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Cheap flights from the United States to London, ON from C$ 220

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap flight deals from USA to London

Keep the following information in mind while searching for USA to London flight deals. Data was last updated 15 September 2025.

Round-trip from

C$ 539

One-way from

C$ 220
9/10-15/10
  • 9/10-15/10
  • 3 total stops
  • 42h 13m total
  • USA to London
Search Deals
23/10
  • 23/10
  • 2 total stops
  • 20h 39m total
  • USA to London
Search Deals

Find flight deals from USA to London

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 15 September 2025.

Thu 9/105:30 p.m.ORD - YXU
1 stop10h 42mMultiple Airlines
Wed 15/106:00 a.m.YXU - ORD
2 stops31h 31mMultiple Airlines
Deal found 15/9C$ 539
Fri 12/1210:20 a.m.MCO - YXU
1 stop6h 45mAir Canada
Tue 16/125:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Deal found 13/9C$ 550
Wed 29/105:35 p.m.JFK - YXU
1 stop25h 37mWestJet
Wed 5/118:00 p.m.YXU - JFK
1 stop20h 37mWestJet
Deal found 14/9C$ 554
Tue 14/107:00 a.m.MCO - YXU
1 stop8h 02mAir Canada
Tue 21/106:15 a.m.YXU - MCO
1 stop5h 18mAir Canada
Deal found 14/9C$ 583
Tue 7/103:50 p.m.MCO - YXU
1 stop5h 37mAir Canada
Sat 11/103:40 p.m.YXU - MCO
1 stop8h 08mAir Canada
Deal found 14/9C$ 612
Thu 30/1010:20 a.m.MCO - YXU
1 stop6h 46mAir Canada
Thu 6/115:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Deal found 15/9C$ 616
Fri 31/108:30 a.m.MCO - YXU
2 stops8h 36mAir Canada
Tue 4/115:40 p.m.YXU - MCO
1 stop5h 50mAir Canada
Deal found 15/9C$ 631
Thu 16/105:30 p.m.JFK - YXU
1 stop11h 42mMultiple Airlines
Thu 23/108:00 p.m.YXU - JFK
2 stops38h 03mMultiple Airlines
Deal found 14/9C$ 633
Sun 2/118:50 p.m.MCO - YXU
1 stop11h 56mAir Canada
Sat 8/119:25 a.m.YXU - MCO
1 stop5h 45mAir Canada
Deal found 13/9C$ 634
Sat 11/105:30 p.m.JFK - YXU
1 stop11h 42mWestJet
Sun 19/106:00 a.m.YXU - JFK
1 stop10h 32mWestJet
Deal found 14/9C$ 638
Thu 30/101:26 p.m.ORD - YXU
2 stops28h 46mMultiple Airlines
Thu 6/118:10 p.m.YXU - ORD
1 stop18h 25mMultiple Airlines
Deal found 15/9C$ 641
Wed 15/105:30 p.m.JFK - YXU
1 stop11h 42mWestJet
Wed 22/106:00 a.m.YXU - JFK
1 stop10h 32mWestJet
Deal found 15/9C$ 652

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 15 September 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

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 9/10

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

1 stop10h 42m

London

Wed 15/10

6:00 a.m.-12:31 p.m.

2 stops31h 31m

C$ 539

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 12/12

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

1 stop6h 45m

London

Tue 16/12

5:40 p.m.-11:30 p.m.

1 stop5h 50m

C$ 550

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 5/2

4:15 p.m.-9:21 p.m.

1 stop5h 06m

London

Mon 9/2

5:45 a.m.-11:15 a.m.

1 stop5h 30m

C$ 550

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Tue 28/10

10:20 a.m.-5:06 p.m.

1 stop6h 46m

London

Tue 4/11

5:40 p.m.-11:30 p.m.

1 stop5h 50m

C$ 550

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Tue 20/1

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

1 stop6h 45m

London

Mon 16/2

9:25 a.m.-3:15 p.m.

1 stop5h 50m

C$ 550

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 31/10

4:20 p.m.-9:21 p.m.

1 stop5h 01m

London

Tue 4/11

5:45 a.m.-11:15 a.m.

1 stop5h 30m

C$ 550

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Wed 29/10

5:35 p.m.-7:12 p.m.

1 stop25h 37m

London

Wed 5/11

8:00 p.m.-4:37 p.m.

1 stop20h 37m

C$ 554

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Thu 16/10

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

1 stop11h 42m

London

Thu 23/10

8:00 p.m.-10:03 a.m.

2 stops38h 03m

C$ 633

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Sat 11/10

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

1 stop11h 42m

London

Sun 19/10

6:00 a.m.-4:32 p.m.

1 stop10h 32m

C$ 638

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 30/10

1:26 p.m.-7:12 p.m.

2 stops28h 46m

London

Thu 6/11

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

1 stop18h 25m

C$ 641

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

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, October is the cheapest month in which you can book a flight from USA to London, Ontario (average of C$ 243). Flying from USA to London, Ontario in December is currently the most expensive (average of C$ 478). 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 15 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to London, Ontario as you normally would.

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 6h 45m. The time it takes to get you to your destination can typically vary by up to 18h 52m. 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 cheapest airlines to fly from USA to London, Ontario one-way?

    C$ 257 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from C$ 280 and C$ 431, respectively.

  • 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 Washington, D.C. Reagan-National - 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, October is the cheapest month in which you can book a flight from USA to London, Ontario (average of C$ 243). Flying from USA to London, Ontario in December is currently the most expensive (average of C$ 478). 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
Grand Bend
Port Stanley

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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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