Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to the United States from C$ 202

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
8 jul. — 15 jul.1
1 adult

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 3 julio 2025.

Round-trip from

C$ 367

One-way from

C$ 202

Popular in

September

Cheapest in

January

Average price

C$ 594
WestJet
  • WestJet
  • 18/9-22/9
  • 3 total stops
  • 19h 53m total
  • London to USA
Search Deals
WestJet
  • WestJet
  • 17/8
  • 1 total stop
  • 8h 56m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to USA

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 3 julio 2025.

jue. 18/96:00 a.m.YXU - LAS
2 stops12h 01mWestJet
lun. 22/96:20 p.m.LAS - YXU
1 stop7h 52mWestJet
Deal found 2/7C$ 367
jue. 7/86:00 a.m.YXU - SEA
1 stop16h 21mWestJet
vie. 15/87:35 p.m.SEA - YXU
1 stop6h 39mWestJet
Deal found 1/7C$ 369
sáb. 16/86:00 a.m.YXU - SFO
1 stop8h 56mWestJet
sáb. 23/82:45 p.m.SFO - YXU
2 stops11h 29mWestJet
Deal found 2/7C$ 380
mié. 10/129:25 a.m.YXU - SFO
1 stop8h 50mAir Canada
mié. 7/16:00 p.m.SFO - YXU
2 stops11h 46mAir Canada
Deal found 2/7C$ 442
mié. 22/109:55 a.m.YXU - FLL
2 stops9h 35mAir Canada
sáb. 1/112:45 p.m.FLL - YXU
1 stop6h 36mAir Canada
Deal found 2/7C$ 462
jue. 20/115:40 p.m.YXU - MCO
1 stop5h 35mAir Canada
lun. 24/1112:10 p.m.MCO - YXU
1 stop4h 56mAir Canada
Deal found 2/7C$ 495
lun. 22/96:15 a.m.YXU - EWR
1 stop3h 59mAir Canada
lun. 22/94:55 p.m.EWR - YXU
1 stop4h 32mAir Canada
Deal found 3/7C$ 504
mié. 5/119:25 a.m.YXU - MIA
1 stop6h 06mAir Canada
lun. 10/118:00 a.m.MIA - YXU
2 stops13h 21mAir Canada
Deal found 1/7C$ 510
mié. 22/106:15 a.m.YXU - FLL
2 stops9h 12mUnited Airlines
sáb. 1/1111:00 a.m.FLL - YXU
2 stops10h 21mUnited Airlines
Deal found 2/7C$ 517
mar. 8/76:15 a.m.YXU - LAS
2 stops11h 41mUnited Airlines
lun. 14/712:59 a.m.LAS - YXU
2 stops11h 03mUnited Airlines
Deal found 1/7C$ 521
jue. 7/86:15 a.m.YXU - SEA
1 stop7h 45mUnited Airlines
jue. 14/810:05 p.m.SEA - YXU
2 stops13h 57mUnited Airlines
Deal found 1/7C$ 525
mar. 30/96:00 a.m.YXU - JFK
1 stop10h 32mWestJet
mié. 22/105:30 p.m.JFK - YXU
1 stop11h 42mWestJet
Deal found 2/7C$ 527

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 3 julio 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

jue. 18/9

6:00 a.m.-3:01 p.m.

2 stops12h 01m

Las Vegas Harry Reid Intl

lun. 22/9

6:20 p.m.-5:12 a.m.

1 stop7h 52m

C$ 367

LondonSeattle

YXU - SEA

YXUSEA

London

jue. 7/8

6:00 a.m.-7:21 p.m.

1 stop16h 21m

Seattle/Tacoma Intl

vie. 15/8

7:35 p.m.-5:14 a.m.

1 stop6h 39m

C$ 369

LondonSan Francisco

YXU - SFO

YXUSFO

London

sáb. 16/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

sáb. 23/8

2:45 p.m.-5:14 a.m.

2 stops11h 29m

C$ 380

LondonSan Francisco

YXU - SFO

YXUSFO

London

mié. 10/12

9:25 a.m.-3:15 p.m.

1 stop8h 50m

San Francisco

mié. 7/1

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

2 stops11h 46m

C$ 442

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

mié. 22/10

9:55 a.m.-7:30 p.m.

2 stops9h 35m

Fort Lauderdale

sáb. 1/11

2:45 p.m.-9:21 p.m.

1 stop6h 36m

C$ 462

LondonNewark

YXU - EWR

YXUEWR

London

lun. 22/9

6:15 a.m.-10:14 a.m.

1 stop3h 59m

Newark

lun. 22/9

4:55 p.m.-9:27 p.m.

1 stop4h 32m

C$ 504

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

mié. 22/10

9:55 a.m.-10:30 p.m.

3 stops12h 35m

Fort Lauderdale

sáb. 1/11

8:50 a.m.-5:06 p.m.

2 stops8h 16m

C$ 517

LondonLas Vegas

YXU - LAS

YXULAS

London

mar. 8/7

6:15 a.m.-2:56 p.m.

2 stops11h 41m

Las Vegas Harry Reid Intl

lun. 14/7

12:59 a.m.-3:02 p.m.

2 stops11h 03m

C$ 521

LondonSeattle

YXU - SEA

YXUSEA

London

jue. 7/8

6:15 a.m.-11:00 a.m.

1 stop7h 45m

Seattle/Tacoma Intl

jue. 14/8

10:05 p.m.-3:02 p.m.

2 stops13h 57m

C$ 525

LondonNew York

YXU - JFK

YXUJFK

London

mar. 30/9

6:00 a.m.-4:32 p.m.

1 stop10h 32m

New York John F Kennedy Intl

mié. 22/10

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

1 stop11h 42m

C$ 527

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 60 results
1
2
3
...
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, September is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 226). Flying from London, Ontario to USA in July is currently the most expensive (average of C$ 301). 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 3 julio 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to USA as you normally would.

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 3 julio 2025.
Check out reviews from past customers who have flown with Delta,United Airlines, andWestJet 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.
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,917 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Lufthansa
6.8
Okay
7,207 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines to fly from London, Ontario to USA one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 202. However, be on the lookout for offers from Air Canada and United Airlines, 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 - Newark. You may also consider London - New York LaGuardia or London - San Francisco.

  • 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, September is the cheapest month in which you can book a flight from London, Ontario to USA (average of C$ 226). Flying from London, Ontario to USA in July is currently the most expensive (average of C$ 301). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to USA

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Vancouver Intl flights
Pearson Intl to Calgary flights
Pierre Elliott Trudeau Intl to Cancún flights
Pierre Elliott Trudeau Intl to Vancouver Intl flights
Pearson Intl to Abbotsford flights
Toronto Island to Vancouver Intl flights
Hamilton to Vancouver Intl flights
Region of Waterloo Intl to Vancouver Intl flights
Pearson Intl to Newark flights
Pearson Intl to Edmonton flights
Hamilton to Calgary flights
Toronto Island to Halifax flights
Ottawa to Vancouver Intl flights
Toronto Island to Calgary flights
Region of Waterloo Intl to Calgary flights
Pierre Elliott Trudeau Intl to Calgary flights
Pearson Intl to LaGuardia flights
Toronto Island to Newark flights
Pearson Intl to Halifax flights
Pearson Intl to Cancún flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to St. John's flights
Pearson Intl to Mexico City flights
Hamilton to Halifax flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Pearson Intl to Los Angeles flights
Hamilton to Edmonton flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Las Vegas flights
Pearson Intl to Winnipeg flights
Pearson Intl to Fort Lauderdale flights
Region of Waterloo Intl to Halifax flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Miami flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Region of Waterloo Intl to Abbotsford flights
Pierre Elliott Trudeau Intl to Edmonton flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Toronto Island to Edmonton flights
Pearson Intl to Orlando flights
Pierre Elliott Trudeau Intl to Newark flights
Pierre Elliott Trudeau Intl to Mexico City flights
Pearson Intl to O'Hare Intl flights
Ottawa to Calgary flights
Pearson Intl to Cozumel flights
Pierre Elliott Trudeau Intl to Las Vegas flights

Top 3 airlines flying from London to USA

Discover the top 3 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 3 julio 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 189AverageC$ 471FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 237AverageC$ 411FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 327AverageC$ 604FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.