel-exclusive $323.00

• American Airlines AA5105: PHL 2027-01-16 10:30:00 → STL 2027-01-16 12:18:00; nonstop; 168 minutes. Local airport times.
• American Airlines AA5477: STL 2027-01-19 13:17:00 → PHL 2027-01-19 16:33:00; nonstop; 136 minutes. Local airport times.

2027-01-16 → 2027-01-19 · Axel-exclusive $275.50

• Southwest Airlines WN3372 / WN2737: PHL 2027-01-16 07:30:00 → STL 2027-01-16 12:40:00; 1 stop(s) via MDW; 370 minutes. Local airport times.
  • WN3372: PHL 2027-01-16 07:30:00 → MDW 2027-01-16 08:50:00; layover at MDW: 160 minutes.
  • WN2737: MDW 2027-01-16 11:30:00 → STL 2027-01-16 12:40:00.
• Southwest Airlines WN4923: STL 2027-01-19 18:20:00 → PHL 2027-01-19 21:30:00; nonstop; 130 minutes. Local airport times.

2027-01-16 → 2027-01-19 · Axel-exclusive $275.50

• Southwest Airlines WN3375: PHL 2027-01-16 06:00:00 → STL 2027-01-16 07:45:00; nonstop; 165 minutes. Local airport times.
• Southwest Airlines WN4173 / WN1082: STL 2027-01-19 05:30:00 → PHL 2027-01-19 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
  • WN4173: STL 2027-01-19 05:30:00 → MDW 2027-01-19 06:35:00; layover at MDW: 70 minutes.
  • WN1082: MDW 2027-01-19 07:45:00 → PHL 2027-01-19 10:45:00.

2027-01-16 → 2027-01-19 · Axel-exclusive $304.00

• American Airlines AA567 / AA2937: PHL 2027-01-16 15:06:00 → STL 2027-01-16 19:30:00; 1 stop(s) via CLT; 324 minutes. Local airport times.
  • AA567: PHL 2027-01-16 15:06:00 → CLT 2027-01-16 17:04:00; layover at CLT: 83 minutes.
  • AA2937: CLT 2027-01-16 18:27:00 → STL 2027-01-16 19:30:00.
• American Airlines AA5477: STL 2027-01-19 13:17:00 → PHL 2027-01-19 16:33:00; nonstop; 136 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Jan 15, 2027 · Return options
• Jan 17, 2027 · Return options
• Hotels in St. Louis with Axel

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