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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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

C$ 422

One-way from

C$ 253
WestJet
  • WestJet
  • 8/10-15/10
  • 2 total stops
  • 22h 17m total
  • USA to London
Search Deals
Air Canada
  • Air Canada
  • 16/8
  • 2 total stops
  • 8h 32m 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 3 July 2025.

Wed 8/105:15 p.m.ATL - YXU
1 stop11h 57mWestJet
Wed 15/106:00 a.m.YXU - ATL
1 stop10h 20mWestJet
Deal found 2/7C$ 422
Sat 16/812:55 p.m.TPA - YXU
2 stops8h 32mAir Canada
Sat 23/89:55 a.m.YXU - TPA
1 stop5h 58mAir Canada
Deal found 2/7C$ 487
Mon 8/96:45 p.m.IAD - YXU
1 stop10h 27mWestJet
Mon 22/96:00 a.m.YXU - IAD
1 stop11h 50mWestJet
Deal found 3/7C$ 514
Sun 17/89:00 a.m.EWR - YXU
2 stops6h 02mAir Canada
Sun 24/86:15 a.m.YXU - EWR
1 stop3h 55mAir Canada
Deal found 3/7C$ 597
Sun 17/88:45 a.m.LGA - YXU
2 stops6h 17mAir Canada
Sun 24/89:55 a.m.YXU - LGA
1 stop3h 34mAir Canada
Deal found 3/7C$ 597
Sat 16/83:50 p.m.ORD - YXU
1 stop4h 37mAir Canada
Sat 23/89:55 a.m.YXU - ORD
1 stop4h 18mAir Canada
Deal found 2/7C$ 600
Sun 17/85:30 p.m.ORD - YXU
1 stop10h 44mWestJet
Sun 24/88:00 p.m.YXU - ORD
1 stop21h 44mWestJet
Deal found 2/7C$ 611
Thu 14/88:00 a.m.MCO - YXU
2 stops9h 07mAir Canada
Thu 21/86:15 a.m.YXU - MCO
1 stop5h 15mAir Canada
Deal found 2/7C$ 615
Fri 12/95:30 p.m.JFK - YXU
1 stop11h 42mWestJet
Sat 13/98:00 p.m.YXU - JFK
1 stop20h 32mWestJet
Deal found 2/7C$ 627
Thu 14/85:30 p.m.ORD - YXU
1 stop10h 44mMultiple Airlines
Sun 17/86:00 a.m.YXU - ORD
2 stops37h 18mMultiple Airlines
Deal found 3/7C$ 658
Fri 3/105:30 p.m.JFK - YXU
1 stop11h 42mMultiple Airlines
Thu 9/106:00 a.m.YXU - JFK
2 stops18h 33mMultiple Airlines
Deal found 2/7C$ 661
Fri 15/89:00 a.m.TPA - YXU
2 stops12h 27mUnited Airlines
Fri 22/86:15 a.m.YXU - TPA
2 stops8h 47mUnited Airlines
Deal found 30/6C$ 665

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 July 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

AtlantaLondon

ATL - YXU

ATLYXU

Atlanta Hartsfield-Jackson

Wed 8/10

5:15 p.m.-5:12 a.m.

1 stop11h 57m

London

Wed 15/10

6:00 a.m.-4:20 p.m.

1 stop10h 20m

C$ 422

TampaLondon

TPA - YXU

TPAYXU

Tampa

Sat 16/8

12:55 p.m.-9:27 p.m.

2 stops8h 32m

London

Sat 23/8

9:55 a.m.-3:53 p.m.

1 stop5h 58m

C$ 487

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Mon 8/9

6:45 p.m.-5:12 a.m.

1 stop10h 27m

London

Mon 22/9

6:00 a.m.-5:50 p.m.

1 stop11h 50m

C$ 514

NewarkLondon

EWR - YXU

EWRYXU

Newark

Sun 17/8

9:00 a.m.-3:02 p.m.

2 stops6h 02m

London

Sun 24/8

6:15 a.m.-10:10 a.m.

1 stop3h 55m

C$ 597

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Sun 17/8

8:45 a.m.-3:02 p.m.

2 stops6h 17m

London

Sun 24/8

9:55 a.m.-1:29 p.m.

1 stop3h 34m

C$ 597

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 16/8

3:50 p.m.-9:27 p.m.

1 stop4h 37m

London

Sat 23/8

9:55 a.m.-1:13 p.m.

1 stop4h 18m

C$ 600

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 17/8

5:30 p.m.-5:14 a.m.

1 stop10h 44m

London

Sun 24/8

8:00 p.m.-4:44 p.m.

1 stop21h 44m

C$ 611

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 14/8

8:00 a.m.-5:07 p.m.

2 stops9h 07m

London

Thu 21/8

6:15 a.m.-11:30 a.m.

1 stop5h 15m

C$ 615

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Fri 12/9

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

1 stop11h 42m

London

Sat 13/9

8:00 p.m.-4:32 p.m.

1 stop20h 32m

C$ 627

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 14/8

5:30 p.m.-5:14 a.m.

1 stop10h 44m

London

Sun 17/8

6:00 a.m.-6:18 p.m.

2 stops37h 18m

C$ 658

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 46 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 3 July 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.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 3 July 2025.
Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from the United States to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,845 reviews
Delta
8.0
Very good
7,970 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,917 reviews
Delta
8.0
Very good
7,970 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,678 reviews
Delta
8.0
Very good
7,970 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from USA to London, Ontario one-way?

    C$ 253 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and WestJet, with prices starting from C$ 406 and C$ 604, respectively.

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

    The most popular route from USA to London, Ontario is Washington, D.C. Dulles Intl - London. You may also consider Newark - London or Orlando - 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 the United States?

Book flights to the United States if you plan to visit one of these locations
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Alternative routes for USA to London

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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.

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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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