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 $299 (last 72 hours, from Los Angeles Los Angeles, to London, Ontario). WestJet has a score of 7.2 from 3,399 user reviews on momondo.

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 Los Angeles or San Francisco, and flying into London, Ontario, then you can expect flight times to average 4h 40m and 4h 54m, respectively.

$191 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.

6:00 am - 4:45 pm

SFO

YXU

7h 45m

1 stop

6:10 am - 12:00 pm

YXU

SFO

8h 50m

1 stop

$312WestJet

Thu, Aug 20 - Thu, Aug 27

6:05 pm - 5:20 am

LAX

YXU

8h 15m

1 stop

6:10 am - 12:25 pm

YXU

LAX

9h 15m

1 stop

$369WestJet

Fri, Sep 25 - Tue, Sep 29

6:05 pm - 5:20 am

LAX

YXU

8h 15m

1 stop

6:10 am - 12:25 pm

YXU

LAX

9h 15m

1 stop

$370WestJet

Fri, Sep 25 - Tue, Sep 29

6:00 am - 1:50 pm

SFO

YXU

28h 50m

2 stops

6:10 am - 12:00 pm

YXU

SFO

8h 50m

1 stop

$371WestJet

Thu, Aug 20 - Thu, Aug 27

6:05 pm - 5:20 am

SFO

YXU

8h 15m

1 stop

6:10 am - 12:00 pm

YXU

SFO

8h 50m

1 stop

$374WestJet

Mon, Aug 24 - Fri, Aug 28

6:05 pm - 5:20 am

SFO

YXU

8h 15m

1 stop

2:40 pm - 9:55 pm

YXU

SFO

10h 15m

2 stops

$380WestJet

Tue, Aug 18 - Fri, Aug 21

7:07 pm - 4:45 pm

LAX

YXU

18h 38m

2 stops

6:10 am - 2:05 pm

YXU

LAX

10h 55m

1 stop

$434Multiple Airlines

Thu, Aug 20 - Thu, Aug 27

10:35 pm - 9:20 am

LAX

YXU

7h 45m

1 stop

10:05 am - 3:30 pm

YXU

LAX

8h 25m

1 stop

$438Air Canada

Mon, Sep 14 - Fri, Sep 18

7:30 am - 5:43 pm

LAX

YXU

7h 13m

1 stop

10:05 am - 9:31 pm

YXU

LAX

14h 26m

2 stops

$446Air Canada

Mon, Sep 14 - Fri, Sep 18

8:10 am - 9:20 am

SFO

YXU

22h 10m

2 stops

10:05 am - 8:51 pm

YXU

SFO

13h 46m

2 stops

$455Air Canada

Tue, Aug 18 - Fri, Aug 21

Fly from

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 8/20

6:00 am-4:45 pm

1 stop7h 45m

London

Thu 8/27

6:10 am-12:00 pm

1 stop8h 50m

$312

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles Los Angeles

Fri 9/25

6:05 pm-5:20 am

1 stop8h 15m

London

Tue 9/29

6:10 am-12:25 pm

1 stop9h 15m

$369

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles Los Angeles

Fri 9/25

6:05 pm-5:20 am

1 stop8h 15m

London

Tue 9/29

6:10 am-12:25 pm

1 stop9h 15m

$370

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 8/20

6:00 am-1:50 pm

2 stops28h 50m

London

Thu 8/27

6:10 am-12:00 pm

1 stop8h 50m

$371

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 8/24

6:05 pm-5:20 am

1 stop8h 15m

London

Fri 8/28

6:10 am-12:00 pm

1 stop8h 50m

$374

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 8/18

6:05 pm-5:20 am

1 stop8h 15m

London

Fri 8/21

2:40 pm-9:55 pm

2 stops10h 15m

$380

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles Los Angeles

Thu 8/20

7:07 pm-4:45 pm

2 stops18h 38m

London

Thu 8/27

6:10 am-2:05 pm

1 stop10h 55m

$434

Quickest round-trip

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles Los Angeles

Mon 9/14

10:35 pm-9:20 am

1 stop7h 45m

London

Fri 9/18

10:05 am-3:30 pm

1 stop8h 25m

$438

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles Los Angeles

Mon 9/14

7:30 am-5:43 pm

1 stop7h 13m

London

Fri 9/18

10:05 am-9:31 pm

2 stops14h 26m

$446

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 8/18

8:10 am-9:20 am

2 stops22h 10m

London

Fri 8/21

10:05 am-8:51 pm

2 stops13h 46m

$455

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

Prices

Other information

What is the cheapest month to fly to London, Ontario?

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

CHEAPEST MONTH TO FLY TO LONDON, ONTARIO FROM LOS ANGELES	January	44% cheaper	Flying from Los Angeles to London, Ontario costs on average just $307 in January
MOST EXPENSIVE MONTH TO FLY TO LONDON, ONTARIO FROM LOS ANGELES	November	96% more expensive	It costs about $1,059 for flights to London, Ontario from Los Angeles in November
MOST POPULAR MONTH TO FLY TO LONDON, ONTARIO FROM LOS ANGELES	June	700% more users visited	More momondo users searched in flights to London, Ontario from Los Angeles in June than any other month

Cheap London, Ontario flight deals and tips

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

Best One-Way Price	$191
Best Round-Trip Price	$312
Fastest flight time	6h 45m

The best one-way flight price to London from United States in the last 5 days is $191 (Los Angeles 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 $312 (San Francisco to London).

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The fastest flight to London from United States takes 6h 45m (Seattle/Tacoma Intl 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 Toronto Region of Waterloo Intl Airport for $209 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?

$121 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 57% 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 July 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 use momondo?

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.