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Cheap flights from New York LaGuardia Airport to London from $277

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 5/4. 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 New York LaGuardia Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:30 pm - 10:00 am
LGA
-
LHR
13h 30m
1 stop
Air Canada Logo
8:30 am - 3:50 pm
LHR
-
LGA
12h 20m
1 stop
$568Air Canada
Thu, May 7 - Sun, May 10
Air Canada Logo
3:30 pm - 6:30 am
LGA
-
LHR
10h 00m
1 stop
Air Canada Logo
8:30 am - 6:10 pm
LHR
-
LGA
14h 40m
1 stop
$582Air Canada
Fri, Sep 18 - Fri, Sep 25
Air Canada Logo
3:30 pm - 10:00 am
LGA
-
LHR
13h 30m
1 stop
Air Canada Logo
9:30 am - 4:58 pm
LHR
-
LGA
12h 28m
1 stop
$639Air Canada
Wed, May 13 - Sat, May 30
Air Canada Logo
4:45 pm - 8:35 am
LGA
-
LHR
10h 50m
1 stop
Air Canada Logo
2:05 pm - 9:30 pm
LHR
-
LGA
12h 25m
1 stop
$643Air Canada
Tue, May 12 - Fri, May 29
Air Canada Logo
5:40 pm - 10:00 am
LGA
-
LHR
11h 20m
1 stop
Air Canada Logo
12:05 pm - 6:25 pm
LHR
-
LGA
11h 20m
1 stop
$664Air Canada
Sat, May 16 - Thu, May 28
Air Canada Logo
4:00 pm - 9:35 am
LGA
-
LHR
12h 35m
1 stop
Air Canada Logo
2:05 pm - 9:30 pm
LHR
-
LGA
12h 25m
1 stop
$665Air Canada
Thu, May 14 - Sat, May 30
Air Canada Logo
4:00 pm - 9:35 am
LGA
-
LHR
12h 35m
1 stop
Air Canada Logo
8:30 am - 2:59 pm
LHR
-
LGA
11h 29m
1 stop
$669Air Canada
Thu, May 14 - Thu, May 28
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
$679Air Canada
Wed, May 6 - Wed, May 13
Air Canada Logo
5:40 pm - 10:00 am
LGA
-
LHR
11h 20m
1 stop
Air Canada Logo
2:05 pm - 9:30 pm
LHR
-
LGA
12h 25m
1 stop
$689Air Canada
Mon, May 4 - Tue, May 5
Air Canada Logo
3:30 pm - 10:00 am
LGA
-
LHR
13h 30m
1 stop
Air Canada Logo
9:30 am - 2:38 pm
LHR
-
LGA
10h 08m
1 stop
$690Air Canada
Wed, May 6 - Wed, May 13

Virgin Atlantic flights from New York LaGuardia Airport to London Heathrow Airport

Our best Virgin Atlantic deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
Virgin Atlantic
May 5
LGA6:00 pmNew York LaGuardia
10h 15m
1 stop
LHR9:15 amLondon Heathrow
May 12
LHR9:40 amLondon Heathrow
10h 50m
1 stop
LGA3:30 pmNew York LaGuardia
$745
Virgin Atlantic
Apr 16
LGA12:00 pmNew York LaGuardia
13h 25m
1 stop
LHR6:25 amLondon Heathrow
Apr 25
LHR11:30 amLondon Heathrow
16h 51m
2 stops
LGA11:21 pmNew York LaGuardia
$765
Virgin Atlantic
Apr 15
LGA5:00 pmNew York LaGuardia
15h 15m
1 stop
LHR1:15 pmLondon Heathrow
Apr 18
LHR11:30 amLondon Heathrow
16h 51m
2 stops
LGA11:21 pmNew York LaGuardia
$816

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
May 3
LGA6:00 amNew York LaGuardia
23h 40m
1 stop
LHR10:40 amLondon Heathrow
May 16
LHR9:30 amLondon Heathrow
27h 31m
1 stop
LGA8:01 amNew York LaGuardia
$747
United Airlines
Aug 3
LGA3:30 pmNew York LaGuardia
13h 30m
1 stop
LHR10:00 amLondon Heathrow
Aug 20
LHR6:55 amLondon Heathrow
17h 05m
2 stops
LGA7:00 pmNew York LaGuardia
$756
United Airlines
Oct 1
LGA10:29 amNew York LaGuardia
15h 26m
1 stop
LHR6:55 amLondon Heathrow
Oct 19
LHR2:05 pmLondon Heathrow
12h 25m
1 stop
LGA9:30 pmNew York LaGuardia
$758

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 9, 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

Thu 5/7

3:30 pm-10:00 am

1 stop13h 30m

London Heathrow

Sun 5/10

8:30 am-3:50 pm

1 stop12h 20m

$568

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 9/18

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Fri 9/25

8:30 am-6:10 pm

1 stop14h 40m

$582

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 5/13

3:30 pm-10:00 am

1 stop13h 30m

London Heathrow

Sat 5/30

9:30 am-4:58 pm

1 stop12h 28m

$639

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 5/12

4:45 pm-8:35 am

1 stop10h 50m

London Heathrow

Fri 5/29

2:05 pm-9:30 pm

1 stop12h 25m

$643

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 5/16

5:40 pm-10:00 am

1 stop11h 20m

London Heathrow

Thu 5/28

12:05 pm-6:25 pm

1 stop11h 20m

$664

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 5/14

4:00 pm-9:35 am

1 stop12h 35m

London Heathrow

Sat 5/30

2:05 pm-9:30 pm

1 stop12h 25m

$665

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 5/14

4:00 pm-9:35 am

1 stop12h 35m

London Heathrow

Thu 5/28

8:30 am-2:59 pm

1 stop11h 29m

$669
Quickest round-trip

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 5/6

3:30 pm-6:30 am

1 stop10h 00m

London Heathrow

Wed 5/13

9:30 am-2:38 pm

1 stop10h 08m

$679

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 5/4

5:40 pm-10:00 am

1 stop11h 20m

London Heathrow

Tue 5/5

2:05 pm-9:30 pm

1 stop12h 25m

$689

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 5/6

3:30 pm-10:00 am

1 stop13h 30m

London Heathrow

Wed 5/13

9:30 am-2:38 pm

1 stop10h 08m

$690

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 $643. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $701.

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 $617. 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 $690.

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

9h 31m

Direct flights

Sun
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 9h 31m
Direct flights go from New York LaGuardia Airport to London Heathrow Airport on Sunday. 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 9h 31m.

  • 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
10,913 reviews
Search Air Canada flights
United AirlinesPriceFrom $516Free CancellationRating
7.4
9,559 reviews
Search United Airlines flights
American AirlinesPriceFrom $530Free CancellationRating
7.1
11,562 reviews
Search American Airlines flights

Traveling to a place near London?

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

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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