Which airlines fly to London, Ontario?

Based on our data, the most popular airlines that fly to London, Ontario from United States are Air Canada, Porter Airlines, United Airlines and American Airlines. There may also be other airline options depending on where in United States you’re flying from.

WestJet Flights to London, Ontario

There are 8 WestJet flights to London, Ontario in a normal week. The most common departure point is Calgary and the best WestJet ticket price seen on momondo is $358 (last 72 hours, from Los Angeles, to London, Ontario). WestJet has a score of 7.2 from 3,434 user reviews on momondo.

$198 Cheap Flights to London, Ontario in 2026

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Find the cheapest flights from the United States to London, Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

5:55 pm - 9:40 amYXU London-SEA Seattle/Tacoma Intl

18h 45m1 stop Calgary

$339WestJet

Sat, Sep 12 - Fri, Sep 18

6:05 pm - 5:20 amSFO San Francisco-YXU London

8h 15m1 stop Calgary

6:10 am - 12:00 pmYXU London-SFO San Francisco

8h 50m1 stop Calgary

$351WestJet

Wed, Sep 30 - Wed, Oct 7

6:00 am - 5:20 amSFO San Francisco-YXU London

20h 20m1 stop Calgary

6:10 am - 12:00 pmYXU London-SFO San Francisco

8h 50m1 stop Calgary

$359WestJet

Thu, Sep 17 - Thu, Sep 24

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 9:42 amYXU London-SEA Seattle/Tacoma Intl

30h 32m2 stops Calgary Las Vegas Harry Reid Intl

$367Multiple Airlines

Tue, Sep 15 - Mon, Sep 21

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 6:45 pmYXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

$396WestJet

Thu, Oct 8 - Tue, Oct 13

12:50 pm - 9:20 amSFO San Francisco-YXU London

17h 30m2 stops Edmonton Toronto Pearson Intl

3:30 pm - 8:59 pmYXU London-SFO San Francisco

8h 29m1 stop Toronto Pearson Intl

$443Air Canada

Thu, Sep 17 - Thu, Sep 24

6:30 pm - 5:20 amBOS Boston Logan Intl-YXU London

10h 50m1 stop Calgary

6:10 am - 3:50 pmYXU London-BOS Boston Logan Intl

33h 40m2 stops Calgary Ottawa

$444Multiple Airlines

Thu, Sep 17 - Tue, Sep 22

11:17 am - 5:20 amSFO San Francisco-YXU London

15h 03m2 stops Las Vegas Harry Reid Intl Calgary

6:10 am - 12:00 pmYXU London-SFO San Francisco

8h 50m1 stop Calgary

$461Multiple Airlines

Wed, Sep 30 - Wed, Oct 7

6:30 am - 8:37 amSFO San Francisco-YXU London

23h 07m2 stops Vancouver Intl Toronto Pearson Intl

3:25 pm - 9:30 pmYXU London-SFO San Francisco

9h 05m1 stop Toronto Pearson Intl

$464Air Canada

Fri, Nov 6 - Mon, Nov 9

12:50 pm - 9:20 amSFO San Francisco-YXU London

17h 30m2 stops Edmonton Toronto Pearson Intl

5:40 am - 6:31 pmYXU London-SFO San Francisco

15h 51m2 stops Toronto Pearson Intl Vancouver Intl

$467Air Canada

Thu, Sep 17 - Thu, Sep 24

Cheap last minute flights

Enter your travel dates to find the best prices.

6:30 pm - 5:20 amBOS Boston Logan Intl-YXU London

10h 50m1 stop Calgary

6:10 am - 5:40 pmYXU London-BOS Boston Logan Intl

11h 30m1 stop Calgary

$988WestJet

Sun, Aug 23 - Sat, Sep 5

6:30 pm - 1:50 pmBOS Boston Logan Intl-YXU London

43h 20m2 stops Calgary Winnipeg

6:10 am - 10:20 pmYXU London-BOS Boston Logan Intl

16h 10m1 stop Calgary

$1,134WestJet

Sun, Aug 23 - Sat, Sep 5

6:30 pm - 5:20 amBOS Boston Logan Intl-YXU London

10h 50m1 stop Calgary

2:40 pm - 4:46 pmYXU London-BOS Boston Logan Intl

26h 06m2 stops Winnipeg Toronto Pearson Intl

$1,275Multiple Airlines

Sat, Aug 22 - Sun, Aug 23

3:35 pm - 9:40 pmBOS Boston Logan Intl-YXU London

6h 05m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

5:40 am - 2:41 pmYXU London-BOS Boston Logan Intl

9h 01m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,440Air Canada

Sun, Aug 23 - Sat, Sep 5

4:00 pm - 9:40 pmLGA New York LaGuardia-YXU London

5h 40m1 stop Toronto Pearson Intl

6:20 pm - 7:35 amYXU London-LGA New York LaGuardia

13h 15m1 stop Toronto Pearson Intl

$1,585Air Canada

Sun, Aug 23 - Tue, Aug 25

5:17 pm - 9:40 pmIAD Washington, D.C. Dulles Intl-YXU London

4h 23m1 stop Toronto Pearson Intl

5:40 am - 3:24 pmYXU London-IAD Washington, D.C. Dulles Intl

9h 44m1 stop Toronto Pearson Intl

$1,587Multiple Airlines

Sat, Aug 22 - Mon, Aug 24

6:55 pm - 9:20 amDCA Washington, D.C. Reagan-National-YXU London

14h 25m1 stop Toronto Pearson Intl

6:20 pm - 10:31 pmYXU London-DCA Washington, D.C. Reagan-National

4h 11m1 stop Toronto Pearson Intl

$1,614Air Canada

Sat, Aug 22 - Mon, Aug 24

3:10 pm - 5:20 amEWR Newark-YXU London

14h 10m2 stops Boston Logan Intl Calgary

8:40 pm - 10:29 amYXU London-EWR Newark

13h 49m2 stops Calgary Atlanta Hartsfield-Jackson

$1,659WestJet

Sun, Aug 23 - Tue, Aug 25

11:00 am - 2:50 pmDCA Washington, D.C. Reagan-National-YXU London

3h 50m1 stop Toronto Pearson Intl

5:40 am - 12:00 pmYXU London-DCA Washington, D.C. Reagan-National

6h 20m2 stops Toronto Pearson Intl Ottawa

$1,675Multiple Airlines

Sat, Aug 22 - Mon, Aug 24

4:45 pm - 5:20 amBOS Boston Logan Intl-YXU London

12h 35m2 stops Montreal Pierre Elliott Trudeau Intl Calgary

5:55 pm - 8:55 pmYXU London-BOS Boston Logan Intl

27h 00m3 stops Calgary Abbotsford Montreal Pierre Elliott Trudeau Intl

$1,675Multiple Airlines

Sun, Aug 23 - Sat, Sep 5

Fly from

Route

Depart

Return

Price

Cheapest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Sat 9/12

7:35 pm-5:20 am

1 stop6h 45m

London

Fri 9/18

5:55 pm-9:40 am

1 stop18h 45m

$339

Quickest round-trip

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Wed 9/30

6:05 pm-5:20 am

1 stop8h 15m

London

Wed 10/7

6:10 am-12:00 pm

1 stop8h 50m

$351

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Thu 9/17

6:00 am-5:20 am

1 stop20h 20m

London

Thu 9/24

6:10 am-12:00 pm

1 stop8h 50m

$359

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 9/15

7:35 pm-5:20 am

1 stop6h 45m

London

Mon 9/21

6:10 am-9:42 am

2 stops30h 32m

$367

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Thu 10/8

7:35 pm-5:20 am

1 stop6h 45m

London

Tue 10/13

6:10 am-6:45 pm

1 stop15h 35m

$396

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Thu 9/17

12:50 pm-9:20 am

2 stops17h 30m

London

Thu 9/24

3:30 pm-8:59 pm

1 stop8h 29m

$443

BostonLondon

BOS Boston Logan Intl - YXU London

BOSYXU

Boston Logan Intl

Thu 9/17

6:30 pm-5:20 am

1 stop10h 50m

London

Tue 9/22

6:10 am-3:50 pm

2 stops33h 40m

$444

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Wed 9/30

11:17 am-5:20 am

2 stops15h 03m

London

Wed 10/7

6:10 am-12:00 pm

1 stop8h 50m

$461

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 11/6

6:30 am-8:37 am

2 stops23h 07m

London

Mon 11/9

3:25 pm-9:30 pm

1 stop9h 05m

$464

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Thu 9/17

12:50 pm-9:20 am

2 stops17h 30m

London

Thu 9/24

5:40 am-6:31 pm

2 stops15h 51m

$467

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

London, Ontario flights insights and trends

Explore insights for your London, Ontario flight to craft the best travel plan

How long does it take to fly to London, Ontario?

If you’re flying from a popular airport in United States, such as Los Angeles or San Francisco, and flying into London, Ontario, then you can expect flight times to average 4h 40m and 4h 49m, respectively.

Cheapest flights to London

Find the cheapest flights to London from your nearest city or airport

Find flights from Los Angeles to Toronto Pearson Intl Airport

Cheap London, Ontario flight deals and tips

Summary info about London, Ontario flight prices, duration and airlines

Best One-Way Price	$198
Best Round-Trip Price	$351
Fastest flight time	3h 55m

The best one-way flight price to London from United States in the last 5 days is $198 (Los Angeles to London).

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The best round-trip flight price to London from United States in the last 5 days is $351 (San Francisco to London).

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The fastest flight to London from United States takes 3h 55m (Washington, D.C. Reagan-National to London).

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Frequently asked questions about flying to London, Ontario

Is there an alternative airport near London, Ontario?

Those flying to London, Ontario could potentially find better pricing at London Airport (5 mi from London, Ontario city center), Toronto Region of Waterloo Intl Airport (54 mi from London, Ontario city center), Sarnia Airport (54 mi from London, Ontario city center), Chatham-Kent Airport (63 mi from London, Ontario city center) or Hamilton Airport (67 mi from London, Ontario city center) depending on the month and departure airport.

Is there a cheaper alternative to flying into London, Ontario?

You can find deals at London Airport for $207 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to London, Ontario?

$132 is the cheapest deal found on momondo in the last two weeks for a flight to London, Ontario. This flight is from Halifax and is 48% cheaper than most flights to London, Ontario. To find the cheapest price to London, Ontario from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to London Airport?

Prices for flights to London Airport refresh daily.

How many operators does momondo search for flights to London Airport?

The number of operators available for flights to London Airport is 2 as of August 2026.

How old do you have to be to fly to London Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to London Airport.

What documentation or ID do you need to fly to London Airport?

The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why should I use momondo to find a flight deal to London?

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Can I find flights to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to London?

Once you have performed a search for flights to London, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.