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Cheap flights from the United Kingdom to Washington from £266
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
3 Sep — 10 Sep1
Return
1 adult
Economy
Cheap flight deals from United Kingdom to Washington
Keep the following information in mind while searching for United Kingdom to Washington flight deals. Data was last updated 29 August 2025.
Find flight deals from United Kingdom to Washington
Cheapest flights from United Kingdom to WashingtonExplore the most affordable flight options available from United Kingdom to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Explore the most affordable flight options available from United Kingdom to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Thu 9/1011:40EDI - SEA
2 stops34h 20mMultiple Airlines
Sun 12/1016:20SEA - EDI
2 stops22h 50mMultiple Airlines
Deal found 29/8£424
Fri 17/1019:45EDI - SEA
2 stops50h 15mScandinavian Airlines
Sun 19/1016:20SEA - EDI
2 stops36h 10mScandinavian Airlines
Deal found 28/8£447
Fri 7/1111:30EDI - SEA
1 stop13h 30mIcelandair
Wed 12/1114:35SEA - EDI
1 stop11h 45mIcelandair
Deal found 28/8£454
Fri 7/1111:30EDI - SEA
1 stop13h 30mIcelandair
Mon 10/1114:35SEA - EDI
1 stop11h 45mIcelandair
Deal found 28/8£455
Fri 14/1114:30LHR - SEA
1 stop27h 01mAir Canada
Thu 18/1208:15SEA - LHR
1 stop14h 15mAir Canada
Deal found 28/8£471
Fri 19/910:55LGW - SEA
1 stop19h 35mMultiple Airlines
Wed 24/907:55SEA - LGW
1 stop19h 00mMultiple Airlines
Deal found 28/8£472
Sun 12/1007:25LHR - SEA
1 stop17h 34mUnited Airlines
Sun 19/1011:10SEA - LHR
2 stops17h 30mUnited Airlines
Deal found 28/8£472
Sat 4/1015:40LGW - SEA
1 stop34h 10mIcelandair
Fri 10/1019:00SEA - LGW
1 stop11h 40mIcelandair
Deal found 28/8£473
Thu 4/913:25LHR - SEA
Nonstop10h 05mVirgin Atlantic
Thu 18/910:15SEA - LHR
1 stop15h 45mVirgin Atlantic
Deal found 28/8£473
Mon 15/917:25LHR - SEA
Nonstop10h 25mDelta
Tue 30/920:25SEA - LHR
Nonstop9h 50mDelta
Deal found 27/8£474
Tue 16/915:05LGW - SEA
2 stops25h 07mAmerican Airlines
Wed 24/906:05SEA - LGW
2 stops18h 05mAmerican Airlines
Deal found 27/8£474
Thu 13/1118:15LCY - SEA
1 stop25h 55mLufthansa
Mon 17/1114:00SEA - LCY
1 stop18h 40mLufthansa
Deal found 28/8£474
Cheapflights Fare Finder
Customise your flight search to find flights from United Kingdom to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
Use the filters below to find and compare flights from the United Kingdom to Washington that are best for you.
Fly from
United Kingdom
Fly to
Washington
Route
Depart
Return
Price
EdinburghSeattle
EDI - SEA
EDISEA
Edinburgh Turnhouse
Thu 9/10
11:40-14:00
2 stops34h 20m
Seattle/Tacoma Intl
Sun 12/10
16:20-23:10
2 stops22h 50m
£424
EdinburghSeattle
EDI - SEA
EDISEA
Edinburgh Turnhouse
Fri 17/10
19:45-14:00
2 stops50h 15m
Seattle/Tacoma Intl
Sun 19/10
16:20-12:30
2 stops36h 10m
£447
EdinburghSeattle
EDI - SEA
EDISEA
Edinburgh Turnhouse
Fri 7/11
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Wed 12/11
14:35-10:20
1 stop11h 45m
£454
EdinburghSeattle
EDI - SEA
EDISEA
Edinburgh Turnhouse
Fri 7/11
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Mon 10/11
14:35-10:20
1 stop11h 45m
£455
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Sat 15/11
14:30-22:06
1 stop15h 36m
Seattle/Tacoma Intl
Thu 18/12
08:15-06:30
1 stop14h 15m
£471
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 14/11
14:30-09:31
1 stop27h 01m
Seattle/Tacoma Intl
Thu 18/12
08:15-06:30
1 stop14h 15m
£471
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Fri 19/9
10:55-22:30
1 stop19h 35m
Seattle/Tacoma Intl
Wed 24/9
07:55-10:55
1 stop19h 00m
£472
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 10/9
17:25-19:50
Nonstop10h 25m
Seattle/Tacoma Intl
Mon 15/9
20:25-14:15
Nonstop9h 50m
£473
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 3/12
12:35-23:38
1 stop19h 03m
Seattle/Tacoma Intl
Tue 9/12
09:00-12:05
2 stops19h 05m
£473
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Thu 8/1
12:20-14:50
Nonstop10h 30m
Seattle/Tacoma Intl
Thu 15/1
07:20-06:55
1 stop15h 35m
£473
Showing 1-10 of 60 results
Best time to book a flight from United Kingdom to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from the United Kingdom to Washington
What is the cheapest month to book a flight from United Kingdom to State of Washington?
Currently, January is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of £622). Flying from United Kingdom to State of Washington in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from GB to WA?
Find hourly flight availability from United Kingdom to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2025.
When flying from United Kingdom 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.
Weekly flight availability from United Kingdom to State of Washington
Explore weekly flight availability from United Kingdom to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 August 2025.
The most flights from GB0 to USWA are scheduled on a Wednesday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 29 August 2025.
Get a feel of what it's like to fly with KLM, Air France, andVirgin Atlantic from the United Kingdom to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.4
Boarding
7.8
Entertainment
7.1
Comfort
7.7
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Crew
8.4
Boarding
7.8
Entertainment
7.1
Comfort
7.7
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Crew
8.4
Boarding
7.8
Entertainment
7.1
Comfort
7.7
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Crew
8.4
Boarding
7.8
Entertainment
7.1
Comfort
7.7
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Crew
8.4
Boarding
7.8
Entertainment
7.1
Comfort
7.7
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Crew
8.4
Boarding
7.8
Entertainment
7.1
Comfort
7.7
Overall
7.8
Food
7.3
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Related info for your journey
Find useful and relevant information for your journey from United Kingdom to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for United Kingdom to Washington
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from United Kingdom to Washington
Discover the top 10 airlines that operate flights from United Kingdom to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from United Kingdom to Washington?
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Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Washington?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Washington.
Can Cheapflights find flights from United Kingdom to Washington with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from United Kingdom to Washington flexibly with Cheapflights today.
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