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Cheap flights from London, ON to the United States from C$ 223

YXU — LAX
23 Oct — 30 Oct1
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

Sun 29/1110:15 a.m. -
Nonstop3h 10m
Fri 4/121:55 p.m. -
Nonstop3h 05m
Deal found 22/9C$ 239
Sat 28/1110:00 a.m. -
Nonstop2h 55m
Thu 3/122:10 p.m. -
Nonstop2h 50m
Deal found 22/9C$ 320
Sun 29/1110:15 a.m. -
Nonstop3h 10m
Mon 30/112:40 p.m. -
Nonstop3h 05m
Deal found 22/9C$ 330
Thu 22/106:10 a.m. -
1 stop8h 50m
Thu 29/105:40 p.m. -
1 stop9h 55m
Deal found 22/9C$ 341
Wed 23/126:15 a.m. -
Nonstop3h 10m
Mon 28/1210:40 a.m. -
Nonstop3h 05m
Deal found 18/9C$ 358
Thu 26/1110:00 a.m. -
Nonstop2h 55m
Thu 3/122:10 p.m. -
Nonstop2h 50m
Deal found 22/9C$ 371
Thu 26/1110:00 a.m. -
Nonstop2h 55m
Sat 28/112:10 p.m. -
Nonstop2h 50m
Deal found 22/9C$ 405
Mon 21/126:15 a.m. -
Nonstop3h 10m
Mon 28/1210:40 a.m. -
Nonstop3h 05m
Deal found 18/9C$ 410
Fri 27/119:30 a.m. -
Nonstop3h 10m
Fri 4/121:55 p.m. -
Nonstop3h 05m
Deal found 22/9C$ 417
Wed 23/126:15 a.m. -
Nonstop3h 10m
Wed 30/127:45 p.m. -
Nonstop3h 05m
Deal found 18/9C$ 420
Mon 23/119:15 a.m. -
1 stop5h 49m
Fri 27/114:00 p.m. -
1 stop5h 57m
Deal found 22/9C$ 427
Thu 26/1110:00 a.m. -
Nonstop2h 55m
Sat 5/122:10 p.m. -
Nonstop2h 50m
Deal found 22/9C$ 430

Find flight deals from London to USA

Round-trip from

C$ 239

One-way from

C$ 223

Popular in

August

Cheapest in

January

Average price

C$ 742

Good round-trip deal

C$ 367 or less

Good one-way deal

C$ 177 or less
Porter Airlines
  • Porter Airlines
  • 29/11-4/12
  • Nonstop
  • 6h 15m total
  • London to USA
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Porter Airlines
  • Porter Airlines
  • 4/12-31/12
  • Nonstop
  • 3h 10m total
  • London to USA
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 228 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 36 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from London to USA.
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Price to beat on a one-way flight from London to USA.
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Cheapflights Fare Finder

 
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

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Fri 4/12

9:30 a.m.-12:40 p.m.

Nonstop3h 10m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 223

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Sun 14/3

6:15 a.m.-9:25 a.m.

Nonstop3h 10m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Fri 6/11

9:15 a.m.-9:09 p.m.

2 stops11h 54m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 249

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Wed 4/11

9:15 a.m.-8:06 p.m.

2 stops10h 51m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 253

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Mon 11/1

5:30 a.m.-12:34 p.m.

1 stop7h 04m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Tue 3/11

9:15 a.m.-3:40 p.m.

1 stop9h 25m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 266

LondonOrlando

YXU London - MCO Orlando

YXUMCO

London

Wed 2/12

5:30 a.m.-11:13 a.m.

1 stop5h 43m

Orlando

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 273

LondonOrlando

YXU London - MCO Orlando

YXUMCO

London

Thu 26/11

9:15 a.m.-7:36 p.m.

2 stops10h 21m

Orlando

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 299

LondonFort Lauderdale

YXU London - FLL Fort Lauderdale

YXUFLL

London

Mon 2/11

8:30 p.m.-2:21 p.m.

2 stops17h 51m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 303

LondonTampa

YXU London - TPA Tampa

YXUTPA

London

Fri 6/11

5:30 a.m.-3:02 p.m.

2 stops9h 32m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 310

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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$ 625). Flying from London, Ontario to USA in September is currently the most expensive (average of C$ 1,211). 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

Check out reviews from past customers who have flown with United Airlines and Air 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
10,230 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
10,230 reviews
United Airlines
7.4
Good
10,230 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
11,668 reviews
United Airlines
7.4
Good
10,230 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

  • 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 3h 10m. 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 - Miami or London - Fort Lauderdale.

  • 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$ 625). Flying from London, Ontario to USA in September is currently the most expensive (average of C$ 1,211). 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

Alternative routes for London to USA

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Top airline flying from London to USA

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 443AverageC$ 776FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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How does Cheapflights help users find flights from London to USA?

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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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