Find flights
When to book
FAQs

Cheap flights from the United States to London, ON from C$ 267

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
26 Jan — 2 Feb1
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 27 December 2025.

Mon 29/1211:15 a.m.ORD - YXU
1 stop4h 50mUnited Airlines
Sat 3/15:10 a.m.YXU - ORD
2 stops10h 05mUnited Airlines
Deal found 25/12C$ 1,546
Mon 29/1211:15 a.m.ORD - YXU
1 stop4h 50mAir Canada
Sat 3/15:10 a.m.YXU - ORD
1 stop11h 00mAir Canada
Deal found 25/12C$ 1,558
Wed 31/126:30 a.m.DCA - YXU
2 stops10h 35mUnited Airlines
Sat 3/15:10 a.m.YXU - DCA
1 stop3h 45mUnited Airlines
Deal found 27/12C$ 1,569
Wed 31/126:59 a.m.DCA - YXU
1 stop14h 22mAir Canada
Sat 3/15:10 a.m.YXU - DCA
1 stop3h 45mAir Canada
Deal found 27/12C$ 1,590
Sat 27/128:30 p.m.ORD - YXU
1 stop11h 16mAir Canada
Mon 29/129:25 a.m.YXU - ORD
1 stop4h 36mAir Canada
Deal found 27/12C$ 2,242

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 27 December 2025.

Round-trip from

C$ 373

One-way from

C$ 267
WestJet
  • WestJet
  • 8/2-15/2
  • 3 total stops
  • 36h 49m total
  • USA to London
Search Deals
28/1
  • 28/1
  • 3 total stops
  • 41h 34m 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 27 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

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 10/2

5:45 a.m.-9:21 p.m.

2 stops12h 36m

London

Tue 17/2

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 373

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 29/1

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

2 stops9h 46m

London

Sun 1/2

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 373

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

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

1 stop10h 42m

London

Thu 28/5

8:00 p.m.-4:43 p.m.

1 stop21h 43m

C$ 379

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 8/2

8:10 a.m.-9:21 p.m.

1 stop10h 11m

London

Sun 15/2

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 399

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 9/1

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

2 stops9h 46m

London

Tue 13/1

9:50 a.m.-10:16 p.m.

1 stop15h 26m

C$ 406

AtlantaLondon

ATL - YXU

ATLYXU

Atlanta Hartsfield-Jackson

Mon 9/2

8:25 a.m.-6:35 a.m.

2 stops22h 10m

London

Mon 16/2

8:10 p.m.-6:53 a.m.

1 stop10h 43m

C$ 422

MinneapolisLondon

MSP - YXU

MSPYXU

Minneapolis St Paul

Mon 9/2

1:55 p.m.-6:35 a.m.

2 stops15h 40m

London

Mon 16/2

8:10 p.m.-1:06 p.m.

2 stops17h 56m

C$ 454

MinneapolisLondon

MSP - YXU

MSPYXU

Minneapolis St Paul

Thu 26/2

1:55 p.m.-6:35 a.m.

2 stops15h 40m

London

Sun 1/3

8:10 p.m.-1:06 p.m.

2 stops17h 56m

C$ 465

MinneapolisLondon

MSP - YXU

MSPYXU

Minneapolis St Paul

Thu 19/2

1:55 p.m.-6:35 a.m.

2 stops15h 40m

London

Sun 22/2

8:10 p.m.-1:06 p.m.

2 stops17h 56m

C$ 480

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 9/2

2:20 p.m.-6:35 a.m.

1 stop15h 15m

London

Mon 16/2

8:10 p.m.-10:30 a.m.

2 stops15h 20m

C$ 511

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/12

Showing 1-10 of 41 results
1
2
3
...
5

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.

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 27 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 21% versus a flight in the morning.

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 and WestJet fly from USA to London, Ontario in about 12h 36m. The time it takes to get you to your destination can typically vary by up to 9h 34m. USA and London, Ontario are separated by a distance of 3219 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 Minneapolis St Paul - 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

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 Pierre Elliott Trudeau Intl flights
Vancouver Intl to Toronto Island flights
Vancouver Intl to Hamilton flights
LaGuardia to Pearson Intl flights
Newark to Toronto Island flights
Newark to Pearson Intl flights
John F Kennedy Intl to Pearson Intl flights
Abbotsford to Pearson Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Newark to Pierre Elliott Trudeau Intl flights
Vancouver Intl to Ottawa flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Calgary to Pearson Intl flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Edmonton to Pearson Intl flights
Halifax to Toronto Island flights
Mexico City to Pearson Intl flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Winnipeg to Pearson Intl flights
Halifax to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Mexico City to Pierre Elliott Trudeau Intl flights
Calgary to Toronto Island flights
Reagan-National to Pearson Intl flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Calgary to Hamilton flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
Boston to Pearson Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Halifax to Pierre Elliott Trudeau Intl flights
Calgary to Region of Waterloo Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Boston to Toronto Island flights
Vancouver Intl to Region of Waterloo Intl flights
O'Hare Intl to Pearson Intl flights
Edmonton to Toronto Island flights
Dallas/Fort Worth to Pearson Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Atlanta to Pearson Intl flights
Halifax to Hamilton flights
San Francisco to Pearson Intl flights
Winnipeg to Toronto Island flights
Winnipeg to Pierre Elliott Trudeau Intl flights
Abbotsford to Pierre Elliott Trudeau Intl flights
Edmonton to Hamilton 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.