$130+ Cheap flights from Washington to London, ON (YXU)
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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YXU
May 5 — May 121
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 30, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $199 (Flightnetwork) |
One-way from | $130 (Gotogate) |
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 April 30, 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 April 30, 2025.
This Flightnetwork deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/122:55 pmSEA - YXU
3 stops15h 23mAir Canada
Thu 6/199:55 amYXU - SEA
2 stops13h 46mAir Canada
Deal found 4/28![Air Canada logo]()
$199
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/127:05 amSEA - YXU
1 stop19h 09mMultiple Airlines
Thu 6/196:15 amYXU - SEA
1 stop7h 36mMultiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$242
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3111:50 pmSEA - YXU
2 stops18h 38mUnited Airlines
Sat 6/79:55 amYXU - SEA
2 stops15h 25mUnited Airlines
Deal found 4/28![United Airlines logo]()
$290
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/257:05 amSEA - YXU
1 stop19h 09mWestJet
Sun 6/298:00 pmYXU - SEA
1 stop19h 58mWestJet
Deal found 4/29![WestJet logo]()
$327
Cheapflights Fare Finder
Customize 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 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from Washington to London that are best for you.
Fly from
Washington
Fly to
London
Route
Depart
Return
Price
SeattleLondon
SEA - YXU
SEAYXU
Seattle/Tacoma Intl
Thu 6/12
2:55 pm-9:18 am
3 stops15h 23m
London
Thu 6/19
9:55 am-8:41 pm
2 stops13h 46m
$199
SeattleLondon
SEA - YXU
SEAYXU
Seattle/Tacoma Intl
Thu 6/12
7:05 am-5:14 am
1 stop19h 09m
London
Thu 6/19
6:15 am-10:51 am
1 stop7h 36m
$242
SeattleLondon
SEA - YXU
SEAYXU
Seattle/Tacoma Intl
Sat 5/31
11:50 pm-9:28 pm
2 stops18h 38m
London
Sat 6/7
9:55 am-10:20 pm
2 stops15h 25m
$290
SeattleLondon
SEA - YXU
SEAYXU
Seattle/Tacoma Intl
Wed 6/25
7:05 am-5:14 am
1 stop19h 09m
London
Sun 6/29
8:00 pm-12:58 pm
1 stop19h 58m
$327
SeattleLondon
SEA - YXU
SEAYXU
Seattle/Tacoma Intl
Thu 6/12
7:05 am-5:14 am
1 stop19h 09m
$130
SeattleLondon
SEA - YXU
SEAYXU
Seattle/Tacoma Intl
Thu 6/12
5:00 am-9:18 am
2 stops25h 18m
$146
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.
Estimated round-trip 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 Washington to London
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, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.
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, Ontario, 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 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).
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 April 30, 2025.
Entertainment
7.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Entertainment
7.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Entertainment
7.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Entertainment
7.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
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.
Traveling to a place near Washington?
Book flights to Washington if you plan to visit one of these locationsGrand Bend
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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 airline flying from Washington to London
Discover the top airline 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 2,558,603 searches. Data last updated April 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$205 | Average$399 | FlexibilityNo cancel fee | On-time67% |