Cheap flights from Washington to London from £209
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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Washington to London
Keep the following information in mind while searching for Washington to London flight deals. Data was last updated 29 March 2025.
Round-trip from | £455 |
---|---|
One-way from | £209 |
Popular in | June |
Cheapest in | October |
Average price | £531 |
Good round-trip deal | £577 or less |
Good one-way deal | £323 or less |
Find flight deals from Washington to London
Cheapest flights from Washington to LondonExplore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 March 2025.
Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 March 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Washington to London 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 March 2025.
Use the filters below to find and compare flights from Washington to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Thu 1/5
19:00-20:20
1 stop17h 20m
London Heathrow
Mon 12/5
21:25-20:40
1 stop31h 15m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Mon 19/5
19:00-14:35
1 stop11h 35m
London Gatwick
Tue 3/6
20:55-20:28
2 stops31h 33m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Wed 7/5
19:00-14:40
1 stop11h 40m
London Gatwick
Fri 16/5
15:40-20:40
1 stop13h 00m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Mon 26/5
16:00-17:00
2 stops17h 00m
London Heathrow
Tue 10/6
21:05-13:50
2 stops24h 45m
PortlandLondon
PDX - LGW
PDXLGW
Portland
Wed 7/5
15:20-11:45
1 stop12h 25m
London Gatwick
Mon 12/5
15:40-17:55
1 stop34h 15m
PortlandLondon
PDX - LHR
PDXLHR
Portland
Wed 30/4
15:20-20:20
1 stop21h 00m
London Heathrow
Wed 7/5
13:05-17:55
1 stop12h 50m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 7/5
15:45-21:35
2 stops21h 50m
London Heathrow
Sun 11/5
06:50-17:50
2 stops19h 00m
SeattleLondon
SEA - STN
SEASTN
Seattle/Tacoma Intl
Wed 7/5
15:45-22:15
2 stops22h 30m
London Stansted
Wed 14/5
06:10-17:50
2 stops19h 40m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 29/4
13:30-06:50
Nonstop9h 20m
London Heathrow
Wed 7/5
09:30-16:00
1 stop14h 30m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 30/4
20:20-13:40
Nonstop9h 20m
London Heathrow
Wed 7/5
10:20-16:00
1 stop13h 40m
Best time to book a flight from Washington to London
Have a flexible travel schedule? Discover the best time to fly to London from Washington with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington to London
What is the cheapest month to book a flight from State of Washington to London?
Currently, January is the cheapest month in which you can book a flight from State of Washington to London (average of £112). Flying from State of Washington to London in August is currently the most expensive (average of £164). 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 WA to LON?
Find hourly flight availability from Washington to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 March 2025.
When flying from State of Washington to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in London by month
Plan your trip to London by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.
Temperature in London by month
Plan your trip to London by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. 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 London. Reviews last updated 29 March 2025.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and KLM from Washington to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Overall
Crew
Food
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Overall
Crew
Food
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Overall
Crew
Food
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Overall
Crew
Food
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Overall
Crew
Food
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Overall
Crew
Food
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Washington to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Washington to London
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Washington to London
Discover the top 4 airlines that operate flights from Washington to London. 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 March 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Washington to London?
When you search for this flight from Washington to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Washington to London?
Millions of users choose and trust Cheapflights to book the best flight deals from Washington to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Washington to London with no change fees?
Yes! Cheapflights helps users easily find flights from Washington to London with no change fees.
Can Cheapflights notify me if prices for flights from Washington to London become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington today and book when prices fit your budget.