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

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

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 43m and 1h 48m, respectively.

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 50% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 11 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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 October 2025, 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.

$180 Cheap Flights from the United States to London in 2025/26

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4:05 pm - 9:21 pmMCO-YXU

5h 16m1 stop

5:40 pm - 11:30 pmYXU-MCO

5h 50m1 stop

$363Air Canada

Find Deal

Thu, Feb 5 - Mon, Feb 9

12:10 pm - 5:05 pmMCO-YXU

4h 55m1 stop

5:15 am - 5:07 pmYXU-MCO

11h 52m2 stops

$369Air Canada

Find Deal

Thu, Feb 5 - Mon, Feb 9

8:30 am - 9:21 pmMCO-YXU

12h 51m2 stops

5:15 am - 5:07 pmYXU-MCO

11h 52m2 stops

$374Air Canada

Find Deal

Thu, Feb 5 - Mon, Feb 9

7:00 am - 7:12 pmLAX-YXU

9h 12m1 stop

7:30 am - 7:50 pmYXU-LAX

15h 20m2 stops

$387WestJet

Find Deal

Fri, Dec 5 - Fri, Dec 12

7:00 am - 7:12 pmLAX-YXU

9h 12m1 stop

7:30 am - 10:03 pmYXU-LAX

17h 33m1 stop

$401WestJet

Find Deal

Fri, Dec 5 - Fri, Dec 12

12:10 pm - 5:05 pmMCO-YXU

4h 55m1 stop

9:25 am - 3:05 pmYXU-MCO

5h 40m1 stop

$401Air Canada

Find Deal

Fri, Dec 5 - Fri, Dec 12

12:25 am - 5:05 pmLAX-YXU

13h 40m2 stops

9:25 am - 3:17 pmYXU-LAX

8h 52m1 stop

$491United Airlines

Find Deal

Wed, Feb 18 - Mon, Feb 23

12:25 am - 5:05 pmLAX-YXU

13h 40m2 stops

5:15 am - 1:44 pmYXU-LAX

11h 29m2 stops

$507United Airlines

Find Deal

Wed, Feb 18 - Mon, Feb 23

10:00 pm - 7:12 pmEWR-YXU

21h 12m2 stops

5:15 am - 2:52 pmYXU-EWR

9h 37m2 stops

$511Multiple Airlines

Find Deal

Sat, Dec 6 - Sat, Dec 13

7:18 am - 9:21 pmMCO-YXU

14h 03m2 stops

5:15 am - 5:07 pmYXU-MCO

11h 52m2 stops

$531Multiple Airlines

Find Deal

Fri, Feb 13 - Sun, Feb 15

Air Canada flights from United States to London, Ontario

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

Air Canada

Feb 5

MCO4:05 pmOrlando

5h 16m

1 stop

YXU9:21 pmLondon

Feb 9

YXU5:40 pmLondon

5h 50m

1 stop

MCO11:30 pmOrlando

$363

Find similar

Air Canada

Feb 5

MCO12:10 pmOrlando

4h 55m

1 stop

YXU5:05 pmLondon

Feb 9

YXU5:15 amLondon

11h 52m

2 stops

MCO5:07 pmOrlando

$369

Find similar

Air Canada

Feb 5

MCO8:30 amOrlando

12h 51m

2 stops

YXU9:21 pmLondon

Feb 9

YXU5:15 amLondon

11h 52m

2 stops

MCO5:07 pmOrlando

$374

Find similar

United Airlines flights from United States to London, Ontario

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

United Airlines

Feb 18

LAX12:25 amLos Angeles

13h 40m

2 stops

YXU5:05 pmLondon

Feb 23

YXU9:25 amLondon

8h 52m

1 stop

LAX3:17 pmLos Angeles

$491

Find similar

United Airlines

Feb 18

LAX12:25 amLos Angeles

13h 40m

2 stops

YXU5:05 pmLondon

Feb 23

YXU5:15 amLondon

11h 29m

2 stops

LAX1:44 pmLos Angeles

$507

Find similar

United Airlines

Dec 5

MCO6:00 amOrlando

11h 05m

2 stops

YXU5:05 pmLondon

Dec 12

YXU5:15 amLondon

14h 41m

2 stops

MCO7:56 pmOrlando

$541

Find similar

momondo Fare Finder

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

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Route

Depart

Return

Price

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 2/5

4:05 pm-9:21 pm

1 stop5h 16m

London

Mon 2/9

5:40 pm-11:30 pm

1 stop5h 50m

$363

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 2/5

12:10 pm-5:05 pm

1 stop4h 55m

London

Mon 2/9

5:15 am-5:07 pm

2 stops11h 52m

$369

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Thu 2/5

8:30 am-9:21 pm

2 stops12h 51m

London

Mon 2/9

5:15 am-5:07 pm

2 stops11h 52m

$374

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Fri 12/5

7:00 am-7:12 pm

1 stop9h 12m

London

Fri 12/12

7:30 am-7:50 pm

2 stops15h 20m

$387

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Fri 12/5

7:00 am-7:12 pm

1 stop9h 12m

London

Fri 12/12

7:30 am-10:03 pm

1 stop17h 33m

$401

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 12/5

12:10 pm-5:05 pm

1 stop4h 55m

London

Fri 12/12

9:25 am-3:05 pm

1 stop5h 40m

$401

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Wed 2/18

12:25 am-5:05 pm

2 stops13h 40m

London

Mon 2/23

9:25 am-3:17 pm

1 stop8h 52m

$491

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Wed 2/18

12:25 am-5:05 pm

2 stops13h 40m

London

Mon 2/23

5:15 am-1:44 pm

2 stops11h 29m

$507

NewarkLondon

EWR - YXU

EWRYXU

Newark

Sat 12/6

10:00 pm-7:12 pm

2 stops21h 12m

London

Sat 12/13

5:15 am-2:52 pm

2 stops9h 37m

$511

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 2/13

7:18 am-9:21 pm

2 stops14h 03m

London

Sun 2/15

5:15 am-5:07 pm

2 stops11h 52m

$531

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

What is the cheapest day to depart on your flight to London, Ontario?

According to our data, Wednesday is the cheapest day to fly to London, Ontario from United States. The lowest ticket price found for a Wednesday departure recently was $199. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London, Ontario on Friday is $549.

What is the cheapest time of day to depart on your flight to London, Ontario?

In the afternoon is the cheapest time of day to fly from United States to London, Ontario when you can find flight prices for as low as $284. Flying to London, Ontario in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to London, Ontario, so prices are often more expensive at around $514 per ticket.

What is the cheapest United States to London flight route?

Fly from Orlando to London for the best United States - London flight prices

What cabin class options are available on United States to London flights?

There is only 1 cabin class available to choose from on United States to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between United States to London, Ontario.

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

Direct flights	None

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

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 October 2025, 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.
What is the most popular plane model from United States to London, Ontario?
Based on momondo bookings for flights between United States and London, Ontario, the leading plane model is Boeing 737 MAX 8, making up 80.00% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 20.00%.

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 $162	Free Cancellation	Rating 7.2 3,139 reviews	Search WestJet flights
Air Canada	PriceFrom $178	Free Cancellation	Rating 7.1 10,350 reviews	Search Air Canada flights
United Airlines	PriceFrom $183	Free Cancellation	Rating 7.4 8,995 reviews	Search United Airlines 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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Airports servicing Ontario

Popular cities in Canada

Flights to Torontofrom $98

Flights to Vancouverfrom $87

Flights to Montrealfrom $168

Flights to Calgaryfrom $176

Flights to Ottawafrom $162

Flights to Halifaxfrom $206

Flights to Winnipegfrom $179

Flights to Québec Cityfrom $198

Flights to Saskatoonfrom $46

Flights to Kelownafrom $137

Flights to St. John'sfrom $316

Flights to Reginafrom $191

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Cheap flights from the United States to London from $180

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 12/5. 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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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from the United States to London

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

Recent one-way flight deals from the United States to London

Recent last minute flight deals from the United States to London

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

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

What is the cheapest day to depart on your flight to London, Ontario?

What is the cheapest time of day to depart on your flight to London, Ontario?

What is the cheapest United States to London flight route?

Fly from Orlando to London for the best United States - London flight prices

What cabin class options are available on United States to London flights?

There is only 1 cabin class available to choose from on United States to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between United States to London, Ontario.

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

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

What airlines fly to London, Ontario?

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 43m and 1h 48m, respectively.

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

Direct flights

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

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

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

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

What is the most popular plane model from 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?

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

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

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

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

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