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Cheap flights from New York LaGuardia Airport to London from £209

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 28/4. 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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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
11:35 - 06:35
LGA
-
LHR
14h 00m
1 stop
Air Canada Logo
09:30 - 16:58
LHR
-
LGA
12h 28m
1 stop
£388Air Canada
Sat, 2 May - Sun, 10 May
Air Canada Logo
16:45 - 11:50
LGA
-
LHR
14h 05m
1 stop
Air Canada Logo
09:30 - 16:58
LHR
-
LGA
12h 28m
1 stop
£406Air Canada
Sun, 3 May - Sun, 10 May
Air Canada Logo
15:30 - 10:00
LGA
-
LHR
13h 30m
1 stop
Air Canada Logo
08:30 - 15:50
LHR
-
LGA
12h 20m
1 stop
£419Air Canada
Sun, 17 May - Sat, 23 May
Air Canada Logo
11:35 - 06:35
LGA
-
LHR
14h 00m
1 stop
Air Canada Logo
09:30 - 14:37
LHR
-
LGA
10h 07m
1 stop
£421Air Canada
Sat, 16 May - Tue, 26 May
Air Canada Logo
17:40 - 10:00
LGA
-
LHR
11h 20m
1 stop
Air Canada Logo
14:10 - 22:36
LHR
-
LGA
13h 26m
1 stop
£439Air Canada
Sun, 17 May - Sun, 24 May
Air Canada Logo
16:45 - 09:35
LGA
-
LHR
11h 50m
1 stop
Air Canada Logo
14:10 - 20:59
LHR
-
LGA
11h 49m
1 stop
£442Air Canada
Fri, 15 May - Tue, 26 May
Air Canada Logo
16:00 - 09:35
LGA
-
LHR
12h 35m
1 stop
Air Canada Logo
14:05 - 21:30
LHR
-
LGA
12h 25m
1 stop
£448Air Canada
Thu, 21 May - Tue, 26 May
Air Canada Logo
15:30 - 06:30
LGA
-
LHR
10h 00m
1 stop
Air Canada Logo
12:05 - 21:30
LHR
-
LGA
14h 25m
1 stop
£454Air Canada
Fri, 22 May - Mon, 25 May
Air Canada Logo
16:45 - 08:35
LGA
-
LHR
10h 50m
1 stop
Air Canada Logo
09:30 - 16:58
LHR
-
LGA
12h 28m
1 stop
£455Air Canada
Fri, 22 May - Tue, 26 May
Air Canada Logo
16:00 - 09:35
LGA
-
LHR
12h 35m
1 stop
Air Canada Logo
09:30 - 14:37
LHR
-
LGA
10h 07m
1 stop
£462Air Canada
Thu, 2 Jul - Sun, 6 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
2 May
LGA11:35New York LaGuardia
14h 00m
1 stop
LHR06:35London Heathrow
10 May
LHR09:30London Heathrow
12h 28m
1 stop
LGA16:58New York LaGuardia
£388
Air Canada
3 May
LGA16:45New York LaGuardia
14h 05m
1 stop
LHR11:50London Heathrow
10 May
LHR09:30London Heathrow
12h 28m
1 stop
LGA16:58New York LaGuardia
£406
Air Canada
17 May
LGA15:30New York LaGuardia
13h 30m
1 stop
LHR10:00London Heathrow
23 May
LHR08:30London Heathrow
12h 20m
1 stop
LGA15:50New York LaGuardia
£419

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
31 Mar
LGA16:05New York LaGuardia
10h 55m
1 stop
LHR08:00London Heathrow
7 Apr
LHR11:00London Heathrow
12h 49m
1 stop
LGA18:49New York LaGuardia
£541
American Airlines
1 Apr
LGA16:05New York LaGuardia
10h 55m
1 stop
LHR08:00London Heathrow
10 Apr
LHR14:30London Heathrow
11h 19m
1 stop
LGA20:49New York LaGuardia
£543
American Airlines
3 Apr
LGA16:05New York LaGuardia
10h 55m
1 stop
LHR08:00London Heathrow
10 Apr
LHR14:30London Heathrow
11h 19m
1 stop
LGA20:49New York LaGuardia
£551

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 23 March 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 return flight

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 2/5

11:35-06:35

1 stop14h 00m

London Heathrow

Sun 10/5

09:30-16:58

1 stop12h 28m

£388

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 3/5

16:45-11:50

1 stop14h 05m

London Heathrow

Sun 10/5

09:30-16:58

1 stop12h 28m

£406

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 17/5

15:30-10:00

1 stop13h 30m

London Heathrow

Sat 23/5

08:30-15:50

1 stop12h 20m

£419

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 16/5

11:35-06:35

1 stop14h 00m

London Heathrow

Tue 26/5

09:30-14:37

1 stop10h 07m

£421

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 17/5

17:40-10:00

1 stop11h 20m

London Heathrow

Sun 24/5

14:10-22:36

1 stop13h 26m

£439

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 15/5

16:45-09:35

1 stop11h 50m

London Heathrow

Tue 26/5

14:10-20:59

1 stop11h 49m

£442

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 21/5

16:00-09:35

1 stop12h 35m

London Heathrow

Tue 26/5

14:05-21:30

1 stop12h 25m

£448

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 22/5

15:30-06:30

1 stop10h 00m

London Heathrow

Mon 25/5

12:05-21:30

1 stop14h 25m

£454

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 22/5

16:45-08:35

1 stop10h 50m

London Heathrow

Tue 26/5

09:30-16:58

1 stop12h 28m

£455
Fastest return journey

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 2/7

16:00-09:35

1 stop12h 35m

London Heathrow

Sun 6/9

09:30-14:37

1 stop10h 07m

£462

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, August 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 £379. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from New York LaGuardia Airport averaging around £397.

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 Monday. momondo users have found tickets for Monday departures for as low as £410. 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 £457.

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 £420. 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 £455 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

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 9h 35m
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

  • 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 35m, 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
Slough
Maidstone
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Ipswich
Canterbury
Wembley
Ilford
Poole
Chelmsford
Guildford
Hayes
Dover
Folkestone

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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