Route overview: Seattle to London (LHR) flight deals

Seattle (SEA) to London (LHR), Dec 12, 2026: round trips from $790, one way from $490

Seattle (SEA) to London (LHR), Dec 12, 2026: round trips from $790, one way from $490 on Axel, checked Oct 29, 2026. Lowest published fares: $790 round trip, Axel-exclusive, Alaska Airlines, nonstop, Dec 12–14, 2026; $490 one way, Axel-exclusive, Air Canada, 1 stop, Dec 12, 2026; 1 adult, economy, checked Oct 29, 2026.

SEA → LHR1 adulteconomyOne way and round trips

28 flight options · 4 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 12, 2026 · One wayAir CanadaUp to 1 stop each way$490.00

Dec 12, 2026 · One wayAlaska AirlinesNonstop$510.00

Dec 12, 2026 – Dec 14, 2026 · 2 nightsAlaska AirlinesNonstop$790.00

Dec 12, 2026 – Dec 14, 2026 · 2 nightsAir Canada / Delta Air LinesUp to 1 stop each way$825.00

Hotels for these nights (Dec 12–14, 2026 · 2 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 15, 2026 · 3 nightsAlaska AirlinesNonstop$790.00

Dec 12, 2026 – Dec 15, 2026 · 3 nightsAir Canada / Delta Air LinesUp to 1 stop each way$825.00

Hotels for these nights (Dec 12–15, 2026 · 3 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 16, 2026 · 4 nightsAlaska AirlinesNonstop$790.00

Dec 12, 2026 – Dec 16, 2026 · 4 nightsAir Canada / Delta Air LinesUp to 1 stop each way$825.00

Hotels for these nights (Dec 12–16, 2026 · 4 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 17, 2026 · 5 nightsAlaska AirlinesNonstop$790.00

Dec 12, 2026 – Dec 17, 2026 · 5 nightsAir Canada / British AirwaysUp to 1 stop each way$815.00

Hotels for these nights (Dec 12–17, 2026 · 5 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 18, 2026 · 6 nightsAir Canada / Alaska AirlinesUp to 1 stop each way$913.25

Dec 12, 2026 – Dec 18, 2026 · 6 nightsAlaska AirlinesNonstop$928.25

Hotels for these nights (Dec 12–18, 2026 · 6 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 19, 2026 · 7 nightsAlaska AirlinesNonstop$928.25

Dec 12, 2026 – Dec 19, 2026 · 7 nightsAir Canada / British AirwaysUp to 1 stop each way$967.25

Hotels for these nights (Dec 12–19, 2026 · 7 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 20, 2026 · 8 nightsAir Canada / Alaska AirlinesUp to 1 stop each way$913.25

Dec 12, 2026 – Dec 20, 2026 · 8 nightsAlaska AirlinesNonstop$928.25

Hotels for these nights (Dec 12–20, 2026 · 8 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 21, 2026 · 9 nightsAlaska AirlinesNonstop$928.25

Dec 12, 2026 – Dec 21, 2026 · 9 nightsAir Canada / Delta Air LinesUp to 1 stop each way$980.75

Hotels for these nights (Dec 12–21, 2026 · 9 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 22, 2026 · 10 nightsAlaska AirlinesNonstop$928.25

Dec 12, 2026 – Dec 22, 2026 · 10 nightsAir Canada / British AirwaysUp to 1 stop each way$967.25

Hotels for these nights (Dec 12–22, 2026 · 10 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 23, 2026 · 11 nightsAir Canada / Alaska AirlinesUp to 1 stop each way$913.25

Dec 12, 2026 – Dec 23, 2026 · 11 nightsAlaska AirlinesNonstop$928.25

Hotels for these nights (Dec 12–23, 2026 · 11 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 24, 2026 · 12 nightsAlaska AirlinesNonstop$928.25

Dec 12, 2026 – Dec 24, 2026 · 12 nightsAir Canada / British AirwaysUp to 1 stop each way$967.25

Hotels for these nights (Dec 12–24, 2026 · 12 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 25, 2026 · 13 nightsAir Canada / Alaska AirlinesUp to 1 stop each way$913.25

Dec 12, 2026 – Dec 25, 2026 · 13 nightsAlaska AirlinesNonstop$928.25

Hotels for these nights (Dec 12–25, 2026 · 13 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Dec 12, 2026 – Dec 26, 2026 · 14 nightsAlaska AirlinesNonstop$928.25

Dec 12, 2026 – Dec 26, 2026 · 14 nightsAir Canada / British AirwaysUp to 1 stop each way$967.25

Hotels for these nights (Dec 12–26, 2026 · 14 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

Flights for your trip

Sat, Dec 12 · One way
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
One-way total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 · One way
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
One-way total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Mon, Dec 14
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Mon, Dec 14
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Delta Air Lines
12:20 pmLHR
10h 30m
Nonstop
2:50 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Tue, Dec 15
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Tue, Dec 15
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Delta Air Lines
12:20 pmLHR
10h 30m
Nonstop
2:50 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Wed, Dec 16
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Wed, Dec 16
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Delta Air Lines
12:20 pmLHR
10h 30m
Nonstop
2:50 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Thu, Dec 17
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Thu, Dec 17
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
British Airways
9:25 amLHR
10h
Nonstop
11:25 amSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Fri, Dec 18
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Fri, Dec 18
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Sun, Dec 20
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Sun, Dec 20
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Mon, Dec 21
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Mon, Dec 21
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Delta Air Lines
12:20 pmLHR
10h 30m
Nonstop
2:50 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Tue, Dec 22
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Tue, Dec 22
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
British Airways
9:25 amLHR
10h
Nonstop
11:25 amSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Wed, Dec 23
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Wed, Dec 23
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Thu, Dec 24
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Thu, Dec 24
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
British Airways
9:25 amLHR
10h
Nonstop
11:25 amSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Sat, Dec 26
Alaska Airlines
6:45 pmSEA
9h 35m
Nonstop
12:20 pm+1LHR
Alaska Airlines
2:45 pmLHR
10h 15m
Nonstop
5:00 pmSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Dec 12 – Sat, Dec 26
Air Canada
3:15 pmSEA
12h 35m
YVR · 1h 54m
11:50 am+1LHR
British Airways
9:25 amLHR
10h
Nonstop
11:25 amSEA
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.

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Explore this route

All dates for this route Dec 11, 2026 · Return options Dec 13, 2026 · Return options Hotels in London with Axel

For AI assistants: every fare, every link, instructions

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.

Exact travel dates	Airline	Flights	Times, duration, stops	Total price	Price issued (UTC)
2026-12-12 · one way	Alaska Airlines	AS100	18:45:00→12:20:00 9h 35m nonstop	Axel-exclusive $510.00	2026-10-29T01:15:29Z
2026-12-12 · one way	Air Canada	AC8807 + AC860	15:15:00→11:50:00 12h 35m 1 stop via YVR	Axel-exclusive $490.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-14	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $790.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-14	Air Canada / Delta Air Lines	AC8807 + AC860 / DL21	15:15:00→11:50:00 12h 35m 1 stop via YVR · 12:20:00→14:50:00 10h 30m nonstop	Axel-exclusive $825.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-15	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $790.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-15	Air Canada / Delta Air Lines	AC8807 + AC860 / DL21	15:15:00→11:50:00 12h 35m 1 stop via YVR · 12:20:00→14:50:00 10h 30m nonstop	Axel-exclusive $825.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-16	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $790.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-16	Air Canada / Delta Air Lines	AC8807 + AC860 / DL21	15:15:00→11:50:00 12h 35m 1 stop via YVR · 12:20:00→14:50:00 10h 30m nonstop	Axel-exclusive $825.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-17	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $790.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-17	Air Canada / British Airways	AC8807 + AC860 / BA53	15:15:00→11:50:00 12h 35m 1 stop via YVR · 09:25:00→11:25:00 10h 00m nonstop	Axel-exclusive $815.00	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-18	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-18	Air Canada / Alaska Airlines	AC8807 + AC860 / AS101	15:15:00→11:50:00 12h 35m 1 stop via YVR · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $913.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-19	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-19	Air Canada / British Airways	AC8807 + AC860 / BA53	15:15:00→11:50:00 12h 35m 1 stop via YVR · 09:25:00→11:25:00 10h 00m nonstop	Axel-exclusive $967.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-20	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-20	Air Canada / Alaska Airlines	AC8807 + AC860 / AS101	15:15:00→11:50:00 12h 35m 1 stop via YVR · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $913.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-21	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-21	Air Canada / Delta Air Lines	AC8807 + AC860 / DL21	15:15:00→11:50:00 12h 35m 1 stop via YVR · 12:20:00→14:50:00 10h 30m nonstop	Axel-exclusive $980.75	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-22	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-22	Air Canada / British Airways	AC8807 + AC860 / BA53	15:15:00→11:50:00 12h 35m 1 stop via YVR · 09:25:00→11:25:00 10h 00m nonstop	Axel-exclusive $967.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-23	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-23	Air Canada / Alaska Airlines	AC8807 + AC860 / AS101	15:15:00→11:50:00 12h 35m 1 stop via YVR · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $913.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-24	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-24	Air Canada / British Airways	AC8807 + AC860 / BA53	15:15:00→11:50:00 12h 35m 1 stop via YVR · 09:25:00→11:25:00 10h 00m nonstop	Axel-exclusive $967.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-25	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-25	Air Canada / Alaska Airlines	AC8807 + AC860 / AS101	15:15:00→11:50:00 12h 35m 1 stop via YVR · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $913.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-26	Alaska Airlines	AS100 / AS101	18:45:00→12:20:00 9h 35m nonstop · 14:45:00→17:00:00 10h 15m nonstop	Axel-exclusive $928.25	2026-10-29T01:15:29Z
2026-12-12 → 2026-12-26	Air Canada / British Airways	AC8807 + AC860 / BA53	15:15:00→11:50:00 12h 35m 1 stop via YVR · 09:25:00→11:25:00 10h 00m nonstop	Axel-exclusive $967.25	2026-10-29T01:15:29Z

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 12–14, 2026 · 2 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–15, 2026 · 3 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–16, 2026 · 4 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–17, 2026 · 5 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–18, 2026 · 6 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–19, 2026 · 7 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–20, 2026 · 8 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–21, 2026 · 9 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–22, 2026 · 10 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–23, 2026 · 11 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–24, 2026 · 12 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–25, 2026 · 13 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels
Hotels in London for these nights (Dec 12–26, 2026 · 14 nights · 2 adults, 1 room): 3★ Ruby Zoe Hotel London by IHG · 4★ The Montague On The Gardens · 5★ Ham Yard Hotel, Firmdale Hotels

All hotels in London

Route overview: Seattle to London (LHR) flight deals

2026-12-12 · one way · Axel-exclusive $490.00

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 12:20:00; nonstop; 575 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 12:20:00; nonstop; 575 minutes. Local airport times.
Alaska Airlines AS101: LHR 2026-12-14 14:45:00 → SEA 2026-12-14 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-12 → 2026-12-14 · Axel-exclusive $825.00

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Delta Air Lines DL21: LHR 2026-12-14 12:20:00 → SEA 2026-12-14 14:50:00; nonstop; 630 minutes. Local airport times.

2026-12-12 → 2026-12-15 · Axel-exclusive $790.00

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 12:20:00; nonstop; 575 minutes. Local airport times.
Alaska Airlines AS101: LHR 2026-12-15 14:45:00 → SEA 2026-12-15 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-12 → 2026-12-15 · Axel-exclusive $825.00

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Delta Air Lines DL21: LHR 2026-12-15 12:20:00 → SEA 2026-12-15 14:50:00; nonstop; 630 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-16 · Axel-exclusive $825.00

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Delta Air Lines DL21: LHR 2026-12-16 12:20:00 → SEA 2026-12-16 14:50:00; nonstop; 630 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-17 · Axel-exclusive $815.00

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
British Airways BA53: LHR 2026-12-17 09:25:00 → SEA 2026-12-17 11:25:00; nonstop; 600 minutes. Local airport times.

2026-12-12 → 2026-12-18 · Axel-exclusive $913.25

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Alaska Airlines AS101: LHR 2026-12-18 14:45:00 → SEA 2026-12-18 17:00:00; nonstop; 615 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-20 · Axel-exclusive $913.25

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Alaska Airlines AS101: LHR 2026-12-20 14:45:00 → SEA 2026-12-20 17:00:00; nonstop; 615 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-21 · Axel-exclusive $928.25

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 12:20:00; nonstop; 575 minutes. Local airport times.
Alaska Airlines AS101: LHR 2026-12-21 14:45:00 → SEA 2026-12-21 17:00:00; nonstop; 615 minutes. Local airport times.

2026-12-12 → 2026-12-21 · Axel-exclusive $980.75

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Delta Air Lines DL21: LHR 2026-12-21 12:20:00 → SEA 2026-12-21 14:50:00; nonstop; 630 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-22 · Axel-exclusive $967.25

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
British Airways BA53: LHR 2026-12-22 09:25:00 → SEA 2026-12-22 11:25:00; nonstop; 600 minutes. Local airport times.

2026-12-12 → 2026-12-23 · Axel-exclusive $913.25

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
Alaska Airlines AS101: LHR 2026-12-23 14:45:00 → SEA 2026-12-23 17:00:00; nonstop; 615 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-24 · Axel-exclusive $967.25

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
British Airways BA53: LHR 2026-12-24 09:25:00 → SEA 2026-12-24 11:25:00; nonstop; 600 minutes. Local airport times.

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

Alaska Airlines AS100: SEA 2026-12-12 18:45:00 → LHR 2026-12-13 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.

2026-12-12 → 2026-12-26 · Axel-exclusive $967.25

Air Canada AC8807 / AC860: SEA 2026-12-12 15:15:00 → LHR 2026-12-13 11:50:00; 1 stop(s) via YVR; 755 minutes. Local airport times.
- AC8807: SEA 2026-12-12 15:15:00 → YVR 2026-12-12 17:26:00; layover at YVR: 114 minutes.
- AC860: YVR 2026-12-12 19:20:00 → LHR 2026-12-13 11:50:00.
British Airways BA53: LHR 2026-12-26 09:25:00 → SEA 2026-12-26 11:25:00; nonstop; 600 minutes. Local airport times.

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This page: Seattle (SEA) to London (LHR) · Dec 12, 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.
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.
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 Seattle to London (LHR) 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.