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Cheap flights from London, ON to the United States from C$ 201

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 316

One-way from

C$ 201

Popular in

September

Cheapest in

January

Average price

C$ 589
WestJet
  • WestJet
  • 28/7-30/7
  • 3 total stops
  • 21h 40m total
  • London to USA
Search Deals
Air Canada
  • Air Canada
  • 6/8
  • 1 total stop
  • 7h 30m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 12 June 2025.

Mon 28/76:00 a.m.YXU - LAS
2 stops13h 31mWestJet
Wed 30/78:00 a.m.LAS - YXU
1 stop8h 09mWestJet
Deal found 11/6C$ 316
Fri 26/93:35 p.m.YXU - SFO
1 stop8h 18mAir Canada
Tue 28/1010:45 p.m.SFO - YXU
1 stop7h 20mAir Canada
Deal found 11/6C$ 360
Tue 4/113:25 p.m.YXU - FLL
1 stop7h 41mAir Canada
Tue 11/1111:30 a.m.FLL - YXU
2 stops10h 15mAir Canada
Deal found 10/6C$ 379
Sun 29/68:00 p.m.YXU - SFO
1 stop19h 05mWestJet
Sat 5/72:45 p.m.SFO - YXU
2 stops11h 29mWestJet
Deal found 11/6C$ 380
Mon 30/69:45 p.m.YXU - SFO
1 stop14h 45mMultiple Airlines
Sat 5/72:45 p.m.SFO - YXU
2 stops11h 29mMultiple Airlines
Deal found 11/6C$ 427
Sat 1/119:45 a.m.YXU - MCO
1 stop5h 21mAir Canada
Sat 8/118:00 a.m.MCO - YXU
1 stop7h 05mAir Canada
Deal found 10/6C$ 436
Mon 29/93:35 p.m.YXU - SFO
1 stop8h 57mUnited Airlines
Tue 14/1012:43 a.m.SFO - YXU
2 stops11h 14mUnited Airlines
Deal found 10/6C$ 451
Sun 27/79:55 a.m.YXU - LAS
2 stops9h 45mUnited Airlines
Wed 30/76:00 a.m.LAS - YXU
2 stops12h 27mUnited Airlines
Deal found 11/6C$ 458
Wed 5/119:45 a.m.YXU - MIA
1 stop5h 47mAir Canada
Mon 10/118:00 a.m.MIA - YXU
1 stop7h 05mAir Canada
Deal found 11/6C$ 474
Mon 28/76:15 a.m.YXU - LAS
1 stop7h 56mAir Canada
Wed 30/711:05 p.m.LAS - YXU
1 stop7h 12mAir Canada
Deal found 11/6C$ 480
Fri 12/99:55 a.m.YXU - MCO
2 stops10h 12mUnited Airlines
Sun 21/96:00 a.m.MCO - YXU
2 stops8h 57mUnited Airlines
Deal found 10/6C$ 481
Fri 25/79:45 p.m.YXU - LAS
3 stops24h 53mMultiple Airlines
Fri 1/810:05 a.m.LAS - YXU
2 stops16h 09mMultiple Airlines
Deal found 10/6C$ 488

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 June 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

Mon 28/7

6:00 a.m.-4:31 p.m.

2 stops13h 31m

Las Vegas Harry Reid Intl

Wed 30/7

8:00 a.m.-7:09 p.m.

1 stop8h 09m

C$ 316

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 26/9

3:35 p.m.-8:53 p.m.

1 stop8h 18m

San Francisco

Tue 28/10

10:45 p.m.-9:05 a.m.

1 stop7h 20m

C$ 360

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Tue 4/11

3:25 p.m.-11:06 p.m.

1 stop7h 41m

Fort Lauderdale

Tue 11/11

11:30 a.m.-9:45 p.m.

2 stops10h 15m

C$ 379

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sun 29/6

8:00 p.m.-12:05 p.m.

1 stop19h 05m

San Francisco

Sat 5/7

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

2 stops11h 29m

C$ 380

LondonSan Francisco

YXU - SFO

YXUSFO

London

Mon 30/6

9:45 p.m.-9:30 a.m.

1 stop14h 45m

San Francisco

Sat 5/7

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

2 stops11h 29m

C$ 427

LondonSan Francisco

YXU - SFO

YXUSFO

London

Mon 29/9

3:35 p.m.-9:32 p.m.

1 stop8h 57m

San Francisco

Tue 14/10

12:43 a.m.-2:57 p.m.

2 stops11h 14m

C$ 451

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 27/7

9:55 a.m.-4:40 p.m.

2 stops9h 45m

Las Vegas Harry Reid Intl

Wed 30/7

6:00 a.m.-9:27 p.m.

2 stops12h 27m

C$ 458

LondonMiami

YXU - MIA

YXUMIA

London

Wed 5/11

9:45 a.m.-3:32 p.m.

1 stop5h 47m

Miami

Mon 10/11

8:00 a.m.-3:05 p.m.

1 stop7h 05m

C$ 474

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 28/7

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

1 stop7h 56m

Las Vegas Harry Reid Intl

Wed 30/7

11:05 p.m.-9:17 a.m.

1 stop7h 12m

C$ 480

LondonOrlando

YXU - MCO

YXUMCO

London

Wed 13/8

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

1 stop6h 00m

Orlando

Sun 17/8

8:05 p.m.-9:17 a.m.

1 stop13h 12m

C$ 480

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

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, 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$ 306). 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 June 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.

Rainfall in USA by month

Plan your trip to USA by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in USA ranges from 61.0 - 221.0 mm per month. June is typically the wettest month, when rainfall can reach 221.0 mm. November is typically the driest time to visit USA when rainfall is around 61.0 mm.

Temperature in USA by month

Plan your trip to USA by taking into account the average temperature totals by month.

If weather is an important factor for your trip to USA, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

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 June 2025.
Read through reviews of airlines operating flights from London to USA, such as Delta, SWISS and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Air Canada, with whom users have recently found tickets for as low as C$ 201. However, be on the lookout for offers from WestJet 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 - 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, 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$ 306). 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 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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 190AverageC$ 473FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 238AverageC$ 418FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 328AverageC$ 596FlexibilityNo 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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