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$128+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from USA to London

Keep the following information in mind while searching for USA to London flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$267
(Trip.com)

One-way from

$128
(Trip.com)

Good one-way deal

$32 or less
Provider with most accurate pricing for New York (NYC)-London flight deals.
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One-way flight from USA to London
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Find 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 March 28, 2025.

This Trip.com deal was found by Cheapflights users on 3/27. 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 4/1011:20 amCLT - YXU
1 stop24h 00mMultiple Airlines
Mon 4/1412:20 pmYXU - CLT
1 stop22h 58mMultiple Airlines
Deal found 3/27$267
This Trip.com deal was found by Cheapflights users on 3/27. 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 5/107:05 amSEA - YXU
1 stop9h 04mWestJet
Sat 5/176:00 amYXU - SEA
1 stop17h 28mWestJet
Deal found 3/27$288
This Trip.com deal was found by Cheapflights users on 3/27. 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 5/16:05 pmLAX - YXU
1 stop8h 09mWestJet
Sun 5/118:00 pmYXU - LAX
1 stop17h 53mWestJet
Deal found 3/27$292
This Justfly.com deal was found by Cheapflights users on 3/27. 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.
Thu 5/112:35 pmLAX - YXU
2 stops13h 39mMultiple Airlines
Sun 5/116:15 amYXU - LAX
1 stop7h 26mMultiple Airlines
Deal found 3/27$304
This Booking.com deal was found by Cheapflights users on 3/26. 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 5/1012:10 amSFO - YXU
2 stops11h 48mAir Canada
Sun 5/183:35 pmYXU - SFO
1 stop9h 14mAir Canada
Deal found 3/26$330
This oojo deal was found by Cheapflights users on 3/27. 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.
Fri 5/97:30 amSFO - YXU
1 stop8h 39mWestJet
Fri 5/168:00 pmYXU - SFO
1 stop28h 25mWestJet
Deal found 3/27$331
This Booking.com deal was found by Cheapflights users on 3/26. 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 5/117:30 amSFO - YXU
1 stop18h 44mMultiple Airlines
Sun 5/189:55 amYXU - SFO
2 stops17h 04mMultiple Airlines
Deal found 3/26$351
This United Airlines deal was found by Cheapflights users on 3/27. 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 5/812:10 amSFO - YXU
2 stops11h 48mUnited Airlines
Fri 5/163:35 pmYXU - SFO
1 stop8h 27mUnited Airlines
Deal found 3/27$372
This United Airlines deal was found by Cheapflights users on 3/27. 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 5/912:56 amLAX - YXU
2 stops11h 02mUnited Airlines
Sat 5/179:55 amYXU - LAX
1 stop7h 44mUnited Airlines
Deal found 3/27$383
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Sat 5/107:05 amSEA - YXU
1 stop9h 04mMultiple Airlines
Sat 5/176:00 amYXU - SEA
3 stops21h 10mMultiple Airlines
Deal found 3/27$401
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Sat 5/108:33 pmDFW - YXU
3 stops31h 41mMultiple Airlines
Sat 5/176:00 amYXU - DFW
2 stops24h 32mMultiple Airlines
Deal found 3/27$427
This Mytrip deal was found by Cheapflights users on 3/28. 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.
Sat 5/109:02 pmORD - YXU
2 stops31h 12mMultiple Airlines
Sat 5/176:00 amYXU - ORD
2 stops32h 35mMultiple Airlines
Deal found 3/28$461

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 March 28, 2025.
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

CharlotteLondon

CLT - YXU

CLTYXU

Charlotte Douglas

Thu 4/10

11:20 am-11:20 am

1 stop24h 00m

London

Mon 4/14

12:20 pm-11:18 am

1 stop22h 58m

$267

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 5/10

7:05 am-7:09 pm

1 stop9h 04m

London

Sat 5/17

6:00 am-8:28 pm

1 stop17h 28m

$288

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 5/1

6:05 pm-5:14 am

1 stop8h 09m

London

Sun 5/11

8:00 pm-10:53 am

1 stop17h 53m

$292

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 5/1

12:35 pm-5:14 am

2 stops13h 39m

London

Sun 5/11

6:15 am-10:41 am

1 stop7h 26m

$304

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 5/10

12:10 am-2:58 pm

2 stops11h 48m

London

Sun 5/18

3:35 pm-9:49 pm

1 stop9h 14m

$330

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 5/9

7:30 am-7:09 pm

1 stop8h 39m

London

Fri 5/16

8:00 pm-9:25 pm

1 stop28h 25m

$331

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 5/11

7:30 am-5:14 am

1 stop18h 44m

London

Sun 5/18

9:55 am-11:59 pm

2 stops17h 04m

$351

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 5/8

12:10 am-2:58 pm

2 stops11h 48m

London

Fri 5/16

3:35 pm-9:02 pm

1 stop8h 27m

$372

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Fri 5/9

12:56 am-2:58 pm

2 stops11h 02m

London

Sat 5/17

9:55 am-2:39 pm

1 stop7h 44m

$383

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 5/10

7:05 am-7:09 pm

1 stop9h 04m

London

Sat 5/17

6:00 am-12:10 am

3 stops21h 10m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 40 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 time of day to fly from US to YXU?

Find hourly flight availability from USA to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

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

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 March 28, 2025.
Read through reviews of airlines operating flights from USA to London, such as United Airlines, WestJet and Air Canada. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,785 reviews
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
8,986 reviews
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $128. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from USA to London, Ontario for a low price.

  • 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, Chicago O'Hare Intl - London and Dallas/Fort Worth - 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

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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.
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Baltimore to Pearson Intl flights
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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$183Average$363FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$192Average$584FlexibilityNo cancel feeOn-time67%
WestJetCheapest$278Average$473FlexibilityNo cancel feeOn-time60%
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