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Cheap flights from London, ON to the United States from C$ 222

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
3 Jan — 10 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 4 December 2025.

Wed 31/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Wed 7/14:05 p.m.MCO - YXU
1 stop5h 16mAir Canada
Deal found 3/12C$ 462
Tue 30/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Tue 6/112:10 p.m.MCO - YXU
1 stop4h 55mAir Canada
Deal found 2/12C$ 521
Wed 17/125:10 a.m.YXU - FLL
2 stops14h 52mUnited Airlines
Tue 30/129:00 a.m.FLL - YXU
2 stops12h 21mUnited Airlines
Deal found 4/12C$ 588
Wed 24/129:25 a.m.YXU - TPA
2 stops11h 57mAir Canada
Sun 28/1210:25 p.m.TPA - YXU
1 stop10h 21mAir Canada
Deal found 2/12C$ 631
Sun 14/125:10 a.m.YXU - FLL
2 stops11h 08mUnited Airlines
Sun 28/127:00 a.m.FLL - YXU
2 stops14h 21mUnited Airlines
Deal found 4/12C$ 639
Tue 9/129:25 a.m.YXU - MIA
1 stop5h 56mAir Canada
Sun 14/1211:35 a.m.MIA - YXU
1 stop9h 46mAir Canada
Deal found 2/12C$ 675
Wed 17/125:10 a.m.YXU - FLL
2 stops14h 52mUnited Airlines
Wed 31/128:55 a.m.FLL - YXU
2 stops12h 26mUnited Airlines
Deal found 4/12C$ 681
Wed 17/125:10 a.m.YXU - MIA
1 stop6h 15mAir Canada
Wed 31/127:25 a.m.MIA - YXU
1 stop9h 40mAir Canada
Deal found 4/12C$ 717
Wed 17/125:10 a.m.YXU - MIA
1 stop6h 15mAir Canada
Tue 30/127:25 a.m.MIA - YXU
1 stop13h 56mAir Canada
Deal found 4/12C$ 723
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 3/12C$ 740
Sun 14/125:10 a.m.YXU - FLL
1 stop7h 33mAir Canada
Mon 29/1211:15 a.m.FLL - YXU
1 stop5h 50mAir Canada
Deal found 2/12C$ 754
Wed 17/125:10 a.m.YXU - MIA
2 stops17h 00mUnited Airlines
Tue 30/127:15 a.m.MIA - YXU
2 stops14h 06mUnited Airlines
Deal found 4/12C$ 794

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 4 December 2025.

Round-trip from

C$ 388

One-way from

C$ 222

Popular in

October

Cheapest in

January

Average price

C$ 634
Air Canada
  • Air Canada
  • 20/1-22/1
  • 3 total stops
  • 20h 30m total
  • London to USA
Search Deals
Air Canada
  • Air Canada
  • 17/1
  • 1 total stop
  • 8h 40m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 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 4 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

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 20/1

5:10 a.m.-3:35 p.m.

2 stops13h 25m

San Francisco

Thu 22/1

6:00 p.m.-8:46 a.m.

2 stops11h 46m

C$ 388

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 2/5

8:00 p.m.-9:45 p.m.

1 stop28h 45m

Los Angeles

Fri 8/5

7:00 a.m.-7:07 p.m.

1 stop9h 07m

C$ 420

LondonOrlando

YXU - MCO

YXUMCO

London

Wed 4/2

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

1 stop6h 10m

Orlando

Tue 10/2

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

1 stop5h 16m

C$ 428

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 22/1

5:10 a.m.-10:54 a.m.

1 stop8h 44m

San Francisco

Mon 2/2

2:30 p.m.-8:46 a.m.

1 stop15h 16m

C$ 437

LondonOrlando

YXU - MCO

YXUMCO

London

Thu 5/2

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

1 stop6h 10m

Orlando

Tue 10/2

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

1 stop6h 45m

C$ 449

LondonOrlando

YXU - MCO

YXUMCO

London

Thu 29/1

9:50 a.m.-3:05 p.m.

1 stop5h 15m

Orlando

Mon 9/2

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

1 stop6h 45m

C$ 455

LondonTampa

YXU - TPA

YXUTPA

London

Sat 17/1

9:50 a.m.-9:12 p.m.

2 stops11h 22m

Tampa

Sat 24/1

10:25 p.m.-8:46 a.m.

1 stop10h 21m

C$ 456

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Thu 26/3

9:25 a.m.-8:10 p.m.

2 stops10h 45m

Fort Lauderdale

Tue 31/3

11:20 a.m.-9:18 p.m.

2 stops9h 58m

C$ 456

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 2/5

3:35 p.m.-8:38 p.m.

1 stop8h 03m

Los Angeles

Fri 8/5

9:50 p.m.-9:17 a.m.

1 stop8h 27m

C$ 459

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 17/1

5:10 a.m.-10:32 a.m.

1 stop8h 22m

Los Angeles

Sat 24/1

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

1 stop6h 51m

C$ 459

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

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$ 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 4 December 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 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 4 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
9,063 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,063 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
WestJet
7.2
Good
3,190 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,500 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Flair Airlines
6.0
Okay
254 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 13h 25m. London, Ontario and USA are separated by a distance of 3508 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$ 103. 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 - Miami. You may also consider London - Fort Lauderdale or London - Orlando.

  • 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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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 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 161AverageC$ 240FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
United AirlinesCheapestC$ 180AverageC$ 557FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 244AverageC$ 412FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 308AverageC$ 649FlexibilityNo 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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