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Cheap flights from New York LaGuardia Airport to London from $203

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 9/14. 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 - 7:10 am
LGA
-
LHR
9h 35m
1 stop
Air Canada Logo
1:00 pm - 9:31 pm
LHR
-
LGA
13h 31m
1 stop
$592Air Canada
Sat, Oct 31 - Sun, Nov 15
Air Canada Logo
4:00 pm - 8:35 am
LGA
-
LHR
11h 35m
1 stop
Air Canada Logo
9:30 am - 2:36 pm
LHR
-
LGA
10h 06m
1 stop
$594Air Canada
Mon, Sep 21 - Sat, Sep 26
British Airways Logo
3:30 pm - 7:10 am
LGA
-
LHR
10h 40m
1 stop
British Airways Logo
10:05 am - 4:43 pm
LHR
-
LGA
11h 38m
1 stop
$600British Airways
Fri, Aug 14 - Fri, Aug 21
Air Canada Logo
3:30 pm - 8:30 am
LGA
-
LHR
12h 00m
1 stop
Air Canada Logo
3:00 pm - 10:43 pm
LHR
-
LGA
12h 43m
1 stop
$618Air Canada
Wed, Dec 30 - Sun, Jan 3
British Airways Logo
1:07 pm - 6:15 am
LGA
-
LHR
12h 08m
1 stop
British Airways Logo
5:15 pm - 9:13 pm
LHR
-
LGA
31h 58m
1 stop
$641British Airways
Wed, Oct 21 - Wed, Oct 28
British Airways Logo
10:16 am - 6:15 am
LGA
-
LHR
14h 59m
1 stop
British Airways Logo
5:15 pm - 9:06 am
LHR
-
LGA
19h 51m
1 stop
$643British Airways
Wed, Oct 21 - Mon, Oct 26
Air Canada Logo
4:45 pm - 11:50 am
LGA
-
LHR
14h 05m
1 stop
Air Canada Logo
2:05 pm - 7:36 pm
LHR
-
LGA
10h 31m
1 stop
$644Air Canada
Fri, Aug 28 - Mon, Sep 14
United Airlines Logo
6:30 am - 10:00 am
LGA
-
LHR
22h 30m
1 stop
United Airlines Logo
6:50 am - 11:30 pm
LHR
-
LGA
21h 40m
2 stops
$693United Airlines
Fri, Aug 21 - Sun, Aug 23
United Airlines Logo
1:10 pm - 7:10 am
LGA
-
LHR
13h 00m
1 stop
United Airlines Logo
6:50 am - 6:45 pm
LHR
-
LGA
16h 55m
2 stops
$693United Airlines
Sun, Nov 8 - Tue, Nov 10
United Airlines Logo
3:30 pm - 10:00 am
LGA
-
LHR
13h 30m
1 stop
United Airlines Logo
6:50 am - 5:25 pm
LHR
-
LGA
15h 35m
2 stops
$693United Airlines
Fri, Sep 25 - Sun, Sep 27

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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 25
LGA3:30 pmNew York LaGuardia
13h 30m
1 stop
LHR10:00 amLondon Heathrow
Sep 27
LHR6:50 amLondon Heathrow
15h 35m
2 stops
LGA5:25 pmNew York LaGuardia
$693
United Airlines
Aug 21
LGA3:29 pmNew York LaGuardia
12h 31m
1 stop
LHR9:00 amLondon Heathrow
Aug 23
LHR6:50 amLondon Heathrow
16h 55m
2 stops
LGA6:45 pmNew York LaGuardia
$694
United Airlines
Sep 6
LGA6:29 pmNew York LaGuardia
34h 31m
2 stops
LHR10:00 amLondon Heathrow
Sep 9
LHR8:40 amLondon Heathrow
19h 50m
2 stops
LGA11:30 pmNew York LaGuardia
$695

Lufthansa flights from New York LaGuardia Airport to London Heathrow Airport

Our best Lufthansa deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
Lufthansa
Sep 18
LGA3:30 pmNew York LaGuardia
10h 00m
1 stop
LHR6:30 amLondon Heathrow
Sep 19
LHR7:30 pmLondon Heathrow
31h 00m
2 stops
LGA9:30 pmNew York LaGuardia
$710
Lufthansa
Oct 25
LGA4:20 pmNew York LaGuardia
15h 00m
1 stop
LHR11:20 amLondon Heathrow
Oct 27
LHR6:30 amLondon Heathrow
20h 13m
2 stops
LGA10:43 pmNew York LaGuardia
$719
Lufthansa
Aug 17
LGA5:35 pmNew York LaGuardia
14h 05m
2 stops
LHR12:40 pmLondon Heathrow
Aug 19
LHR9:30 amLondon Heathrow
15h 10m
1 stop
LGA7:40 pmNew York LaGuardia
$728

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 31, 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

Sat 10/31

5:35 pm-7:10 am

1 stop9h 35m

London Heathrow

Sun 11/15

1:00 pm-9:31 pm

1 stop13h 31m

$592
Quickest round-trip

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 9/21

4:00 pm-8:35 am

1 stop11h 35m

London Heathrow

Sat 9/26

9:30 am-2:36 pm

1 stop10h 06m

$594

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 8/14

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

Fri 8/21

10:05 am-4:43 pm

1 stop11h 38m

$600

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 12/30

3:30 pm-8:30 am

1 stop12h 00m

London Heathrow

Sun 1/3

3:00 pm-10:43 pm

1 stop12h 43m

$618

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 10/21

1:07 pm-6:15 am

1 stop12h 08m

London Heathrow

Wed 10/28

5:15 pm-9:13 pm

1 stop31h 58m

$641

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 10/21

10:16 am-6:15 am

1 stop14h 59m

London Heathrow

Mon 10/26

5:15 pm-9:06 am

1 stop19h 51m

$643

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 8/28

4:45 pm-11:50 am

1 stop14h 05m

London Heathrow

Mon 9/14

2:05 pm-7:36 pm

1 stop10h 31m

$644

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 8/21

6:30 am-10:00 am

1 stop22h 30m

London Heathrow

Sun 8/23

6:50 am-11:30 pm

2 stops21h 40m

$693

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 11/8

1:10 pm-7:10 am

1 stop13h 00m

London Heathrow

Tue 11/10

6:50 am-6:45 pm

2 stops16h 55m

$693

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 9/25

3:30 pm-10:00 am

1 stop13h 30m

London Heathrow

Sun 9/27

6:50 am-5:25 pm

2 stops15h 35m

$693

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 November is, on average, the cheapest month to fly to London Heathrow Airport from New York LaGuardia Airport, with most prices found around $530. If you’re not able to fly to London Heathrow Airport in November, then April is your next best option. Flight prices from New York LaGuardia Airport to London Heathrow Airport during April average around $550.

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 $728. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $771.

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 $711. 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 $773.

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 30m

Direct flights

None
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 9h 30m
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 30m.

  • 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
10,055 reviews
Search United Airlines flights
Air CanadaPriceFrom $494Free CancellationRating
7.1
11,413 reviews
Search Air Canada flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Dover
Croydon
Wembley
Stansted
Stratford-upon-Avon
Kingston upon Thames
Watford
Slough
Harrow
Cobham
Richmond
Uxbridge
Guildford
Worthing
Romford

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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