Latest deals
Insights
FAQs
Price Alerts

Cheap flights from the United States to London from C$ 324

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 22/8. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from the United States to London

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

WestJet Logo
7:35 p.m. - 5:14 a.m.SEA-YXU
6h 39m1 stop
WestJet Logo
6:00 a.m. - 8:28 p.m.YXU-SEA
17h 28m1 stop
C$ 426WestJet
Find Deal
Fri, 22 Aug - Fri, 29 Aug
WestJet Logo
5:30 p.m. - 5:12 a.m.ORD-YXU
10h 42m1 stop
WestJet Logo
8:00 p.m. - 4:43 p.m.YXU-ORD
21h 43m1 stop
C$ 439WestJet
Find Deal
Fri, 12 Sep - Mon, 15 Sep
Air Canada Logo
7:20 a.m. - 9:17 a.m.SEA-YXU
22h 57m2 stops
Air Canada Logo
6:15 a.m. - 11:00 a.m.YXU-SEA
7h 45m1 stop
C$ 567Air Canada
Find Deal
Sat, 19 Jul - Mon, 28 Jul
 Logo
6:00 a.m. - 5:14 a.m.DEN-YXU
21h 14m2 stops
 Logo
8:00 p.m. - 11:27 a.m.YXU-DEN
17h 27m1 stop
C$ 587
Find Deal
Sat, 9 Aug - Wed, 13 Aug
Air Canada Logo
2:55 p.m. - 9:17 a.m.SEA-YXU
15h 22m2 stops
Air Canada Logo
3:40 p.m. - 9:21 a.m.YXU-SEA
20h 41m2 stops
C$ 607Air Canada
Find Deal
Fri, 19 Sep - Mon, 22 Sep
 Logo
6:00 a.m. - 5:14 a.m.DEN-YXU
21h 14m2 stops
 Logo
8:00 p.m. - 11:27 a.m.YXU-DEN
17h 27m1 stop
C$ 613
Find Deal
Sat, 9 Aug - Thu, 14 Aug
United Airlines Logo
11:58 p.m. - 3:02 p.m.SEA-YXU
12h 04m2 stops
United Airlines Logo
3:40 p.m. - 10:59 p.m.YXU-SEA
10h 19m2 stops
C$ 671United Airlines
Find Deal
Sat, 19 Jul - Mon, 28 Jul
United Airlines Logo
4:55 p.m. - 3:02 p.m.SEA-YXU
19h 07m2 stops
United Airlines Logo
3:40 p.m. - 10:59 p.m.YXU-SEA
10h 19m2 stops
C$ 687United Airlines
Find Deal
Fri, 22 Aug - Fri, 29 Aug
Delta Logo
6:50 a.m. - 5:14 a.m.DEN-YXU
20h 24m2 stops
Delta Logo
6:00 a.m. - 11:49 p.m.YXU-DEN
19h 49m2 stops
C$ 981Delta
Find Deal
Fri, 8 Aug - Wed, 13 Aug
Delta Logo
12:30 p.m. - 5:14 a.m.DEN-YXU
14h 44m2 stops
Delta Logo
6:00 a.m. - 7:08 p.m.YXU-DEN
15h 08m2 stops
C$ 1,149Delta
Find Deal
Fri, 8 Aug - Wed, 13 Aug

Delta flights from United States to London, Ontario

Our best Delta deals on United States to London, Ontario flight tickets
Delta
8 Aug
DEN6:50 a.m.Denver Intl
20h 24m
2 stops
YXU5:14 a.m.London
13 Aug
YXU6:00 a.m.London
19h 49m
2 stops
DEN11:49 p.m.Denver Intl
Delta
8 Aug
DEN12:30 p.m.Denver Intl
14h 44m
2 stops
YXU5:14 a.m.London
13 Aug
YXU6:00 a.m.London
15h 08m
2 stops
DEN7:08 p.m.Denver Intl
C$ 1,149
Find similar
Delta
19 Jul
SJC11:32 a.m.San Jose
14h 42m
2 stops
YXU5:14 a.m.London
27 Jul
YXU6:00 a.m.London
13h 52m
2 stops
SJC4:52 p.m.San Jose
C$ 1,150
Find similar

WestJet flights from United States to London, Ontario

Our best WestJet deals on United States to London, Ontario flight tickets
WestJet
18 Jul
SEA7:35 p.m.Seattle/Tacoma Intl
6h 39m
1 stop
YXU5:14 a.m.London
28 Jul
YXU8:00 p.m.London
25h 38m
1 stop
SEA6:38 p.m.Seattle/Tacoma Intl
WestJet
22 Aug
SEA7:35 p.m.Seattle/Tacoma Intl
6h 39m
1 stop
YXU5:14 a.m.London
29 Aug
YXU6:00 a.m.London
17h 28m
1 stop
SEA8:28 p.m.Seattle/Tacoma Intl
WestJet
12 Sep
ORD5:30 p.m.Chicago O'Hare Intl
10h 42m
1 stop
YXU5:12 a.m.London
15 Sep
YXU8:00 p.m.London
21h 43m
1 stop
ORD4:43 p.m.Chicago O'Hare Intl

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 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 are 1 cabin classes 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?

You could potentially save up to 1% 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

C$ 324

Fastest flight time

4h 02m

Direct flights

None

Airports in London, Ontario

1 airport
The best one-way flight to London, Ontario from United States in the past 72 hours is C$ 324. The best round-trip flight deal from United States to London, Ontario found on momondo in the last 72 hours is C$ 426.
The fastest flight from United States to London, Ontario takes 4h 02m
There are no direct flights from United States to London, Ontario. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - London Airport, New York LaGuardia Airport - London Airport and Newark Airport - London Airport.
There is 1 airport near London, Ontario: London (YXU)

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

    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 United States to London Airport.

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

    The travel and health documents required for your trip to London Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from United States to London, Ontario?


Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

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

Finding the right flight to London from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for United States to London flights to just show those with flexible booking policies.

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

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

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

Of course. momondo tracks the price of United States to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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.
1 adult
Mon 14/7
Mon 21/7

Find better results for your trip to Canada