What airlines fly to London, Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to London, Ontario from United States according to our data. Air Canada is the first choice among our users, with 51% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 12 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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

If you’re flying from a popular airport in United States, such as New York or Boston, and flying into London, Ontario, then you can expect flight times to average 1h 52m and 1h 55m, respectively.

What is the cheapest airline that flies from United States to London?

Air Canada, WestJet, and Delta are the most popular carriers operating from United States to London

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

Prices for flights from United States to London Airport were last updated today.

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

As of August 2026, there are 2 operators available to choose from for flights from United States to London Airport.

How old do you have to be to fly from United States to London Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to London Airport.

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

The travel and health documents you'll need for your trip to London Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$174 Cheap Flights from the United States to London, Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to London

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to London

Enter your travel dates to find the best prices.

4:00 pm - 9:47 pmTPA Tampa-YXU London

5h 47m1 stop Toronto Pearson Intl

9:15 am - 9:09 pmYXU London-TPA Tampa

11h 54m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$382Air Canada

Tue, Jan 26 - Thu, Jan 28

12:05 am - 5:43 pmSFO San Francisco-YXU London

14h 38m1 stop Toronto Pearson Intl

6:20 pm - 11:04 pmYXU London-SFO San Francisco

7h 44m1 stop Toronto Pearson Intl

$382Air Canada

Wed, Sep 16 - Thu, Sep 24

4:40 pm - 5:35 amSFO San Francisco-YXU London

9h 55m1 stop Calgary

6:40 am - 3:50 pmYXU London-SFO San Francisco

12h 10m1 stop Calgary

$382WestJet

Fri, Nov 6 - Mon, Nov 9

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 2:10 pmYXU London-SAN San Diego

11h 00m1 stop Calgary

$386WestJet

Tue, Sep 15 - Sat, Sep 19

6:00 am - 4:45 pmSFO San Francisco-YXU London

7h 45m1 stop Calgary

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

8h 50m1 stop Calgary

$398WestJet

Fri, Oct 9 - Fri, Oct 16

4:00 pm - 9:47 pmTPA Tampa-YXU London

5h 47m1 stop Toronto Pearson Intl

5:30 am - 12:29 pmYXU London-TPA Tampa

6h 59m1 stop Toronto Pearson Intl

$398Air Canada

Tue, Jan 26 - Thu, Jan 28

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 1:16 pmYXU London-SAN San Diego

34h 06m2 stops Calgary San Francisco

$405Multiple Airlines

Thu, Oct 8 - Fri, Oct 16

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 1:16 pmYXU London-SAN San Diego

34h 06m2 stops Calgary San Francisco

$409Multiple Airlines

Fri, Oct 9 - Sun, Oct 18

3:30 pm - 5:20 amSAN San Diego-YXU London

10h 50m1 stop Calgary

6:10 am - 1:16 pmYXU London-SAN San Diego

34h 06m2 stops Calgary San Francisco

$409Multiple Airlines

Fri, Oct 9 - Wed, Oct 14

7:00 am - 9:40 pmSAN San Diego-YXU London

11h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

5:40 am - 4:00 pmYXU London-SAN San Diego

13h 20m2 stops Toronto Pearson Intl Vancouver Intl

$411Air Canada

Fri, Oct 9 - Fri, Oct 16

Recent last minute flight deals from the United States to London

Enter your travel dates to find the best prices.

6:00 am - 2:50 pmMCO Orlando-YXU London

8h 50m2 stops Newark Toronto Pearson Intl

6:20 pm - 11:47 pmYXU London-MCO Orlando

5h 27m1 stop Toronto Pearson Intl

$632Air Canada

Thu, Sep 3 - Mon, Sep 7

6:00 am - 2:50 pmMCO Orlando-YXU London

8h 50m2 stops Newark Toronto Pearson Intl

3:30 pm - 11:12 pmYXU London-MCO Orlando

7h 42m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$640Air Canada

Thu, Sep 3 - Mon, Sep 7

12:00 pm - 9:40 pmTPA Tampa-YXU London

9h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

5:40 am - 11:03 amYXU London-TPA Tampa

5h 23m1 stop Toronto Pearson Intl

$879Air Canada

Fri, Sep 4 - Mon, Sep 7

6:00 am - 4:45 pmSFO San Francisco-YXU London

7h 45m1 stop Calgary

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

8h 50m1 stop Calgary

$901WestJet

Tue, Sep 1 - Fri, Sep 4

11:55 am - 5:42 pmMCO Orlando-YXU London

5h 47m1 stop Toronto Pearson Intl

5:40 am - 10:52 amYXU London-MCO Orlando

5h 12m1 stop Toronto Pearson Intl

$933Air Canada

Thu, Sep 3 - Mon, Sep 7

6:00 am - 4:45 pmSFO San Francisco-YXU London

7h 45m1 stop Calgary

2:40 pm - 4:40 pmYXU London-SFO San Francisco

29h 00m2 stops Winnipeg Calgary

$935WestJet

Tue, Sep 1 - Fri, Sep 4

5:23 pm - 5:45 pmTPA Tampa-YXU London

24h 22m3 stops Houston George Bush Intcntl Denver Intl Toronto Pearson Intl

5:40 am - 11:03 amYXU London-TPA Tampa

5h 23m1 stop Toronto Pearson Intl

$1,020Multiple Airlines

Fri, Sep 4 - Mon, Sep 7

5:23 pm - 5:45 pmTPA Tampa-YXU London

24h 22m3 stops Houston George Bush Intcntl Denver Intl Toronto Pearson Intl

5:40 am - 11:03 amYXU London-TPA Tampa

5h 23m1 stop Toronto Pearson Intl

$1,083Multiple Airlines

Fri, Sep 4 - Mon, Sep 7

9:30 am - 5:20 amSFO San Francisco-YXU London

16h 50m2 stops Los Angeles Calgary

2:40 pm - 9:55 pmYXU London-SFO San Francisco

10h 15m2 stops Winnipeg Calgary

$1,252WestJet

Tue, Sep 1 - Fri, Sep 4

5:23 pm - 5:45 pmTPA Tampa-YXU London

24h 22m3 stops Houston George Bush Intcntl Denver Intl Toronto Pearson Intl

10:05 am - 8:04 pmYXU London-TPA Tampa

9h 59m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,265Multiple Airlines

Fri, Sep 4 - Mon, Sep 7

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Air Canada flights from United States to London, Ontario

Our best Air Canada deals on United States to London, Ontario flight tickets

Air Canada

Sep 16

SFO12:05 amSan Francisco

14h 38m

1 stop

YXU5:43 pmLondon

Sep 24

YXU6:20 pmLondon

7h 44m

1 stop

SFO11:04 pmSan Francisco

$382

Air Canada

Jan 26

TPA4:00 pmTampa

5h 47m

1 stop

YXU9:47 pmLondon

Jan 28

YXU5:30 amLondon

6h 59m

1 stop

TPA12:29 pmTampa

$398

Air Canada

Oct 10

SAN7:00 amSan Diego

11h 40m

2 stops

YXU9:40 pmLondon

Oct 16

YXU5:40 amLondon

13h 20m

2 stops

SAN4:00 pmSan Diego

$411

United Airlines flights from United States to London, Ontario

Our best United Airlines deals on United States to London, Ontario flight tickets

United Airlines

Sep 29

SAN6:28 pmSan Diego

11h 52m

2 stops

YXU9:20 amLondon

Oct 3

YXU5:40 amLondon

13h 14m

2 stops

SAN3:54 pmSan Diego

$562

United Airlines

Oct 10

SAN10:20 pmSan Diego

13h 30m

2 stops

YXU2:50 pmLondon

Oct 14

YXU5:40 amLondon

13h 00m

2 stops

SAN3:40 pmSan Diego

$563

United Airlines

Oct 12

SAN10:20 pmSan Diego

13h 30m

2 stops

YXU2:50 pmLondon

Oct 17

YXU5:40 amLondon

10h 15m

2 stops

SAN12:55 pmSan Diego

$564

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TampaLondon

TPA Tampa - YXU London

TPAYXU

Tampa

Tue 1/26

4:00 pm-9:47 pm

1 stop5h 47m

London

Thu 1/28

9:15 am-9:09 pm

2 stops11h 54m

$382

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Wed 9/16

12:05 am-5:43 pm

1 stop14h 38m

London

Thu 9/24

6:20 pm-11:04 pm

1 stop7h 44m

$382

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 11/6

4:40 pm-5:35 am

1 stop9h 55m

London

Mon 11/9

6:40 am-3:50 pm

1 stop12h 10m

$382

San DiegoLondon

SAN San Diego - YXU London

SANYXU

San Diego

Tue 9/15

3:30 pm-5:20 am

1 stop10h 50m

London

Sat 9/19

6:10 am-2:10 pm

1 stop11h 00m

$386

San FranciscoLondon

SFO San Francisco - YXU London

SFOYXU

San Francisco

Fri 10/9

6:00 am-4:45 pm

1 stop7h 45m

London

Fri 10/16

6:10 am-12:00 pm

1 stop8h 50m

$398

Quickest round-trip

TampaLondon

TPA Tampa - YXU London

TPAYXU

Tampa

Tue 1/26

4:00 pm-9:47 pm

1 stop5h 47m

London

Thu 1/28

5:30 am-12:29 pm

1 stop6h 59m

$398

San DiegoLondon

SAN San Diego - YXU London

SANYXU

San Diego

Thu 10/8

3:30 pm-5:20 am

1 stop10h 50m

London

Fri 10/16

6:10 am-1:16 pm

2 stops34h 06m

$405

San DiegoLondon

SAN San Diego - YXU London

SANYXU

San Diego

Fri 10/9

3:30 pm-5:20 am

1 stop10h 50m

London

Sun 10/18

6:10 am-1:16 pm

2 stops34h 06m

$409

San DiegoLondon

SAN San Diego - YXU London

SANYXU

San Diego

Fri 10/9

3:30 pm-5:20 am

1 stop10h 50m

London

Wed 10/14

6:10 am-1:16 pm

2 stops34h 06m

$409

San DiegoLondon

SAN San Diego - YXU London

SANYXU

San Diego

Fri 10/9

7:00 am-9:40 pm

2 stops11h 40m

London

Fri 10/16

5:40 am-4:00 pm

2 stops13h 20m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to London, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

Can stopping save me money on United States to London, Ontario flights?

You could potentially save up to 29% on your flight if you consider stops on a United States to London, Ontario flight.

Cheap United States to London, Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to London, Ontario

Best Price Found	$174
Fastest flight time	3h 50m
Direct flights	None

The best one-way flight to London, Ontario from United States in the past 72 hours is $174. The best round-trip flight deal from United States to London, Ontario found on momondo in the last 72 hours is $382.

The fastest flight from United States to London, Ontario takes 3h 50m

There are no direct flights from United States to London, Ontario. There are no popular flight routes from United States to London, Ontario.

Search flight deals

Frequently asked questions about flying from the United States to London, Ontario

When did momondo last update prices for flights from United States to London Airport?
Prices for flights from United States to London Airport were last updated today.
How many operators does momondo search for flights from United States to London Airport?
As of August 2026, there are 2 operators available to choose from for flights from United States to London Airport.
How old do you have to be to fly from United States to London Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to London Airport.
What documentation or ID do you need to fly to London Airport?
The travel and health documents you'll need for your trip to London Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United States to London, Ontario

Compare and see reviews for airlines that fly from United States to London, Ontario with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $358	Free Cancellation	Rating 7.2 3,441 reviews		Search WestJet flights
Air Canada	PriceFrom $358	Free Cancellation	Rating 7.1 11,555 reviews		Search Air Canada flights

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Why use momondo?

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

It is quick and easy to find United States to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo enables you to select and highlight flights to London from United States with this policy.

How can momondo help me find flights from United States to London?

momondo helps you find the best flight between United States and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from United States and alert you when they change.

An easier way to manage your London, Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from the United States to London from $174

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to London departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from United States to London, Ontario

Our best Air Canada deals on United States to London, Ontario flight tickets

United Airlines flights from United States to London, Ontario

Our best United Airlines deals on United States to London, Ontario flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from United States to London, Ontario

Can stopping save me money on United States to London, Ontario flights?

What is the cheapest airline that flies from United States to London?

What airlines fly to London, Ontario?

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

Cheap United States to London, Ontario flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from the United States to London, Ontario

Best airlines flying from United States to London, Ontario

Compare and see reviews for airlines that fly from United States to London, Ontario with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London, Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Canada

Airports servicing Ontario

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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