Direct flights from Seattle to London

Did you mean Flights from London to Seattle?

Seattle

United States

SEA

Seattle Tacoma International Airport

London

United Kingdom

LHR

London Heathrow Airport

Route: Nonstop service available
Distance: 4,786 miles
Marketing airlines: 12 airlines
Aircraft: 7 aircraft types
Dates: Oct 19, 2026 – Oct 13, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 15,000 points + $319.00 for SEA → LHR, Economy, on 2026-11-09, booked with Virgin Atlantic. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-10-23 – 2026-11-21.

SEA → LHREconomy
DL20
15,000 points+ $319.00
Departure
2026-11-09
Seats seen
1
Book with
Virgin Atlantic
Observed (UTC)
2026-10-22 23:23
SEA → LHREconomy
DL20
15,000 points+ $319.00
Departure
2026-11-09
Seats seen
3
Book with
Virgin Atlantic
Observed (UTC)
2026-10-22 23:30
SEA → LHREconomy
DL20
15,000 points+ $319.00
Departure
2026-11-16
Seats seen
1
Book with
Virgin Atlantic
Observed (UTC)
2026-10-22 23:58
SEA → LHREconomy
BA48
22,500 points+ $238.00
Departure
2026-11-02
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-22 20:47
SEA → LHREconomy
BA52
22,500 points+ $238.00
Departure
2026-11-03
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-22 23:42
SEA → LHREconomy
BA48
22,500 points+ $238.00
Departure
2026-11-04
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-23 01:29
SEA → LHREconomy
AS100
22,500 points+ $5.00
Departure
2026-11-08
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-22 23:09
SEA → LHREconomy
BA48
22,500 points+ $238.00
Departure
2026-11-09
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-22 23:30
SEA → LHREconomy
AS100
22,500 points+ $5.00
Departure
2026-11-12
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-23 00:02
SEA → LHREconomy
BA52
22,500 points+ $238.00
Departure
2026-11-12
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-23 00:02
SEA → LHREconomy
BA48
22,500 points+ $238.00
Departure
2026-11-14
Seats seen
3
Book with
American Airlines
Observed (UTC)
2026-10-21 22:15
SEA → LHREconomy
BA48
22,500 points+ $238.00
Departure
2026-11-21
Seats seen
4
Book with
American Airlines
Observed (UTC)
2026-10-21 20:24

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Seattle to London route overview

Seattle Tacoma International Airport (SEA) serves Seattle; London Heathrow Airport (LHR) serves London.

The airports are 4,786 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from SEA to LHR.

Marketing airlines listed in the current schedule, including codeshare sellers, are American Airlines (AA), Air France (AF), Alaska Airlines (AS), Finnair (AY), British Airways (BA), Delta Air Lines (DL), Aer Lingus (EI), Iberia (IB), KLM (KL), Scandinavian Airlines (SK), Saudia (SV) and Virgin Atlantic (VS). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 13, 2027.

Marketing airlines on the Seattle to London route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

American Airlines (AA)Codeshare only
Air France (AF)Codeshare only
Alaska Airlines (AS)Codeshare only
Finnair (AY)Codeshare only
Aer Lingus (EI)Codeshare only
Iberia (IB)Codeshare only
KLM (KL)Codeshare only
Scandinavian Airlines (SK)Codeshare only
Saudia (SV)Codeshare only

Airline alliance affiliations represented: Oneworld, SkyTeam

Aircraft flying from SEA to LHR

Frequently asked questions

Which airports serve the Seattle to London route?

Seattle Tacoma International Airport (SEA) is the origin airport and London Heathrow Airport (LHR) is the destination airport.

How far is London from Seattle?

SEA and LHR are approximately 4,786 miles apart by great-circle distance.

Are there direct flights from SEA to LHR?

Yes. Roame's current schedule feed shows nonstop service from SEA to LHR.

Which airlines market flights from SEA to LHR?

Which aircraft fly from SEA to LHR?

Aircraft listed in the current schedule include Airbus A330-200 (332), Airbus A330-900 (339), 777, Boeing 777-300ER (77W), Boeing 787-10 (781), Boeing 787-8 (788) and Boeing 787-9 (789).