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Cheap flights from New York LaGuardia Airport to London from C$ 324

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 13/10. 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 round-trip flights

Logo
7:29 p.m. - 6:55 a.m.LGA-LHR
30h 26m1 stop
Logo
9:30 a.m. - 8:02 a.m.LHR-LGA
27h 32m1 stop
C$ 698
Find Deal
Thu, 2 Oct - Sun, 5 Oct
United Airlines Logo
6:00 a.m. - 10:40 a.m.LGA-LHR
23h 40m1 stop
United Airlines Logo
9:30 a.m. - 9:32 a.m.LHR-LGA
29h 02m1 stop
C$ 699United Airlines
Find Deal
Thu, 25 Sep - Thu, 2 Oct
United Airlines Logo
8:00 a.m. - 11:15 a.m.LGA-LHR
23h 15m1 stop
United Airlines Logo
1:25 p.m. - 9:52 a.m.LHR-LGA
24h 27m1 stop
C$ 706United Airlines
Find Deal
Mon, 9 Mar - Mon, 23 Mar
United Airlines Logo
6:00 a.m. - 10:50 a.m.LGA-LHR
23h 50m1 stop
United Airlines Logo
6:00 p.m. - 11:59 a.m.LHR-LGA
22h 59m1 stop
C$ 707United Airlines
Find Deal
Wed, 19 Nov - Wed, 26 Nov
Lufthansa Logo
3:30 p.m. - 6:30 a.m.LGA-LHR
10h 00m1 stop
Lufthansa Logo
2:05 p.m. - 7:37 p.m.LHR-LGA
10h 32m1 stop
C$ 709Lufthansa
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Logo
2:56 p.m. - 6:55 a.m.LGA-LHR
10h 59m1 stop
Logo
9:30 a.m. - 2:47 p.m.LHR-LGA
10h 17m1 stop
C$ 718
Find Deal
Sat, 27 Sep - Sat, 4 Oct
Delta Logo
1:59 p.m. - 6:45 a.m.LGA-LHR
11h 46m1 stop
Delta Logo
9:40 a.m. - 4:26 p.m.LHR-LGA
11h 46m1 stop
C$ 736Delta
Find Deal
Fri, 10 Oct - Mon, 13 Oct
Delta Logo
6:00 a.m. - 7:50 a.m.LGA-LHR
20h 50m1 stop
Delta Logo
1:05 p.m. - 1:25 p.m.LHR-LGA
28h 20m1 stop
C$ 747Delta
Find Deal
Fri, 6 Mar - Sun, 22 Mar
Virgin Atlantic Logo
7:59 a.m. - 6:50 a.m.LGA-LHR
17h 51m1 stop
Virgin Atlantic Logo
11:45 a.m. - 10:29 p.m.LHR-LGA
15h 44m2 stops
C$ 768Virgin Atlantic
Find Deal
Sat, 8 Nov - Fri, 14 Nov
Virgin Atlantic Logo
4:30 p.m. - 8:05 a.m.LGA-LHR
10h 35m1 stop
Virgin Atlantic Logo
11:45 a.m. - 11:37 p.m.LHR-LGA
15h 52m2 stops
C$ 796Virgin Atlantic
Find Deal
Fri, 10 Oct - Fri, 31 Oct

Delta flights from New York LaGuardia Airport to London Heathrow Airport

Our best Delta deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
Delta
28 Sep
LGA4:00 p.m.New York LaGuardia
9h 45m
1 stop
LHR6:45 a.m.London Heathrow
1 Oct
LHR9:40 a.m.London Heathrow
11h 47m
1 stop
LGA4:27 p.m.New York LaGuardia
C$ 736
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Delta
6 Mar
LGA6:00 a.m.New York LaGuardia
20h 50m
1 stop
LHR7:50 a.m.London Heathrow
22 Mar
LHR1:05 p.m.London Heathrow
28h 20m
1 stop
LGA1:25 p.m.New York LaGuardia
C$ 747
Find similar
Delta
14 Dec
LGA9:00 p.m.New York LaGuardia
9h 25m
1 stop
LHR11:25 a.m.London Heathrow
25 Dec
LHR6:30 a.m.London Heathrow
15h 40m
2 stops
LGA5:10 p.m.New York LaGuardia
C$ 761
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
25 Sep
LGA6:00 a.m.New York LaGuardia
23h 40m
1 stop
LHR10:40 a.m.London Heathrow
2 Oct
LHR9:30 a.m.London Heathrow
29h 02m
1 stop
LGA9:32 a.m.New York LaGuardia
C$ 699
Find similar
United Airlines
9 Mar
LGA8:00 a.m.New York LaGuardia
23h 15m
1 stop
LHR11:15 a.m.London Heathrow
23 Mar
LHR1:25 p.m.London Heathrow
24h 27m
1 stop
LGA9:52 a.m.New York LaGuardia
C$ 706
Find similar
United Airlines
19 Nov
LGA6:00 a.m.New York LaGuardia
23h 50m
1 stop
LHR10:50 a.m.London Heathrow
26 Nov
LHR6:00 p.m.London Heathrow
22h 59m
1 stop
LGA11:59 a.m.New York LaGuardia
C$ 707
Find similar

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 96,600 searches. Data last updated 15 September 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

Thu 2/10

7:29 p.m.-6:55 a.m.

1 stop30h 26m

London Heathrow

Sun 5/10

9:30 a.m.-8:02 a.m.

1 stop27h 32m

C$ 698

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 25/9

6:00 a.m.-10:40 a.m.

1 stop23h 40m

London Heathrow

Thu 2/10

9:30 a.m.-9:32 a.m.

1 stop29h 02m

C$ 699

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 9/3

8:00 a.m.-11:15 a.m.

1 stop23h 15m

London Heathrow

Mon 23/3

1:25 p.m.-9:52 a.m.

1 stop24h 27m

C$ 706

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 19/11

6:00 a.m.-10:50 a.m.

1 stop23h 50m

London Heathrow

Wed 26/11

6:00 p.m.-11:59 a.m.

1 stop22h 59m

C$ 707

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 15/10

3:30 p.m.-6:30 a.m.

1 stop10h 00m

London Heathrow

Wed 22/10

2:05 p.m.-7:37 p.m.

1 stop10h 32m

C$ 709

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 27/9

2:56 p.m.-6:55 a.m.

1 stop10h 59m

London Heathrow

Sat 4/10

9:30 a.m.-2:47 p.m.

1 stop10h 17m

C$ 718

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 10/10

1:59 p.m.-6:45 a.m.

1 stop11h 46m

London Heathrow

Mon 13/10

9:40 a.m.-4:26 p.m.

1 stop11h 46m

C$ 736

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 6/3

6:00 a.m.-7:50 a.m.

1 stop20h 50m

London Heathrow

Sun 22/3

1:05 p.m.-1:25 p.m.

1 stop28h 20m

C$ 747

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 8/11

7:59 a.m.-6:50 a.m.

1 stop17h 51m

London Heathrow

Fri 14/11

11:45 a.m.-10:29 p.m.

2 stops15h 44m

C$ 768

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 10/10

4:30 p.m.-8:05 a.m.

1 stop10h 35m

London Heathrow

Fri 31/10

11:45 a.m.-11:37 p.m.

2 stops15h 52m

C$ 796

Flights are sorted by cheapest round-trip 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?

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 C$ 580. If you aren’t able to travel to London Heathrow Airport during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 628.

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

According to our data, Thursday is the cheapest day to fly to London Heathrow Airport from New York LaGuardia Airport. The lowest ticket price found for a Thursday departure recently was C$ 964. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from New York LaGuardia Airport to London Heathrow Airport for around C$ 1,000.

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

Our data shows that the cheapest New York LaGuardia Airport to London Heathrow Airport flights are usually those with departure times in the morning. Our users have found flights to London Heathrow Airport in the morning for as low as C$ 796. In the afternoon is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,002 per ticket.

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

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 straight-line distance from New York LaGuardia to London Heathrow is 5532.8 km. 9h 20m is a normal flight duration for this route.

  • 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 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Ipswich
Poole
Gatwick
Dartford
Crawley
Ilford
Wembley
Swindon
Maidstone
Chelmsford
Wokingham
Slough
Canterbury
Stratford-upon-Avon
Feltham
Hayes
Uxbridge
Waterlooville
Newport

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from New York to London . Millions of users trust and use momondo every year so you are in good hands.

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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