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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
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 20 November 2025.

Mon 24/115:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Wed 3/128:30 a.m.MCO - YXU
2 stops8h 35mAir Canada
Deal found 20/11C$ 461
Mon 15/125:40 p.m.YXU - FLL
1 stop6h 32mAir Canada
Mon 22/1211:40 p.m.FLL - YXU
2 stops9h 06mAir Canada
Deal found 17/11C$ 485
Tue 30/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Tue 6/110:20 a.m.MCO - YXU
1 stop6h 45mAir Canada
Deal found 19/11C$ 522
Mon 1/125:40 p.m.YXU - FLL
1 stop6h 32mAir Canada
Sat 27/127:30 a.m.FLL - YXU
1 stop9h 35mAir Canada
Deal found 19/11C$ 544
Mon 1/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Fri 5/129:50 p.m.MCO - YXU
1 stop10h 56mAir Canada
Deal found 18/11C$ 546
Wed 26/115:15 a.m.YXU - FLL
2 stops15h 14mUnited Airlines
Wed 3/127:05 a.m.FLL - YXU
2 stops10h 00mUnited Airlines
Deal found 19/11C$ 589
Mon 29/129:25 a.m.YXU - MCO
1 stop14h 05mAir Canada
Mon 5/110:00 p.m.MCO - YXU
1 stop10h 46mAir Canada
Deal found 19/11C$ 636
Sun 14/125:10 a.m.YXU - FLL
2 stops8h 15mAir Canada
Sun 28/1210:15 p.m.FLL - YXU
1 stop10h 31mAir Canada
Deal found 19/11C$ 640
Thu 25/125:10 a.m.YXU - EWR
1 stop5h 15mAir Canada
Wed 31/124:30 p.m.EWR - YXU
1 stop4h 51mAir Canada
Deal found 20/11C$ 649
Thu 25/125:10 a.m.YXU - LGA
1 stop4h 03mAir Canada
Wed 31/123:30 p.m.LGA - YXU
1 stop5h 51mAir Canada
Deal found 20/11C$ 649
Wed 26/115:15 a.m.YXU - MIA
2 stops13h 02mUnited Airlines
Wed 3/126:00 a.m.MIA - YXU
2 stops11h 05mUnited Airlines
Deal found 19/11C$ 684
Wed 31/125:10 a.m.YXU - EWR
1 stop5h 15mAir Canada
Wed 7/14:30 p.m.EWR - YXU
1 stop4h 51mAir Canada
Deal found 19/11C$ 685

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 20 November 2025.

Round-trip from

C$ 391

One-way from

C$ 266

Popular in

October

Cheapest in

January

Average price

C$ 611
WestJet
  • WestJet
  • 16/1-25/1
  • 2 total stops
  • 26h 45m total
  • London to USA
Search Deals
Air Canada
  • Air Canada
  • 25/1
  • 2 total stops
  • 11h 14m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 20 November 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

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 16/1

7:30 a.m.-10:03 p.m.

1 stop17h 33m

Los Angeles

Sun 25/1

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

1 stop9h 12m

C$ 391

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Mon 26/1

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

2 stops8h 15m

Fort Lauderdale

Thu 29/1

1:40 p.m.-9:21 p.m.

1 stop7h 41m

C$ 497

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Wed 11/2

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

1 stop6h 32m

Fort Lauderdale

Wed 18/2

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

1 stop5h 50m

C$ 498

LondonOrlando

YXU - MCO

YXUMCO

London

Mon 26/1

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

1 stop6h 10m

Orlando

Thu 29/1

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

1 stop5h 16m

C$ 498

LondonLos Angeles

YXU - LAX

YXULAX

London

Sun 22/2

8:10 p.m.-11:00 a.m.

2 stops17h 50m

Los Angeles

Thu 26/2

11:50 a.m.-6:35 a.m.

2 stops15h 45m

C$ 499

LondonLos Angeles

YXU - LAX

YXULAX

London

Thu 29/1

8:10 p.m.-10:03 p.m.

1 stop28h 53m

Los Angeles

Mon 2/2

11:50 a.m.-6:35 a.m.

2 stops15h 45m

C$ 509

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 3/1

9:25 a.m.-3:17 p.m.

1 stop8h 52m

Los Angeles

Sat 10/1

10:55 p.m.-8:46 a.m.

1 stop6h 51m

C$ 522

LondonOrlando

YXU - MCO

YXUMCO

London

Tue 30/12

5:40 p.m.-11:30 p.m.

1 stop5h 50m

Orlando

Tue 6/1

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

1 stop6h 45m

C$ 522

LondonLas Vegas

YXU - LAS

YXULAS

London

Wed 25/2

8:10 p.m.-6:39 p.m.

2 stops25h 29m

Las Vegas Harry Reid Intl

Sat 28/2

7:05 p.m.-7:13 p.m.

1 stop21h 08m

C$ 530

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 16/1

9:25 a.m.-3:17 p.m.

1 stop8h 52m

Los Angeles

Sat 24/1

12:40 a.m.-5:05 p.m.

2 stops13h 25m

C$ 547

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/11

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$ 91). Flying from London, Ontario to USA in February is currently the most expensive (average of C$ 172). 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 20 November 2025.

It’s typically best to fly out from London, Ontario to USA in the evening. Doing so could potentially save you 27% 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 10 November 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 20 November 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
9,027 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,027 reviews
United Airlines
7.4
Good
9,027 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
WestJet
7.2
Good
3,168 reviews
United Airlines
7.4
Good
9,027 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,462 reviews
United Airlines
7.4
Good
9,027 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Flair Airlines
6.0
Okay
254 reviews
United Airlines
7.4
Good
9,027 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 8h 15m. London, Ontario and USA are separated by a distance of 1886 km. This flight may include one or multiple stops.

  • 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 - Fort Lauderdale or London - Miami.

  • 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$ 91). Flying from London, Ontario to USA in February is currently the most expensive (average of C$ 172). 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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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 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 163AverageC$ 254FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
United AirlinesCheapestC$ 182AverageC$ 570FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 246AverageC$ 408FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 310AverageC$ 700FlexibilityNo 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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