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Cheap flights from New York LaGuardia Airport to London from C$ 321

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 5/9. 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 round-trip flights

United Airlines Logo
6:05 a.m. - 7:10 a.m.LGA-LHR
20h 05m1 stop
United Airlines Logo
6:50 a.m. - 5:07 p.m.LHR-LGA
15h 17m2 stops
C$ 666United Airlines
Find Deal
Fri, 12 Dec - Sun, 14 Dec
United Airlines Logo
7:29 p.m. - 6:55 a.m.LGA-LHR
30h 26m1 stop
United Airlines Logo
9:30 a.m. - 8:02 a.m.LHR-LGA
27h 32m1 stop
C$ 692United Airlines
Find Deal
Sat, 23 Aug - Thu, 28 Aug
United Airlines Logo
6:00 a.m. - 10:40 a.m.LGA-LHR
23h 40m1 stop
United Airlines Logo
2:05 p.m. - 9:30 a.m.LHR-LGA
24h 25m1 stop
C$ 694United Airlines
Find Deal
Sat, 23 Aug - Fri, 29 Aug
Logo
2:59 p.m. - 6:55 a.m.LGA-LHR
10h 56m1 stop
Logo
9:30 a.m. - 2:47 p.m.LHR-LGA
10h 17m1 stop
C$ 705
Find Deal
Thu, 11 Sep - Fri, 19 Sep
Lufthansa Logo
3:30 p.m. - 6:30 a.m.LGA-LHR
10h 00m1 stop
Lufthansa Logo
9:30 a.m. - 7:37 p.m.LHR-LGA
15h 07m1 stop
C$ 712Lufthansa
Find Deal
Tue, 26 Aug - Wed, 3 Sep
Lufthansa Logo
8:20 p.m. - 6:30 a.m.LGA-LHR
29h 10m1 stop
Lufthansa Logo
9:30 a.m. - 9:30 p.m.LHR-LGA
17h 00m1 stop
C$ 713Lufthansa
Find Deal
Sat, 13 Sep - Mon, 29 Sep
Virgin Atlantic Logo
6:59 p.m. - 10:30 a.m.LGA-LHR
10h 31m1 stop
Virgin Atlantic Logo
9:00 a.m. - 7:34 p.m.LHR-LGA
15h 34m2 stops
C$ 721Virgin Atlantic
Find Deal
Tue, 9 Sep - Tue, 9 Dec
Delta Logo
4:00 p.m. - 6:45 a.m.LGA-LHR
9h 45m1 stop
Delta Logo
8:40 a.m. - 7:46 p.m.LHR-LGA
16h 06m2 stops
C$ 723Delta
Find Deal
Sun, 10 Aug - Wed, 20 Aug
Virgin Atlantic Logo
4:59 p.m. - 8:55 a.m.LGA-LHR
10h 56m1 stop
Virgin Atlantic Logo
11:45 a.m. - 7:46 p.m.LHR-LGA
13h 01m1 stop
C$ 731Virgin Atlantic
Find Deal
Mon, 18 Aug - Mon, 25 Aug
Delta Logo
4:00 p.m. - 6:45 a.m.LGA-LHR
9h 45m1 stop
Delta Logo
9:00 a.m. - 9:23 p.m.LHR-LGA
17h 23m2 stops
C$ 756Delta
Find Deal
Sun, 10 Aug - Mon, 18 Aug

Virgin Atlantic flights from New York LaGuardia Airport to London Heathrow Airport

Our best Virgin Atlantic deals on New York LaGuardia Airport to London Heathrow Airport flight tickets
Virgin Atlantic
9 Sep
LGA6:59 p.m.New York LaGuardia
10h 31m
1 stop
LHR10:30 a.m.London Heathrow
9 Dec
LHR9:00 a.m.London Heathrow
15h 34m
2 stops
LGA7:34 p.m.New York LaGuardia
C$ 721
Find similar
Virgin Atlantic
18 Aug
LGA4:59 p.m.New York LaGuardia
10h 56m
1 stop
LHR8:55 a.m.London Heathrow
25 Aug
LHR11:45 a.m.London Heathrow
13h 01m
1 stop
LGA7:46 p.m.New York LaGuardia
C$ 731
Find similar
Virgin Atlantic
8 Aug
LGA6:00 p.m.New York LaGuardia
14h 30m
1 stop
LHR1:30 p.m.London Heathrow
17 Aug
LHR5:25 p.m.London Heathrow
19h 50m
1 stop
LGA8:15 a.m.New York LaGuardia
C$ 807
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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
12 Dec
LGA6:05 a.m.New York LaGuardia
20h 05m
1 stop
LHR7:10 a.m.London Heathrow
14 Dec
LHR6:50 a.m.London Heathrow
15h 17m
2 stops
LGA5:07 p.m.New York LaGuardia
C$ 666
Find similar
United Airlines
23 Aug
LGA7:29 p.m.New York LaGuardia
30h 26m
1 stop
LHR6:55 a.m.London Heathrow
28 Aug
LHR9:30 a.m.London Heathrow
27h 32m
1 stop
LGA8:02 a.m.New York LaGuardia
C$ 692
Find similar
United Airlines
13 Aug
LGA6:00 a.m.New York LaGuardia
23h 40m
1 stop
LHR10:40 a.m.London Heathrow
26 Aug
LHR2:05 p.m.London Heathrow
24h 25m
1 stop
LGA9:30 a.m.New York LaGuardia
C$ 694
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 31 July 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

Fri 12/12

6:05 a.m.-7:10 a.m.

1 stop20h 05m

London Heathrow

Sun 14/12

6:50 a.m.-5:07 p.m.

2 stops15h 17m

C$ 666

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 23/8

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

1 stop30h 26m

London Heathrow

Thu 28/8

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

1 stop27h 32m

C$ 692

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 23/8

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

1 stop23h 40m

London Heathrow

Fri 29/8

2:05 p.m.-9:30 a.m.

1 stop24h 25m

C$ 694

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 11/9

2:59 p.m.-6:55 a.m.

1 stop10h 56m

London Heathrow

Fri 19/9

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

1 stop10h 17m

C$ 705

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 26/8

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

1 stop10h 00m

London Heathrow

Wed 3/9

9:30 a.m.-7:37 p.m.

1 stop15h 07m

C$ 712

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 13/9

8:20 p.m.-6:30 a.m.

1 stop29h 10m

London Heathrow

Mon 29/9

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

1 stop17h 00m

C$ 713

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 9/9

6:59 p.m.-10:30 a.m.

1 stop10h 31m

London Heathrow

Tue 9/12

9:00 a.m.-7:34 p.m.

2 stops15h 34m

C$ 721

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 10/8

4:00 p.m.-6:45 a.m.

1 stop9h 45m

London Heathrow

Wed 20/8

8:40 a.m.-7:46 p.m.

2 stops16h 06m

C$ 723

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 18/8

4:59 p.m.-8:55 a.m.

1 stop10h 56m

London Heathrow

Mon 25/8

11:45 a.m.-7:46 p.m.

1 stop13h 01m

C$ 731

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 10/8

4:00 p.m.-6:45 a.m.

1 stop9h 45m

London Heathrow

Mon 18/8

9:00 a.m.-9:23 p.m.

2 stops17h 23m

C$ 756

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$ 608. 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$ 626.

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$ 968. 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$ 790. In the afternoon is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,012 per ticket.

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 C$ 857 when searching weeks out. 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 C$ 652 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 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

Best price found

C$ 321

Fastest flight time

9h 45m

Direct flights

None
The best one-way flight to London Heathrow Airport from New York LaGuardia Airport in the past 72 hours is C$ 321. The best round-trip flight deal from New York LaGuardia Airport to London Heathrow Airport found on momondo in the last 72 hours is C$ 666.
The fastest flight from New York LaGuardia Airport to London Heathrow Airport takes 9h 45m
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.
Search flight deals

  • 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 45m 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
Ipswich
Hounslow
Gatwick
Dartford
Poole
Canterbury
Crawley
Ilford
Wembley
Maidstone
Swindon
Chelmsford
Wokingham
Stratford-upon-Avon
Feltham
Uxbridge
Waterlooville
Newport
Basingstoke
Milton Keynes

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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