Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from the United States to London from $171

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 1/8. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? 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.
Search flight deals

Find the cheapest flights from the United States to London

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

Enter your travel dates to find the best prices.
Air Canada Logo
12:10 pm - 5:05 pmMCO-YXU
4h 55m1 stop
Air Canada Logo
5:10 am - 11:15 amYXU-MCO
6h 05m1 stop
$430Air Canada
Find Deal
Fri, Jan 23 - Tue, Jan 27
Air Canada Logo
8:30 am - 9:21 pmMCO-YXU
12h 51m2 stops
Air Canada Logo
9:25 am - 3:05 pmYXU-MCO
5h 40m1 stop
$435Air Canada
Find Deal
Fri, Jan 23 - Tue, Jan 27
Air Canada Logo
9:50 pm - 8:46 amMCO-YXU
10h 56m1 stop
Air Canada Logo
5:40 pm - 11:50 pmYXU-MCO
6h 10m1 stop
$453Air Canada
Find Deal
Tue, Dec 23 - Sun, Jan 4
Air Canada Logo
4:05 pm - 9:21 pmMCO-YXU
5h 16m1 stop
Air Canada Logo
9:25 am - 3:05 pmYXU-MCO
5h 40m1 stop
$457Air Canada
Find Deal
Tue, Jan 6 - Tue, Jan 13
Multiple Airlines Logo
5:30 am - 6:34 amEWR-YXU
25h 04m3 stops
Multiple Airlines Logo
8:10 pm - 5:25 pmYXU-EWR
21h 15m3 stops
$464Multiple Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
5:30 am - 6:34 amEWR-YXU
25h 04m3 stops
Multiple Airlines Logo
8:10 pm - 5:25 pmYXU-EWR
21h 15m2 stops
$473Multiple Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
United Airlines Logo
7:15 am - 9:21 pmMCO-YXU
14h 06m2 stops
United Airlines Logo
5:10 am - 5:06 pmYXU-MCO
11h 56m2 stops
$541United Airlines
Find Deal
Tue, Dec 23 - Sun, Jan 4
WestJet Logo
2:20 pm - 7:12 pmORD-YXU
27h 52m1 stop
WestJet Logo
8:10 pm - 1:35 pmYXU-ORD
18h 25m1 stop
$575WestJet
Find Deal
Mon, Dec 8 - Thu, Dec 11
WestJet Logo
6:20 pm - 6:35 amIAH-YXU
11h 15m1 stop
WestJet Logo
8:10 pm - 5:30 pmYXU-IAH
22h 20m1 stop
$582WestJet
Find Deal
Wed, Feb 25 - Thu, Feb 26
United Airlines Logo
10:33 pm - 5:05 pmIAD-YXU
18h 32m2 stops
United Airlines Logo
9:25 am - 3:46 pmYXU-IAD
6h 21m1 stop
$689United Airlines
Find Deal
Wed, Dec 24 - Thu, Jan 1

United Airlines flights from United States to London, Ontario

Our best United Airlines deals on United States to London, Ontario flight tickets
United Airlines
Dec 23
MCO7:15 amOrlando
14h 06m
2 stops
YXU9:21 pmLondon
Jan 4
YXU5:10 amLondon
11h 56m
2 stops
MCO5:06 pmOrlando
$541
Find similar
United Airlines
Dec 24
IAD10:33 pmWashington, D.C. Dulles Intl
18h 32m
2 stops
YXU5:05 pmLondon
Jan 1
YXU9:25 amLondon
6h 21m
1 stop
IAD3:46 pmWashington, D.C. Dulles Intl
$689
Find similar
United Airlines
Jan 6
LGA11:30 amNew York LaGuardia
5h 35m
1 stop
YXU5:05 pmLondon
Jan 13
YXU5:40 pmLondon
4h 53m
1 stop
LGA10:33 pmNew York LaGuardia
$697
Find similar

Air Canada flights from United States to London, Ontario

Our best Air Canada deals on United States to London, Ontario flight tickets
Air Canada
Jan 23
MCO12:10 pmOrlando
4h 55m
1 stop
YXU5:05 pmLondon
Jan 27
YXU5:10 amLondon
6h 05m
1 stop
MCO11:15 amOrlando
$430
Find similar
Air Canada
Jan 23
MCO8:30 amOrlando
12h 51m
2 stops
YXU9:21 pmLondon
Jan 27
YXU9:25 amLondon
5h 40m
1 stop
MCO3:05 pmOrlando
$435
Find similar
Air Canada
Dec 23
MCO9:50 pmOrlando
10h 56m
1 stop
YXU8:46 amLondon
Jan 4
YXU5:40 pmLondon
6h 10m
1 stop
MCO11:50 pmOrlando
$453
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to London, Ontario 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 24, 2025.
Use the filters below to find and compare flights from the United States to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 1/23

12:10 pm-5:05 pm

1 stop4h 55m

London

Tue 1/27

5:10 am-11:15 am

1 stop6h 05m

$430

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Fri 1/23

8:30 am-9:21 pm

2 stops12h 51m

London

Tue 1/27

9:25 am-3:05 pm

1 stop5h 40m

$435

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Tue 12/23

9:50 pm-8:46 am

1 stop10h 56m

London

Sun 1/4

5:40 pm-11:50 pm

1 stop6h 10m

$453

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Tue 1/6

4:05 pm-9:21 pm

1 stop5h 16m

London

Tue 1/13

9:25 am-3:05 pm

1 stop5h 40m

$457

NewarkLondon

EWR - YXU

EWRYXU

Newark

Thu 1/8

5:30 am-6:34 am

3 stops25h 04m

London

Thu 1/15

8:10 pm-5:25 pm

3 stops21h 15m

$464

NewarkLondon

EWR - YXU

EWRYXU

Newark

Thu 1/8

5:30 am-6:34 am

3 stops25h 04m

London

Thu 1/15

8:10 pm-5:25 pm

2 stops21h 15m

$473

OrlandoLondon

MCO - YXU

MCOYXU

Orlando

Tue 12/23

7:15 am-9:21 pm

2 stops14h 06m

London

Sun 1/4

5:10 am-5:06 pm

2 stops11h 56m

$541

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 12/8

2:20 pm-7:12 pm

1 stop27h 52m

London

Thu 12/11

8:10 pm-1:35 pm

1 stop18h 25m

$575

HoustonLondon

IAH - YXU

IAHYXU

Houston George Bush Intcntl

Wed 2/25

6:20 pm-6:35 am

1 stop11h 15m

London

Thu 2/26

8:10 pm-5:30 pm

1 stop22h 20m

$582

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Wed 12/24

10:33 pm-5:05 pm

2 stops18h 32m

London

Thu 1/1

9:25 am-3:46 pm

1 stop6h 21m

$689

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

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?

  • 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?

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
WestJetPriceFrom $162Free CancellationRating
7.2
3,172 reviews
Search WestJet flights
Air CanadaPriceFrom $178Free CancellationRating
7.1
10,466 reviews
Search Air Canada flights
United AirlinesPriceFrom $183Free CancellationRating
7.4
9,036 reviews
Search United Airlines flights

Traveling 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?

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/24
Wed 12/31
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada