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$84+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$194
(Justfly.com)

One-way from

$84
(Air Canada)
Provider with most accurate pricing for New York (NYC)-London flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-London flights.
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From USA to London
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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 April 24, 2025.

This Justfly.com deal was found by Cheapflights users on 4/22. 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.
Tue 7/297:35 pmSEA - YXU
1 stop6h 39mWestJet
Sun 8/246:00 amYXU - SEA
1 stop9h 58mWestJet
Deal found 4/22$194
This Flightnetwork deal was found by Cheapflights users on 4/22. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/61:15 pmSEA - YXU
2 stops12h 59mMultiple Airlines
Fri 6/136:15 amYXU - SEA
1 stop7h 36mMultiple Airlines
Deal found 4/22$197
This Flightnetwork deal was found by Cheapflights users on 4/23. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/710:00 amSEA - YXU
2 stops20h 18mAir Canada
Sat 6/146:15 amYXU - SEA
1 stop7h 36mAir Canada
Deal found 4/23$213
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 6/77:45 amDEN - YXU
1 stop5h 13mUnited Airlines
Sat 6/146:15 amYXU - DEN
1 stop6h 15mUnited Airlines
Deal found 4/23$213
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sun 7/2711:45 pmSEA - YXU
2 stops12h 12mUnited Airlines
Sun 8/246:15 amYXU - SEA
1 stop7h 55mUnited Airlines
Deal found 4/22$232
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/257:35 pmSEA - YXU
1 stop6h 39mDelta
Wed 7/306:00 amYXU - SEA
1 stop9h 58mDelta
Deal found 4/22$316
This Trip.com deal was found by Cheapflights users on 4/23. 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 6/76:05 pmLAX - YXU
1 stop8h 09mWestJet
Sat 6/148:00 pmYXU - LAX
1 stop17h 53mWestJet
Deal found 4/23$316
This Mytrip deal was found by Cheapflights users on 4/23. 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.
Fri 5/302:45 pmSFO - YXU
2 stops11h 29mWestJet
Sun 6/16:00 amYXU - SFO
2 stops10h 59mWestJet
Deal found 4/23$326
This Mytrip deal was found by Cheapflights users on 4/23. 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 6/1410:56 pmSFO - YXU
1 stop7h 22mAir Canada
Mon 6/163:35 pmYXU - SFO
1 stop9h 02mAir Canada
Deal found 4/23$331
This United deal was found by Cheapflights users on 4/23. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/257:15 amTPA - YXU
2 stops13h 04mMultiple Airlines
Mon 4/285:15 amYXU - TPA
1 stop4h 55mMultiple Airlines
Deal found 4/23$331
This United Airlines deal was found by Cheapflights users on 4/23. 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 6/67:25 amTPA - YXU
2 stops25h 53mUnited Airlines
Fri 6/139:55 amYXU - TPA
2 stops10h 36mUnited Airlines
Deal found 4/23$337
This Air Canada deal was found by Cheapflights users on 4/23. 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 6/68:50 pmTPA - YXU
1 stop12h 28mAir Canada
Fri 6/136:15 amYXU - TPA
1 stop4h 55mAir Canada
Deal found 4/23$350

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 24, 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

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 7/29

7:35 pm-5:14 am

1 stop6h 39m

London

Sun 8/24

6:00 am-12:58 pm

1 stop9h 58m

$194

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 6/6

1:15 pm-5:14 am

2 stops12h 59m

London

Fri 6/13

6:15 am-10:51 am

1 stop7h 36m

$197

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 6/7

10:00 am-9:18 am

2 stops20h 18m

London

Sat 6/14

6:15 am-10:51 am

1 stop7h 36m

$213

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sat 6/7

7:45 am-2:58 pm

1 stop5h 13m

London

Sat 6/14

6:15 am-10:30 am

1 stop6h 15m

$213

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 7/27

11:45 pm-2:57 pm

2 stops12h 12m

London

Sun 8/24

6:15 am-11:10 am

1 stop7h 55m

$232

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 7/25

7:35 pm-5:14 am

1 stop6h 39m

London

Wed 7/30

6:00 am-12:58 pm

1 stop9h 58m

$316

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Sat 6/7

6:05 pm-5:14 am

1 stop8h 09m

London

Sat 6/14

8:00 pm-10:53 am

1 stop17h 53m

$316

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 5/30

2:45 pm-5:14 am

2 stops11h 29m

London

Sun 6/1

6:00 am-1:59 pm

2 stops10h 59m

$326

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 6/14

10:56 pm-9:18 am

1 stop7h 22m

London

Mon 6/16

3:35 pm-9:37 pm

1 stop9h 02m

$331

TampaLondon

TPA - YXU

TPAYXU

Tampa

Fri 6/6

7:25 am-9:18 am

2 stops25h 53m

London

Fri 6/13

9:55 am-8:31 pm

2 stops10h 36m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 46 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 April 24, 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 April 24, 2025.
Read through reviews of airlines operating flights from USA to London, such as Delta, United Airlines and WestJet. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,816 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,192 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Air Canada, with whom users have recently found tickets for as low as $84. However, be on the lookout for offers from United Airlines and WestJet, 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, Washington, D.C. Dulles Intl - London and Washington, D.C. Reagan-National - 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

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Midway to Toronto Island 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$183Average$363FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$192Average$584FlexibilityNo cancel feeOn-time67%
WestJetCheapest$306Average$501FlexibilityNo cancel feeOn-time60%

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