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Cheap flights from New York LaGuardia Airport to London from C$ 411

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 20/8. 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

Find the cheapest flights from New York LaGuardia Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:25 p.m. - 11:55 a.m.LGA  New York LaGuardia-LHR London Heathrow
15h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
7:25 a.m. - 8:59 p.m.LHR  London Heathrow-LGA New York LaGuardia
18h 34m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
C$ 967United Airlines
Thu, 10 Sep - Sat, 12 Sep
United Airlines Logo
3:30 p.m. - 10:00 a.m.LGA  New York LaGuardia-LHR London Heathrow
13h 30m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
7:25 a.m. - 6:45 p.m.LHR  London Heathrow-LGA New York LaGuardia
16h 20m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
C$ 969United Airlines
Sun, 23 Aug - Tue, 25 Aug
United Airlines Logo
5:30 p.m. - 10:00 a.m.LGA  New York LaGuardia-LHR London Heathrow
11h 30m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:50 a.m. - 6:45 p.m.LHR  London Heathrow-LGA New York LaGuardia
16h 55m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl
C$ 970United Airlines
Fri, 11 Sep - Sun, 13 Sep
United Airlines Logo
7:29 p.m. - 6:55 a.m.LGA  New York LaGuardia-LHR London Heathrow
30h 26m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:50 a.m. - 11:30 p.m.LHR  London Heathrow-LGA New York LaGuardia
21h 40m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl
C$ 972United Airlines
Thu, 20 Aug - Sun, 23 Aug
United Airlines Logo
8:45 a.m. - 8:35 a.m.LGA  New York LaGuardia-LHR London Heathrow
42h 50m2 stops Toronto Pearson Intl Ottawa
United Airlines Logo
6:50 a.m. - 8:25 p.m.LHR  London Heathrow-LGA New York LaGuardia
18h 35m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
C$ 976United Airlines
Fri, 18 Sep - Mon, 21 Sep
United Airlines Logo
10:35 a.m. - 6:30 a.m.LGA  New York LaGuardia-LHR London Heathrow
14h 55m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
9:30 a.m. - 11:30 p.m.LHR  London Heathrow-LGA New York LaGuardia
19h 00m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
C$ 997United Airlines
Tue, 8 Sep - Wed, 9 Sep
United Airlines Logo
10:35 a.m. - 6:30 a.m.LGA  New York LaGuardia-LHR London Heathrow
14h 55m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
9:30 a.m. - 11:30 p.m.LHR  London Heathrow-LGA New York LaGuardia
19h 00m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
C$ 998United Airlines
Fri, 2 Oct - Sat, 3 Oct
United Airlines Logo
7:37 p.m. - 10:50 a.m.LGA  New York LaGuardia-LHR London Heathrow
10h 13m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
7:30 a.m. - 6:45 p.m.LHR  London Heathrow-LGA New York LaGuardia
16h 15m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
C$ 1,000United Airlines
Fri, 6 Nov - Sun, 8 Nov
United Airlines Logo
3:30 p.m. - 11:20 a.m.LGA  New York LaGuardia-LHR London Heathrow
14h 50m1 stop Toronto Pearson Intl
United Airlines Logo
7:30 a.m. - 6:32 p.m.LHR  London Heathrow-LGA New York LaGuardia
16h 02m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
C$ 1,002United Airlines
Fri, 11 Dec - Sun, 13 Dec
United Airlines Logo
3:29 p.m. - 11:55 a.m.LGA  New York LaGuardia-LHR London Heathrow
15h 26m1 stop Chicago O'Hare Intl
United Airlines Logo
7:25 a.m. - 6:45 p.m.LHR  London Heathrow-LGA New York LaGuardia
16h 20m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
C$ 1,012United Airlines
Sun, 30 Aug - Tue, 1 Sep

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

Our best Scandinavian Airlines deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
Scandinavian Airlines
21 Oct
LGA1:00 p.m.New York LaGuardia
15h 20m
2 stops
LHR9:20 a.m.London Heathrow
28 Oct
LHR7:50 p.m.London Heathrow
29h 37m
3 stops
LGA9:27 p.m.New York LaGuardia
C$ 1,123
Scandinavian Airlines
21 Oct
LGA1:00 p.m.New York LaGuardia
15h 20m
2 stops
LHR9:20 a.m.London Heathrow
28 Oct
LHR7:50 p.m.London Heathrow
29h 37m
3 stops
LGA9:27 p.m.New York LaGuardia
C$ 1,124
Scandinavian Airlines
21 Oct
LGA1:00 p.m.New York LaGuardia
15h 20m
2 stops
LHR9:20 a.m.London Heathrow
28 Oct
LHR7:50 p.m.London Heathrow
29h 37m
3 stops
LGA9:27 p.m.New York LaGuardia
C$ 1,125

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
10 Sep
LGA3:25 p.m.New York LaGuardia
15h 30m
1 stop
LHR11:55 a.m.London Heathrow
12 Sep
LHR7:25 a.m.London Heathrow
18h 34m
2 stops
LGA8:59 p.m.New York LaGuardia
C$ 967
United Airlines
23 Aug
LGA3:30 p.m.New York LaGuardia
13h 30m
1 stop
LHR10:00 a.m.London Heathrow
25 Aug
LHR7:25 a.m.London Heathrow
16h 20m
2 stops
LGA6:45 p.m.New York LaGuardia
C$ 969
United Airlines
11 Sep
LGA5:30 p.m.New York LaGuardia
11h 30m
1 stop
LHR10:00 a.m.London Heathrow
13 Sep
LHR6:50 a.m.London Heathrow
16h 55m
2 stops
LGA6:45 p.m.New York LaGuardia
C$ 970

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 7 August 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 New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Thu 10/9

3:25 p.m.-11:55 a.m.

1 stop15h 30m

London Heathrow

Sat 12/9

7:25 a.m.-8:59 p.m.

2 stops18h 34m

C$ 967

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Sun 23/8

3:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Tue 25/8

7:25 a.m.-6:45 p.m.

2 stops16h 20m

C$ 969

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Fri 11/9

5:30 p.m.-10:00 a.m.

1 stop11h 30m

London Heathrow

Sun 13/9

6:50 a.m.-6:45 p.m.

2 stops16h 55m

C$ 970

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Thu 20/8

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

1 stop30h 26m

London Heathrow

Sun 23/8

6:50 a.m.-11:30 p.m.

2 stops21h 40m

C$ 972

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Fri 18/9

8:45 a.m.-8:35 a.m.

2 stops42h 50m

London Heathrow

Mon 21/9

6:50 a.m.-8:25 p.m.

2 stops18h 35m

C$ 976

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Tue 8/9

10:35 a.m.-6:30 a.m.

1 stop14h 55m

London Heathrow

Wed 9/9

9:30 a.m.-11:30 p.m.

2 stops19h 00m

C$ 997

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Fri 2/10

10:35 a.m.-6:30 a.m.

1 stop14h 55m

London Heathrow

Sat 3/10

9:30 a.m.-11:30 p.m.

2 stops19h 00m

C$ 998
Quickest round-trip

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Fri 6/11

7:37 p.m.-10:50 a.m.

1 stop10h 13m

London Heathrow

Sun 8/11

7:30 a.m.-6:45 p.m.

2 stops16h 15m

C$ 1,000

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Fri 11/12

3:30 p.m.-11:20 a.m.

1 stop14h 50m

London Heathrow

Sun 13/12

7:30 a.m.-6:32 p.m.

2 stops16h 02m

C$ 1,002

New YorkLondon

LGA New York LaGuardia - LHR London Heathrow

LGALHR

New York LaGuardia

Sun 30/8

3:29 p.m.-11:55 a.m.

1 stop15h 26m

London Heathrow

Tue 1/9

7:25 a.m.-6:45 p.m.

2 stops16h 20m

C$ 1,012

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 November is, on average, the cheapest month to fly to London Heathrow Airport from New York LaGuardia Airport, with most prices found around C$ 741. If you aren’t able to travel to London Heathrow Airport during the month of November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of C$ 769.

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

According to our data, Saturday is the cheapest day to fly to London Heathrow Airport from New York LaGuardia Airport. The lowest ticket price found for a Saturday departure recently was C$ 987. 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 Friday, 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$ 1,164.

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 afternoon. Our users have found flights to London Heathrow Airport in the afternoon for as low as C$ 1,017. In the morning is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,069 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

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 10h 25m
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?

    The straight-line distance from New York LaGuardia to London Heathrow is 5532.8 km. 10h 25m 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
Stratford-upon-Avon
Milton Keynes
Gatwick
Poole
Northampton
Wembley
Staines-upon-Thames
Slough
Banbury
Ramsgate
Kenilworth
Swindon
Watford
Wokingham
Dartford
Salisbury
Feltham
Crawley
Croydon

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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