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Cheap flights from the United States to London, ON from C$ 253

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
6 Mar — 13 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to London

Enter your travel dates to find the best prices.

Cheapest flights from USA to London
Explore the most affordable flight options available from USA to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 February 2026.

Mon 25/55:30 p.m.
ORD
-
YXU
1 stop10h 55m
WestJet
Thu 28/56:15 a.m.
YXU
-
ORD
1 stop11h 25m
WestJet
Deal found 2/2C$ 456
Wed 18/210:20 a.m.
MCO
-
YXU
1 stop6h 45m
Air Canada
Sun 22/25:40 p.m.
YXU
-
MCO
1 stop6h 10m
Air Canada
Deal found 1/2C$ 555
Thu 7/55:30 p.m.
ORD
-
YXU
1 stop10h 55m
Multiple Airlines
Tue 12/55:55 p.m.
YXU
-
ORD
2 stops25h 45m
Multiple Airlines
Deal found 3/2C$ 660
Wed 14/1011:50 a.m.
MCO
-
YXU
1 stop5h 55m
Air Canada
Wed 28/103:25 p.m.
YXU
-
MCO
1 stop5h 25m
Air Canada
Deal found 4/2C$ 671
Thu 19/38:00 a.m.
MCO
-
YXU
2 stops9h 05m
Air Canada
Sun 22/35:10 a.m.
YXU
-
MCO
1 stop6h 05m
Air Canada
Deal found 3/2C$ 697
Tue 17/28:43 p.m.
MCO
-
YXU
2 stops20h 22m
United Airlines
Fri 20/29:25 a.m.
YXU
-
MCO
2 stops8h 57m
United Airlines
Deal found 3/2C$ 717
Wed 1/44:15 p.m.
ORD
-
YXU
1 stop4h 03m
Air Canada
Wed 15/49:25 a.m.
YXU
-
ORD
1 stop4h 40m
Air Canada
Deal found 3/2C$ 762
Thu 7/52:15 p.m.
ORD
-
YXU
1 stop6h 23m
Air Canada
Tue 12/512:20 p.m.
YXU
-
ORD
1 stop5h 39m
Air Canada
Deal found 3/2C$ 772
Sat 23/52:15 p.m.
ORD
-
YXU
1 stop6h 23m
Air Canada
Tue 26/512:20 p.m.
YXU
-
ORD
2 stops8h 48m
Air Canada
Deal found 3/2C$ 783
Tue 17/311:30 a.m.
LGA
-
YXU
1 stop5h 35m
Air Canada
Tue 24/39:40 a.m.
YXU
-
LGA
1 stop4h 48m
Air Canada
Deal found 2/2C$ 800
Fri 20/34:30 p.m.
IAD
-
YXU
1 stop4h 51m
Air Canada
Fri 27/39:40 a.m.
YXU
-
IAD
1 stop6h 06m
Air Canada
Deal found 3/2C$ 800
Tue 27/109:45 a.m.
JFK
-
YXU
1 stop5h 21m
Air Canada
Fri 30/109:45 a.m.
YXU
-
JFK
1 stop6h 29m
Air Canada
Deal found 3/2C$ 800

Find flight deals from USA to London

Keep the following information in mind while searching for USA to London flight deals. Data was last updated 4 February 2026.

Round-trip from

C$ 456

One-way from

C$ 253
WestJet
  • WestJet
  • 25/5-28/5
  • 2 total stops
  • 22h 20m total
  • USA to London
Search Deals
Air Canada
  • Air Canada
  • 11/3
  • 1 total stop
  • 6h 45m total
  • USA to London
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA to London 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 February 2026.
Use the filters below to find and compare flights from the United States to London that are best for you.

Fly from

USA

Fly to

London

Route

Depart

Return

Price

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Wed 18/2

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

1 stop6h 45m

London

Sun 22/2

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

1 stop6h 10m

C$ 555

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 7/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Tue 12/5

5:55 p.m.-6:40 p.m.

2 stops25h 45m

C$ 660

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 19/3

8:00 a.m.-5:05 p.m.

2 stops9h 05m

London

Sun 22/3

5:10 a.m.-11:15 a.m.

1 stop6h 05m

C$ 697

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 19/3

8:00 a.m.-5:05 p.m.

2 stops9h 05m

London

Sun 22/3

5:40 p.m.-12:33 a.m.

2 stops6h 53m

C$ 717

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Tue 17/2

8:43 p.m.-5:05 p.m.

2 stops20h 22m

London

Fri 20/2

9:25 a.m.-6:22 p.m.

2 stops8h 57m

C$ 717

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Wed 18/2

7:10 a.m.-5:05 p.m.

2 stops9h 55m

London

Sun 22/2

5:40 p.m.-12:43 a.m.

2 stops7h 03m

C$ 717

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 1/4

4:15 p.m.-9:18 p.m.

1 stop4h 03m

London

Wed 15/4

9:25 a.m.-1:05 p.m.

1 stop4h 40m

C$ 762

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

3:50 p.m.-9:38 p.m.

1 stop4h 48m

London

Tue 26/5

9:30 a.m.-2:55 p.m.

1 stop6h 25m

C$ 772

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 7/5

2:15 p.m.-9:38 p.m.

1 stop6h 23m

London

Tue 12/5

12:20 p.m.-4:59 p.m.

1 stop5h 39m

C$ 772

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

3:50 p.m.-9:38 p.m.

1 stop4h 48m

London

Thu 28/5

12:20 p.m.-8:08 p.m.

2 stops8h 48m

C$ 783

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 60 results
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Best time to book a flight from USA to London

Have a flexible travel schedule? Discover the best time to fly to London from USA 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 the United States to London

What is the cheapest month to book a flight from USA to London, Ontario?

Currently, March is the cheapest month in which you can book a flight from USA to London, Ontario (average of C$ 72). Flying from USA to London, Ontario in August is currently the most expensive (average of C$ 153). 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.

Related info for your journey

Find useful and relevant information for your journey from USA to London. 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 into for flights to London from United States?

    London (YXU), located 8.6 km from the city centre, is the airport you fly into when you book flights from United States to London.

  • How long is the flight from USA to London, Ontario?

    Airlines like Air Canada, United Airlines, and WestJet fly from USA to London, Ontario in about 6h 45m. The time it takes to get you to your destination can typically vary by up to 15h 25m. USA and London, Ontario are separated by a distance of 1622 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from USA to London, Ontario?

    The most popular route from USA to London, Ontario is Atlanta Hartsfield-Jackson - London. You may also consider Dallas/Fort Worth - London or Chicago O'Hare Intl - London.

  • Can I find deals for flights from USA to London that include hotel bookings?

    Yes. In addition to deals on USA to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to London.

  • Can I find deals for business class flights from USA to London?

    Yes. Cheapflights offers flight deals from USA to London 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 USA to London, Ontario?

    Currently, March is the cheapest month in which you can book a flight from USA to London, Ontario (average of C$ 72). Flying from USA to London, Ontario in August is currently the most expensive (average of C$ 153). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

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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 USA to London?

Deals for USA to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from USA to London?

Cheapflights simply makes it quick and affordable to book flights from USA to London 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 USA to London with no change fees?

Yes, we can. To see specific flights from USA to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from USA to London become cheaper?

Yes, Cheapflights offers price alerts on USA to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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