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

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $212. However, be on the lookout for offers from United Airlines and WestJet, as they are both options that can get you from USA to London, Ontario for a low price.

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

The most popular flight routes from USA to London, Ontario are Seattle/Tacoma Intl - London, Newark - London and New York John F Kennedy Intl - London.

What airport do you fly into for flights to London from United States?

London (YXU) is the airport you will fly into if you book a flight from United States to London. It is only a 5.3 mi journey from London (YXU) to London’s city center.

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.

$530+ Flights from the United States to London, ON - Compare & Save Big

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from USA to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from USA to London

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$260 (Gotogate)
One-way from	$194 (Kiwi.com)

Provider with most accurate pricing for New York (NYC)-London flight deals.

Search Deals

Provider most trusted by Cheapflights users for New York (NYC)-London flights.

Search Deals

From USA to London

Search Deals

One-way flight from 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 May 1, 2025.

Sat 6/142:55 pmSEA - YXU

3 stops15h 24mAir Canada

Sat 6/216:15 amYXU - SEA

1 stop7h 36mAir Canada

Deal found 4/30

$260

Thu 5/298:25 amSEA - YXU

1 stop7h 45mWestJet

Thu 7/178:00 pmYXU - SEA

1 stop25h 38mWestJet

Deal found 4/30

$295

Thu 6/127:05 amSEA - YXU

1 stop19h 09mMultiple Airlines

Thu 6/196:15 amYXU - SEA

1 stop7h 36mMultiple Airlines

Deal found 4/30

$307

Fri 6/1311:50 pmSEA - YXU

2 stops12h 08mUnited Airlines

Fri 6/206:15 amYXU - SEA

1 stop7h 36mUnited Airlines

Deal found 4/30

$318

Mon 6/23:04 pmEWR - YXU

2 stops6h 24mAir Canada

Wed 6/116:15 amYXU - EWR

1 stop3h 53mAir Canada

Deal found 4/30

$471

Mon 6/24:45 pmLGA - YXU

1 stop4h 43mAir Canada

Wed 6/116:15 amYXU - LGA

1 stop4h 36mAir Canada

Deal found 4/30

$474

Fri 6/139:45 pmORD - YXU

2 stops16h 14mAir Canada

Fri 6/206:15 amYXU - ORD

1 stop3h 54mAir Canada

Deal found 4/30

$498

Fri 5/166:59 pmORD - YXU

2 stops23h 11mMultiple Airlines

Fri 5/306:00 amYXU - ORD

2 stops25h 42mMultiple Airlines

Deal found 4/29

$502

Mon 6/29:55 pmEWR - YXU

2 stops35h 24mMultiple Airlines

Wed 6/119:55 amYXU - EWR

2 stops29h 35mMultiple Airlines

Deal found 4/30

$506

Mon 6/25:54 amLGA - YXU

2 stops33h 04mMultiple Airlines

Wed 6/113:35 pmYXU - LGA

1 stop4h 24mMultiple Airlines

Deal found 4/30

$527

Sat 6/148:35 amDFW - YXU

3 stops43h 39mMultiple Airlines

Sat 6/216:00 amYXU - DFW

3 stops19h 22mMultiple Airlines

Deal found 4/30

$554

Mon 6/26:00 amLGA - YXU

2 stops8h 58mUnited Airlines

Wed 6/113:35 pmYXU - LGA

2 stops8h 03mUnited Airlines

Deal found 4/30

$556

Best flights from USA to London
Discover carefully curated flight deals from USA to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Sat 6/142:55 pmSEA - YXU

3 stops15h 24mAir Canada

Sat 6/216:15 amYXU - SEA

1 stop7h 36mAir Canada

Deal found 4/30

$260

Fri 6/131:15 pmSEA - YXU

2 stops12h 59mMultiple Airlines

Fri 6/206:15 amYXU - SEA

1 stop7h 36mMultiple Airlines

Deal found 4/29

$282

Sat 5/318:25 amSEA - YXU

1 stop7h 45mWestJet

Sat 6/78:00 pmYXU - SEA

1 stop19h 58mWestJet

Deal found 4/30

$295

Tue 5/1311:30 amSEA - YXU

1 stop6h 59mUnited Airlines

Thu 5/156:15 amYXU - SEA

1 stop7h 30mUnited Airlines

Deal found 4/29

$308

Mon 6/23:04 pmEWR - YXU

2 stops6h 24mAir Canada

Wed 6/116:15 amYXU - EWR

1 stop3h 53mAir Canada

Deal found 4/30

$471

Fri 5/166:59 pmORD - YXU

2 stops23h 11mMultiple Airlines

Fri 5/306:00 amYXU - ORD

2 stops25h 42mMultiple Airlines

Deal found 4/29

$502

Mon 6/24:45 pmLGA - YXU

1 stop4h 43mAir Canada

Wed 6/116:15 amYXU - LGA

1 stop4h 36mAir Canada

Deal found 4/30

$474

Mon 6/26:00 amLGA - YXU

2 stops8h 58mUnited Airlines

Wed 6/113:35 pmYXU - LGA

2 stops8h 03mUnited Airlines

Deal found 4/30

$556

Mon 6/29:55 pmEWR - YXU

2 stops35h 24mMultiple Airlines

Wed 6/119:55 amYXU - EWR

2 stops29h 35mMultiple Airlines

Deal found 4/30

$506

Fri 6/139:45 pmORD - YXU

2 stops16h 14mAir Canada

Fri 6/206:15 amYXU - ORD

1 stop3h 54mAir Canada

Deal found 4/30

$498

Thu 6/511:00 amEWR - YXU

1 stop3h 58mUnited Airlines

Sun 6/83:35 pmYXU - EWR

1 stop6h 13mUnited Airlines

Deal found 4/30

$557

Mon 6/25:54 amLGA - YXU

2 stops33h 04mMultiple Airlines

Wed 6/113:35 pmYXU - LGA

1 stop4h 24mMultiple Airlines

Deal found 4/30

$527

Last-minute flights from USA to London
Discover last-minute flight deals from USA to London. Data last updated May 1, 2025 and is based on user searches.

Sat 5/1011:00 amEWR - YXU

1 stop4h 04mUnited Airlines

Mon 5/126:15 amYXU - EWR

1 stop3h 58mUnited Airlines

Deal found 4/30

$955

Sat 5/101:16 pmEWR - YXU

2 stops29h 54mWestJet

Mon 5/128:00 pmYXU - EWR

2 stops14h 49mWestJet

Deal found 4/30

$2,201

Fri 5/166:59 pmORD - YXU

2 stops23h 11mMultiple Airlines

Fri 5/306:00 amYXU - ORD

2 stops25h 42mMultiple Airlines

Deal found 4/29

$502

Sun 5/188:00 amJAX - YXU

2 stops13h 28mMultiple Airlines

Thu 5/223:45 pmYXU - JAX

1 stop5h 18mMultiple Airlines

Deal found 4/30

$629

Sun 5/186:32 amJAX - YXU

2 stops8h 31mUnited Airlines

Thu 5/229:55 amYXU - JAX

2 stops13h 19mUnited Airlines

Deal found 4/30

$668

Thu 5/229:00 amEWR - YXU

1 stop6h 03mUnited Airlines

Sun 5/253:45 pmYXU - EWR

1 stop4h 03mUnited Airlines

Deal found 4/29

$617

Fri 5/239:31 pmORD - YXU

2 stops16h 32mUnited Airlines

Fri 5/306:15 amYXU - ORD

1 stop6h 46mUnited Airlines

Deal found 4/29

$596

Fri 5/238:25 pmORD - YXU

1 stop11h 53mAir Canada

Fri 5/309:55 amYXU - ORD

1 stop4h 00mAir Canada

Deal found 4/29

$610

Wed 5/2812:35 pmSEA - YXU

3 stops23h 28mUnited Airlines

Wed 6/46:15 amYXU - SEA

1 stop7h 36mUnited Airlines

Deal found 4/30

$323

Thu 5/298:25 amSEA - YXU

1 stop7h 45mWestJet

Thu 7/178:00 pmYXU - SEA

1 stop25h 38mWestJet

Deal found 4/30

$295

Thu 5/297:17 amBWI - YXU

2 stops21h 57mMultiple Airlines

Sun 6/18:00 pmYXU - BWI

3 stops34h 10mMultiple Airlines

Deal found 4/30

$578

Thu 5/2912:49 pmIAD - YXU

3 stops16h 25mMultiple Airlines

Sun 6/18:00 pmYXU - IAD

1 stop21h 54mMultiple Airlines

Deal found 4/30

$586

One-way flights from USA to London
Search for one-way flight options from USA to London. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Tue 6/175:30 pmORD - YXU

2 stops26h 30mMultiple Airlines

Deal found 4/29

$194

Tue 6/1710:00 amORD - YXU

1 stop3h 59mAir Canada

Deal found 4/29

$212

Mon 6/24:30 pmEWR - YXU

1 stop4h 58mAir Canada

Deal found 4/30

$259

Mon 6/24:45 pmLGA - YXU

1 stop4h 43mAir Canada

Deal found 4/30

$259

Mon 6/26:25 amLGA - YXU

2 stops15h 03mUnited Airlines

Deal found 4/30

$268

Sat 5/105:30 pmORD - YXU

1 stop24h 40mWestJet

Deal found 4/29

$328

Mon 6/26:55 amJFK - YXU

1 stop14h 33mAir Canada

Deal found 4/30

$330

Sat 6/1411:19 amBWI - YXU

2 stops10h 09mUnited Airlines

Deal found 4/29

$392

Tue 5/64:13 pmLGA - YXU

2 stops26h 57mWestJet

Deal found 4/30

$562

Tue 5/67:55 pmEWR - YXU

1 stop25h 34mMultiple Airlines

Deal found 4/30

$563

Tue 5/610:45 amJFK - YXU

2 stops32h 25mMultiple Airlines

Deal found 4/30

$856

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United States to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 6/14

2:55 pm-9:19 am

3 stops15h 24m

London

Sat 6/21

6:15 am-10:51 am

1 stop7h 36m

$260

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 5/29

8:25 am-7:10 pm

1 stop7h 45m

London

Thu 7/17

8:00 pm-6:38 pm

1 stop25h 38m

$295

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Thu 6/12

7:05 am-5:14 am

1 stop19h 09m

London

Thu 6/19

6:15 am-10:51 am

1 stop7h 36m

$307

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 6/13

11:50 pm-2:58 pm

2 stops12h 08m

London

Fri 6/20

6:15 am-10:51 am

1 stop7h 36m

$318

NewarkLondon

EWR - YXU

EWRYXU

Newark

Mon 6/2

3:04 pm-9:28 pm

2 stops6h 24m

London

Wed 6/11

6:15 am-10:08 am

1 stop3h 53m

$471

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Mon 6/2

4:45 pm-9:28 pm

1 stop4h 43m

London

Wed 6/11

6:15 am-10:51 am

1 stop4h 36m

$474

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 6/13

9:45 pm-2:59 pm

2 stops16h 14m

London

Fri 6/20

6:15 am-9:09 am

1 stop3h 54m

$498

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 5/16

6:59 pm-7:10 pm

2 stops23h 11m

London

Fri 5/30

6:00 am-6:42 am

2 stops25h 42m

$502

NewarkLondon

EWR - YXU

EWRYXU

Newark

Mon 6/2

9:55 pm-9:19 am

2 stops35h 24m

London

Wed 6/11

9:55 am-3:30 pm

2 stops29h 35m

$506

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Mon 6/2

5:54 am-2:58 pm

2 stops33h 04m

London

Wed 6/11

3:35 pm-7:59 pm

1 stop4h 24m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 43 results

...

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 time of day to fly from US to YXU?

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.

Rainfall in London by month

In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

Temperature in London by month

If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from USA to London, such as United Airlines, WestJet and Air Canada. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,696 reviews

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

WestJet

7.2

Good

2,826 reviews

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.0

Good

9,252 reviews

United Airlines

7.4

Good

8,696 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What airport do you fly into for flights to London from United States?
London (YXU) is the airport you will fly into if you book a flight from United States to London. It is only a 5.3 mi journey from London (YXU) to London’s city center.
What are the cheapest airlines to fly from USA to London, Ontario one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $212. However, be on the lookout for offers from United Airlines and WestJet, as they are both options that can get you from USA to London, Ontario for a low price.
What are the most popular routes from USA to London, Ontario?
The most popular flight routes from USA to London, Ontario are Seattle/Tacoma Intl - London, Newark - London and 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.

See more FAQs

Grand Bend

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for USA to London

Newark to Toronto Island flights

Newark to Pearson Intl flights

LaGuardia to Pierre Elliott Trudeau Intl flights

John F Kennedy Intl to Pierre Elliott Trudeau Intl flights

John F Kennedy Intl to Pearson Intl flights

Newark to Pierre Elliott Trudeau Intl flights

Los Angeles to Pearson Intl flights

LaGuardia to Pearson Intl flights

San Francisco to Pearson Intl flights

Boston to Pearson Intl flights

Dallas/Fort Worth to Pearson Intl flights

Dulles Intl to Pearson Intl flights

Reagan-National to Pearson Intl flights

O'Hare Intl to Pierre Elliott Trudeau Intl flights

Dulles Intl to Pierre Elliott Trudeau Intl flights

Seattle to Pearson Intl flights

O'Hare Intl to Pearson Intl flights

San Francisco to Pierre Elliott Trudeau Intl flights

Reagan-National to Pierre Elliott Trudeau Intl flights

Hobby to Pearson Intl flights

Atlanta to Pearson Intl flights

Los Angeles to Pierre Elliott Trudeau Intl flights

Boston to Pierre Elliott Trudeau Intl flights

Boston to Toronto Island flights

Atlanta to Pierre Elliott Trudeau Intl flights

Dulles Intl to Toronto Island flights

Vancouver Intl to Pearson Intl flights

Fort Lauderdale to Pierre Elliott Trudeau Intl flights

George Bush Intcntl to Pearson Intl flights

Denver to Pierre Elliott Trudeau Intl flights

Denver to Pearson Intl flights

Baltimore to Pearson Intl flights

Seattle to Pierre Elliott Trudeau Intl flights

Philadelphia to Pearson Intl flights

John F Kennedy Intl to Toronto Island flights

Baltimore to Pierre Elliott Trudeau Intl flights

Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights

Orlando to Pearson Intl flights

Los Angeles to Toronto Island flights

Ontario to Pearson Intl flights

Raleigh to Pearson Intl flights

Midway to Pearson Intl flights

Fort Lauderdale to Pearson Intl flights

O'Hare Intl to Toronto Island flights

Minneapolis to Pearson Intl flights

Austin to Pearson Intl flights

San Diego to Pearson Intl flights

Minneapolis to Pierre Elliott Trudeau Intl flights

Philadelphia to Pierre Elliott Trudeau Intl flights

Charlotte to Pearson Intl flights

Complete your trip

London, Ontario car rentals

Toronto Pearson Intl Airport car rentals

Hamilton Airport car rentals

Toronto Region of Waterloo Intl Airport car rentals

London Airport car rentals

Sarnia Airport car rentals

Toronto car rentals

Ottawa car rentals

Windsor car rentals

Kitchener car rentals

Kingston car rentals

Niagara Falls car rentals

USA to London flights

Top 3 airlines flying from USA to London

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$183	Average$363	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$192	Average$688	FlexibilityNo cancel fee	On-time67%
WestJet	Cheapest$306	Average$499	FlexibilityNo cancel fee	On-time60%

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.

$194+ Cheap flights from the United States to London, ON (YXU)

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from USA to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 May 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Find flight deals from USA to London

Cheapest flights from USA to LondonExplore 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 May 1, 2025.

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 May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United States to London that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from the United States to London

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 May 1, 2025.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

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 May 1, 2025.

Read through reviews of airlines operating flights from USA to London, such as United Airlines, WestJet and Air Canada. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

Can I find deals for flights from USA to London that include hotel bookings?

How can I find direct flights from USA to London?

Can I find deals for business class flights from USA to London?

Traveling to a place near the United States?

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.

Top 3 airlines flying from USA to London

100% Free

Book with Flexibility

Travel Smart

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 May 1, 2025.