To save on the cost of your flight from London Heathrow Airport to State of Washington, book at least 49 days before your planned departure. Booking around this time can save you about 24% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £559 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £687.
February can be a great time to fly to State of Washington from London Heathrow Airport with a flight ticket averaging about £532. Cheapflights users have found deals in the month of February for as cheap as £346. The most expensive prices can be found in the month of July.
When flying from London Heathrow Airport to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
£455 - £513
Route
Depart
Return
Price
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Mon 16/9
2 stops20h 50m
Seattle/Tacoma Intl
Mon 23/9
1 stop18h 20m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Mon 16/9
Nonstop9h 55m
Seattle/Tacoma Intl
Mon 23/9
1 stop12h 52m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
1 stop31h 10m
Seattle/Tacoma Intl
Mon 27/5
1 stop17h 25m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
2 stops21h 28m
Seattle/Tacoma Intl
Tue 21/5
1 stop15h 20m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
1 stop21h 28m
Seattle/Tacoma Intl
Sun 19/5
1 stop23h 25m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
1 stop14h 45m
Seattle/Tacoma Intl
Tue 21/5
1 stop12h 30m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
Nonstop10h 30m
Seattle/Tacoma Intl
Mon 20/5
1 stop22h 35m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
Nonstop9h 45m
Seattle/Tacoma Intl
Sun 19/5
Nonstop9h 20m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Wed 15/5
Nonstop9h 45m
Seattle/Tacoma Intl
Tue 21/5
1 stop21h 10m
No data available for this route at this time. Please check back soon.
Entertainment
Comfort
Overall
Food
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Comfort
Overall
Food
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Comfort
Overall
Food
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Comfort
Overall
Food
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Comfort
Overall
Food
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Comfort
Overall
Food
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
59%of flight departures | Morning6 am to noon |
40%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington from Heathrow today with Cheapflights!
Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Washington for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Washington flexibly with Cheapflights today.
Not ready to book yet? You can track prices for flights from Heathrow to Washington on Cheapflights with our Price Alert feature and get notified when better prices are available.