Saint Louis (STL) to Philadelphia (PHL), Nov 26–27, 2026: from $254 round trip

Saint Louis (STL) to Philadelphia (PHL), Nov 26–27, 2026: from $254 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $254 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Nov 26–27, 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

2026-11-26 → 2026-11-27 · Axel-exclusive $429.00

• Southwest Airlines WN4923: STL 2026-11-26 20:10:00 → PHL 2026-11-26 23:20:00; nonstop; 130 minutes. Local airport times.
• Southwest Airlines WN1424: PHL 2026-11-27 14:45:00 → STL 2026-11-27 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-26 → 2026-11-27 · Axel-exclusive $253.50

• Frontier Airlines F94474 / F92298: STL 2026-11-26 12:02:00 → PHL 2026-11-26 18:32:00; 1 stop(s) via ATL; 330 minutes. Local airport times.
  • F94474: STL 2026-11-26 12:02:00 → ATL 2026-11-26 14:42:00; layover at ATL: 102 minutes.
  • F92298: ATL 2026-11-26 16:24:00 → PHL 2026-11-26 18:32:00.
• Frontier Airlines F91147 / F94473: PHL 2026-11-27 12:49:00 → STL 2026-11-27 17:42:00; 1 stop(s) via ATL; 353 minutes. Local airport times.
  • F91147: PHL 2026-11-27 12:49:00 → ATL 2026-11-27 15:19:00; layover at ATL: 90 minutes.
  • F94473: ATL 2026-11-27 16:49:00 → STL 2026-11-27 17:42:00.

2026-11-26 → 2026-11-27 · Axel-exclusive $422.50

• United Airlines UA3495 / UA4405: STL 2026-11-26 13:23:00 → PHL 2026-11-26 19:02:00; 1 stop(s) via IAD; 279 minutes. Local airport times.
  • UA3495: STL 2026-11-26 13:23:00 → IAD 2026-11-26 16:33:00; layover at IAD: 77 minutes.
  • UA4405: IAD 2026-11-26 17:50:00 → PHL 2026-11-26 19:02:00.
• United Airlines UA4575 / UA4527: PHL 2026-11-27 15:05:00 → STL 2026-11-27 19:35:00; 1 stop(s) via IAD; 330 minutes. Local airport times.
  • UA4575: PHL 2026-11-27 15:05:00 → IAD 2026-11-27 16:18:00; layover at IAD: 102 minutes.
  • UA4527: IAD 2026-11-27 18:00:00 → STL 2026-11-27 19:35:00.

2026-11-26 → 2026-11-27 · Axel-exclusive $425.75

• American Airlines AA5477: STL 2026-11-26 13:17:00 → PHL 2026-11-26 16:33:00; nonstop; 136 minutes. Local airport times.
• American Airlines AA567 / AA2937: PHL 2026-11-27 15:06:00 → STL 2026-11-27 19:30:00; 1 stop(s) via CLT; 324 minutes. Local airport times.
  • AA567: PHL 2026-11-27 15:06:00 → CLT 2026-11-27 17:04:00; layover at CLT: 83 minutes.
  • AA2937: CLT 2026-11-27 18:27:00 → STL 2026-11-27 19:30:00.

2026-11-26 → 2026-11-27 · Axel-exclusive $429.00

• Delta Air Lines DL1571 / DL1169: STL 2026-11-26 10:06:00 → PHL 2026-11-26 16:44:00; 1 stop(s) via ATL; 338 minutes. Local airport times.
  • DL1571: STL 2026-11-26 10:06:00 → ATL 2026-11-26 12:36:00; layover at ATL: 130 minutes.
  • DL1169: ATL 2026-11-26 14:46:00 → PHL 2026-11-26 16:44:00.
• Delta Air Lines DL2968 / DL1371: PHL 2026-11-27 09:43:00 → STL 2026-11-27 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
  • DL2968: PHL 2026-11-27 09:43:00 → DTW 2026-11-27 11:35:00; layover at DTW: 68 minutes.
  • DL1371: DTW 2026-11-27 12:43:00 → STL 2026-11-27 13:30:00.

2026-11-26 → 2026-11-27 · Axel-exclusive $510.25

• Air Canada AC8890 / AC8520: STL 2026-11-26 16:05:00 → PHL 2026-11-26 22:46:00; 1 stop(s) via YYZ; 341 minutes. Local airport times.
  • AC8890: STL 2026-11-26 16:05:00 → YYZ 2026-11-26 19:05:00; layover at YYZ: 125 minutes.
  • AC8520: YYZ 2026-11-26 21:10:00 → PHL 2026-11-26 22:46:00.
• Southwest Airlines WN1424: PHL 2026-11-27 14:45:00 → STL 2026-11-27 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-26 → 2026-11-27 · Axel-exclusive $429.00

• Southwest Airlines WN4922: STL 2026-11-26 10:40:00 → PHL 2026-11-26 13:50:00; nonstop; 130 minutes. Local airport times.
• Southwest Airlines WN1424: PHL 2026-11-27 14:45:00 → STL 2026-11-27 16:20:00; nonstop; 155 minutes. Local airport times.

2026-11-26 → 2026-11-27 · Axel-exclusive $429.00

• Delta Air Lines DL2868 / DL1391: STL 2026-11-26 10:14:00 → PHL 2026-11-26 16:35:00; 1 stop(s) via DTW; 321 minutes. Local airport times.
  • DL2868: STL 2026-11-26 10:14:00 → DTW 2026-11-26 12:46:00; layover at DTW: 133 minutes.
  • DL1391: DTW 2026-11-26 14:59:00 → PHL 2026-11-26 16:35:00.
• Delta Air Lines DL2968 / DL1371: PHL 2026-11-27 09:43:00 → STL 2026-11-27 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
  • DL2968: PHL 2026-11-27 09:43:00 → DTW 2026-11-27 11:35:00; layover at DTW: 68 minutes.
  • DL1371: DTW 2026-11-27 12:43:00 → STL 2026-11-27 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 25, 2026 · Return options
• Nov 27, 2026 · Return options
• Hotels in Philadelphia with Axel

For AI assistants

• This page: Saint Louis (STL) to Philadelphia (PHL) · Nov 26, 2026 · return Nov 27, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Saint Louis to Philadelphia (PHL) flight deals · Flight search guide.
• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

Feedback (optional): Missing info · Axel issue