London

$173+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
Mar 13 — Mar 201
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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 February 11, 2026.

This oojo deal was found by Cheapflights users on 2/10. 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.
Mon 5/255:30 pm
ORD
-
YXU
1 stop10h 50m
WestJet
Thu 5/286:10 am
YXU
-
ORD
1 stop11h 30m
WestJet
Deal found 2/10$282
This Air Canada deal was found by Cheapflights users on 2/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:45 am
SEA
-
YXU
2 stops12h 36m
Air Canada
Sat 2/285:40 pm
YXU
-
SEA
1 stop7h 36m
Air Canada
Deal found 2/8$312
This Air Canada deal was found by Cheapflights users on 2/9. 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.
Fri 3/278:00 am
SEA
-
YXU
1 stop10h 21m
Air Canada
Fri 4/39:25 am
YXU
-
SEA
1 stop15h 28m
Air Canada
Deal found 2/9$356
This oojo deal was found by Cheapflights users on 2/9. 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.
Sat 5/235:30 pm
ORD
-
YXU
1 stop10h 55m
WestJet
Tue 5/265:55 pm
YXU
-
ORD
1 stop23h 45m
WestJet
Deal found 2/9$392
This Trip.com deal was found by Cheapflights users on 2/8. 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.
Wed 3/256:20 pm
IAH
-
YXU
1 stop11h 15m
WestJet
Wed 4/18:10 pm
YXU
-
IAH
1 stop22h 20m
WestJet
Deal found 2/8$396
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Fri 3/278:00 am
SEA
-
YXU
1 stop10h 21m
United Airlines
Fri 4/35:10 am
YXU
-
SEA
2 stops20h 27m
United Airlines
Deal found 2/10$433
This FlightHub deal was found by Cheapflights users on 2/10. 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 6/295:55 pm
YXU
-
SAN
1 stop23h 15m
WestJet
Deal found 2/10$444
This Vliegwinkel deal was found by Cheapflights users on 2/10. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:05 am
EWR
-
YXU
1 stop6h 00m
Air Canada
Wed 3/115:10 am
YXU
-
EWR
1 stop5h 15m
Air Canada
Deal found 2/10$452
This Gotogate deal was found by Cheapflights users on 2/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/51:05 pm
LGA
-
YXU
1 stop4h 00m
Air Canada
Wed 3/115:10 am
YXU
-
LGA
1 stop4h 08m
Air Canada
Deal found 2/10$452
This Trip.com deal was found by Cheapflights users on 2/8. 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 6/42:50 pm
IAH
-
YXU
1 stop13h 30m
WestJet
Mon 6/86:10 am
YXU
-
IAH
1 stop17h 30m
WestJet
Deal found 2/8$462
This Air Canada deal was found by Cheapflights users on 2/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:40 am
SEA
-
YXU
2 stops12h 41m
Air Canada
Wed 4/15:10 am
YXU
-
SEA
2 stops12h 53m
Air Canada
Deal found 2/7$489
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/268:50 pm
SAN
-
YXU
2 stops8h 56m
United Airlines
Thu 4/25:10 am
YXU
-
SAN
1 stop9h 43m
United Airlines
Deal found 2/9$495

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$282
(oojo)

One-way from

$173
(Kiwi.com)
Provider with most accurate pricing for New York (NYC)-London flight deals.
Provider most trusted by Cheapflights users for New York (NYC)-London flights.
From USA to London
One-way flight from USA to London

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 February 11, 2026.
Use the filters below to find and compare flights from the United States to London that are best for you.

Fly from

USA

Fly to

London

Route

Depart

Return

Price

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 2/26

5:45 am-9:21 pm

2 stops12h 36m

London

Sat 2/28

5:40 pm-10:16 pm

1 stop7h 36m

$312

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 3/27

8:00 am-9:21 pm

1 stop10h 21m

London

Fri 4/3

5:40 pm-9:33 am

2 stops18h 53m

$356

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/23

5:30 pm-5:25 am

1 stop10h 55m

London

Tue 5/26

5:55 pm-4:40 pm

1 stop23h 45m

$392

HoustonLondon

IAH - YXU

IAHYXU

Houston George Bush Intcntl

Wed 3/25

6:20 pm-6:35 am

1 stop11h 15m

London

Wed 4/1

8:10 pm-5:30 pm

1 stop22h 20m

$396

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 3/27

8:00 am-9:21 pm

1 stop10h 21m

London

Fri 4/3

5:10 am-10:37 pm

2 stops20h 27m

$433

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/29

5:55 pm-2:10 pm

1 stop23h 15m

$444

HoustonLondon

IAH - YXU

IAHYXU

Houston George Bush Intcntl

Thu 6/4

2:50 pm-5:20 am

1 stop13h 30m

London

Mon 6/8

6:10 am-10:40 pm

1 stop17h 30m

$462

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 3/26

8:50 pm-8:46 am

2 stops8h 56m

London

Thu 4/2

5:10 am-11:53 am

1 stop9h 43m

$495

NewarkLondon

EWR - YXU

EWRYXU

Newark

Thu 3/5

8:55 am-6:35 am

3 stops21h 40m

London

Wed 3/11

9:40 am-1:33 pm

1 stop3h 53m

$503

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 3/6

6:55 pm-5:05 pm

2 stops19h 10m

London

Mon 3/9

5:40 pm-11:50 am

2 stops21h 10m

$510

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 51 results
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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

What is the cheapest month to book a flight from USA to London, Ontario?

Currently, March is the cheapest month in which you can book a flight from USA to London, Ontario (average of $53). Flying from USA to London, Ontario in August is currently the most expensive (average of $112). 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.

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
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.

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.

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.

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 February 11, 2026.
Peruse reviews from past customers who have flown with United Airlines, 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.

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 56m. Fly via Air Canada, WestJet, or United Airlines to get the fastest option. The distance between USA and London, Ontario is about 2070 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?

  • 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.

  • What is the cheapest month to book a flight from USA to London, Ontario?

    Currently, March is the cheapest month in which you can book a flight from USA to London, Ontario (average of $53). Flying from USA to London, Ontario in August is currently the most expensive (average of $112). 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

Traveling to a place near London?

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

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Alternative routes for USA to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from USA to London

Discover the top 3 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$145Average$540FlexibilityNo cancel feeOn-time67%
WestJetCheapest$162Average$478FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$192Average$351FlexibilityNo cancel feeOn-time69%

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