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Cheap flights from New York LaGuardia Airport to London from £153

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 7/9. 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 return flights

Air Canada Logo
10:15 - 06:30LGA-LHR
15h 15m1 stop
Air Canada Logo
09:30 - 16:52LHR-LGA
12h 22m1 stop
£331Air Canada
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Air Canada Logo
20:45 - 11:50LGA-LHR
10h 05m1 stop
Air Canada Logo
14:05 - 21:30LHR-LGA
12h 25m1 stop
£352Air Canada
Find Deal
Thu, 25 Sep - Wed, 1 Oct
Air Canada Logo
16:50 - 11:50LGA-LHR
14h 00m1 stop
Air Canada Logo
09:30 - 14:47LHR-LGA
10h 17m1 stop
£356Air Canada
Find Deal
Thu, 25 Sep - Wed, 1 Oct
Lufthansa Logo
15:30 - 06:30LGA-LHR
10h 00m1 stop
Lufthansa Logo
09:30 - 19:31LHR-LGA
15h 01m1 stop
£371Lufthansa
Find Deal
Tue, 26 Aug - Sat, 30 Aug
Logo
16:50 - 11:50LGA-LHR
14h 00m1 stop
Logo
14:05 - 19:37LHR-LGA
10h 32m1 stop
£374
Find Deal
Thu, 25 Sep - Wed, 1 Oct
Logo
16:50 - 11:50LGA-LHR
14h 00m1 stop
Logo
14:05 - 19:37LHR-LGA
10h 32m1 stop
£376
Find Deal
Thu, 25 Sep - Wed, 1 Oct
United Airlines Logo
06:00 - 10:40LGA-LHR
23h 40m1 stop
United Airlines Logo
09:30 - 08:02LHR-LGA
27h 32m1 stop
£379United Airlines
Find Deal
Thu, 21 Aug - Thu, 28 Aug
United Airlines Logo
06:00 - 10:40LGA-LHR
23h 40m1 stop
United Airlines Logo
09:30 - 08:02LHR-LGA
27h 32m1 stop
£380United Airlines
Find Deal
Sat, 23 Aug - Sat, 30 Aug
British Airways Logo
19:22 - 07:40LGA-LHR
31h 18m1 stop
British Airways Logo
17:15 - 12:14LHR-LGA
23h 59m1 stop
£383British Airways
Find Deal
Tue, 9 Sep - Tue, 23 Sep
Lufthansa Logo
15:30 - 06:30LGA-LHR
10h 00m1 stop
Lufthansa Logo
09:30 - 19:37LHR-LGA
15h 07m1 stop
£388Lufthansa
Find Deal
Tue, 9 Sep - Thu, 18 Sep

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
14 Sept
LGA10:15New York LaGuardia
15h 15m
1 stop
LHR06:30London Heathrow
21 Sept
LHR09:30London Heathrow
12h 22m
1 stop
LGA16:52New York LaGuardia
£331
Find similar
Air Canada
25 Sept
LGA20:45New York LaGuardia
10h 05m
1 stop
LHR11:50London Heathrow
1 Oct
LHR14:05London Heathrow
12h 25m
1 stop
LGA21:30New York LaGuardia
£352
Find similar
Air Canada
25 Sept
LGA16:50New York LaGuardia
14h 00m
1 stop
LHR11:50London Heathrow
1 Oct
LHR09:30London Heathrow
10h 17m
1 stop
LGA14:47New York LaGuardia
£356
Find similar

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

Our best American Airlines deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
American Airlines
14 Aug
LGA15:00New York LaGuardia
11h 50m
1 stop
LHR07:50London Heathrow
21 Aug
LHR09:15London Heathrow
12h 02m
1 stop
LGA16:17New York LaGuardia
£398
Find similar
American Airlines
4 Aug
LGA14:45New York LaGuardia
12h 05m
1 stop
LHR07:50London Heathrow
20 Aug
LHR08:55London Heathrow
11h 38m
1 stop
LGA15:33New York LaGuardia
£398
Find similar
American Airlines
14 Aug
LGA17:30New York LaGuardia
9h 20m
1 stop
LHR07:50London Heathrow
21 Aug
LHR08:55London Heathrow
11h 38m
1 stop
LGA15:33New York LaGuardia
£399
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 2 August 2025.
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

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 14/9

10:15-06:30

1 stop15h 15m

London Heathrow

Sun 21/9

09:30-16:52

1 stop12h 22m

£331

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 25/9

20:45-11:50

1 stop10h 05m

London Heathrow

Wed 1/10

14:05-21:30

1 stop12h 25m

£352

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 25/9

16:50-11:50

1 stop14h 00m

London Heathrow

Wed 1/10

09:30-14:47

1 stop10h 17m

£356

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 26/8

15:30-06:30

1 stop10h 00m

London Heathrow

Sat 30/8

09:30-19:31

1 stop15h 01m

£371

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 25/9

16:50-11:50

1 stop14h 00m

London Heathrow

Wed 1/10

14:05-19:37

1 stop10h 32m

£374

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 25/9

16:50-11:50

1 stop14h 00m

London Heathrow

Wed 1/10

14:05-19:37

1 stop10h 32m

£376

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 21/8

06:00-10:40

1 stop23h 40m

London Heathrow

Thu 28/8

09:30-08:02

1 stop27h 32m

£379

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 23/8

06:00-10:40

1 stop23h 40m

London Heathrow

Sat 30/8

09:30-08:02

1 stop27h 32m

£380

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 9/9

19:22-07:40

1 stop31h 18m

London Heathrow

Tue 23/9

17:15-12:14

1 stop23h 59m

£383

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 9/9

15:30-06:30

1 stop10h 00m

London Heathrow

Thu 18/9

09:30-19:37

1 stop15h 07m

£388

Flights are sorted by cheapest return 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 cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from New York LaGuardia Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £333. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from New York LaGuardia Airport averaging around £343.

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

On average, the least expensive day to fly to London Heathrow Airport from New York LaGuardia Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £439. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £492.

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 at midday. momondo users have found flights departing from New York LaGuardia Airport to London Heathrow Airport at midday for as low as £422. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £483 on average. Flights to London Heathrow Airport from New York LaGuardia Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from New York LaGuardia Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £470 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from New York LaGuardia Airport for as low as £358 on momondo.

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 return 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

Best price found

£153

Fastest flight time

9h 05m

Direct flights

None
The best one-way flight to London Heathrow Airport from New York LaGuardia Airport in the past 72 hours is £153. The best return flight deal from New York LaGuardia Airport to London Heathrow Airport found on momondo in the last 72 hours is £331.
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 9h 05m
There are no direct flights from New York LaGuardia Airport to London Heathrow Airport. Popular non-direct route for this connection is New York LaGuardia Airport - London Heathrow Airport.
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  • How far is New York LaGuardia to London Heathrow by plane?

    The distance between New York LaGuardia and London Heathrow is about 3438.0 mi. Flights usually cover this in 9h 30m, depending on flying conditions and air traffic around both airports.

  • 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 were last updated today.

  • 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 travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Northampton
Southend-on-Sea
Maidstone
Swindon
Canterbury
Gatwick
Stratford-upon-Avon
Ipswich
Ilford
Dartford
Guildford
Colchester
Worthing
Hounslow
Swanage
Salisbury

Why use momondo?

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

Finding the right flight to London from New York is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to London from New York with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from New York to London.

I’m not ready to book a flight from New York 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 New York and alert you when they change.

An easier way to manage your London Heathrow Airport trip

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