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Cheap flights from London, Ontario to the United States from $160

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 10/22. 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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Find the cheapest flights from London, Ontario to the United States

Cheap round-trip flights

WestJet Logo
6:00 am - 8:21 pmYXU-LAS
17h 21m2 stops
WestJet Logo
6:20 pm - 5:12 amLAS-YXU
7h 52m1 stop
$249WestJet
Find Deal
Sun, Oct 12 - Fri, Oct 17
WestJet Logo
6:00 am - 8:21 pmYXU-LAS
17h 21m2 stops
WestJet Logo
1:25 pm - 5:12 amLAS-YXU
12h 47m2 stops
$253WestJet
Find Deal
Sun, Oct 12 - Fri, Oct 17
WestJet Logo
8:00 pm - 5:34 pmYXU-LAS
24h 34m1 stop
WestJet Logo
6:20 pm - 5:12 amLAS-YXU
7h 52m1 stop
$254WestJet
Find Deal
Sun, Oct 12 - Fri, Oct 17
WestJet Logo
8:10 pm - 11:00 amYXU-LAX
17h 50m2 stops
WestJet Logo
7:00 am - 7:12 pmLAX-YXU
9h 12m1 stop
$280WestJet
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
5:45 am - 5:07 pmYXU-MCO
11h 22m2 stops
Air Canada Logo
8:30 am - 5:05 pmMCO-YXU
8h 35m2 stops
$304Air Canada
Find Deal
Wed, Jan 14 - Wed, Jan 21
Air Canada Logo
9:25 am - 3:15 pmYXU-MCO
5h 50m1 stop
Air Canada Logo
8:30 am - 5:05 pmMCO-YXU
8h 35m2 stops
$305Air Canada
Find Deal
Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
6:15 am - 9:57 pmYXU-LAS
18h 42m2 stops
United Airlines Logo
6:22 pm - 3:02 pmLAS-YXU
17h 40m3 stops
$343United Airlines
Find Deal
Sun, Oct 12 - Fri, Oct 17
United Airlines Logo
9:25 am - 3:17 pmYXU-LAX
8h 52m1 stop
United Airlines Logo
12:30 am - 9:21 pmLAX-YXU
17h 51m2 stops
$358United Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 24
Logo
8:00 pm - 10:03 amYXU-JFK
38h 03m2 stops
Logo
5:30 pm - 5:12 amJFK-YXU
11h 42m1 stop
$417
Find Deal
Thu, Oct 16 - Wed, Oct 22
Logo
6:00 am - 11:51 amYXU-ORD
30h 51m2 stops
Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
$417
Find Deal
Thu, Oct 2 - Sun, Oct 5

WestJet flights from London, Ontario to United States

Our best WestJet deals on London, Ontario to United States flight tickets
WestJet
Oct 12
YXU6:00 amLondon
17h 21m
2 stops
LAS8:21 pmLas Vegas Harry Reid Intl
Oct 17
LAS6:20 pmLas Vegas Harry Reid Intl
7h 52m
1 stop
YXU5:12 amLondon
$249
Find similar
WestJet
Oct 12
YXU6:00 amLondon
17h 21m
2 stops
LAS8:21 pmLas Vegas Harry Reid Intl
Oct 17
LAS1:25 pmLas Vegas Harry Reid Intl
12h 47m
2 stops
YXU5:12 amLondon
$253
Find similar
WestJet
Oct 12
YXU8:00 pmLondon
24h 34m
1 stop
LAS5:34 pmLas Vegas Harry Reid Intl
Oct 17
LAS6:20 pmLas Vegas Harry Reid Intl
7h 52m
1 stop
YXU5:12 amLondon
$254
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
Oct 12
YXU6:15 amLondon
18h 42m
2 stops
LAS9:57 pmLas Vegas Harry Reid Intl
Oct 17
LAS6:22 pmLas Vegas Harry Reid Intl
17h 40m
3 stops
YXU3:02 pmLondon
$343
Find similar
United Airlines
Jan 16
YXU9:25 amLondon
8h 52m
1 stop
LAX3:17 pmLos Angeles
Jan 24
LAX12:30 amLos Angeles
17h 51m
2 stops
YXU9:21 pmLondon
$358
Find similar
United Airlines
Jan 16
YXU5:40 pmLondon
10h 19m
2 stops
LAX12:59 amLos Angeles
Jan 24
LAX12:30 amLos Angeles
13h 35m
2 stops
YXU5:05 pmLondon
$364
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 September 15, 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

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 10/12

6:00 am-8:21 pm

2 stops17h 21m

Las Vegas Harry Reid Intl

Fri 10/17

6:20 pm-5:12 am

1 stop7h 52m

$249

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 10/12

6:00 am-8:21 pm

2 stops17h 21m

Las Vegas Harry Reid Intl

Fri 10/17

1:25 pm-5:12 am

2 stops12h 47m

$253

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 10/12

8:00 pm-5:34 pm

1 stop24h 34m

Las Vegas Harry Reid Intl

Fri 10/17

6:20 pm-5:12 am

1 stop7h 52m

$254

LondonLos Angeles

YXU - LAX

YXULAX

London

Wed 10/29

8:10 pm-11:00 am

2 stops17h 50m

Los Angeles

Wed 11/5

7:00 am-7:12 pm

1 stop9h 12m

$280

LondonOrlando

YXU - MCO

YXUMCO

London

Wed 1/14

5:45 am-5:07 pm

2 stops11h 22m

Orlando

Wed 1/21

8:30 am-5:05 pm

2 stops8h 35m

$304

LondonOrlando

YXU - MCO

YXUMCO

London

Wed 1/14

9:25 am-3:15 pm

1 stop5h 50m

Orlando

Wed 1/21

8:30 am-5:05 pm

2 stops8h 35m

$305

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 10/12

6:15 am-9:57 pm

2 stops18h 42m

Las Vegas Harry Reid Intl

Fri 10/17

6:22 pm-3:02 pm

3 stops17h 40m

$343

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 1/16

9:25 am-3:17 pm

1 stop8h 52m

Los Angeles

Sat 1/24

12:30 am-9:21 pm

2 stops17h 51m

$358

LondonNew York

YXU - JFK

YXUJFK

London

Thu 10/16

8:00 pm-10:03 am

2 stops38h 03m

New York John F Kennedy Intl

Wed 10/22

5:30 pm-5:12 am

1 stop11h 42m

$417

LondonChicago

YXU - ORD

YXUORD

London

Thu 10/2

6:00 am-11:51 am

2 stops30h 51m

Chicago O'Hare Intl

Sun 10/5

5:30 pm-5:12 am

1 stop10h 42m

$417

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
249 reviews
Search Flair Airlines flights
Air CanadaPriceFrom $222Free CancellationRating
7.1
10,000 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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