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Cheap flights from London, ON to Washington from C$ 169

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SEA
20 apr — 27 apr1
1 adult

Cheap flight deals from London to Washington

Keep the following information in mind while searching for London to Washington flight deals. Data was last updated 15 aprile 2025.

Round-trip from

C$ 252

One-way from

C$ 169

Popular in

April

Cheapest in

May

Average price

C$ 1,523
WestJet
  • WestJet
  • 15/8-22/8
  • 2 total stops
  • 34h 07m total
  • London to Washington
Search Deals
Air Canada
  • Air Canada
  • 1/5
  • 1 total stop
  • 7h 30m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (C$ 383 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease (C$ 141 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from London to Washington

Cheapest flights from London to Washington
Explore the most affordable flight options available from London to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 aprile 2025.

ven 15/88:00 p.m.YXU - SEA
1 stop27h 28mWestJet
ven 22/87:35 p.m.SEA - YXU
1 stop6h 39mWestJet
Deal found 15/4C$ 252
ven 15/86:15 a.m.YXU - SEA
1 stop7h 55mUnited Airlines
ven 22/85:00 p.m.SEA - YXU
2 stops21h 07mUnited Airlines
Deal found 15/4C$ 277
ven 23/58:00 p.m.YXU - PDX
1 stop20h 05mWestJet
lun 26/51:45 p.m.PDX - YXU
1 stop12h 29mWestJet
Deal found 13/4C$ 318
dom 18/56:00 a.m.YXU - SEA
1 stop9h 58mMultiple Airlines
dom 25/56:25 a.m.SEA - YXU
2 stops19h 49mMultiple Airlines
Deal found 14/4C$ 368
dom 11/59:55 a.m.YXU - SEA
2 stops12h 42mAir Canada
gio 15/57:20 a.m.SEA - YXU
2 stops22h 59mAir Canada
Deal found 15/4C$ 380
lun 12/56:00 a.m.YXU - SEA
2 stops27h 30mDelta
gio 15/59:50 p.m.SEA - YXU
2 stops28h 24mDelta
Deal found 15/4C$ 716
ven 23/53:45 p.m.YXU - PDX
2 stops18h 57mUnited Airlines
lun 26/511:59 p.m.PDX - YXU
2 stops12h 04mUnited Airlines
Deal found 15/4C$ 814
ven 23/56:15 a.m.YXU - PDX
2 stops11h 25mAir Canada
lun 26/57:40 p.m.PDX - YXU
2 stops10h 38mAir Canada
Deal found 13/4C$ 1,225

Cheapflights Fare Finder

Customize your flight search to find flights from London 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 629,999 searches. Data last updated 15 aprile 2025.
Use the filters below to find and compare flights from London to Washington that are best for you.

Fly from

London

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

YXU - SEA

YXUSEA

London

ven 15/8

8:00 p.m.-8:28 p.m.

1 stop27h 28m

Seattle/Tacoma Intl

ven 22/8

7:35 p.m.-5:14 a.m.

1 stop6h 39m

C$ 252

LondonSeattle

YXU - SEA

YXUSEA

London

ven 15/8

6:15 a.m.-11:10 a.m.

1 stop7h 55m

Seattle/Tacoma Intl

ven 22/8

5:00 p.m.-5:07 p.m.

2 stops21h 07m

C$ 277

LondonPortland

YXU - PDX

YXUPDX

London

ven 23/5

8:00 p.m.-1:05 p.m.

1 stop20h 05m

Portland

lun 26/5

1:45 p.m.-5:14 a.m.

1 stop12h 29m

C$ 318

LondonSeattle

YXU - SEA

YXUSEA

London

dom 18/5

6:00 a.m.-12:58 p.m.

1 stop9h 58m

Seattle/Tacoma Intl

dom 25/5

6:25 a.m.-5:14 a.m.

2 stops19h 49m

C$ 368

LondonSeattle

YXU - SEA

YXUSEA

London

dom 11/5

9:55 a.m.-7:37 p.m.

2 stops12h 42m

Seattle/Tacoma Intl

gio 15/5

7:20 a.m.-9:19 a.m.

2 stops22h 59m

C$ 380

LondonSeattle

YXU - SEA

YXUSEA

London

lun 12/5

6:00 a.m.-6:30 a.m.

2 stops27h 30m

Seattle/Tacoma Intl

gio 15/5

9:50 p.m.-5:14 a.m.

2 stops28h 24m

C$ 716

LondonPortland

YXU - PDX

YXUPDX

London

ven 23/5

3:45 p.m.-7:42 a.m.

2 stops18h 57m

Portland

lun 26/5

11:59 p.m.-3:03 p.m.

2 stops12h 04m

C$ 814

LondonPortland

YXU - PDX

YXUPDX

London

ven 23/5

6:15 a.m.-2:40 p.m.

2 stops11h 25m

Portland

lun 26/5

7:40 p.m.-9:18 a.m.

2 stops10h 38m

C$ 1,225

LondonSeattle

YXU - SEA

YXUSEA

London

gio 1/5

6:15 a.m.-10:45 a.m.

1 stop7h 30m

C$ 169

LondonSeattle

YXU - SEA

YXUSEA

London

ven 2/5

3:45 p.m.-2:00 p.m.

3 stops25h 15m

C$ 182

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 11 results
1
2

Best time to book a flight from London to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from London 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 London to Washington

What is the cheapest month to book a flight from London, Ontario to State of Washington?

Currently, January is the cheapest month in which you can book a flight from London, Ontario to State of Washington (average of C$ 261). Flying from London, Ontario to State of Washington in December is currently the most expensive (average of C$ 353). 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 YXU to WA?

Find hourly flight availability from London 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 15 aprile 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to State of Washington as you normally would.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 15 aprile 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and WestJet from London to Washington 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.
Delta
8.0
Very good
7,917 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,658 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,805 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,127 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from London to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from London to Washington?

    Most people fly from London (YXU) if they book a flight from London to Washington. London is conveniently located just 8.6 km from London’s city centre.

  • What are the cheapest airlines to fly from London, Ontario to State of Washington one-way?

    C$ 169 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and WestJet, with prices starting from C$ 182 and C$ 191, respectively.

  • What are the most popular routes from London, Ontario to State of Washington?

    The most popular flight routes from London, Ontario to State of Washington are London - Seattle/Tacoma Intl, London - Wenatchee Pangborn Field and London - Portland.

  • Can I find deals for flights from London to Washington that include hotel bookings?

    Yes. In addition to deals on London to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Washington.

  • Can I find deals for business class flights from London to Washington?

    Yes. Cheapflights offers flight deals from London to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London, Ontario to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London, Ontario to State of Washington (average of C$ 261). Flying from London, Ontario to State of Washington in December is currently the most expensive (average of C$ 353). 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.

See more FAQs

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Alternative routes for London to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from London to Washington

Discover the top 2 airlines that operate flights from London 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 629,999 searches. Data last updated 15 aprile 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 241AverageC$ 361FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 362AverageC$ 455FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Washington?

Deals for London to Washington flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Washington?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Washington for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Washington with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Washington, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Washington become cheaper?

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