HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$185+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from USA to London with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 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 June 10, 2026.

This Booking.com deal was found by Cheapflights users on 6/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:35 pm
SEA
-
YXU
1 stop6h 45m
WestJet
Sun 7/265:55 pm
YXU
-
SEA
1 stop30h 05m
WestJet
Deal found 6/7$443
This oojo deal was found by Cheapflights users on 6/9. 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 7/166:00 am
SFO
-
YXU
1 stop7h 45m
WestJet
Thu 7/235:55 pm
YXU
-
SFO
1 stop25h 45m
WestJet
Deal found 6/9$443
This Booking.com deal was found by Cheapflights users on 6/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:00 am
SEA
-
YXU
1 stop6h 45m
WestJet
Sun 11/18:00 pm
YXU
-
SEA
1 stop20h 20m
WestJet
Deal found 6/6$444
This Trip.com deal was found by Cheapflights users on 6/9. 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 10/297:00 am
LAX
-
YXU
1 stop9h 15m
WestJet
Mon 11/28:00 pm
YXU
-
LAX
1 stop17h 23m
WestJet
Deal found 6/9$447
This Booking.com deal was found by Cheapflights users on 6/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:05 pm
LAX
-
YXU
1 stop8h 15m
WestJet
Wed 7/296:10 am
YXU
-
LAX
2 stops12h 50m
WestJet
Deal found 6/6$448
This Trip.com deal was found by Cheapflights users on 6/9. 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.
Tue 9/227:35 pm
SEA
-
YXU
1 stop6h 45m
WestJet
Wed 10/76:10 am
YXU
-
SEA
1 stop15h 35m
WestJet
Deal found 6/9$462
This Trip.com deal was found by Cheapflights users on 6/8. 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 8/67:35 pm
SEA
-
YXU
1 stop6h 45m
WestJet
Mon 8/105:55 pm
YXU
-
SEA
1 stop18h 45m
WestJet
Deal found 6/8$464
This Air Canada deal was found by Cheapflights users on 6/9. 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 10/1311:35 am
SFO
-
YXU
1 stop7h 05m
Air Canada
Thu 10/155:40 am
YXU
-
SFO
1 stop9h 54m
Air Canada
Deal found 6/9$467
This Justfly.com deal was found by Cheapflights users on 6/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:35 pm
SEA
-
YXU
1 stop6h 45m
WestJet
Thu 10/86:10 am
YXU
-
SEA
1 stop15h 35m
WestJet
Deal found 6/9$491
This Booking.com deal was found by Cheapflights users on 6/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:05 pm
LAX
-
YXU
1 stop22h 45m
WestJet
Tue 7/285:55 pm
YXU
-
LAX
1 stop21h 30m
WestJet
Deal found 6/5$509
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 10/298:45 am
LAX
-
YXU
2 stops10h 01m
United Airlines
Mon 11/23:25 pm
YXU
-
LAX
1 stop9h 02m
United Airlines
Deal found 6/9$513
This WestJet deal was found by Cheapflights users on 6/5. 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 10/126:00 am
SFO
-
YXU
1 stop7h 45m
WestJet
Wed 10/146:10 am
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 6/5$515

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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$443
(Booking.com)

One-way from

$185
(Booking.com)
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 June 10, 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

Thu 7/16

6:00 am-4:45 pm

1 stop7h 45m

London

Thu 7/23

5:55 pm-4:40 pm

1 stop25h 45m

$443

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 10/13

11:35 am-9:40 pm

1 stop7h 05m

London

Thu 10/15

5:40 am-3:21 pm

2 stops12h 41m

$472

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 10/29

8:40 pm-7:15 pm

2 stops19h 35m

London

Mon 11/2

8:00 pm-10:23 am

1 stop17h 23m

$480

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 7/23

6:05 pm-7:50 pm

1 stop22h 45m

London

Tue 7/28

5:55 pm-12:25 pm

1 stop21h 30m

$509

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 10/29

8:45 am-9:46 pm

2 stops10h 01m

London

Mon 11/2

3:25 pm-9:27 pm

1 stop9h 02m

$513

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 10/12

6:00 am-4:45 pm

1 stop7h 45m

London

Wed 10/14

6:10 am-12:00 pm

1 stop8h 50m

$515

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 10/29

8:45 am-9:46 pm

2 stops10h 01m

London

Mon 11/2

9:45 am-9:39 pm

2 stops14h 54m

$521

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 7/23

6:05 pm-5:20 am

1 stop8h 15m

London

Tue 7/28

6:10 am-1:01 pm

2 stops33h 51m

$525

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 10/29

4:20 pm-9:06 am

1 stop13h 46m

London

Mon 11/2

3:25 pm-9:27 pm

1 stop9h 02m

$527

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Wed 10/14

7:35 pm-5:20 am

1 stop6h 45m

London

Thu 10/15

5:55 pm-9:40 am

1 stop18h 45m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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 June 10, 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
3,356 reviews

Food

6.2

Comfort

7.0

Overall

7.2

Boarding

7.4

Crew

7.9

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
3,356 reviews
WestJet
7.2
Good
3,356 reviews

Food

6.2

Comfort

7.0

Overall

7.2

Boarding

7.4

Crew

7.9

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
11,154 reviews
WestJet
7.2
Good
3,356 reviews

Food

6.2

Comfort

7.0

Overall

7.2

Boarding

7.4

Crew

7.9

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 7h 05m. Fly via WestJet, Air Canada, or United Airlines 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 Seattle/Tacoma Intl - London, Orlando - London and Newark - 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?

Book flights to London if you plan to visit one of these locations
Grand Bend

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for USA to London

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Toronto Island flights
Newark to Pearson Intl flights
John F Kennedy Intl to Pearson Intl flights
LaGuardia to Pearson Intl flights
Vancouver Intl to Pearson Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Reagan-National to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Los Angeles to Pearson Intl flights
Dallas/Fort Worth to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
San Francisco to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Seattle to Pearson Intl flights
Baltimore to Pearson Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Orlando to Pearson Intl flights
Vancouver Intl to Hamilton flights
Atlanta to Pearson Intl flights
George Bush Intcntl to Pearson Intl flights
Abbotsford to Pearson Intl flights
O'Hare Intl to Toronto Island flights
Boston to Pearson Intl flights
Fort Lauderdale to Pearson Intl flights
Midway to Pearson Intl flights
Miami to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Boston to Toronto Island flights
Midway to Toronto Island flights
Denver to Pearson Intl flights
Miami to Pearson Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Raleigh to Pearson Intl flights
Tampa to Pearson Intl flights
Ontario to Pearson Intl flights

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 June 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$162Average$601FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$210Average$641FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.