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Cheap flights from London, ON to the United States from C$ 220

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from London to USA

Keep the following information in mind while searching for London to USA flight deals. Data was last updated 11 September 2025.

Round-trip from

C$ 389

One-way from

C$ 220

Popular in

September

Cheapest in

January

Average price

C$ 618
WestJet
  • WestJet
  • 16/1-25/1
  • 2 total stops
  • 21h 40m total
  • London to USA
Search Deals
WestJet
  • WestJet
  • 24/10
  • 1 total stop
  • 21h 43m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from London to USA

Cheapest flights from London to USA
Explore the most affordable flight options available from London to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Tue 21/108:00 p.m.YXU - LAS
2 stops19h 32mWestJet
Fri 24/101:25 p.m.LAS - YXU
2 stops12h 47mWestJet
Deal found 11/9C$ 403
Tue 14/108:00 p.m.YXU - LAS
2 stops27h 21mWestJet
Fri 17/106:20 p.m.LAS - YXU
1 stop7h 52mWestJet
Deal found 10/9C$ 405
Wed 22/106:00 a.m.YXU - SEA
1 stop9h 59mWestJet
Tue 11/113:10 p.m.SEA - YXU
1 stop25h 02mWestJet
Deal found 11/9C$ 410
Wed 19/119:25 a.m.YXU - TPA
2 stops11h 47mAir Canada
Wed 3/124:15 p.m.TPA - YXU
1 stop5h 06mAir Canada
Deal found 9/9C$ 414
Tue 14/108:00 p.m.YXU - LAS
2 stops19h 32mWestJet
Wed 22/108:00 a.m.LAS - YXU
1 stop8h 07mWestJet
Deal found 10/9C$ 417
Wed 3/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Thu 18/1210:20 a.m.MCO - YXU
1 stop6h 45mAir Canada
Deal found 9/9C$ 418
Sat 25/106:00 a.m.YXU - SEA
1 stop9h 59mWestJet
Tue 11/113:10 p.m.SEA - YXU
1 stop25h 02mWestJet
Deal found 11/9C$ 432
Wed 22/106:00 a.m.YXU - SEA
1 stop9h 59mWestJet
Wed 12/113:10 p.m.SEA - YXU
1 stop25h 02mWestJet
Deal found 11/9C$ 442
Fri 24/108:00 p.m.YXU - SEA
1 stop19h 59mWestJet
Thu 13/113:10 p.m.SEA - YXU
1 stop25h 02mWestJet
Deal found 11/9C$ 445
Mon 1/125:40 p.m.YXU - FLL
1 stop6h 32mAir Canada
Fri 5/122:45 p.m.FLL - YXU
1 stop6h 36mAir Canada
Deal found 11/9C$ 450
Thu 4/129:25 a.m.YXU - FLL
2 stops10h 45mAir Canada
Fri 12/1211:15 a.m.FLL - YXU
2 stops10h 06mAir Canada
Deal found 9/9C$ 456
Mon 8/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Mon 15/1210:20 a.m.MCO - YXU
1 stop6h 45mAir Canada
Deal found 9/9C$ 456

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to USA 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 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from London to the United States that are best for you.

Fly from

London

Fly to

USA

Route

Depart

Return

Price

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 14/10

8:00 p.m.-12:32 p.m.

2 stops19h 32m

Las Vegas Harry Reid Intl

Fri 17/10

6:20 p.m.-5:12 a.m.

1 stop7h 52m

C$ 406

LondonSeattle

YXU - SEA

YXUSEA

London

Thu 23/10

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Tue 11/11

3:10 p.m.-7:12 p.m.

1 stop25h 02m

C$ 410

LondonTampa

YXU - TPA

YXUTPA

London

Sun 22/2

5:45 a.m.-11:02 a.m.

1 stop5h 17m

Tampa

Thu 26/2

4:15 p.m.-9:21 p.m.

1 stop5h 06m

C$ 414

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 16/1

7:30 a.m.-4:58 p.m.

1 stop12h 28m

Los Angeles

Sun 25/1

7:00 a.m.-7:12 p.m.

1 stop9h 12m

C$ 414

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 14/10

8:00 p.m.-5:34 p.m.

1 stop24h 34m

Las Vegas Harry Reid Intl

Wed 22/10

6:20 p.m.-5:12 a.m.

1 stop7h 52m

C$ 418

LondonOrlando

YXU - MCO

YXUMCO

London

Sun 25/1

5:45 a.m.-5:07 p.m.

2 stops11h 22m

Orlando

Thu 29/1

8:30 a.m.-9:21 p.m.

2 stops12h 51m

C$ 420

LondonOrlando

YXU - MCO

YXUMCO

London

Tue 27/1

5:45 a.m.-5:07 p.m.

2 stops11h 22m

Orlando

Tue 3/2

8:30 a.m.-9:21 p.m.

2 stops12h 51m

C$ 420

LondonOrlando

YXU - MCO

YXUMCO

London

Tue 27/1

5:45 a.m.-5:07 p.m.

2 stops11h 22m

Orlando

Wed 4/2

12:10 p.m.-5:05 p.m.

1 stop4h 55m

C$ 420

LondonOrlando

YXU - MCO

YXUMCO

London

Tue 27/1

5:45 a.m.-5:07 p.m.

2 stops11h 22m

Orlando

Thu 29/1

12:10 p.m.-5:05 p.m.

1 stop4h 55m

C$ 420

LondonOrlando

YXU - MCO

YXUMCO

London

Wed 28/1

5:45 a.m.-11:15 a.m.

1 stop5h 30m

Orlando

Fri 30/1

10:20 a.m.-5:05 p.m.

1 stop6h 45m

C$ 420

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from London to USA

Have a flexible travel schedule? Discover the best time to fly to USA from London 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 London to the United States

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

Currently, May is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 231). Flying from London, Ontario to USA in March is currently the most expensive (average of C$ 296). 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.

What is the cheapest time of day to fly from YXU to US?

Find hourly flight availability from London to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

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

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. 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 USA. Reviews last updated 11 September 2025.
Check out reviews from past customers who have flown with United Airlines,WestJet, andAir Canada from London to the United States 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.
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
WestJet
7.2
Good
3,091 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Flair Airlines
6.0
Okay
250 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

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

    Located just 8.6 km from the city centre, London (YXU) is the airport most travellers will use when flying to United States from London.

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

    Departing from London, Ontario to USA will take you 5h 17m. London, Ontario and USA are separated by a distance of 1677 km. This flight may include one or multiple stops.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 220. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from London, Ontario to USA for a low price.

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

    The most popular route from London, Ontario to USA is London - Los Angeles. You may also consider London - Seattle/Tacoma Intl or London - Las Vegas Harry Reid Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to USA 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 London, Ontario to USA?

    Currently, May is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 231). Flying from London, Ontario to USA in March is currently the most expensive (average of C$ 296). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to USA

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from London to USA

Discover the top 4 airlines that operate flights from London to USA. 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 161AverageC$ 263FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
United AirlinesCheapestC$ 192AverageC$ 560FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 243AverageC$ 409FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 306AverageC$ 672FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to USA?

Cheapflights helps you search for flights from London to USA via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to USA?

Cheapflights simply makes it quick and affordable to book flights from London to USA by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to USA with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to USA flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to USA become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to USA from London today and book when prices fit your budget.

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