Find flights
When to book
FAQs

Cheap flights from the United States to London, ON from C$ 213

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
2 Jan — 9 Jan1
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 3 December 2025.

Tue 16/124:05 p.m.MCO - YXU
1 stop5h 16mAir Canada
Tue 23/125:10 a.m.YXU - MCO
1 stop15h 40mAir Canada
Deal found 1/12C$ 672
Sat 27/128:00 a.m.EWR - YXU
1 stop9h 05mAir Canada
Sat 3/19:25 a.m.YXU - EWR
1 stop4h 15mAir Canada
Deal found 30/11C$ 701
Sat 27/1210:10 a.m.LGA - YXU
1 stop6h 55mAir Canada
Sat 3/15:10 a.m.YXU - LGA
1 stop5h 33mAir Canada
Deal found 30/11C$ 701
Sun 28/122:00 p.m.ORD - YXU
1 stop6h 21mAir Canada
Fri 2/19:25 a.m.YXU - ORD
1 stop6h 45mAir Canada
Deal found 3/12C$ 890
Tue 30/123:55 p.m.ORD - YXU
1 stop4h 26mAir Canada
Tue 6/19:50 a.m.YXU - ORD
1 stop4h 11mAir Canada
Deal found 1/12C$ 894
Mon 29/124:20 p.m.LGA - YXU
1 stop5h 01mAir Canada
Mon 5/15:10 a.m.YXU - LGA
1 stop5h 33mAir Canada
Deal found 1/12C$ 896
Fri 26/124:30 p.m.EWR - YXU
1 stop4h 51mAir Canada
Sat 3/19:25 a.m.YXU - EWR
1 stop4h 15mAir Canada
Deal found 1/12C$ 912
Fri 26/124:20 p.m.LGA - YXU
1 stop5h 01mAir Canada
Sat 3/15:10 a.m.YXU - LGA
1 stop5h 33mAir Canada
Deal found 1/12C$ 912
Sun 28/124:20 p.m.LGA - YXU
1 stop5h 01mAir Canada
Sun 4/15:10 a.m.YXU - LGA
2 stops6h 47mAir Canada
Deal found 1/12C$ 924
Sun 28/129:05 a.m.EWR - YXU
1 stop8h 00mAir Canada
Sun 4/15:40 p.m.YXU - EWR
1 stop5h 08mAir Canada
Deal found 1/12C$ 944
Tue 30/125:10 p.m.SAN - YXU
2 stops20h 55mUnited Airlines
Tue 6/15:10 a.m.YXU - SAN
1 stop9h 43mUnited Airlines
Deal found 2/12C$ 965
Tue 9/121:25 p.m.DEN - YXU
1 stop5h 56mAir Canada
Thu 11/125:10 a.m.YXU - DEN
1 stop7h 13mAir Canada
Deal found 30/11C$ 975

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 3 December 2025.

Round-trip from

C$ 386

One-way from

C$ 213
Air Canada
  • Air Canada
  • 20/1-22/1
  • 3 total stops
  • 20h 30m total
  • USA to London
Search Deals
11/1
  • 11/1
  • 2 total stops
  • 31h 20m 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 3 December 2025.
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

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 20/1

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

2 stops11h 46m

London

Thu 22/1

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

1 stop8h 44m

C$ 386

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 23/1

8:30 a.m.-9:20 p.m.

2 stops12h 50m

London

Tue 27/1

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

1 stop6h 10m

C$ 483

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 12/1

2:20 p.m.-6:34 a.m.

1 stop15h 14m

London

Sun 18/1

8:10 p.m.-1:35 p.m.

1 stop18h 25m

C$ 550

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 19/1

12:43 a.m.-5:05 p.m.

2 stops13h 22m

London

Thu 22/1

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

1 stop8h 44m

C$ 576

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 12/1

4:49 p.m.-6:34 a.m.

2 stops36h 45m

London

Sun 18/1

8:10 p.m.-1:35 p.m.

1 stop18h 25m

C$ 596

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 14/5

3:40 p.m.-9:27 p.m.

1 stop5h 47m

London

Sun 17/5

9:55 a.m.-3:00 p.m.

1 stop5h 05m

C$ 602

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 16/1

8:30 a.m.-5:05 p.m.

2 stops8h 35m

London

Tue 20/1

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

1 stop6h 05m

C$ 614

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 15/1

11:20 a.m.-6:34 a.m.

2 stops19h 14m

London

Thu 22/1

8:10 p.m.-6:00 p.m.

2 stops21h 50m

C$ 616

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 15/1

12:10 p.m.-5:05 p.m.

1 stop4h 55m

London

Thu 22/1

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

1 stop6h 10m

C$ 632

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Tue 13/1

4:50 p.m.-9:21 p.m.

1 stop4h 31m

London

Tue 20/1

9:50 a.m.-4:09 p.m.

1 stop6h 19m

C$ 667

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 60 results
1
2
3
...
6

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$ 74). Flying from USA to London, Ontario in August is currently the most expensive (average of C$ 160). 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 US to YXU?

Find hourly flight availability from USA to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 December 2025.

When flying from USA to London, Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight in the afternoon.

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, WestJet, and United Airlines fly from USA to London, Ontario in about 11h 46m. The time it takes to get you to your destination can typically vary by up to 3h 28m. USA and London, Ontario are separated by a distance of 3508 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 Newark - London. You may also consider New York LaGuardia - London or New York John F Kennedy 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$ 74). Flying from USA to London, Ontario in August is currently the most expensive (average of C$ 160). 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

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 USA to London

See prices for flight routes from nearby airports that may be better suited for you.
Vancouver Intl to Pearson Intl flights
Vancouver Intl to Hamilton flights
Vancouver Intl to Pierre Elliott Trudeau Intl flights
Abbotsford to Pearson Intl flights
John F Kennedy Intl to Pearson Intl flights
Vancouver Intl to Toronto Island flights
Newark to Pearson Intl flights
Newark to Toronto Island flights
LaGuardia to Pearson Intl flights
Newark to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Winnipeg to Pearson Intl flights
Edmonton to Pearson Intl flights
Mexico City to Pearson Intl flights
Calgary to Pearson Intl flights
Halifax to Pearson Intl flights
Halifax to Toronto Island flights
Mexico City to Pierre Elliott Trudeau Intl flights
Vancouver Intl to Ottawa flights
Boston to Pearson Intl flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Calgary to Hamilton flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Calgary to Toronto Island flights
Dulles Intl to Pearson Intl flights
Reagan-National to Pearson Intl flights
Halifax to Hamilton flights
Los Angeles to Pearson Intl flights
Toronto Island to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pearson Intl flights
Winnipeg to Toronto Island flights
Edmonton to Hamilton flights
Victoria to Pearson Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Halifax to Region of Waterloo Intl flights
San Francisco to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Halifax to Ottawa flights
Calgary to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pearson Intl flights
Halifax to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Edmonton to Toronto Island flights
Atlanta to Pearson Intl flights
Vancouver Intl to Region of Waterloo Intl flights
Los Angeles to Pierre Elliott Trudeau Intl 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 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.

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.