Saint Louis (STL) to Philadelphia (PHL), Nov 23–25, 2026: from $254 round trip

Lowest published fare: $254 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Nov 23–25, 2026, 1 adult, economy, checked Oct 29, 2026. 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 Philadelphia (PHL) flight deals

2026-11-23 → 2026-11-25 · Axel-exclusive $429.00

• Southwest Airlines WN4923: STL 2026-11-23 18:20:00 → PHL 2026-11-23 21:30:00; nonstop; 130 minutes. Local airport times.
• Southwest Airlines WN1424: PHL 2026-11-25 14:45:00 → STL 2026-11-25 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-23 → 2026-11-25 · Axel-exclusive $455.00

• American Airlines AA4796: STL 2026-11-23 13:15:00 → PHL 2026-11-23 16:30:00; nonstop; 135 minutes. Local airport times.
• American Airlines AA5073: PHL 2026-11-25 10:35:00 → STL 2026-11-25 12:25:00; nonstop; 170 minutes. Local airport times.

2026-11-23 → 2026-11-25 · Axel-exclusive $253.50

• Frontier Airlines F94474 / F92298: STL 2026-11-23 12:02:00 → PHL 2026-11-23 18:32:00; 1 stop(s) via ATL; 330 minutes. Local airport times.
  • F94474: STL 2026-11-23 12:02:00 → ATL 2026-11-23 14:42:00; layover at ATL: 102 minutes.
  • F92298: ATL 2026-11-23 16:24:00 → PHL 2026-11-23 18:32:00.
• Frontier Airlines F91147 / F94473: PHL 2026-11-25 12:49:00 → STL 2026-11-25 17:42:00; 1 stop(s) via ATL; 353 minutes. Local airport times.
  • F91147: PHL 2026-11-25 12:49:00 → ATL 2026-11-25 15:19:00; layover at ATL: 90 minutes.
  • F94473: ATL 2026-11-25 16:49:00 → STL 2026-11-25 17:42:00.

2026-11-23 → 2026-11-25 · Axel-exclusive $422.50

• United Airlines UA3495 / UA4405: STL 2026-11-23 13:23:00 → PHL 2026-11-23 19:02:00; 1 stop(s) via IAD; 279 minutes. Local airport times.
  • UA3495: STL 2026-11-23 13:23:00 → IAD 2026-11-23 16:33:00; layover at IAD: 77 minutes.
  • UA4405: IAD 2026-11-23 17:50:00 → PHL 2026-11-23 19:02:00.
• United Airlines UA4575 / UA4527: PHL 2026-11-25 15:05:00 → STL 2026-11-25 19:35:00; 1 stop(s) via IAD; 330 minutes. Local airport times.
  • UA4575: PHL 2026-11-25 15:05:00 → IAD 2026-11-25 16:18:00; layover at IAD: 102 minutes.
  • UA4527: IAD 2026-11-25 18:00:00 → STL 2026-11-25 19:35:00.

2026-11-23 → 2026-11-25 · Axel-exclusive $429.00

• Delta Air Lines DL2868 / DL1391: STL 2026-11-23 10:14:00 → PHL 2026-11-23 16:35:00; 1 stop(s) via DTW; 321 minutes. Local airport times.
  • DL2868: STL 2026-11-23 10:14:00 → DTW 2026-11-23 12:46:00; layover at DTW: 133 minutes.
  • DL1391: DTW 2026-11-23 14:59:00 → PHL 2026-11-23 16:35:00.
• Delta Air Lines DL2968 / DL1371: PHL 2026-11-25 09:43:00 → STL 2026-11-25 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
  • DL2968: PHL 2026-11-25 09:43:00 → DTW 2026-11-25 11:35:00; layover at DTW: 68 minutes.
  • DL1371: DTW 2026-11-25 12:43:00 → STL 2026-11-25 13:30:00.

2026-11-23 → 2026-11-25 · Axel-exclusive $510.25

• Air Canada AC8890 / AC8520: STL 2026-11-23 16:05:00 → PHL 2026-11-23 22:46:00; 1 stop(s) via YYZ; 341 minutes. Local airport times.
  • AC8890: STL 2026-11-23 16:05:00 → YYZ 2026-11-23 19:05:00; layover at YYZ: 125 minutes.
  • AC8520: YYZ 2026-11-23 21:10:00 → PHL 2026-11-23 22:46:00.
• Southwest Airlines WN1424: PHL 2026-11-25 14:45:00 → STL 2026-11-25 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-23 → 2026-11-25 · Axel-exclusive $429.00

• Southwest Airlines WN4922: STL 2026-11-23 10:40:00 → PHL 2026-11-23 13:50:00; nonstop; 130 minutes. Local airport times.
• Southwest Airlines WN1424: PHL 2026-11-25 14:45:00 → STL 2026-11-25 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-23 → 2026-11-25 · Axel-exclusive $455.00

• American Airlines AA5450: STL 2026-11-23 06:02:00 → PHL 2026-11-23 09:17:00; nonstop; 135 minutes. Local airport times.
• American Airlines AA5073: PHL 2026-11-25 10:35:00 → STL 2026-11-25 12:25:00; nonstop; 170 minutes. Local airport times.

2026-11-23 → 2026-11-25 · Axel-exclusive $399.75

• Southwest Airlines WN4173 / WN1082: STL 2026-11-23 05:30:00 → PHL 2026-11-23 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
  • WN4173: STL 2026-11-23 05:30:00 → MDW 2026-11-23 06:35:00; layover at MDW: 70 minutes.
  • WN1082: MDW 2026-11-23 07:45:00 → PHL 2026-11-23 10:45:00.
• Southwest Airlines WN1424: PHL 2026-11-25 14:45:00 → STL 2026-11-25 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-23 → 2026-11-25 · Axel-exclusive $429.00

• Delta Air Lines DL1571 / DL1169: STL 2026-11-23 10:06:00 → PHL 2026-11-23 16:44:00; 1 stop(s) via ATL; 338 minutes. Local airport times.
  • DL1571: STL 2026-11-23 10:06:00 → ATL 2026-11-23 12:36:00; layover at ATL: 130 minutes.
  • DL1169: ATL 2026-11-23 14:46:00 → PHL 2026-11-23 16:44:00.
• Delta Air Lines DL2968 / DL1371: PHL 2026-11-25 09:43:00 → STL 2026-11-25 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
  • DL2968: PHL 2026-11-25 09:43:00 → DTW 2026-11-25 11:35:00; layover at DTW: 68 minutes.
  • DL1371: DTW 2026-11-25 12:43:00 → STL 2026-11-25 13:30:00.

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
• Nov 22, 2026 · Return options
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