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Cheap flights from New York LaGuardia Airport to London from £124

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 1/12. 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 return flights

Enter your travel dates to find the best prices.
Air Canada Logo
15:20 - 07:10LGA-LHR
10h 50m1 stop
Air Canada Logo
13:25 - 19:03LHR-LGA
10h 38m1 stop
£363Air Canada
Find Deal
Mon, 17 Nov - Mon, 24 Nov
Air Canada Logo
10:35 - 07:10LGA-LHR
15h 35m1 stop
Air Canada Logo
13:25 - 21:33LHR-LGA
13h 08m1 stop
£366Air Canada
Find Deal
Mon, 1 Dec - Fri, 12 Dec
Air Canada Logo
15:20 - 07:10LGA-LHR
10h 50m1 stop
Air Canada Logo
13:25 - 19:03LHR-LGA
10h 38m1 stop
£367Air Canada
Find Deal
Mon, 17 Nov - Mon, 24 Nov
Multiple Airlines Logo
17:35 - 20:35LGA-LHR
22h 00m2 stops
Multiple Airlines Logo
13:25 - 21:33LHR-LGA
13h 08m1 stop
£376Multiple Airlines
Find Deal
Sat, 29 Nov - Sat, 6 Dec
Multiple Airlines Logo
13:05 - 07:10LGA-LHR
13h 05m1 stop
Multiple Airlines Logo
13:25 - 21:33LHR-LGA
13h 08m1 stop
£377Multiple Airlines
Find Deal
Sat, 29 Nov - Sun, 14 Dec
United Airlines Logo
19:29 - 06:40LGA-LHR
30h 11m1 stop
United Airlines Logo
13:25 - 16:59LHR-LGA
32h 34m1 stop
£380United Airlines
Find Deal
Wed, 3 Dec - Tue, 9 Dec
United Airlines Logo
19:29 - 06:40LGA-LHR
30h 11m1 stop
United Airlines Logo
13:25 - 11:57LHR-LGA
27h 32m1 stop
£386United Airlines
Find Deal
Mon, 5 Jan - Sun, 18 Jan
Virgin Atlantic Logo
16:00 - 11:25LGA-LHR
14h 25m1 stop
Virgin Atlantic Logo
06:30 - 19:45LHR-LGA
18h 15m2 stops
£396Virgin Atlantic
Find Deal
Wed, 19 Nov - Thu, 27 Nov
Delta Logo
17:03 - 08:45LGA-LHR
10h 42m1 stop
Delta Logo
09:40 - 15:30LHR-LGA
10h 50m1 stop
£401Delta
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Fri, 14 Nov - Thu, 20 Nov
Delta Logo
17:03 - 08:45LGA-LHR
10h 42m1 stop
Delta Logo
09:40 - 16:30LHR-LGA
11h 50m1 stop
£401Delta
Find Deal
Fri, 14 Nov - Sun, 23 Nov

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
17 Nov
LGA15:20New York LaGuardia
10h 50m
1 stop
LHR07:10London Heathrow
24 Nov
LHR13:25London Heathrow
10h 38m
1 stop
LGA19:03New York LaGuardia
£363
Find similar
Air Canada
1 Dec
LGA10:35New York LaGuardia
15h 35m
1 stop
LHR07:10London Heathrow
12 Dec
LHR13:25London Heathrow
13h 08m
1 stop
LGA21:33New York LaGuardia
£366
Find similar
Air Canada
17 Nov
LGA15:20New York LaGuardia
10h 50m
1 stop
LHR07:10London Heathrow
24 Nov
LHR13:25London Heathrow
10h 38m
1 stop
LGA19:03New York LaGuardia
£367
Find similar

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
3 Dec
LGA19:29New York LaGuardia
30h 11m
1 stop
LHR06:40London Heathrow
9 Dec
LHR13:25London Heathrow
32h 34m
1 stop
LGA16:59New York LaGuardia
£380
Find similar
United Airlines
8 Nov
LGA19:29New York LaGuardia
30h 11m
1 stop
LHR06:40London Heathrow
15 Nov
LHR09:00London Heathrow
34h 28m
2 stops
LGA14:28New York LaGuardia
£385
Find similar
United Airlines
5 Jan
LGA19:29New York LaGuardia
30h 11m
1 stop
LHR06:40London Heathrow
18 Jan
LHR13:25London Heathrow
27h 32m
1 stop
LGA11:57New York LaGuardia
£386
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 3 November 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

Mon 17/11

15:20-07:10

1 stop10h 50m

London Heathrow

Mon 24/11

13:25-19:03

1 stop10h 38m

£363

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 1/12

10:35-07:10

1 stop15h 35m

London Heathrow

Fri 12/12

13:25-21:33

1 stop13h 08m

£366

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 17/11

15:20-07:10

1 stop10h 50m

London Heathrow

Mon 24/11

13:25-19:03

1 stop10h 38m

£367

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 29/11

17:35-20:35

2 stops22h 00m

London Heathrow

Sat 6/12

13:25-21:33

1 stop13h 08m

£376

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 29/11

13:05-07:10

1 stop13h 05m

London Heathrow

Sun 14/12

13:25-21:33

1 stop13h 08m

£377

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 3/12

19:29-06:40

1 stop30h 11m

London Heathrow

Tue 9/12

13:25-16:59

1 stop32h 34m

£380

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 5/1

19:29-06:40

1 stop30h 11m

London Heathrow

Sun 18/1

13:25-11:57

1 stop27h 32m

£386

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 19/11

16:00-11:25

1 stop14h 25m

London Heathrow

Thu 27/11

06:30-19:45

2 stops18h 15m

£396

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 14/11

17:03-08:45

1 stop10h 42m

London Heathrow

Thu 20/11

09:40-15:30

1 stop10h 50m

£401

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 14/11

17:03-08:45

1 stop10h 42m

London Heathrow

Sun 23/11

09:40-16:30

1 stop11h 50m

£401

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 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?

In general, February 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 £345. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from New York LaGuardia Airport averaging around £365.

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 £440. 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 £504.

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 £424. 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 £486 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.

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

Direct flights

None
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.
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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 10h 21m, 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
Gatwick
Maidstone
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Colchester
Dover
Hayes
Chelmsford

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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