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Cheap flights from London, ON to the United States from C$ 193

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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
3 Jun — 10 Jun2
2 travellers
2 travellers, 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 May 2026.

Wed 17/66:10 a.m.
YXU
-
LAX
2 stops12h 50m
WestJet
Wed 24/64:55 p.m.
LAX
-
YXU
2 stops33h 25m
WestJet
Deal found 3/5C$ 365
Tue 25/85:40 a.m.
YXU
-
PHX
2 stops13h 15m
Air Canada
Wed 26/811:55 a.m.
PHX
-
YXU
1 stop6h 45m
Air Canada
Deal found 29/4C$ 395
Tue 25/86:10 a.m.
YXU
-
PHX
1 stop9h 00m
WestJet
Wed 26/81:15 p.m.
PHX
-
YXU
1 stop27h 35m
WestJet
Deal found 3/5C$ 434
Mon 1/65:55 p.m.
YXU
-
LAS
2 stops21h 35m
WestJet
Tue 9/61:20 p.m.
LAS
-
YXU
2 stops13h 00m
WestJet
Deal found 2/5C$ 448
Thu 24/96:10 a.m.
YXU
-
LAS
1 stop9h 45m
WestJet
Sat 3/108:30 a.m.
LAS
-
YXU
1 stop17h 50m
WestJet
Deal found 3/5C$ 473
Tue 4/86:10 a.m.
YXU
-
LAS
1 stop9h 45m
WestJet
Fri 7/86:10 p.m.
LAS
-
YXU
1 stop8h 10m
WestJet
Deal found 2/5C$ 486
Tue 16/65:55 p.m.
YXU
-
LAS
2 stops21h 35m
WestJet
Thu 18/61:20 p.m.
LAS
-
YXU
2 stops13h 00m
WestJet
Deal found 30/4C$ 498
Tue 25/85:40 a.m.
YXU
-
PHX
2 stops9h 46m
United Airlines
Wed 26/84:28 p.m.
PHX
-
YXU
2 stops19h 27m
United Airlines
Deal found 29/4C$ 506
Sat 6/65:55 p.m.
YXU
-
LAS
2 stops24h 50m
WestJet
Wed 10/61:20 p.m.
LAS
-
YXU
2 stops13h 00m
WestJet
Deal found 29/4C$ 507
Thu 8/106:10 a.m.
YXU
-
LAS
1 stop18h 30m
WestJet
Mon 12/108:30 a.m.
LAS
-
YXU
1 stop17h 50m
WestJet
Deal found 1/5C$ 525
Fri 28/85:40 a.m.
YXU
-
LAX
2 stops10h 21m
United Airlines
Sat 5/97:16 p.m.
LAX
-
YXU
3 stops19h 29m
United Airlines
Deal found 3/5C$ 556
Mon 15/65:10 a.m.
YXU
-
LAS
2 stops16h 13m
Multiple Airlines
Mon 22/66:10 p.m.
LAS
-
YXU
1 stop8h 10m
Multiple Airlines
Deal found 1/5C$ 574

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 May 2026.

Round-trip from

C$ 365

One-way from

C$ 193

Popular in

July

Cheapest in

April

Average price

C$ 605
WestJet
  • WestJet
  • 17/6-24/6
  • 4 total stops
  • 46h 15m total
  • London to USA
Search Deals
WestJet
  • WestJet
  • 21/6
  • 2 total stops
  • 12h 50m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 4 May 2026.
Use the filters below to find and compare flights from London to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPhoenix

YXU - PHX

YXUPHX

London

Tue 25/8

5:40 a.m.-3:55 p.m.

2 stops13h 15m

Phoenix Sky Harbor Intl

Wed 26/8

11:55 a.m.-9:40 p.m.

1 stop6h 45m

C$ 395

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 24/9

6:10 a.m.-12:55 p.m.

1 stop9h 45m

Las Vegas Harry Reid Intl

Sat 3/10

8:30 a.m.-5:20 a.m.

1 stop17h 50m

C$ 473

LondonPhoenix

YXU - PHX

YXUPHX

London

Tue 25/8

5:40 a.m.-12:26 p.m.

2 stops9h 46m

Phoenix Sky Harbor Intl

Wed 26/8

4:28 p.m.-2:55 p.m.

2 stops19h 27m

C$ 506

LondonLas Vegas

YXU - LAS

YXULAS

London

Sat 6/6

5:55 p.m.-3:45 p.m.

2 stops24h 50m

Las Vegas Harry Reid Intl

Wed 10/6

1:20 p.m.-5:20 a.m.

2 stops13h 00m

C$ 507

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 28/8

5:40 a.m.-1:01 p.m.

2 stops10h 21m

Los Angeles

Sat 5/9

7:16 p.m.-5:45 p.m.

3 stops19h 29m

C$ 556

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 18/6

6:10 a.m.-4:35 p.m.

2 stops13h 25m

Las Vegas Harry Reid Intl

Thu 25/6

6:10 p.m.-5:20 a.m.

1 stop8h 10m

C$ 588

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 8/10

5:55 p.m.-12:30 p.m.

2 stops21h 35m

Las Vegas Harry Reid Intl

Mon 12/10

8:30 a.m.-5:20 a.m.

1 stop17h 50m

C$ 605

LondonPhoenix

YXU - PHX

YXUPHX

London

Fri 29/5

2:40 p.m.-12:10 p.m.

2 stops24h 30m

Phoenix Sky Harbor Intl

Fri 5/6

5:55 p.m.-1:50 p.m.

2 stops40h 55m

C$ 633

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 30/6

2:40 p.m.-12:55 p.m.

2 stops25h 15m

Las Vegas Harry Reid Intl

Mon 6/7

6:10 p.m.-5:20 a.m.

1 stop8h 10m

C$ 634

LondonOrlando

YXU - MCO

YXUMCO

London

Sat 3/10

5:40 a.m.-10:54 a.m.

1 stop5h 14m

Orlando

Tue 6/10

11:50 a.m.-5:45 p.m.

1 stop5h 55m

C$ 639

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6

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$ 176). Flying from London, Ontario to USA in March is currently the most expensive (average of C$ 426). 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 4 May 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
9,680 reviews
Check prices

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,680 reviews
United Airlines
7.4
Good
9,680 reviews
Check prices

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
WestJet
7.2
Good
3,331 reviews
United Airlines
7.4
Good
9,680 reviews
Check prices

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Air Canada
7.1
Good
10,995 reviews
United Airlines
7.4
Good
9,680 reviews
Check prices

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 9h 45m. London, Ontario and USA are separated by a distance of 2992 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 - Newark. You may also consider London - New York John F Kennedy Intl or London - New York LaGuardia.

  • 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$ 176). Flying from London, Ontario to USA in March is currently the most expensive (average of C$ 426). 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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Top 2 airlines flying from London to USA

Discover the top 2 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 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 217AverageC$ 413FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 251AverageC$ 682FlexibilityNo 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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