Did you mean Flights from London to Seattle?
Seattle
United StatesSEA
Seattle Tacoma International Airport
London
United KingdomLHR
London Heathrow Airport
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 Sep 21, 2026 – Sep 15, 2027.
These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.
Airline alliance affiliations represented: Oneworld, SkyTeam
Seattle Tacoma International Airport (SEA) is the origin airport and London Heathrow Airport (LHR) is the destination airport.
SEA and LHR are approximately 4,786 miles apart by great-circle distance.
Yes. 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.
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).
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.
Departure window: through .
| Route / flight | Departure | Cabin | Book with | Points | Fees (USD) | Seats seen | Observed (UTC) |
|---|---|---|---|---|---|---|---|
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 4 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 1 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 2 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 3 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 2 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 3 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 2 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 1 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 2 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 1 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 2 | ||
| SEA → LHR DL20 | Economy | Virgin Atlantic | 15,000 | $319.00 | 3 |