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Cheap flights from the United States to London, ON from C$ 209

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
17 janv. — 24 janv.1
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 18 décembre 2025.

ven. 26/1210:20 a.m.MCO - YXU
1 stop6h 45mAir Canada
lun. 29/125:10 a.m.YXU - MCO
2 stops9h 02mAir Canada
Deal found 15/12C$ 605
ven. 26/129:26 a.m.MCO - YXU
2 stops11h 55mUnited Airlines
lun. 29/125:10 a.m.YXU - MCO
2 stops16h 49mUnited Airlines
Deal found 15/12C$ 747
sam. 20/129:50 p.m.MCO - YXU
1 stop10h 56mAir Canada
sam. 10/19:50 a.m.YXU - MCO
1 stop5h 15mAir Canada
Deal found 16/12C$ 752
sam. 20/121:53 p.m.MCO - YXU
2 stops18h 53mUnited Airlines
sam. 10/19:50 a.m.YXU - MCO
2 stops8h 31mUnited Airlines
Deal found 16/12C$ 1,075
lun. 29/1210:00 a.m.ORD - YXU
1 stop6h 05mAir Canada
sam. 3/19:25 a.m.YXU - ORD
1 stop6h 45mAir Canada
Deal found 16/12C$ 1,327
dim. 28/1211:30 a.m.LGA - YXU
1 stop5h 35mUnited Airlines
sam. 3/15:10 a.m.YXU - LGA
1 stop5h 33mUnited Airlines
Deal found 17/12C$ 1,343
lun. 29/121:24 p.m.ORD - YXU
2 stops6h 57mUnited Airlines
sam. 3/15:10 a.m.YXU - ORD
2 stops10h 05mUnited Airlines
Deal found 16/12C$ 1,361
mer. 17/125:20 p.m.EWR - YXU
1 stop4h 01mUnited Airlines
dim. 21/125:10 a.m.YXU - EWR
1 stop4h 08mUnited Airlines
Deal found 16/12C$ 1,973
jeu. 18/1211:11 a.m.SAN - YXU
3 stops49h 24mMultiple Airlines
jeu. 25/128:10 p.m.YXU - SAN
1 stop18h 35mMultiple Airlines
Deal found 16/12C$ 2,185
jeu. 18/1212:40 p.m.SAN - YXU
1 stop17h 06mAir Canada
jeu. 25/125:10 a.m.YXU - SAN
1 stop9h 43mAir Canada
Deal found 16/12C$ 2,206
jeu. 18/125:40 p.m.SAN - YXU
3 stops20h 25mUnited Airlines
jeu. 25/125:10 a.m.YXU - SAN
2 stops17h 47mUnited Airlines
Deal found 16/12C$ 2,417

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 18 décembre 2025.

Round-trip from

C$ 433

One-way from

C$ 209
WestJet
  • WestJet
  • 12/1-15/1
  • 2 total stops
  • 33h 39m total
  • USA to London
Search Deals
13/1
  • 13/1
  • 3 total stops
  • 31h 03m 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 18 décembre 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

lun. 12/1

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

1 stop15h 14m

London

jeu. 15/1

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

1 stop18h 25m

C$ 433

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

mar. 21/4

8:45 a.m.-9:18 p.m.

1 stop9h 33m

London

sam. 25/4

5:10 a.m.-10:45 a.m.

1 stop8h 35m

C$ 455

San DiegoLondon

SAN - YXU

SANYXU

San Diego

jeu. 29/1

8:34 a.m.-6:34 a.m.

2 stops19h 00m

London

jeu. 5/2

8:10 p.m.-11:47 a.m.

1 stop18h 37m

C$ 579

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

lun. 12/1

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

1 stop15h 14m

London

jeu. 15/1

8:10 p.m.-6:43 p.m.

2 stops23h 33m

C$ 598

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

jeu. 15/1

1:00 p.m.-6:34 a.m.

1 stop14h 34m

London

lun. 19/1

8:10 p.m.-12:12 p.m.

1 stop19h 02m

C$ 605

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

ven. 22/5

7:45 a.m.-5:33 p.m.

2 stops9h 48m

London

dim. 24/5

9:30 a.m.-3:45 p.m.

1 stop6h 15m

C$ 605

San DiegoLondon

SAN - YXU

SANYXU

San Diego

jeu. 15/1

6:05 p.m.-8:46 a.m.

2 stops11h 41m

London

dim. 18/1

5:10 a.m.-11:53 a.m.

1 stop9h 43m

C$ 616

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

ven. 30/1

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

1 stop4h 55m

London

ven. 6/2

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

1 stop6h 05m

C$ 646

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

dim. 1/2

9:46 p.m.-6:35 a.m.

3 stops32h 49m

London

dim. 8/2

8:10 p.m.-11:58 p.m.

2 stops27h 48m

C$ 678

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

sam. 31/1

10:00 p.m.-8:46 a.m.

1 stop10h 46m

London

sam. 7/2

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

1 stop6h 10m

C$ 693

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

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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$ 73). Flying from USA to London, Ontario in August is currently the most expensive (average of C$ 157). 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 18 décembre 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 WestJet, Air Canada, and Delta fly from USA to London, Ontario in about 9h 33m. The time it takes to get you to your destination can typically vary by up to 7h 34m. 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 Seattle/Tacoma Intl - London or Washington, D.C. Dulles 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$ 73). Flying from USA to London, Ontario in August is currently the most expensive (average of C$ 157). 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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Alternative routes for USA to London

See prices for flight routes from nearby airports that may be better suited for you.
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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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