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Cheap flights from New York LaGuardia Airport to London from $279

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New York LaGuardia Airport to London departing on 10/6. 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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0 bags

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Find the cheapest flights from New York LaGuardia Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:00 pm - 9:35 am
LGA
-
LHR
12h 35m
1 stop
Air Canada Logo
9:30 am - 2:37 pm
LHR
-
LGA
10h 07m
1 stop
$667Air Canada
Wed, Jul 1 - Wed, Aug 12
Air Canada Logo
11:35 am - 6:35 am
LGA
-
LHR
14h 00m
1 stop
Air Canada Logo
8:30 am - 2:59 pm
LHR
-
LGA
11h 29m
1 stop
$671Air Canada
Mon, Jul 6 - Thu, Aug 6
Air Canada Logo
5:40 pm - 10:00 am
LGA
-
LHR
11h 20m
1 stop
Air Canada Logo
9:30 am - 7:36 pm
LHR
-
LGA
15h 06m
1 stop
$714Air Canada
Sun, May 3 - Sat, May 9
Air Canada Logo
3:30 pm - 6:30 am
LGA
-
LHR
10h 00m
1 stop
Air Canada Logo
2:05 pm - 7:37 pm
LHR
-
LGA
10h 32m
1 stop
$715Air Canada
Wed, Jul 1 - Tue, Aug 11
British Airways Logo
9:59 am - 6:20 am
LGA
-
LHR
15h 21m
1 stop
British Airways Logo
8:10 pm - 7:13 am
LHR
-
LGA
16h 03m
1 stop
$718British Airways
Sun, May 10 - Sat, May 16
Air Canada Logo
4:45 pm - 8:35 am
LGA
-
LHR
10h 50m
1 stop
Air Canada Logo
2:05 pm - 7:37 pm
LHR
-
LGA
10h 32m
1 stop
$719Air Canada
Mon, Jun 29 - Mon, Aug 10
British Airways Logo
4:50 pm - 10:15 am
LGA
-
LHR
12h 25m
1 stop
British Airways Logo
2:25 pm - 8:49 pm
LHR
-
LGA
11h 24m
1 stop
$720British Airways
Wed, Sep 30 - Sun, Oct 4
Air Canada Logo
7:55 pm - 11:50 am
LGA
-
LHR
10h 55m
1 stop
Air Canada Logo
8:30 am - 6:10 pm
LHR
-
LGA
14h 40m
1 stop
$722Air Canada
Mon, Jun 29 - Sun, Aug 9
Air Canada Logo
3:30 pm - 6:30 am
LGA
-
LHR
10h 00m
1 stop
Air Canada Logo
9:30 am - 2:38 pm
LHR
-
LGA
10h 08m
1 stop
$731Air Canada
Fri, May 8 - Fri, May 15
Air Canada Logo
3:30 pm - 6:30 am
LGA
-
LHR
10h 00m
1 stop
Air Canada Logo
2:05 pm - 7:36 pm
LHR
-
LGA
10h 31m
1 stop
$732Air Canada
Fri, May 8 - Mon, May 11

Air Canada flights from New York LaGuardia Airport to London Heathrow Airport

Our best Air Canada deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
Air Canada
Apr 26
LGA8:45 pmNew York LaGuardia
10h 05m
1 stop
LHR11:50 amLondon Heathrow
Apr 28
LHR9:30 amLondon Heathrow
12h 28m
1 stop
LGA4:58 pmNew York LaGuardia
$613
Air Canada
Jul 1
LGA4:00 pmNew York LaGuardia
12h 35m
1 stop
LHR9:35 amLondon Heathrow
Aug 12
LHR9:30 amLondon Heathrow
10h 07m
1 stop
LGA2:37 pmNew York LaGuardia
$667
Air Canada
Jul 6
LGA11:35 amNew York LaGuardia
14h 00m
1 stop
LHR6:35 amLondon Heathrow
Aug 6
LHR8:30 amLondon Heathrow
11h 29m
1 stop
LGA2:59 pmNew York LaGuardia
$671

United Airlines flights from New York LaGuardia Airport to London Heathrow Airport

Our best United Airlines deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
United Airlines
Apr 23
LGA6:00 amNew York LaGuardia
23h 40m
1 stop
LHR10:40 amLondon Heathrow
Apr 29
LHR2:10 pmLondon Heathrow
28h 58m
2 stops
LGA2:08 pmNew York LaGuardia
$747
United Airlines
Apr 25
LGA6:00 amNew York LaGuardia
23h 40m
1 stop
LHR10:40 amLondon Heathrow
May 4
LHR9:30 amLondon Heathrow
33h 38m
2 stops
LGA2:08 pmNew York LaGuardia
$748
United Airlines
Apr 23
LGA6:00 amNew York LaGuardia
23h 40m
1 stop
LHR10:40 amLondon Heathrow
Apr 26
LHR2:05 pmLondon Heathrow
24h 46m
1 stop
LGA9:51 amNew York LaGuardia
$750

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia Airport to London Heathrow Airport 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 April 20, 2026.
Use the filters below to find and compare flights from New York LaGuardia Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 7/1

4:00 pm-9:35 am

1 stop12h 35m

London Heathrow

Wed 8/12

9:30 am-2:37 pm

1 stop10h 07m

$667

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 7/6

11:35 am-6:35 am

1 stop14h 00m

London Heathrow

Thu 8/6

8:30 am-2:59 pm

1 stop11h 29m

$671

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 5/3

5:40 pm-10:00 am

1 stop11h 20m

London Heathrow

Sat 5/9

9:30 am-7:36 pm

1 stop15h 06m

$714

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 7/1

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Tue 8/11

2:05 pm-7:37 pm

1 stop10h 32m

$715

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 5/10

9:59 am-6:20 am

1 stop15h 21m

London Heathrow

Sat 5/16

8:10 pm-7:13 am

1 stop16h 03m

$718

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 6/29

4:45 pm-8:35 am

1 stop10h 50m

London Heathrow

Mon 8/10

2:05 pm-7:37 pm

1 stop10h 32m

$719

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 9/30

4:50 pm-10:15 am

1 stop12h 25m

London Heathrow

Sun 10/4

2:25 pm-8:49 pm

1 stop11h 24m

$720

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 6/29

7:55 pm-11:50 am

1 stop10h 55m

London Heathrow

Sun 8/9

8:30 am-6:10 pm

1 stop14h 40m

$722
Quickest round-trip

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 5/8

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Fri 5/15

9:30 am-2:38 pm

1 stop10h 08m

$731

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 5/8

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Mon 5/11

2:05 pm-7:36 pm

1 stop10h 31m

$732

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 London from

How to get the cheapest flight ticket from New York LaGuardia Airport to London Heathrow Airport

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 typical price of a round-trip flight between New York LaGuardia Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of August is, on average, the cheapest month to fly to London Heathrow Airport from New York LaGuardia Airport, with most prices found around $506. If you’re not able to fly to London Heathrow Airport in August, then November is your next best option. Flight prices from New York LaGuardia Airport to London Heathrow Airport during November average around $529.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $645. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $706.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from New York LaGuardia Airport to London Heathrow Airport in the morning for as low as $619. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $692.

When to book flights from New York LaGuardia Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from New York LaGuardia Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap New York LaGuardia Airport to London Heathrow Airport (LGA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New York LaGuardia Airport to London Heathrow Airport

Fastest flight time

10h 00m

Direct flights

Thu
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 10h 00m
Direct flights go from New York LaGuardia Airport to London Heathrow Airport on Thursday. There are no airlines offering direct flights.
Search flight deals

Frequently asked questions about flying from New York LaGuardia Airport to London Heathrow Airport

  • How far is New York LaGuardia to London Heathrow by plane?

    A flight from New York LaGuardia to London Heathrow will travel around 3438.0 mi. A reasonable flight in good conditions will take 10h 00m.

  • When did momondo last update prices for flights from New York LaGuardia Airport to London Heathrow Airport?

    Prices for flights from New York LaGuardia Airport to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from New York LaGuardia Airport to London Heathrow Airport?

  • How old do you have to be to fly from New York LaGuardia Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from New York LaGuardia Airport to London Heathrow Airport.

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

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from New York LaGuardia Airport to London Heathrow Airport?

Best airlines flying from New York LaGuardia Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from New York LaGuardia Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $494Free CancellationRating
7.1
10,943 reviews
Search Air Canada flights
United AirlinesPriceFrom $516Free CancellationRating
7.4
9,605 reviews
Search United Airlines flights
American AirlinesPriceFrom $530Free CancellationRating
7.1
11,622 reviews
Search American Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Stratford-upon-Avon
Crawley
Slough
Wembley
Stansted
Watford
Croydon
Brentwood
Dartford
Cobham
Folkestone
Guildford
Romford
Harrow

Why use momondo?

Why should I use momondo to find a flight deal from New York to London?

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 New York to London for you.

Can I find flights from New York to London with flexible booking policies on momondo?

Yes. All flights to London from New York on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from New York to London?

momondo helps you find the best flight between New York 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 New York to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for New York to London 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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