Seattle (SEA) to London (LHR), Dec 14, 2026: round trips from $620, one way from $390

Seattle (SEA) to London (LHR), Dec 14, 2026: round trips from $620, one way from $390 on Axel, checked Oct 29, 2026. Lowest published fares: $620 round trip, Axel-exclusive, FI, 1 stop, Dec 14–16, 2026; $390 one way, Axel-exclusive, FI, 1 stop, Dec 14, 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 London for these trips

Hotels: under a trip, hotels in London 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 London for these nights (Dec 14–16, 2026 · 2 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $203 total · 4★ Aparthotel Adagio London City East, $473 total · 5★ Royal Lancaster London, $793 total
• Hotels in London for these nights (Dec 14–17, 2026 · 3 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $324 total · 4★ Aparthotel Adagio London City East, $735 total · 5★ St Martins Lane London, a Morgans Originals hotel, $1,232 total
• Hotels in London for these nights (Dec 14–18, 2026 · 4 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $435 total · 4★ Aparthotel Adagio London City East, $932 total · 5★ St Martins Lane London, a Morgans Originals hotel, $1,605 total
• Hotels in London for these nights (Dec 14–19, 2026 · 5 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $569 total · 4★ Aparthotel Adagio London City East, $1,161 total · 5★ St Martins Lane London, a Morgans Originals hotel, $1,984 total
• Hotels in London for these nights (Dec 14–20, 2026 · 6 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $778 total · 4★ Aparthotel Adagio London City East, $1,540 total · 5★ Royal Lancaster London, $2,397 total
• Hotels in London for these nights (Dec 14–21, 2026 · 7 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $890 total · 4★ Aparthotel Adagio London City East, $1,733 total · 5★ Royal Lancaster London, $2,769 total
• Hotels in London for these nights (Dec 14–22, 2026 · 8 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,006 total · 4★ Aparthotel Adagio London City East, $2,046 total · 5★ Royal Lancaster London, $3,141 total
• Hotels in London for these nights (Dec 14–23, 2026 · 9 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,145 total · 4★ Aparthotel Adagio London City East, $2,261 total · 5★ St Martins Lane London, a Morgans Originals hotel, $3,542 total
• Hotels in London for these nights (Dec 14–24, 2026 · 10 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,254 total · 4★ Aparthotel Adagio London City East, $2,447 total · 5★ St Martins Lane London, a Morgans Originals hotel, $3,880 total
• Hotels in London for these nights (Dec 14–25, 2026 · 11 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,368 total · 4★ Aparthotel Adagio London City East, $2,632 total · 5★ St Martins Lane London, a Morgans Originals hotel, $4,188 total
• Hotels in London for these nights (Dec 14–26, 2026 · 12 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,489 total · 4★ Aparthotel Adagio London City East, $2,808 total · 5★ St Martins Lane London, a Morgans Originals hotel, $4,488 total
• Hotels in London for these nights (Dec 14–27, 2026 · 13 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,631 total · 4★ Aparthotel Adagio London City East, $3,052 total · 5★ St Martins Lane London, a Morgans Originals hotel, $4,970 total
• Hotels in London for these nights (Dec 14–28, 2026 · 14 nights · 2 adults, 1 room): 3★ Point A Kensington Olympia, $1,774 total · 4★ Aparthotel Adagio London City East, $3,268 total · 5★ Vintry & Mercer, $5,344 total

All hotels in London

Route overview: Seattle to London (LHR) flight deals

2026-12-14 · one way · Axel-exclusive $390.00

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.

2026-12-14 · one way · Axel-exclusive $510.00

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.

2026-12-14 → 2026-12-16 · Axel-exclusive $620.00

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-16 12:15:00 → SEA 2026-12-16 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-16 12:15:00 → KEF 2026-12-16 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-16 17:00:00 → SEA 2026-12-16 17:00:00.

2026-12-14 → 2026-12-16 · Axel-exclusive $790.00

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-16 14:45:00 → SEA 2026-12-16 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-17 · Axel-exclusive $620.00

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-17 12:15:00 → SEA 2026-12-17 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-17 12:15:00 → KEF 2026-12-17 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-17 17:00:00 → SEA 2026-12-17 17:00:00.

2026-12-14 → 2026-12-17 · Axel-exclusive $790.00

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-17 14:45:00 → SEA 2026-12-17 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-18 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-18 12:15:00 → SEA 2026-12-18 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-18 12:15:00 → KEF 2026-12-18 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-18 17:00:00 → SEA 2026-12-18 17:00:00.

2026-12-14 → 2026-12-18 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-18 14:45:00 → SEA 2026-12-18 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-19 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-19 12:15:00 → SEA 2026-12-19 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-19 12:15:00 → KEF 2026-12-19 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-19 17:00:00 → SEA 2026-12-19 17:00:00.

2026-12-14 → 2026-12-19 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-19 14:45:00 → SEA 2026-12-19 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-20 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-20 12:15:00 → SEA 2026-12-20 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-20 12:15:00 → KEF 2026-12-20 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-20 17:00:00 → SEA 2026-12-20 17:00:00.

2026-12-14 → 2026-12-20 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-20 14:45:00 → SEA 2026-12-20 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-22 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-22 12:15:00 → SEA 2026-12-22 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-22 12:15:00 → KEF 2026-12-22 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-22 17:00:00 → SEA 2026-12-22 17:00:00.

2026-12-14 → 2026-12-22 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-22 14:45:00 → SEA 2026-12-22 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-23 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-23 12:15:00 → SEA 2026-12-23 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-23 12:15:00 → KEF 2026-12-23 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-23 17:00:00 → SEA 2026-12-23 17:00:00.

2026-12-14 → 2026-12-23 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-23 14:45:00 → SEA 2026-12-23 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-24 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-24 12:15:00 → SEA 2026-12-24 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-24 12:15:00 → KEF 2026-12-24 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-24 17:00:00 → SEA 2026-12-24 17:00:00.

2026-12-14 → 2026-12-24 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-24 14:45:00 → SEA 2026-12-24 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-25 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-25 12:15:00 → SEA 2026-12-25 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-25 12:15:00 → KEF 2026-12-25 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-25 17:00:00 → SEA 2026-12-25 17:00:00.

2026-12-14 → 2026-12-25 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-25 14:45:00 → SEA 2026-12-25 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-26 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-26 12:15:00 → SEA 2026-12-26 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-26 12:15:00 → KEF 2026-12-26 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-26 17:00:00 → SEA 2026-12-26 17:00:00.

2026-12-14 → 2026-12-26 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-26 14:45:00 → SEA 2026-12-26 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-14 → 2026-12-28 · Axel-exclusive $728.50

• FI FI680 / FI450: SEA 2026-12-14 14:35:00 → LHR 2026-12-15 10:50:00; 1 stop(s) via KEF; 735 minutes. Local airport times.
  • FI680: SEA 2026-12-14 14:35:00 → KEF 2026-12-15 06:15:00; layover at KEF: 80 minutes.
  • FI450: KEF 2026-12-15 07:35:00 → LHR 2026-12-15 10:50:00.
• FI FI451 / FI681: LHR 2026-12-28 12:15:00 → SEA 2026-12-28 17:00:00; 1 stop(s) via KEF; 765 minutes. Local airport times.
  • FI451: LHR 2026-12-28 12:15:00 → KEF 2026-12-28 15:30:00; layover at KEF: 90 minutes.
  • FI681: KEF 2026-12-28 17:00:00 → SEA 2026-12-28 17:00:00.

2026-12-14 → 2026-12-28 · Axel-exclusive $928.25

• Alaska Airlines AS100: SEA 2026-12-14 18:45:00 → LHR 2026-12-15 12:20:00; nonstop; 575 minutes. Local airport times.
• Alaska Airlines AS101: LHR 2026-12-28 14:45:00 → SEA 2026-12-28 17:00:00; nonstop; 615 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 13, 2026 · Return options
• Dec 15, 2026 · Return options
• Hotels in London with Axel

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• This page: Seattle (SEA) to London (LHR) · Dec 14, 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 London 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.
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