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Cheap flights from London, ON to the United States from C$ 262

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
10 Mar — 17 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to USA

Enter your travel dates to find the best prices.

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 8 February 2026.

Mon 18/56:15 a.m.
YXU
-
SEA
1 stop15h 30m
WestJet
Mon 25/57:35 p.m.
SEA
-
YXU
1 stop6h 50m
WestJet
Deal found 7/2C$ 407
Thu 5/35:40 p.m.
YXU
-
MCO
1 stop6h 10m
Air Canada
Thu 12/312:10 p.m.
MCO
-
YXU
1 stop4h 55m
Air Canada
Deal found 5/2C$ 500
Wed 25/35:10 a.m.
YXU
-
MCO
1 stop6h 05m
Air Canada
Wed 1/412:05 p.m.
MCO
-
YXU
1 stop4h 58m
Air Canada
Deal found 8/2C$ 506
Tue 3/35:40 p.m.
YXU
-
MCO
1 stop6h 10m
Air Canada
Tue 10/312:10 p.m.
MCO
-
YXU
1 stop4h 55m
Air Canada
Deal found 5/2C$ 522
Sun 1/35:40 p.m.
YXU
-
MCO
1 stop6h 10m
Air Canada
Sat 7/310:20 a.m.
MCO
-
YXU
1 stop6h 45m
Air Canada
Deal found 7/2C$ 528
Mon 23/35:40 p.m.
YXU
-
MCO
1 stop6h 10m
Air Canada
Mon 30/33:45 p.m.
MCO
-
YXU
1 stop5h 33m
Air Canada
Deal found 5/2C$ 529
Fri 6/39:40 a.m.
YXU
-
MCO
1 stop5h 27m
Air Canada
Tue 10/38:00 a.m.
MCO
-
YXU
1 stop13h 21m
Air Canada
Deal found 7/2C$ 540
Sun 8/35:40 p.m.
YXU
-
SEA
1 stop7h 36m
Air Canada
Wed 11/38:00 p.m.
SEA
-
YXU
2 stops9h 46m
Air Canada
Deal found 6/2C$ 541
Fri 13/35:40 p.m.
YXU
-
SEA
1 stop7h 36m
Air Canada
Tue 17/38:00 a.m.
SEA
-
YXU
1 stop10h 21m
Air Canada
Deal found 6/2C$ 544
Fri 22/55:55 p.m.
YXU
-
JFK
1 stop22h 40m
WestJet
Mon 25/55:30 p.m.
JFK
-
YXU
1 stop11h 50m
WestJet
Deal found 7/2C$ 547
Sun 22/35:10 a.m.
YXU
-
FLL
1 stop7h 33m
Air Canada
Fri 10/411:15 a.m.
FLL
-
YXU
1 stop5h 48m
Air Canada
Deal found 6/2C$ 547
Fri 20/35:40 p.m.
YXU
-
MCO
1 stop6h 10m
Air Canada
Thu 9/412:05 p.m.
MCO
-
YXU
1 stop4h 58m
Air Canada
Deal found 5/2C$ 547

Find flight deals from London to USA

Keep the following information in mind while searching for London to USA flight deals. Data was last updated 8 February 2026.

Round-trip from

C$ 407

One-way from

C$ 262

Popular in

December

Cheapest in

March

Average price

C$ 476
WestJet
  • WestJet
  • 18/5-25/5
  • 2 total stops
  • 22h 20m total
  • London to USA
Search Deals
Air Canada
  • Air Canada
  • 18/2
  • 1 total stop
  • 6h 10m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 8 February 2026.
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

LondonSeattle

YXU - SEA

YXUSEA

London

Mon 18/5

6:15 a.m.-6:45 p.m.

1 stop15h 30m

Seattle/Tacoma Intl

Mon 25/5

7:35 p.m.-5:25 a.m.

1 stop6h 50m

C$ 407

LondonOrlando

YXU - MCO

YXUMCO

London

Sun 1/3

5:40 p.m.-11:50 p.m.

1 stop6h 10m

Orlando

Sat 7/3

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

1 stop6h 45m

C$ 528

LondonOrlando

YXU - MCO

YXUMCO

London

Fri 6/3

9:40 a.m.-3:07 p.m.

1 stop5h 27m

Orlando

Tue 10/3

8:00 a.m.-9:21 p.m.

1 stop13h 21m

C$ 540

LondonSeattle

YXU - SEA

YXUSEA

London

Sun 8/3

5:40 p.m.-10:16 p.m.

1 stop7h 36m

Seattle/Tacoma Intl

Wed 11/3

8:00 p.m.-8:46 a.m.

2 stops9h 46m

C$ 541

LondonOrlando

YXU - MCO

YXUMCO

London

Mon 23/3

5:40 p.m.-11:50 p.m.

1 stop6h 10m

Orlando

Mon 30/3

8:30 a.m.-5:03 p.m.

2 stops8h 33m

C$ 541

LondonSeattle

YXU - SEA

YXUSEA

London

Fri 13/3

5:40 p.m.-10:16 p.m.

1 stop7h 36m

Seattle/Tacoma Intl

Tue 17/3

8:00 a.m.-9:21 p.m.

1 stop10h 21m

C$ 544

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Mon 13/4

5:10 a.m.-11:11 a.m.

1 stop6h 01m

Fort Lauderdale

Fri 17/4

11:15 a.m.-5:03 p.m.

1 stop5h 48m

C$ 555

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Tue 24/3

5:10 a.m.-1:25 p.m.

2 stops8h 15m

Fort Lauderdale

Thu 9/4

11:15 a.m.-5:03 p.m.

1 stop5h 48m

C$ 559

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Mon 23/3

9:40 a.m.-8:10 p.m.

2 stops10h 30m

Fort Lauderdale

Thu 9/4

11:15 a.m.-5:03 p.m.

1 stop5h 48m

C$ 559

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Sun 22/3

9:40 a.m.-8:10 p.m.

2 stops10h 30m

Fort Lauderdale

Thu 9/4

11:15 a.m.-5:03 p.m.

1 stop5h 48m

C$ 559

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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, April is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 89). Flying from London, Ontario to USA in December is currently the most expensive (average of C$ 198). 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.

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 8 February 2026.
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
9,259 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,259 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
WestJet
7.2
Good
3,256 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
10,698 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Flair Airlines
6.0
Okay
264 reviews
United Airlines
7.4
Good
9,259 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 6h 10m. London, Ontario and USA are separated by a distance of 1622 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 Flair Airlines, with whom users have recently found tickets for as low as C$ 101. However, be on the lookout for offers from Air Canada and WestJet, 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 - Orlando. You may also consider London - Miami or London - Fort Lauderdale.

  • 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, April is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 89). Flying from London, Ontario to USA in December is currently the most expensive (average of C$ 198). 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 8 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 159AverageC$ 219FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
United AirlinesCheapestC$ 177AverageC$ 441FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 218AverageC$ 391FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 252AverageC$ 647FlexibilityNo 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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