$209 Flights from New York LaGuardia (LGA) to London Heathrow (LHR)

Compare New York LaGuardia to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from New York LaGuardia to London Heathrow

Looking for a cheap last-minute deal or the best round-trip flight from New York LaGuardia to London Heathrow? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from New York LaGuardia to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like New York LaGuardia to London Heathrow flights are currently cheapest in March.

New York LaGuardia to London Heathrow: Alternative routes

Compare routes from New York LaGuardia to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

New York to London: Flight information

The things to know before you go.
Cheapest flight found$209
Cheapest month to flyMarch

Finding cheap flights from New York LaGuardia to London Heathrow: Frequently asked questions

The best price we found for a round-trip flight from New York LaGuardia to London Heathrow is $485. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from New York LaGuardia to London Heathrow. But we found flights with one or more stops from $485.
There are no flights flying from New York LaGuardia to London Heathrow, as of January 2026.
The cheapest month to fly from New York LaGuardia to London Heathrow is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from New York LaGuardia Airport to London Heathrow Airport on Tuesday, March 10, 2026.
No airlines currently offer direct flights between New York LaGuardia Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air Canada offers the cheapest flight tickets to London Heathrow.

Traveling from LaGuardia Airport (LGA) to London Heathrow Airport (LHR): what you need to know

  • London is four hours ahead of New York and is in the UTC+0 timezone.

  • Your LGA to LHR flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months such as July, it's best to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead of an international flight when you travel during a peak period in general.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from LaGuardia Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Top stopovers between LGA and LHR include:

    • Logan International Airport

    • Philadelphia International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

How to find the cheapest flights from LaGuardia Airport (LGA) to London Heathrow Airport (LHR)

  • The lowest price we've seen for a one-way LaGuardia Airport to London Heathrow Airport flight is $209. A round-trip ticket right now is $485. Depending on the availability and when you book, these fares could change.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from LGA to LHR if you book in advance. Airlines often have some great early bird discounts.

  • The 'Whole month' search function shows you the cheapest flights from LaGuardia Airport to London Heathrow Airport throughout the entire month. It's an easy way to find a bargain if your travel dates aren't set in stone.

  • Picking up cheap flights from LGA to LHR is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a lower fare pops up.

  • Tailor your flights with filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from LaGuardia Airport to London Heathrow Airport.

Handy information about LaGuardia Airport (LGA)

  • The address for LGA is Hangar 7 Center.

  • LaGuardia Airport has a strong on-time record, so flight disruptions are less likely. Departures from LGA make it to their destination as scheduled 80.0% of the time.

  • LaGuardia Airport is around 11 miles from central New York. If you're driving, catching a cab or ride-sharing from the center, it'll take you 25 minutes or so to get there, depending on the traffic.

  • The journey when using public transport will take about 1 hour.

  • Searching for a convenient hotel near LGA? If you're boarding an early flight from LaGuardia Airport to London Heathrow Airport, these accommodation options will have you moments from check-in:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • From London Heathrow Airport, London is approximately 19 miles away. It takes around 55 minutes to drive to the center.

  • When traveling on public transport, expect a journey time of around 1 hour.

When to fly to London Heathrow Airport (LHR)

  • The quietest month for a flight from LaGuardia Airport to London Heathrow Airport is February, while July is the most popular. Pick the ideal time to visit London based on whether you prefer a more fast-paced or easygoing experience.

  • Lock in your flight from LaGuardia Airport to London Heathrow Airport for July if you want to go to London during its warmest month. Expect temperatures of between 52ºF and 79ºF.

  • Search for cheap tickets from LGA to LHR in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 32ºF and 48ºF on average.

Explore more of United Kingdom

  • You've seen London, now it's time to discover other parts of United Kingdom. Journey about 100 miles north-west to Birmingham to tick off its leading attractions. From Cadbury World to The Library of Birmingham and National Sea Life Centre, your itinerary will be busy.

  • Around 110 miles west of London, Bristol is another essential stop in United Kingdom. Experience the best of this destination with a visit to Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.