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$182+ Cheap flights from the United States 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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Cheap flight deals from USA to London

Cheapest flights from USA to London
Explore the most affordable flight options available from USA to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.

This FlightHub deal was found by Cheapflights users on 4/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:05 pm
SFO
-
YXU
1 stop8h 15m
WestJet
Tue 7/146:10 am
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 4/16$346
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:05 pm
SFO
-
YXU
1 stop8h 15m
WestJet
Tue 7/142:40 pm
YXU
-
SFO
2 stops10h 15m
WestJet
Deal found 4/15$352
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:05 pm
LAX
-
YXU
1 stop8h 15m
WestJet
Mon 6/296:10 am
YXU
-
LAX
2 stops12h 50m
WestJet
Deal found 4/15$368
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:05 pm
LAX
-
YXU
1 stop22h 45m
WestJet
Sun 8/96:10 am
YXU
-
LAX
1 stop10h 55m
WestJet
Deal found 4/15$375
This Trip.com deal was found by Cheapflights users on 4/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:05 pm
SFO
-
YXU
1 stop8h 15m
WestJet
Thu 6/116:10 am
YXU
-
SFO
1 stop13h 30m
WestJet
Deal found 4/16$398
This WestJet deal was found by Cheapflights users on 4/13. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:05 pm
LAX
-
YXU
1 stop8h 15m
WestJet
Fri 8/286:10 am
YXU
-
LAX
1 stop9h 15m
WestJet
Deal found 4/13$418
This WestJet deal was found by Cheapflights users on 4/17. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:05 pm
SFO
-
YXU
1 stop8h 15m
WestJet
Wed 9/26:10 am
YXU
-
SFO
1 stop18h 45m
WestJet
Deal found 4/17$421
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/223:30 pm
SAN
-
YXU
1 stop10h 50m
WestJet
Mon 6/296:10 am
YXU
-
SAN
1 stop11h 00m
WestJet
Deal found 4/15$431
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am
SAN
-
YXU
2 stops11h 40m
Air Canada
Sat 9/265:40 am
YXU
-
SAN
1 stop9h 36m
Air Canada
Deal found 4/13$458
This oojo deal was found by Cheapflights users on 4/15. 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.
Thu 6/186:30 pm
BOS
-
YXU
1 stop10h 50m
WestJet
Mon 6/226:10 am
YXU
-
BOS
1 stop11h 30m
WestJet
Deal found 4/15$461
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:00 am
SAN
-
YXU
2 stops11h 38m
Air Canada
Sun 5/175:10 am
YXU
-
SAN
1 stop10h 08m
Air Canada
Deal found 4/14$467
This WestJet deal was found by Cheapflights users on 4/17. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/53:30 pm
SAN
-
YXU
1 stop22h 15m
WestJet
Tue 6/96:10 am
YXU
-
SAN
1 stop11h 00m
WestJet
Deal found 4/17$481

Find flight deals from USA to London

Keep the following information in mind while searching for USA to London flight deals. Data was last updated April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$346
(FlightHub)

One-way from

$182
(Air Canada)
Provider with most accurate pricing for New York (NYC)-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-London flights.
Search Deals
From USA to London
Search Deals
One-way flight from USA to London
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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 18, 2026.
Use the filters below to find and compare flights from the United States to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 7/10

6:05 pm-5:20 am

1 stop8h 15m

London

Tue 7/14

2:40 pm-9:55 pm

2 stops10h 15m

$352

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 6/6

6:05 pm-5:20 am

1 stop8h 15m

London

Thu 6/11

6:10 am-4:40 pm

1 stop13h 30m

$398

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Mon 8/24

6:05 pm-5:20 am

1 stop8h 15m

London

Fri 8/28

6:10 am-12:25 pm

1 stop9h 15m

$418

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 8/6

7:30 am-7:50 pm

1 stop9h 20m

London

Sun 8/9

5:55 pm-4:00 pm

2 stops25h 05m

$422

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/29

6:10 am-2:10 pm

1 stop11h 00m

$431

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 9/22

7:00 am-9:40 pm

2 stops11h 40m

London

Sat 9/26

5:40 am-12:16 pm

1 stop9h 36m

$458

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 5/9

8:05 am-9:38 pm

2 stops10h 33m

London

Wed 5/13

5:10 am-10:50 am

1 stop8h 40m

$482

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 7/31

12:15 pm-5:20 am

1 stop15h 05m

London

Sun 8/9

5:55 pm-11:20 am

1 stop19h 25m

$492

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 8/31

11:46 pm-2:55 pm

2 stops12h 09m

London

Wed 9/2

9:30 am-3:27 pm

1 stop8h 57m

$502

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Fri 5/1

6:05 pm-5:20 am

1 stop8h 15m

London

Mon 5/4

6:10 am-2:05 pm

1 stop10h 55m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
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6

Best time to book a flight from USA to London

Have a flexible travel schedule? Discover the best time to fly to London from USA 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 the United States to London
No data available for this route at this time. Please check back soon.

The best insider tips for theUnited States to London flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to London trip
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Mark Chesnut

Mark Chesnut

Expert on WestJet

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

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 18, 2026.
Peruse reviews from past customers who have flown with WestJet and Air Canada from the United States 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.
WestJet
7.2
Good
3,321 reviews

Overall

7.2

Comfort

7.0

Crew

7.9

Boarding

7.4

Food

6.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Janice,Mar 2026

TQO - YYZ

I had a very happy experience with fast boarding, an early flight and landing, and a quick baggage claim.
WestJet
7.2
Good
3,321 reviews
WestJet
7.2
Good
3,321 reviews

Overall

7.2

Comfort

7.0

Crew

7.9

Boarding

7.4

Food

6.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Janice,Mar 2026

TQO - YYZ

I had a very happy experience with fast boarding, an early flight and landing, and a quick baggage claim.
Air Canada
7.1
Good
10,935 reviews
WestJet
7.2
Good
3,321 reviews

Overall

7.2

Comfort

7.0

Crew

7.9

Boarding

7.4

Food

6.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Janice,Mar 2026

TQO - YYZ

I had a very happy experience with fast boarding, an early flight and landing, and a quick baggage claim.

Related info for your journey

Find useful and relevant information for your journey from USA to London. 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 into for flights to London from United States?

    London (YXU) is the airport you will fly into if you book a flight from United States to London. It is only a 5.3 mi journey from London (YXU) to London’s city center.

  • How long is the flight from USA to London, Ontario?

    There are many flights that can get you from USA to London, Ontario in 8h 15m. Fly via WestJet or Air Canada to get the fastest option. The distance between USA and London, Ontario is about 2180 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from USA to London, Ontario?

    The most popular flight routes from USA to London, Ontario are Chicago O'Hare Intl - London, San Francisco - London and Boston Logan Intl - London.

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

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

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

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

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

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

See more FAQs

Traveling to a place near London?

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Top 2 airlines flying from USA to London

Discover the top 2 airlines that operate flights from USA 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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$162Average$405FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$210Average$601FlexibilityNo cancel feeOn-time67%

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