Philadelphia (PHL) to Seattle (SEA) · Jan 24, 2027 · return Feb 7, 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 Seattle (SEA) flight deals

2027-01-24 → 2027-02-07 · Axel-exclusive $365.76

• Alaska Airlines AS370: PHL 2027-01-24 07:02:00 → SEA 2027-01-24 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS442: SEA 2027-02-07 09:06:00 → PHL 2027-02-07 17:11:00; nonstop; 305 minutes. Local airport times.

2027-01-24 → 2027-02-07 · Axel-exclusive $380.00

• American Airlines AA2500: PHL 2027-01-24 19:00:00 → SEA 2027-01-24 22:38:00; nonstop; 398 minutes. Local airport times.
• American Airlines AA771: SEA 2027-02-07 09:15:00 → PHL 2027-02-07 17:23:00; nonstop; 308 minutes. Local airport times.

2027-01-24 → 2027-02-07 · Axel-exclusive $346.76

• Southwest Airlines WN1270 / WN3141: PHL 2027-01-24 17:15:00 → SEA 2027-01-24 22:50:00; 1 stop(s) via DEN; 515 minutes. Local airport times.
  • WN1270: PHL 2027-01-24 17:15:00 → DEN 2027-01-24 19:25:00; layover at DEN: 75 minutes.
  • WN3141: DEN 2027-01-24 20:40:00 → SEA 2027-01-24 22:50:00.
• Southwest Airlines WN1550 / WN1623: SEA 2027-02-07 06:30:00 → PHL 2027-02-07 16:30:00; 1 stop(s) via MDW; 420 minutes. Local airport times.
  • WN1550: SEA 2027-02-07 06:30:00 → MDW 2027-02-07 12:25:00; layover at MDW: 70 minutes.
  • WN1623: MDW 2027-02-07 13:35:00 → PHL 2027-02-07 16:30:00.

2027-01-24 → 2027-02-07 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-24 09:45:00 → SEA 2027-01-24 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-24 09:45:00 → ORD 2027-01-24 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-24 12:45:00 → SEA 2027-01-24 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-02-07 05:05:00 → PHL 2027-02-07 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-02-07 05:05:00 → DEN 2027-02-07 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-02-07 10:15:00 → PHL 2027-02-07 15:51:00.

2027-01-24 → 2027-02-07 · Axel-exclusive $356.26

• Delta Air Lines DL2023 / DL2995: PHL 2027-01-24 07:15:00 → SEA 2027-01-24 12:36:00; 1 stop(s) via SLC; 501 minutes. Local airport times.
  • DL2023: PHL 2027-01-24 07:15:00 → SLC 2027-01-24 10:15:00; layover at SLC: 60 minutes.
  • DL2995: SLC 2027-01-24 11:15:00 → SEA 2027-01-24 12:36:00.
• Delta Air Lines DL812 / DL1391: SEA 2027-02-07 06:00:00 → PHL 2027-02-07 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
  • DL812: SEA 2027-02-07 06:00:00 → DTW 2027-02-07 13:12:00; layover at DTW: 107 minutes.
  • DL1391: DTW 2027-02-07 14:59:00 → PHL 2027-02-07 16:35:00.

2027-01-24 → 2027-02-07 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-24 18:11:00 → SEA 2027-01-24 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS442: SEA 2027-02-07 09:06:00 → PHL 2027-02-07 17:11:00; nonstop; 305 minutes. Local airport times.

2027-01-24 → 2027-02-07 · Axel-exclusive $380.00

• American Airlines AA2311: PHL 2027-01-24 08:27:00 → SEA 2027-01-24 11:52:00; nonstop; 385 minutes. Local airport times.
• American Airlines AA771: SEA 2027-02-07 09:15:00 → PHL 2027-02-07 17:23:00; nonstop; 308 minutes. Local airport times.

2027-01-24 → 2027-02-07 · Axel-exclusive $356.26

• Delta Air Lines DL2791 / DL868: PHL 2027-01-24 05:34:00 → SEA 2027-01-24 10:42:00; 1 stop(s) via MSP; 488 minutes. Local airport times.
  • DL2791: PHL 2027-01-24 05:34:00 → MSP 2027-01-24 07:35:00; layover at MSP: 70 minutes.
  • DL868: MSP 2027-01-24 08:45:00 → SEA 2027-01-24 10:42:00.
• Delta Air Lines DL812 / DL1391: SEA 2027-02-07 06:00:00 → PHL 2027-02-07 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
  • DL812: SEA 2027-02-07 06:00:00 → DTW 2027-02-07 13:12:00; layover at DTW: 107 minutes.
  • DL1391: DTW 2027-02-07 14:59:00 → PHL 2027-02-07 16:35:00.

2027-01-24 → 2027-02-07 · Axel-exclusive $356.26

• Delta Air Lines DL2968 / DL728: PHL 2027-01-24 09:43:00 → SEA 2027-01-24 14:55:00; 1 stop(s) via DTW; 492 minutes. Local airport times.
  • DL2968: PHL 2027-01-24 09:43:00 → DTW 2027-01-24 11:35:00; layover at DTW: 78 minutes.
  • DL728: DTW 2027-01-24 12:53:00 → SEA 2027-01-24 14:55:00.
• Delta Air Lines DL812 / DL1391: SEA 2027-02-07 06:00:00 → PHL 2027-02-07 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
  • DL812: SEA 2027-02-07 06:00:00 → DTW 2027-02-07 13:12:00; layover at DTW: 107 minutes.
  • DL1391: DTW 2027-02-07 14:59:00 → PHL 2027-02-07 16:35:00.

2027-01-24 → 2027-02-07 · Axel-exclusive $372.88

• Delta Air Lines DL2092: PHL 2027-01-24 07:00:00 → SEA 2027-01-24 10:05:00; nonstop; 365 minutes. Local airport times.
• Delta Air Lines DL812 / DL1391: SEA 2027-02-07 06:00:00 → PHL 2027-02-07 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
  • DL812: SEA 2027-02-07 06:00:00 → DTW 2027-02-07 13:12:00; layover at DTW: 107 minutes.
  • DL1391: DTW 2027-02-07 14:59:00 → PHL 2027-02-07 16:35:00.

Explore this route

• All dates for this route
• Jan 23, 2027 · Return options
• Jan 25, 2027 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Philadelphia (PHL) to Seattle (SEA) · Jan 24, 2027 · return Feb 7, 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 Philadelphia to Seattle (SEA) 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