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Cheap flights from North America to London, ON from C$ 108

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
21 Apr — 28 Apr1
1 adult

Cheap flight deals from North America to London

Keep the following information in mind while searching for North America to London flight deals. Data was last updated 16 April 2025.

Round-trip from

C$ 248

One-way from

C$ 108

Popular in

July

Cheapest in

January

Average price

C$ 588

Good round-trip deal

C$ 338 or less

Good one-way deal

C$ 173 or less
Air Canada
  • Air Canada
  • 31/5-7/6
  • 2 total stops
  • 14h 34m total
  • North America to London
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Air Canada
  • Air Canada
  • 31/5
  • 1 total stop
  • 6h 58m total
  • North America to London
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Highest demand for flights based on searches. 2% potential increase in price (C$ 20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from North America to London.
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Price to beat on a one-way flight from North America to London.
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Find flight deals from North America to London

Cheapest flights from North America to London
Explore the most affordable flight options available from North America to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2025.

Sat 31/511:30 a.m.SEA - YXU
1 stop6h 58mAir Canada
Sat 7/66:15 a.m.YXU - SEA
1 stop7h 36mAir Canada
Deal found 16/4C$ 248
Sat 31/51:50 p.m.SEA - YXU
1 stop12h 24mWestJet
Sat 7/66:00 a.m.YXU - SEA
1 stop9h 58mWestJet
Deal found 16/4C$ 267
Wed 30/45:05 p.m.SEA - YXU
2 stops13h 13mUnited Airlines
Sat 3/56:15 a.m.YXU - SEA
1 stop7h 30mUnited Airlines
Deal found 16/4C$ 307
Sat 31/511:35 p.m.YYC - YXU
Nonstop3h 39mWestJet
Sat 7/68:00 p.m.YXU - YYC
Nonstop4h 07mWestJet
Deal found 16/4C$ 310
Thu 15/56:30 p.m.YVR - YXU
1 stop7h 44mWestJet
Mon 26/56:00 a.m.YXU - YVR
2 stops11h 40mWestJet
Deal found 14/4C$ 360
Wed 28/58:45 p.m.YEG - YXU
1 stop6h 29mWestJet
Sun 8/66:00 a.m.YXU - YEG
2 stops8h 52mWestJet
Deal found 15/4C$ 364
Sat 31/52:15 p.m.YYZ - YXU
Nonstop0h 48mAir Canada
Sat 7/63:35 p.m.YXU - YYZ
Nonstop0h 49mAir Canada
Deal found 16/4C$ 366
Fri 30/512:25 a.m.YYC - YXU
1 stop6h 53mMultiple Airlines
Sat 7/66:00 a.m.YXU - YYC
Nonstop4h 07mMultiple Airlines
Deal found 16/4C$ 388
Mon 23/63:30 p.m.YVR - YXU
2 stops10h 44mMultiple Airlines
Wed 2/79:45 p.m.YXU - YVR
Nonstop5h 00mMultiple Airlines
Deal found 15/4C$ 391
Mon 26/58:15 p.m.YLW - YXU
1 stop5h 59mWestJet
Sun 1/66:00 a.m.YXU - YLW
2 stops10h 31mWestJet
Deal found 15/4C$ 407
Sat 31/53:50 p.m.YYC - YXU
2 stops15h 28mAir Canada
Sat 7/66:15 a.m.YXU - YYC
2 stops10h 46mAir Canada
Deal found 16/4C$ 414
Wed 4/611:30 p.m.YLW - YXU
1 stop6h 48mAir Canada
Tue 10/66:15 a.m.YXU - YLW
1 stop7h 06mAir Canada
Deal found 15/4C$ 441

Cheapflights Fare Finder

Customize your flight search to find flights from North America 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 16 April 2025.
Use the filters below to find and compare flights from North America to London that are best for you.

Fly from

North America

Fly to

London

Route

Depart

Return

Price

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 31/5

11:30 a.m.-9:28 p.m.

1 stop6h 58m

London

Sat 7/6

6:15 a.m.-10:51 a.m.

1 stop7h 36m

C$ 248

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sat 31/5

1:50 p.m.-5:14 a.m.

1 stop12h 24m

London

Sat 7/6

6:00 a.m.-12:58 p.m.

1 stop9h 58m

C$ 267

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Wed 30/4

5:05 p.m.-9:18 a.m.

2 stops13h 13m

London

Sat 3/5

6:15 a.m.-10:45 a.m.

1 stop7h 30m

C$ 307

CalgaryLondon

YYC - YXU

YYCYXU

Calgary

Sat 31/5

11:35 p.m.-5:14 a.m.

Nonstop3h 39m

London

Sat 7/6

8:00 p.m.-10:07 p.m.

Nonstop4h 07m

C$ 310

VancouverLondon

YVR - YXU

YVRYXU

Vancouver Intl

Thu 15/5

6:30 p.m.-5:14 a.m.

1 stop7h 44m

London

Mon 26/5

6:00 a.m.-2:40 p.m.

2 stops11h 40m

C$ 360

EdmontonLondon

YEG - YXU

YEGYXU

Edmonton

Wed 28/5

8:45 p.m.-5:14 a.m.

1 stop6h 29m

London

Sun 8/6

6:00 a.m.-12:52 p.m.

2 stops8h 52m

C$ 364

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sat 31/5

2:15 p.m.-3:03 p.m.

Nonstop0h 48m

London

Sat 7/6

3:35 p.m.-4:24 p.m.

Nonstop0h 49m

C$ 366

CalgaryLondon

YYC - YXU

YYCYXU

Calgary

Fri 30/5

12:25 a.m.-9:18 a.m.

1 stop6h 53m

London

Sat 7/6

6:00 a.m.-8:07 a.m.

Nonstop4h 07m

C$ 388

VancouverLondon

YVR - YXU

YVRYXU

Vancouver Intl

Mon 23/6

3:30 p.m.-5:14 a.m.

2 stops10h 44m

London

Wed 2/7

9:45 p.m.-11:45 p.m.

Nonstop5h 00m

C$ 391

KelownaLondon

YLW - YXU

YLWYXU

Kelowna

Mon 26/5

8:15 p.m.-5:14 a.m.

1 stop5h 59m

London

Sun 1/6

6:00 a.m.-1:31 p.m.

2 stops10h 31m

C$ 407

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/4

Showing 1-10 of 55 results
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Best time to book a flight from North America to London

Have a flexible travel schedule? Discover the best time to fly to London from North America 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 North America to London

What is the cheapest month to book a flight from North America to London, Ontario?

Currently, October is the cheapest month in which you can book a flight from North America to London, Ontario (average of C$ 243). Flying from North America 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 NA to YXU?

Find hourly flight availability from North America 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 16 April 2025.

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

Rainfall in London by month

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

In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals 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 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

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 16 April 2025.
United Airlines
7.4
Good
8,665 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

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
8,665 reviews
United Airlines
7.4
Good
8,665 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

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
2,806 reviews
United Airlines
7.4
Good
8,665 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

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
9,134 reviews
United Airlines
7.4
Good
8,665 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

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??
Flair Airlines
6.0
Okay
239 reviews
United Airlines
7.4
Good
8,665 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

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

Find useful and relevant information for your journey from North America 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 North America?

    For a flight from North America to London, you will be flying into London. London (YXU) is just 8.6 km from the centre of the city.

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

    One-way options have recently been found by users for as low as C$ 108 on Air Canada. Other airlines that offer cheap prices include Flair Airlines from C$ 118 and WestJet from C$ 153 one-way.

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

    The most popular route from North America to London, Ontario is Vancouver Intl - London. You may also consider Abbotsford - London or Calgary - London.

  • Can I find deals for flights from North America to London that include hotel bookings?

    Yes. In addition to deals on North America to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from North America to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from North America to London.

  • Can I find deals for business class flights from North America to London?

    Yes. Cheapflights offers flight deals from North America 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 North America to London, Ontario?

    Currently, October is the cheapest month in which you can book a flight from North America to London, Ontario (average of C$ 243). Flying from North America 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 North America?

Book flights to North America if you plan to visit one of these locations
Grand Bend
Port Stanley

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Alternative routes for North America to London

See prices for flight routes from nearby airports that may be better suited for you.
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Cheapflights does show flights with no change fees to all users. To see these options for flights from North America to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from North America to London become cheaper?

Yes, Cheapflights offers price alerts on North America 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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