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Cheap flights from London, ON to the United States from C$ 266

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
11 Jan — 18 Jan1
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 12 December 2025.

Wed 17/125:10 a.m.YXU - TPA
2 stops14h 29mUnited Airlines
Sun 18/16:00 a.m.TPA - YXU
2 stops11h 05mUnited Airlines
Deal found 11/12C$ 604
Sat 27/129:25 a.m.YXU - MCO
1 stop14h 05mAir Canada
Wed 7/110:20 a.m.MCO - YXU
1 stop6h 45mAir Canada
Deal found 10/12C$ 637
Sun 14/129:25 a.m.YXU - FLL
2 stops11h 04mUnited Airlines
Sun 28/127:00 a.m.FLL - YXU
2 stops14h 21mUnited Airlines
Deal found 11/12C$ 677
Sun 14/125:40 p.m.YXU - FLL
1 stop6h 32mAir Canada
Sun 28/1210:15 p.m.FLL - YXU
1 stop10h 31mAir Canada
Deal found 10/12C$ 687
Fri 26/125:40 p.m.YXU - EWR
1 stop5h 08mAir Canada
Thu 1/111:05 a.m.EWR - YXU
1 stop6h 00mAir Canada
Deal found 10/12C$ 810
Fri 26/125:10 a.m.YXU - LGA
1 stop5h 33mAir Canada
Thu 1/111:30 a.m.LGA - YXU
1 stop5h 35mAir Canada
Deal found 10/12C$ 810
Sat 27/129:25 a.m.YXU - MCO
2 stops23h 23mUnited Airlines
Wed 7/112:15 p.m.MCO - YXU
2 stops9h 06mUnited Airlines
Deal found 10/12C$ 841
Fri 26/125:10 a.m.YXU - EWR
1 stop5h 15mAir Canada
Mon 29/1211:05 a.m.EWR - YXU
1 stop6h 00mAir Canada
Deal found 11/12C$ 884
Sun 21/125:10 a.m.YXU - SFO
2 stops15h 40mUnited Airlines
Thu 1/15:00 a.m.SFO - YXU
2 stops13h 21mUnited Airlines
Deal found 9/12C$ 956
Fri 26/125:40 p.m.YXU - EWR
1 stop5h 08mUnited Airlines
Mon 29/128:00 a.m.EWR - YXU
2 stops13h 21mUnited Airlines
Deal found 11/12C$ 957
Fri 19/129:25 a.m.YXU - SFO
1 stop9h 00mAir Canada
Tue 30/128:50 p.m.SFO - YXU
2 stops17h 15mAir Canada
Deal found 9/12C$ 1,003
Fri 19/129:25 a.m.YXU - SFO
1 stop9h 00mAir Canada
Thu 1/18:49 a.m.SFO - YXU
1 stop9h 32mAir Canada
Deal found 9/12C$ 1,004

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 12 December 2025.

Round-trip from

C$ 469

One-way from

C$ 266

Popular in

December

Cheapest in

April

Average price

C$ 651
WestJet
  • WestJet
  • 8/1-15/1
  • 3 total stops
  • 42h 45m total
  • London to USA
Search Deals
25/1
  • 25/1
  • 2 total stops
  • 28h 48m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 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

Thu 8/1

8:10 p.m.-9:31 p.m.

1 stop28h 21m

Las Vegas Harry Reid Intl

Thu 15/1

1:10 p.m.-6:34 a.m.

2 stops14h 24m

C$ 469

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Wed 28/1

5:40 p.m.-12:12 a.m.

1 stop6h 32m

Fort Lauderdale

Wed 4/2

11:15 a.m.-5:05 p.m.

1 stop5h 50m

C$ 481

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Tue 27/1

5:40 p.m.-12:12 a.m.

1 stop6h 32m

Fort Lauderdale

Wed 4/2

1:40 p.m.-9:20 p.m.

1 stop7h 40m

C$ 481

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Tue 27/1

5:40 p.m.-12:12 a.m.

1 stop6h 32m

Fort Lauderdale

Thu 5/2

11:15 a.m.-5:05 p.m.

1 stop5h 50m

C$ 481

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Wed 28/1

5:40 p.m.-12:12 a.m.

1 stop6h 32m

Fort Lauderdale

Tue 3/2

11:20 a.m.-9:20 p.m.

2 stops10h 00m

C$ 490

LondonTampa

YXU - TPA

YXUTPA

London

Sun 1/2

9:25 a.m.-3:12 p.m.

1 stop5h 47m

Tampa

Thu 5/2

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

1 stop5h 06m

C$ 492

LondonTampa

YXU - TPA

YXUTPA

London

Tue 14/4

5:10 a.m.-10:55 a.m.

1 stop5h 45m

Tampa

Thu 16/4

4:05 p.m.-9:18 p.m.

1 stop5h 13m

C$ 492

LondonOrlando

YXU - MCO

YXUMCO

London

Sun 25/1

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

1 stop6h 10m

Orlando

Thu 29/1

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

1 stop4h 55m

C$ 492

LondonOrlando

YXU - MCO

YXUMCO

London

Sun 8/3

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

1 stop6h 10m

Orlando

Thu 12/3

4:05 p.m.-9:21 p.m.

1 stop5h 16m

C$ 492

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Mon 26/1

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

2 stops8h 15m

Fort Lauderdale

Wed 28/1

11:15 a.m.-5:05 p.m.

1 stop5h 50m

C$ 496

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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$ 90). Flying from London, Ontario to USA in December is currently the most expensive (average of C$ 170). 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 12 December 2025.

It’s typically best to fly out from London, Ontario to USA in the evening. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from London, Ontario to USA?

Use this chart to determine the cheapest time to fly round-trip from London to USA. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their London, Ontario to USA flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 12 December 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
9,095 reviews
Check prices

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
WestJet
7.2
Good
3,194 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Air Canada
7.1
Good
10,514 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Flair Airlines
6.0
Okay
255 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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 32m. London, Ontario and USA are separated by a distance of 1886 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 - Dallas/Fort Worth. You may also consider London - Orlando 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, April is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 90). Flying from London, Ontario to USA in December is currently the most expensive (average of C$ 170). 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

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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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 159AverageC$ 236FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
United AirlinesCheapestC$ 178AverageC$ 549FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 242AverageC$ 400FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 304AverageC$ 641FlexibilityNo 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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