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 £554 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £682.
February can be a great time to fly to State of Washington from London Heathrow Airport with a flight ticket averaging about £528. Cheapflights users have found deals in the month of February for as cheap as £343. 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
£457 - £493
Route
Depart
Return
Price
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Wed 17/4
1 stop13h 55m
Seattle/Tacoma Intl
Wed 24/4
1 stop16h 10m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Mon 15/4
2 stops19h 37m
Seattle/Tacoma Intl
Mon 22/4
2 stops14h 40m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Mon 15/4
Nonstop9h 55m
Seattle/Tacoma Intl
Mon 22/4
1 stop14h 32m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Wed 17/4
1 stop13h 55m
Seattle/Tacoma Intl
Wed 24/4
1 stop14h 55m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 16/4
2 stops31h 15m
Seattle/Tacoma Intl
Tue 23/4
1 stop14h 39m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Mon 8/4
2 stops19h 55m
Seattle/Tacoma Intl
Mon 22/4
2 stops17h 02m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Mon 8/4
1 stop12h 55m
Seattle/Tacoma Intl
Mon 22/4
1 stop12h 25m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 30/4
1 stop12h 35m
Seattle/Tacoma Intl
Wed 15/5
1 stop17h 25m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 16/4
2 stops32h 58m
Seattle/Tacoma Intl
Mon 22/4
1 stop23h 01m
No data available for this route at this time. Please check back soon.
Entertainment
Overall
Comfort
Food
Boarding
Crew
Reviews
It was a good experience other than a short delay.
Entertainment
Overall
Comfort
Food
Boarding
Crew
Reviews
It was a good experience other than a short delay.
Entertainment
Overall
Comfort
Food
Boarding
Crew
Reviews
It was a good experience other than a short delay.
Entertainment
Overall
Comfort
Food
Boarding
Crew
Reviews
It was a good experience other than a short delay.
Entertainment
Overall
Comfort
Food
Boarding
Crew
Reviews
It was a good experience other than a short delay.
Entertainment
Overall
Comfort
Food
Boarding
Crew
Reviews
It was a good experience other than a short delay.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
47%of flight departures | Morning6 am to noon |
52%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
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Yes, you can often find last-minute deals on Heathrow to Washington flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
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Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.