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Cheap flights from New York LaGuardia Airport to London from $221

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 10/11. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
5:35 pm - 10:00 am
LGA
-
LHR
11h 25m
1 stop
Air Canada Logo
2:05 pm - 7:36 pm
LHR
-
LGA
10h 31m
1 stop
$603Air Canada
Wed, Aug 26 - Sun, Sep 20
British Airways Logo
9:20 pm - 10:15 am
LGA
-
LHR
31h 55m
1 stop
British Airways Logo
6:05 pm - 12:00 pm
LHR
-
LGA
22h 55m
1 stop
$637British Airways
Mon, Sep 14 - Fri, Sep 18
British Airways Logo
9:20 pm - 10:15 am
LGA
-
LHR
31h 55m
1 stop
British Airways Logo
5:05 pm - 9:13 pm
LHR
-
LGA
33h 08m
1 stop
$648British Airways
Fri, Oct 2 - Tue, Oct 13
British Airways Logo
1:20 pm - 10:25 am
LGA
-
LHR
16h 05m
1 stop
British Airways Logo
5:15 pm - 8:38 am
LHR
-
LGA
20h 23m
1 stop
$658British Airways
Tue, Nov 24 - Mon, Nov 30
British Airways Logo
1:20 pm - 10:25 am
LGA
-
LHR
16h 05m
1 stop
British Airways Logo
5:15 pm - 8:38 am
LHR
-
LGA
20h 23m
1 stop
$659British Airways
Tue, Nov 24 - Mon, Nov 30
Multiple Airlines Logo
5:30 pm - 10:00 am
LGA
-
LHR
11h 30m
1 stop
Multiple Airlines Logo
8:55 am - 7:36 pm
LHR
-
LGA
15h 41m
2 stops
$662Multiple Airlines
Fri, Sep 25 - Sun, Sep 27
Multiple Airlines Logo
10:40 am - 6:30 am
LGA
-
LHR
14h 50m
1 stop
Multiple Airlines Logo
7:40 am - 7:00 pm
LHR
-
LGA
16h 20m
2 stops
$664Multiple Airlines
Wed, Aug 12 - Wed, Aug 26
Air Canada Logo
5:35 pm - 10:00 am
LGA
-
LHR
11h 25m
1 stop
Air Canada Logo
6:00 am - 7:40 pm
LHR
-
LGA
18h 40m
2 stops
$665Air Canada
Wed, Aug 26 - Fri, Aug 28
Air Canada Logo
5:35 pm - 6:30 am
LGA
-
LHR
31h 55m
1 stop
Air Canada Logo
6:00 am - 6:10 pm
LHR
-
LGA
17h 10m
2 stops
$669Air Canada
Tue, Aug 18 - Fri, Aug 21
Air Canada Logo
3:30 pm - 8:35 am
LGA
-
LHR
12h 05m
2 stops
Air Canada Logo
6:50 am - 3:46 pm
LHR
-
LGA
13h 56m
2 stops
$671Air Canada
Sat, Oct 10 - Mon, Oct 12

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British Airways flights from New York LaGuardia Airport to London Heathrow Airport

Our best British Airways deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
British Airways
Sep 14
LGA9:20 pmNew York LaGuardia
31h 55m
1 stop
LHR10:15 amLondon Heathrow
Sep 18
LHR6:05 pmLondon Heathrow
22h 55m
1 stop
LGA12:00 pmNew York LaGuardia
$637
British Airways
Oct 2
LGA9:20 pmNew York LaGuardia
31h 55m
1 stop
LHR10:15 amLondon Heathrow
Oct 13
LHR5:05 pmLondon Heathrow
33h 08m
1 stop
LGA9:13 pmNew York LaGuardia
$648
British Airways
Nov 24
LGA1:20 pmNew York LaGuardia
16h 05m
1 stop
LHR10:25 amLondon Heathrow
Nov 30
LHR5:15 pmLondon Heathrow
20h 23m
1 stop
LGA8:38 amNew York LaGuardia
$658

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
Sep 9
LGA4:25 pmNew York LaGuardia
14h 30m
1 stop
LHR11:55 amLondon Heathrow
Sep 11
LHR7:25 amLondon Heathrow
16h 36m
2 stops
LGA7:01 pmNew York LaGuardia
$672
United Airlines
Sep 5
LGA5:35 pmNew York LaGuardia
11h 25m
1 stop
LHR10:00 amLondon Heathrow
Sep 7
LHR6:50 amLondon Heathrow
16h 55m
2 stops
LGA6:45 pmNew York LaGuardia
$673
United Airlines
Sep 3
LGA10:20 amNew York LaGuardia
15h 35m
1 stop
LHR6:55 amLondon Heathrow
Sep 5
LHR6:50 amLondon Heathrow
16h 55m
2 stops
LGA6:45 pmNew York LaGuardia
$674

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 July 14, 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
Quickest round-trip

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 8/26

5:35 pm-10:00 am

1 stop11h 25m

London Heathrow

Sun 9/20

2:05 pm-7:36 pm

1 stop10h 31m

$603

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 9/14

9:20 pm-10:15 am

1 stop31h 55m

London Heathrow

Fri 9/18

6:05 pm-12:00 pm

1 stop22h 55m

$637

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 10/2

9:20 pm-10:15 am

1 stop31h 55m

London Heathrow

Tue 10/13

5:05 pm-9:13 pm

1 stop33h 08m

$648

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 11/24

1:20 pm-10:25 am

1 stop16h 05m

London Heathrow

Mon 11/30

5:15 pm-8:38 am

1 stop20h 23m

$658

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 11/24

1:20 pm-10:25 am

1 stop16h 05m

London Heathrow

Mon 11/30

5:15 pm-8:38 am

1 stop20h 23m

$659

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 9/25

5:30 pm-10:00 am

1 stop11h 30m

London Heathrow

Sun 9/27

8:55 am-7:36 pm

2 stops15h 41m

$662

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 8/12

10:40 am-6:30 am

1 stop14h 50m

London Heathrow

Wed 8/26

7:40 am-7:00 pm

2 stops16h 20m

$664

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 8/26

5:35 pm-10:00 am

1 stop11h 25m

London Heathrow

Fri 8/28

6:00 am-7:40 pm

2 stops18h 40m

$665

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 8/18

5:35 pm-6:30 am

1 stop31h 55m

London Heathrow

Fri 8/21

6:00 am-6:10 pm

2 stops17h 10m

$669

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 10/10

3:30 pm-8:35 am

2 stops12h 05m

London Heathrow

Mon 10/12

6:50 am-3:46 pm

2 stops13h 56m

$671

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 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 cheapest month to fly to London Heathrow Airport?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from New York LaGuardia Airport, with most prices found around $516. If you’re not able to fly to London Heathrow Airport in October, then November is your next best option. Flight prices from New York LaGuardia Airport to London Heathrow Airport during November average around $530.

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 $712. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $758.

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 $689. 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 $757.

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 00m

Direct flights

None
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 9h 00m
There are no direct flights from New York LaGuardia Airport to London Heathrow Airport. There are no popular flight routes from New York LaGuardia Airport to London Heathrow Airport.
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 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
United AirlinesPriceFrom $361Free CancellationRating
7.4
9,991 reviews
Search United Airlines flights
Air CanadaPriceFrom $494Free CancellationRating
7.1
11,336 reviews
Search Air Canada flights

Traveling to a place near London?

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Croydon
Stansted
Slough
Stratford-upon-Avon
Harrow
Kingston upon Thames
Watford
Brentwood
Ilford
Cobham
Folkestone
Guildford

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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