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Cheap flights from London, Ontario to the United States from C$ 236

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 30/1. 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

Enter your travel dates to find the best prices.
WestJet Logo
7:30 a.m. - 8:15 p.m.
YXU
-
LAS
39h 45m2 stops
WestJet Logo
7:05 p.m. - 6:34 a.m.
LAS
-
YXU
8h 29m1 stop
C$ 404WestJet
Fri, 23 Jan - Mon, 26 Jan
Air Canada Logo
5:10 a.m. - 10:32 a.m.
YXU
-
LAX
8h 22m1 stop
Air Canada Logo
10:55 p.m. - 8:46 a.m.
LAX
-
YXU
6h 51m1 stop
C$ 405Air Canada
Sat, 31 Jan - Sat, 7 Feb
Air Canada Logo
5:10 a.m. - 10:32 a.m.
YXU
-
LAX
8h 22m1 stop
Air Canada Logo
6:10 p.m. - 8:46 a.m.
LAX
-
YXU
11h 36m2 stops
C$ 412Air Canada
Sat, 31 Jan - Sat, 7 Feb
United Airlines Logo
5:40 p.m. - 10:16 p.m.
YXU
-
SEA
7h 36m1 stop
United Airlines Logo
8:10 a.m. - 9:21 p.m.
SEA
-
YXU
10h 11m2 stops
C$ 428United Airlines
Fri, 30 Jan - Fri, 6 Feb
WestJet Logo
7:30 a.m. - 8:22 p.m.
YXU
-
MCO
36h 52m2 stops
WestJet Logo
5:30 p.m. - 6:34 a.m.
MCO
-
YXU
13h 04m1 stop
C$ 428WestJet
Fri, 23 Jan - Tue, 27 Jan
United Airlines Logo
5:10 a.m. - 6:27 p.m.
YXU
-
SEA
16h 17m2 stops
United Airlines Logo
12:35 p.m. - 5:05 p.m.
SEA
-
YXU
25h 30m3 stops
C$ 437United Airlines
Fri, 30 Jan - Fri, 6 Feb
Air Canada Logo
5:40 p.m. - 10:31 p.m.
YXU
-
LAS
7h 51m1 stop
Air Canada Logo
11:30 p.m. - 8:46 a.m.
LAS
-
YXU
6h 16m1 stop
C$ 442Air Canada
Fri, 23 Jan - Mon, 26 Jan
Air Canada Logo
5:10 a.m. - 7:27 p.m.
YXU
-
LAX
17h 17m1 stop
Air Canada Logo
11:30 a.m. - 9:21 p.m.
LAX
-
YXU
6h 51m1 stop
C$ 470Air Canada
Mon, 12 Jan - Tue, 13 Jan
WestJet Logo
8:10 p.m. - 9:31 p.m.
YXU
-
LAS
28h 21m1 stop
WestJet Logo
1:10 p.m. - 6:34 a.m.
LAS
-
YXU
14h 24m2 stops
C$ 471WestJet
Mon, 12 Jan - Thu, 15 Jan
WestJet Logo
8:10 p.m. - 9:31 p.m.
YXU
-
LAS
28h 21m1 stop
WestJet Logo
8:00 a.m. - 6:34 a.m.
LAS
-
YXU
19h 34m1 stop
C$ 475WestJet
Wed, 14 Jan - Tue, 20 Jan

Air Canada flights from London, Ontario to United States

Our best Air Canada deals on London, Ontario to United States flight tickets
Air Canada
31 Jan
YXU5:10 a.m.London
8h 22m
1 stop
LAX10:32 a.m.Los Angeles
7 Feb
LAX10:55 p.m.Los Angeles
6h 51m
1 stop
YXU8:46 a.m.London
C$ 405
Find similar
Air Canada
31 Jan
YXU5:10 a.m.London
8h 22m
1 stop
LAX10:32 a.m.Los Angeles
7 Feb
LAX6:10 p.m.Los Angeles
11h 36m
2 stops
YXU8:46 a.m.London
C$ 412
Find similar
Air Canada
23 Jan
YXU5:40 p.m.London
7h 51m
1 stop
LAS10:31 p.m.Las Vegas Harry Reid Intl
26 Jan
LAS11:30 p.m.Las Vegas Harry Reid Intl
6h 16m
1 stop
YXU8:46 a.m.London
C$ 442
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
30 Jan
YXU5:40 p.m.London
7h 36m
1 stop
SEA10:16 p.m.Seattle/Tacoma Intl
6 Feb
SEA8:10 a.m.Seattle/Tacoma Intl
10h 11m
2 stops
YXU9:21 p.m.London
C$ 428
Find similar
United Airlines
30 Jan
YXU5:10 a.m.London
19h 02m
3 stops
SEA9:12 p.m.Seattle/Tacoma Intl
6 Feb
SEA12:35 p.m.Seattle/Tacoma Intl
25h 30m
3 stops
YXU5:05 p.m.London
C$ 437
Find similar
United Airlines
30 Jan
YXU5:40 p.m.London
7h 36m
1 stop
SEA10:16 p.m.Seattle/Tacoma Intl
6 Feb
SEA8:10 a.m.Seattle/Tacoma Intl
10h 11m
1 stop
YXU9:21 p.m.London
C$ 478
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 96,600 searches. Data last updated 18 December 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

Fri 23/1

7:30 a.m.-8:15 p.m.

2 stops39h 45m

Las Vegas Harry Reid Intl

Mon 26/1

7:05 p.m.-6:34 a.m.

1 stop8h 29m

C$ 404

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 31/1

5:10 a.m.-10:32 a.m.

1 stop8h 22m

Los Angeles

Sat 7/2

10:55 p.m.-8:46 a.m.

1 stop6h 51m

C$ 405

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 31/1

5:10 a.m.-10:32 a.m.

1 stop8h 22m

Los Angeles

Sat 7/2

6:10 p.m.-8:46 a.m.

2 stops11h 36m

C$ 412

LondonSeattle

YXU - SEA

YXUSEA

London

Fri 30/1

5:40 p.m.-10:16 p.m.

1 stop7h 36m

Seattle/Tacoma Intl

Fri 6/2

8:10 a.m.-9:21 p.m.

2 stops10h 11m

C$ 428

LondonOrlando

YXU - MCO

YXUMCO

London

Fri 23/1

7:30 a.m.-8:22 p.m.

2 stops36h 52m

Orlando

Tue 27/1

5:30 p.m.-6:34 a.m.

1 stop13h 04m

C$ 428

LondonSeattle

YXU - SEA

YXUSEA

London

Fri 30/1

5:10 a.m.-6:27 p.m.

2 stops16h 17m

Seattle/Tacoma Intl

Fri 6/2

12:35 p.m.-5:05 p.m.

3 stops25h 30m

C$ 437

LondonLas Vegas

YXU - LAS

YXULAS

London

Fri 23/1

5:40 p.m.-10:31 p.m.

1 stop7h 51m

Las Vegas Harry Reid Intl

Mon 26/1

11:30 p.m.-8:46 a.m.

1 stop6h 16m

C$ 442

LondonLos Angeles

YXU - LAX

YXULAX

London

Mon 12/1

5:10 a.m.-7:27 p.m.

1 stop17h 17m

Los Angeles

Tue 13/1

11:30 a.m.-9:21 p.m.

1 stop6h 51m

C$ 470

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 12/1

8:10 p.m.-9:31 p.m.

1 stop28h 21m

Las Vegas Harry Reid Intl

Thu 15/1

1:10 p.m.-6:34 a.m.

2 stops14h 24m

C$ 471

LondonLas Vegas

YXU - LAS

YXULAS

London

Wed 14/1

8:10 p.m.-9:31 p.m.

1 stop28h 21m

Las Vegas Harry Reid Intl

Tue 20/1

8:00 a.m.-6:34 a.m.

1 stop19h 34m

C$ 475

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 day to depart on your flight to United States?

On average, the least expensive day to fly to United States from London, Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as C$ 503. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to United States on Saturday is C$ 737.

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

Our most recent data shows that the best time of day to fly to United States is in the afternoon. Flights from London, Ontario to United States during this time can be as low as C$ 576. Flights to United States are more costly in the morning, with an average ticket price of C$ 674. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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?

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

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

Fastest flight time

4h 35m

Direct flights

None
The fastest flight from London, Ontario to United States takes 4h 35m
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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 C$ 159Free CancellationRating
6.0
255 reviews
Search Flair Airlines flights
United AirlinesPriceFrom C$ 178Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
WestJetPriceFrom C$ 241Free CancellationRating
7.2
3,204 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 304Free CancellationRating
7.1
10,532 reviews
Search Air Canada flights

Why use momondo?

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

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 from London to United States for you.

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

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

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

Once you have performed a search for London to United States flights, momondo helps you find the right one 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 from London to United States right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to United States flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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