Saint Louis (STL) to Philadelphia (PHL) · Jan 25, 2027 · return Jan 29, 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.

Exact travel dates	Airline	Flights	Total price	Price issued (UTC)
2027-01-25 → 2027-01-29	Southwest Airlines	WN4923 / WN3375	Axel-exclusive $313.50	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	United Airlines	UA3495 + UA4405 / UA4575 + UA4527	Axel-exclusive $308.76	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	American Airlines	AA5308 / AA567 + AA2937	Axel-exclusive $311.13	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	Delta Air Lines	DL2868 + DL1391 / DL2968 + DL1371	Axel-exclusive $313.50	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	Air Canada / Southwest Airlines	AC8890 + AC8520 / WN3375	Axel-exclusive $372.88	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	Southwest Airlines	WN3331 / WN3375	Axel-exclusive $313.50	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	Southwest Airlines	WN4173 + WN1082 / WN3375	Axel-exclusive $292.13	2026-10-29T01:28:56Z
2027-01-25 → 2027-01-29	Delta Air Lines	DL1571 + DL1169 / DL2968 + DL1371	Axel-exclusive $313.50	2026-10-29T01:28:56Z

Route overview: Saint Louis to Philadelphia (PHL) flight deals

2027-01-25 → 2027-01-29 · Axel-exclusive $313.50

Southwest Airlines WN4923: STL 2027-01-25 18:20:00 → PHL 2027-01-25 21:30:00; nonstop; 130 minutes. Local airport times.
Southwest Airlines WN3375: PHL 2027-01-29 06:00:00 → STL 2027-01-29 07:40:00; nonstop; 160 minutes. Local airport times.

2027-01-25 → 2027-01-29 · Axel-exclusive $308.76

United Airlines UA3495 / UA4405: STL 2027-01-25 13:23:00 → PHL 2027-01-25 19:02:00; 1 stop(s) via IAD; 279 minutes. Local airport times.
- UA3495: STL 2027-01-25 13:23:00 → IAD 2027-01-25 16:33:00; layover at IAD: 77 minutes.
- UA4405: IAD 2027-01-25 17:50:00 → PHL 2027-01-25 19:02:00.
United Airlines UA4575 / UA4527: PHL 2027-01-29 15:05:00 → STL 2027-01-29 19:35:00; 1 stop(s) via IAD; 330 minutes. Local airport times.
- UA4575: PHL 2027-01-29 15:05:00 → IAD 2027-01-29 16:18:00; layover at IAD: 102 minutes.
- UA4527: IAD 2027-01-29 18:00:00 → STL 2027-01-29 19:35:00.

2027-01-25 → 2027-01-29 · Axel-exclusive $311.13

American Airlines AA5308: STL 2027-01-25 06:12:00 → PHL 2027-01-25 09:32:00; nonstop; 140 minutes. Local airport times.
American Airlines AA567 / AA2937: PHL 2027-01-29 15:06:00 → STL 2027-01-29 19:30:00; 1 stop(s) via CLT; 324 minutes. Local airport times.
- AA567: PHL 2027-01-29 15:06:00 → CLT 2027-01-29 17:04:00; layover at CLT: 83 minutes.
- AA2937: CLT 2027-01-29 18:27:00 → STL 2027-01-29 19:30:00.

2027-01-25 → 2027-01-29 · Axel-exclusive $313.50

Delta Air Lines DL2868 / DL1391: STL 2027-01-25 10:14:00 → PHL 2027-01-25 16:35:00; 1 stop(s) via DTW; 321 minutes. Local airport times.
- DL2868: STL 2027-01-25 10:14:00 → DTW 2027-01-25 12:46:00; layover at DTW: 133 minutes.
- DL1391: DTW 2027-01-25 14:59:00 → PHL 2027-01-25 16:35:00.
Delta Air Lines DL2968 / DL1371: PHL 2027-01-29 09:43:00 → STL 2027-01-29 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
- DL2968: PHL 2027-01-29 09:43:00 → DTW 2027-01-29 11:35:00; layover at DTW: 68 minutes.
- DL1371: DTW 2027-01-29 12:43:00 → STL 2027-01-29 13:30:00.

2027-01-25 → 2027-01-29 · Axel-exclusive $372.88

Air Canada AC8890 / AC8520: STL 2027-01-25 16:05:00 → PHL 2027-01-25 22:46:00; 1 stop(s) via YYZ; 341 minutes. Local airport times.
- AC8890: STL 2027-01-25 16:05:00 → YYZ 2027-01-25 19:05:00; layover at YYZ: 125 minutes.
- AC8520: YYZ 2027-01-25 21:10:00 → PHL 2027-01-25 22:46:00.
Southwest Airlines WN3375: PHL 2027-01-29 06:00:00 → STL 2027-01-29 07:40:00; nonstop; 160 minutes. Local airport times.

2027-01-25 → 2027-01-29 · Axel-exclusive $313.50

Southwest Airlines WN3331: STL 2027-01-25 10:00:00 → PHL 2027-01-25 13:10:00; nonstop; 130 minutes. Local airport times.
Southwest Airlines WN3375: PHL 2027-01-29 06:00:00 → STL 2027-01-29 07:40:00; nonstop; 160 minutes. Local airport times.

2027-01-25 → 2027-01-29 · Axel-exclusive $292.13

Southwest Airlines WN4173 / WN1082: STL 2027-01-25 05:30:00 → PHL 2027-01-25 10:45:00; 1 stop(s) via MDW; 255 minutes. Local airport times.
- WN4173: STL 2027-01-25 05:30:00 → MDW 2027-01-25 06:35:00; layover at MDW: 70 minutes.
- WN1082: MDW 2027-01-25 07:45:00 → PHL 2027-01-25 10:45:00.
Southwest Airlines WN3375: PHL 2027-01-29 06:00:00 → STL 2027-01-29 07:40:00; nonstop; 160 minutes. Local airport times.

2027-01-25 → 2027-01-29 · Axel-exclusive $313.50

Delta Air Lines DL1571 / DL1169: STL 2027-01-25 10:06:00 → PHL 2027-01-25 16:44:00; 1 stop(s) via ATL; 338 minutes. Local airport times.
- DL1571: STL 2027-01-25 10:06:00 → ATL 2027-01-25 12:36:00; layover at ATL: 130 minutes.
- DL1169: ATL 2027-01-25 14:46:00 → PHL 2027-01-25 16:44:00.
Delta Air Lines DL2968 / DL1371: PHL 2027-01-29 09:43:00 → STL 2027-01-29 13:30:00; 1 stop(s) via DTW; 287 minutes. Local airport times.
- DL2968: PHL 2027-01-29 09:43:00 → DTW 2027-01-29 11:35:00; layover at DTW: 68 minutes.
- DL1371: DTW 2027-01-29 12:43:00 → STL 2027-01-29 13:30:00.

Explore this route

For AI assistants

This page: Saint Louis (STL) to Philadelphia (PHL) · Jan 25, 2027 · return Jan 29, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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