Philadelphia (PHL) to Seattle (SEA), Dec 19, 2026: round trips from $487, one way from $273

Philadelphia (PHL) to Seattle (SEA), Dec 19, 2026: round trips from $487, one way from $273 on Axel, checked Oct 29, 2026. Lowest published fares: $487 round trip, Axel-exclusive, United Airlines, 1 stop, Dec 19, 2026 – Jan 1, 2027; $273 one way, Axel-exclusive, Delta Air Lines, 1 stop, Dec 19, 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.

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 (Dec 19–20, 2026 · 1 night · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $81 total · 4★ Hilton Seattle Airport & Conference Center, $105 total · 5★ Fairmont Olympic Hotel, $287 total
• Hotels in Seattle for these nights (Dec 19–21, 2026 · 2 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $157 total · 4★ Hilton Seattle Airport & Conference Center, $210 total · 5★ Fairmont Olympic Hotel, $554 total
• Hotels in Seattle for these nights (Dec 19–22, 2026 · 3 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $235 total · 4★ Hilton Seattle Airport & Conference Center, $315 total · 5★ Fairmont Olympic Hotel, $850 total
• Hotels in Seattle for these nights (Dec 19–23, 2026 · 4 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $311 total · 4★ citizenM Seattle Pioneer Square, $420 total · 5★ Fairmont Olympic Hotel, $1,151 total
• Hotels in Seattle for these nights (Dec 19–24, 2026 · 5 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $389 total · 4★ citizenM Seattle Pioneer Square, $518 total · 5★ Fairmont Olympic Hotel, $1,433 total
• Hotels in Seattle for these nights (Dec 19–25, 2026 · 6 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $469 total · 4★ Hilton Seattle Airport & Conference Center, $630 total · 5★ Fairmont Olympic Hotel, $1,707 total
• Hotels in Seattle for these nights (Dec 19–26, 2026 · 7 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $548 total · 4★ Hilton Seattle Airport & Conference Center, $735 total · 5★ Fairmont Olympic Hotel, $2,064 total
• Hotels in Seattle for these nights (Dec 19–27, 2026 · 8 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $628 total · 4★ Hilton Seattle Airport & Conference Center, $840 total · 5★ Fairmont Olympic Hotel, $2,347 total
• Hotels in Seattle for these nights (Dec 19–28, 2026 · 9 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $704 total · 4★ Hilton Seattle Airport & Conference Center, $945 total · 5★ Fairmont Olympic Hotel, $2,609 total
• Hotels in Seattle for these nights (Dec 19–29, 2026 · 10 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $780 total · 4★ Hilton Seattle Airport & Conference Center, $1,050 total · 5★ Fairmont Olympic Hotel, $2,892 total
• Hotels in Seattle for these nights (Dec 19–30, 2026 · 11 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $856 total · 4★ Hilton Seattle Airport & Conference Center, $1,153 total · 5★ Fairmont Olympic Hotel, $3,170 total
• Hotels in Seattle for these nights (Dec 19–31, 2026 · 12 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $935 total · 4★ Hilton Seattle Airport & Conference Center, $1,258 total · 5★ Fairmont Olympic Hotel, $3,453 total
• Hotels in Seattle for these nights (Dec 19 – Jan 1, 2027 · 13 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,015 total · 4★ Hilton Seattle Airport & Conference Center, $1,363 total · 5★ Fairmont Olympic Hotel, $3,975 total
• Hotels in Seattle for these nights (Dec 19 – Jan 2, 2027 · 14 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,103 total · 4★ Hilton Seattle Airport & Conference Center, $1,464 total · 5★ Fairmont Olympic Hotel, $4,273 total

All hotels in Seattle

Route overview: Philadelphia to Seattle (SEA) flight deals

2026-12-19 · one way · Axel-exclusive $273.00

• Delta Air Lines DL2023 / DL2995: PHL 2026-12-19 07:15:00 → SEA 2026-12-19 12:36:00; 1 stop(s) via SLC; 501 minutes. Local airport times.
  • DL2023: PHL 2026-12-19 07:15:00 → SLC 2026-12-19 10:15:00; layover at SLC: 60 minutes.
  • DL2995: SLC 2026-12-19 11:15:00 → SEA 2026-12-19 12:36:00.

2026-12-19 · one way · Axel-exclusive $280.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.

2026-12-19 → 2026-12-20 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-20 05:05:00 → PHL 2026-12-20 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-20 05:05:00 → DEN 2026-12-20 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-20 10:15:00 → PHL 2026-12-20 15:51:00.

2026-12-19 → 2026-12-20 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-20 21:33:00 → PHL 2026-12-21 05:42:00; nonstop; 309 minutes. Local airport times.

2026-12-19 → 2026-12-21 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-21 05:05:00 → PHL 2026-12-21 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-21 05:05:00 → DEN 2026-12-21 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-21 10:15:00 → PHL 2026-12-21 15:51:00.

2026-12-19 → 2026-12-21 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-21 21:35:00 → PHL 2026-12-22 05:40:00; nonstop; 305 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-22 05:05:00 → PHL 2026-12-22 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-22 05:05:00 → DEN 2026-12-22 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-22 10:15:00 → PHL 2026-12-22 15:51:00.

2026-12-19 → 2026-12-22 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-22 21:35:00 → PHL 2026-12-23 05:40:00; nonstop; 305 minutes. Local airport times.

2026-12-19 → 2026-12-23 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-23 05:05:00 → PHL 2026-12-23 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-23 05:05:00 → DEN 2026-12-23 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-23 10:15:00 → PHL 2026-12-23 15:51:00.

2026-12-19 → 2026-12-23 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-23 21:35:00 → PHL 2026-12-24 05:40:00; nonstop; 305 minutes. Local airport times.

2026-12-19 → 2026-12-25 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-25 05:05:00 → PHL 2026-12-25 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-25 05:05:00 → DEN 2026-12-25 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-25 10:15:00 → PHL 2026-12-25 15:51:00.

2026-12-19 → 2026-12-25 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-25 21:33:00 → PHL 2026-12-26 05:42:00; nonstop; 309 minutes. Local airport times.

2026-12-19 → 2026-12-26 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-26 05:05:00 → PHL 2026-12-26 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-26 05:05:00 → DEN 2026-12-26 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-26 10:15:00 → PHL 2026-12-26 15:51:00.

2026-12-19 → 2026-12-26 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-26 21:33:00 → PHL 2026-12-27 05:42:00; nonstop; 309 minutes. Local airport times.

2026-12-19 → 2026-12-27 · Axel-exclusive $518.00

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-27 05:05:00 → PHL 2026-12-27 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-27 05:05:00 → DEN 2026-12-27 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-27 10:15:00 → PHL 2026-12-27 15:51:00.

2026-12-19 → 2026-12-27 · Axel-exclusive $539.00

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-27 21:33:00 → PHL 2026-12-28 05:42:00; nonstop; 309 minutes. Local airport times.

2026-12-19 → 2026-12-29 · Axel-exclusive $499.50

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-29 05:05:00 → PHL 2026-12-29 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-29 05:05:00 → DEN 2026-12-29 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-29 10:15:00 → PHL 2026-12-29 15:51:00.

2026-12-19 → 2026-12-29 · Axel-exclusive $519.75

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-29 21:35:00 → PHL 2026-12-30 05:40:00; nonstop; 305 minutes. Local airport times.

2026-12-19 → 2026-12-30 · Axel-exclusive $499.50

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-30 05:05:00 → PHL 2026-12-30 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-30 05:05:00 → DEN 2026-12-30 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-30 10:15:00 → PHL 2026-12-30 15:51:00.

2026-12-19 → 2026-12-30 · Axel-exclusive $519.75

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2026-12-30 21:35:00 → PHL 2026-12-31 05:40:00; nonstop; 305 minutes. Local airport times.

2026-12-19 → 2026-12-31 · Axel-exclusive $499.50

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2026-12-31 05:05:00 → PHL 2026-12-31 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-31 05:05:00 → DEN 2026-12-31 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-31 10:15:00 → PHL 2026-12-31 15:51:00.

2026-12-19 → 2026-12-31 · Axel-exclusive $519.75

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS442: SEA 2026-12-31 08:32:00 → PHL 2026-12-31 16:45:00; nonstop; 313 minutes. Local airport times.

2026-12-19 → 2027-01-02 · Axel-exclusive $486.55

• United Airlines UA1811 / UA1660: PHL 2026-12-19 09:45:00 → SEA 2026-12-19 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2026-12-19 09:45:00 → ORD 2026-12-19 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2026-12-19 12:45:00 → SEA 2026-12-19 15:32:00.
• United Airlines UA1686 / UA225: SEA 2027-01-02 05:05:00 → PHL 2027-01-02 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2027-01-02 05:05:00 → DEN 2027-01-02 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2027-01-02 10:15:00 → PHL 2027-01-02 15:51:00.

2026-12-19 → 2027-01-02 · Axel-exclusive $506.28

• Alaska Airlines AS370: PHL 2026-12-19 07:02:00 → SEA 2026-12-19 10:29:00; nonstop; 387 minutes. Local airport times.
• Alaska Airlines AS371: SEA 2027-01-02 21:33:00 → PHL 2027-01-03 05:42:00; nonstop; 309 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 18, 2026 · Return options
• Dec 20, 2026 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Philadelphia (PHL) to Seattle (SEA) · Dec 19, 2026 · 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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