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Cheap flights from London, Ontario to the United States from $193

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to the United States departing on 1/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:30 am - 10:03 pmYXU-LAX
17h 33m1 stop
WestJet Logo
7:00 am - 7:12 pmLAX-YXU
9h 12m1 stop
$284WestJet
Find Deal
Fri, Jan 16 - Sun, Jan 25
WestJet Logo
7:30 am - 10:03 pmYXU-LAX
17h 33m1 stop
WestJet Logo
11:50 am - 6:34 amLAX-YXU
15h 44m2 stops
$294WestJet
Find Deal
Fri, Jan 16 - Sun, Jan 25
WestJet Logo
7:30 am - 7:50 pmYXU-LAX
15h 20m2 stops
WestJet Logo
11:50 am - 6:34 amLAX-YXU
15h 44m2 stops
$303WestJet
Find Deal
Fri, Jan 16 - Sun, Jan 25
Air Canada Logo
5:10 am - 5:26 pmYXU-FLL
12h 16m2 stops
Air Canada Logo
11:15 am - 5:03 pmFLL-YXU
5h 48m1 stop
$351Air Canada
Find Deal
Sun, Apr 5 - Thu, Apr 9
Air Canada Logo
9:25 am - 3:05 pmYXU-MCO
5h 40m1 stop
Air Canada Logo
12:10 pm - 5:05 pmMCO-YXU
4h 55m1 stop
$351Air Canada
Find Deal
Wed, Jan 21 - Fri, Jan 23
WestJet Logo
8:10 pm - 11:00 amYXU-LAX
17h 50m2 stops
WestJet Logo
11:50 am - 6:35 amLAX-YXU
15h 45m2 stops
$352WestJet
Find Deal
Sun, Feb 22 - Thu, Feb 26
United Airlines Logo
5:10 am - 10:32 amYXU-LAX
8h 22m1 stop
United Airlines Logo
12:40 am - 5:05 pmLAX-YXU
13h 25m2 stops
$388United Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 24
United Airlines Logo
5:10 am - 10:32 amYXU-LAX
8h 22m1 stop
United Airlines Logo
12:40 am - 5:05 pmLAX-YXU
13h 25m2 stops
$389United Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 24
Multiple Airlines Logo
5:40 pm - 12:44 amYXU-MCO
7h 04m2 stops
Multiple Airlines Logo
8:30 am - 9:21 pmMCO-YXU
12h 51m2 stops
$418Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
5:15 am - 7:57 pmYXU-MCO
14h 42m2 stops
Multiple Airlines Logo
8:30 am - 9:21 pmMCO-YXU
12h 51m2 stops
$433Multiple Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24

WestJet flights from London, Ontario to United States

Our best WestJet deals on London, Ontario to United States flight tickets
WestJet
Jan 16
YXU7:30 amLondon
17h 33m
1 stop
LAX10:03 pmLos Angeles
Jan 25
LAX7:00 amLos Angeles
9h 12m
1 stop
YXU7:12 pmLondon
$284
Find similar
WestJet
Jan 16
YXU7:30 amLondon
17h 33m
1 stop
LAX10:03 pmLos Angeles
Jan 25
LAX11:50 amLos Angeles
15h 44m
2 stops
YXU6:34 amLondon
$294
Find similar
WestJet
Jan 16
YXU7:30 amLondon
15h 20m
2 stops
LAX7:50 pmLos Angeles
Jan 25
LAX11:50 amLos Angeles
15h 44m
2 stops
YXU6:34 amLondon
$303
Find similar

United Airlines flights from London, Ontario to United States

Our best United Airlines deals on London, Ontario to United States flight tickets
United Airlines
Jan 16
YXU5:10 amLondon
8h 22m
1 stop
LAX10:32 amLos Angeles
Jan 24
LAX12:40 amLos Angeles
13h 25m
2 stops
YXU5:05 pmLondon
$388
Find similar
United Airlines
Jan 16
YXU5:10 amLondon
8h 22m
1 stop
LAX10:32 amLos Angeles
Jan 24
LAX12:40 amLos Angeles
13h 25m
2 stops
YXU5:05 pmLondon
$389
Find similar
United Airlines
Feb 22
YXU5:10 amLondon
11h 34m
2 stops
LAX1:44 pmLos Angeles
Feb 25
LAX12:55 amLos Angeles
13h 10m
2 stops
YXU5:05 pmLondon
$392
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to United States 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from London, Ontario to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 1/16

7:30 am-10:03 pm

1 stop17h 33m

Los Angeles

Sun 1/25

7:00 am-7:12 pm

1 stop9h 12m

$284

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 1/16

7:30 am-10:03 pm

1 stop17h 33m

Los Angeles

Sun 1/25

11:50 am-6:34 am

2 stops15h 44m

$294

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 1/16

7:30 am-7:50 pm

2 stops15h 20m

Los Angeles

Sun 1/25

11:50 am-6:34 am

2 stops15h 44m

$303

LondonFort Lauderdale

YXU - FLL

YXUFLL

London

Sun 4/5

5:10 am-5:26 pm

2 stops12h 16m

Fort Lauderdale

Thu 4/9

11:15 am-5:03 pm

1 stop5h 48m

$351

LondonOrlando

YXU - MCO

YXUMCO

London

Wed 1/21

9:25 am-3:05 pm

1 stop5h 40m

Orlando

Fri 1/23

12:10 pm-5:05 pm

1 stop4h 55m

$351

LondonLos Angeles

YXU - LAX

YXULAX

London

Sun 2/22

8:10 pm-11:00 am

2 stops17h 50m

Los Angeles

Thu 2/26

11:50 am-6:35 am

2 stops15h 45m

$352

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 1/16

5:10 am-10:32 am

1 stop8h 22m

Los Angeles

Sat 1/24

12:40 am-5:05 pm

2 stops13h 25m

$388

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 1/16

5:10 am-10:32 am

1 stop8h 22m

Los Angeles

Sat 1/24

12:40 am-5:05 pm

2 stops13h 25m

$389

LondonOrlando

YXU - MCO

YXUMCO

London

Tue 12/2

5:40 pm-12:44 am

2 stops7h 04m

Orlando

Tue 12/9

8:30 am-9:21 pm

2 stops12h 51m

$418

LondonOrlando

YXU - MCO

YXUMCO

London

Mon 11/17

5:15 am-7:57 pm

2 stops14h 42m

Orlando

Mon 11/24

8:30 am-9:21 pm

2 stops12h 51m

$433

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United States from

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

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 month to fly to United States?

In general, July is the cheapest month to fly from London, Ontario to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $421. If you aren’t able to travel during the month of July, then book flights to United States from London, Ontario during March instead. Flights to United States in March, while not as cheap as those in July, still average around $438.

What is the cheapest day to depart on your flight to United States?

According to our data, Saturday is the cheapest day to fly to United States from London, Ontario. The lowest ticket price found for a Saturday departure recently was $353. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $439. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the morning when flights can be purchased for as low as $408. Try not to purchase tickets at noon because they tend to be around $482. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London to United States flight route?

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

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

There is only 1 cabin class available to choose from on London to United States 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 London, Ontario to United States flights?

You could potentially save up to 9% on your flight if you consider stops on a London, Ontario to United States flight.

Cheap London, Ontario to United States flight deals and tips

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

Direct flights

None
There are no direct flights from London, Ontario to United States. There are no popular flight routes from London, Ontario to United States.
Search flight deals

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

    Prices for flights from London Airport to United States refresh daily.

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

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

    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 from London Airport to United States.

  • What documentation or ID do you need to fly to United States?

    The travel and health documents you'll need for your trip to United States 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 United States. 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 London, Ontario to United States?

Best airlines flying from London, Ontario to United States

Compare and see reviews for airlines that fly from London, Ontario to United States with momondo
Airline
Rating
Free Cancellation
Price
Flair AirlinesPriceFrom $140Free CancellationRating
6.0
253 reviews
Search Flair Airlines flights
Air CanadaPriceFrom $222Free CancellationRating
7.1
10,408 reviews
Search Air Canada flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to United States. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from London to United States on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to United States from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to United States from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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