Philadelphia (PHL) to Seattle (SEA), Jan 21, 2027: round trips from $352, one way from $185

Philadelphia (PHL) to Seattle (SEA), Jan 21, 2027: round trips from $352, one way from $185 on Axel, checked Oct 29, 2026. Lowest published fares: $352 round trip, Axel-exclusive, United Airlines, 1 stop, Jan 21–22, 2027; $185 one way, Axel-exclusive, Delta Air Lines, 1 stop, Jan 21, 2027; 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.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Seattle for these nights (Jan 21–22, 2027 · 1 night · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $105 total · 4★ citizenM Seattle Pioneer Square, $116 total · 5★ Fairmont Olympic Hotel, $302 total
• Hotels in Seattle for these nights (Jan 21–23, 2027 · 2 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $207 total · 4★ citizenM Seattle Pioneer Square, $247 total · 5★ Fairmont Olympic Hotel, $604 total
• Hotels in Seattle for these nights (Jan 21–24, 2027 · 3 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $309 total · 4★ citizenM Seattle Pioneer Square, $363 total · 5★ Fairmont Olympic Hotel, $915 total
• Hotels in Seattle for these nights (Jan 21–25, 2027 · 4 nights · 2 adults, 1 room): 3★ Holiday Inn Express And Suites Seattle Downtown - Lake Union by IHG, $417 total · 4★ citizenM Seattle Pioneer Square, $475 total · 5★ Fairmont Olympic Hotel, $1,196 total
• Hotels in Seattle for these nights (Jan 21–26, 2027 · 5 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $524 total · 4★ citizenM Seattle Pioneer Square, $610 total · 5★ Fairmont Olympic Hotel, $1,517 total
• Hotels in Seattle for these nights (Jan 21–27, 2027 · 6 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $632 total · 4★ citizenM Seattle Pioneer Square, $726 total · 5★ Fairmont Olympic Hotel, $1,885 total
• Hotels in Seattle for these nights (Jan 21–28, 2027 · 7 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $739 total · 4★ citizenM Seattle Pioneer Square, $842 total · 5★ Fairmont Olympic Hotel, $2,249 total
• Hotels in Seattle for these nights (Jan 21–29, 2027 · 8 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $848 total · 4★ citizenM Seattle Pioneer Square, $973 total · 5★ Fairmont Olympic Hotel, $2,550 total
• Hotels in Seattle for these nights (Jan 21–30, 2027 · 9 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $952 total · 4★ citizenM Seattle Pioneer Square, $1,102 total · 5★ Fairmont Olympic Hotel, $2,875 total
• Hotels in Seattle for these nights (Jan 21–31, 2027 · 10 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,054 total · 4★ citizenM Seattle Pioneer Square, $1,229 total · 5★ Fairmont Olympic Hotel, $3,206 total
• Hotels in Seattle for these nights (Jan 21 – Feb 1, 2027 · 11 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,150 total · 4★ citizenM Seattle Pioneer Square, $1,350 total · 5★ Fairmont Olympic Hotel, $3,487 total
• Hotels in Seattle for these nights (Jan 21 – Feb 2, 2027 · 12 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,245 total · 4★ citizenM Seattle Pioneer Square, $1,483 total · 5★ Fairmont Olympic Hotel, $3,789 total
• Hotels in Seattle for these nights (Jan 21 – Feb 3, 2027 · 13 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,351 total · 4★ citizenM Seattle Pioneer Square, $1,614 total · 5★ Fairmont Olympic Hotel, $4,100 total
• Hotels in Seattle for these nights (Jan 21 – Feb 4, 2027 · 14 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,457 total · 4★ citizenM Seattle Pioneer Square, $1,742 total · 5★ Fairmont Olympic Hotel, $4,408 total

All hotels in Seattle

Route overview: Philadelphia to Seattle (SEA) flight deals

2027-01-21 · one way · Axel-exclusive $185.25

• Delta Air Lines DL2968 / DL728: PHL 2027-01-21 09:43:00 → SEA 2027-01-21 14:55:00; 1 stop(s) via DTW; 492 minutes. Local airport times.
  • DL2968: PHL 2027-01-21 09:43:00 → DTW 2027-01-21 11:35:00; layover at DTW: 78 minutes.
  • DL728: DTW 2027-01-21 12:53:00 → SEA 2027-01-21 14:55:00.

2027-01-21 · one way · Axel-exclusive $190.00

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.

2027-01-21 → 2027-01-22 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-22 05:05:00 → PHL 2027-01-22 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-22 05:05:00 → DEN 2027-01-22 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-22 10:15:00 → PHL 2027-01-22 15:51:00.

2027-01-21 → 2027-01-22 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-01-22 21:33:00 → PHL 2027-01-23 05:42:00; nonstop; 309 minutes. Local airport times.

2027-01-21 → 2027-01-23 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-23 05:05:00 → PHL 2027-01-23 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-23 05:05:00 → DEN 2027-01-23 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-23 10:15:00 → PHL 2027-01-23 15:51:00.

2027-01-21 → 2027-01-23 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-01-23 21:33:00 → PHL 2027-01-24 05:42:00; nonstop; 309 minutes. Local airport times.

2027-01-21 → 2027-01-24 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-24 05:05:00 → PHL 2027-01-24 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-24 05:05:00 → DEN 2027-01-24 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-24 10:15:00 → PHL 2027-01-24 15:51:00.

2027-01-21 → 2027-01-24 · Axel-exclusive $365.76

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

2027-01-21 → 2027-01-25 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-25 05:05:00 → PHL 2027-01-25 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-25 05:05:00 → DEN 2027-01-25 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-25 10:15:00 → PHL 2027-01-25 15:51:00.

2027-01-21 → 2027-01-25 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-01-25 21:35:00 → PHL 2027-01-26 05:40:00; nonstop; 305 minutes. Local airport times.

2027-01-21 → 2027-01-27 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-27 05:05:00 → PHL 2027-01-27 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-27 05:05:00 → DEN 2027-01-27 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-27 10:15:00 → PHL 2027-01-27 15:51:00.

2027-01-21 → 2027-01-27 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-01-27 21:35:00 → PHL 2027-01-28 05:40:00; nonstop; 305 minutes. Local airport times.

2027-01-21 → 2027-01-28 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-28 05:05:00 → PHL 2027-01-28 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-28 05:05:00 → DEN 2027-01-28 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-28 10:15:00 → PHL 2027-01-28 15:51:00.

2027-01-21 → 2027-01-28 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS442: SEA 2027-01-28 08:32:00 → PHL 2027-01-28 16:45:00; nonstop; 313 minutes. Local airport times.

2027-01-21 → 2027-01-29 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-29 05:05:00 → PHL 2027-01-29 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-29 05:05:00 → DEN 2027-01-29 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-29 10:15:00 → PHL 2027-01-29 15:51:00.

2027-01-21 → 2027-01-29 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-01-29 21:33:00 → PHL 2027-01-30 05:42:00; nonstop; 309 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-31 05:05:00 → PHL 2027-01-31 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-31 05:05:00 → DEN 2027-01-31 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-31 10:15:00 → PHL 2027-01-31 15:51:00.

2027-01-21 → 2027-01-31 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS442: SEA 2027-01-31 09:06:00 → PHL 2027-01-31 17:11:00; nonstop; 305 minutes. Local airport times.

2027-01-21 → 2027-02-01 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-02-01 05:05:00 → PHL 2027-02-01 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-02-01 05:05:00 → DEN 2027-02-01 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-02-01 10:15:00 → PHL 2027-02-01 15:51:00.

2027-01-21 → 2027-02-01 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-02-01 21:35:00 → PHL 2027-02-02 05:40:00; nonstop; 305 minutes. Local airport times.

2027-01-21 → 2027-02-02 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-02-02 05:05:00 → PHL 2027-02-02 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-02-02 05:05:00 → DEN 2027-02-02 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-02-02 10:15:00 → PHL 2027-02-02 15:51:00.

2027-01-21 → 2027-02-02 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-02-02 21:35:00 → PHL 2027-02-03 05:40:00; nonstop; 305 minutes. Local airport times.

2027-01-21 → 2027-02-04 · Axel-exclusive $351.50

• United Airlines UA1811 / UA1660: PHL 2027-01-21 09:45:00 → SEA 2027-01-21 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-21 09:45:00 → ORD 2027-01-21 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-21 12:45:00 → SEA 2027-01-21 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-02-04 05:05:00 → PHL 2027-02-04 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-02-04 05:05:00 → DEN 2027-02-04 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-02-04 10:15:00 → PHL 2027-02-04 15:51:00.

2027-01-21 → 2027-02-04 · Axel-exclusive $365.76

• Alaska Airlines AS443: PHL 2027-01-21 18:11:00 → SEA 2027-01-21 21:53:00; nonstop; 402 minutes. Local airport times.
• Alaska Airlines AS442: SEA 2027-02-04 08:32:00 → PHL 2027-02-04 16:45:00; nonstop; 313 minutes. Local airport times.

Explore this route

• All dates for this route
• Jan 20, 2027 · Return options
• Jan 22, 2027 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Philadelphia (PHL) to Seattle (SEA) · Jan 21, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
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• 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.

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