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Cheap Flights from Grenoble to London Heathrow

Compare Grenoble 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 Grenoble Airport to London Heathrow Airport

Looking for a cheap last-minute deal or the best round-trip flight from Grenoble Airport to London Heathrow Airport? If you want to travel next month, round-trip fares start from AED 1,686. Find the lowest prices on one-way and round-trip tickets right here.
London.AED 1,150 per passenger.Departing Fri, Mar 20, returning Fri, Mar 20.Round-trip flight with Ryanair and British Airways.Outbound indirect flight with Ryanair, departing from Grenoble on Fri, Mar 20, arriving in London Heathrow.Inbound indirect flight with British Airways, departing from London Heathrow on Fri, Mar 20, arriving in Grenoble.Price includes taxes and charges.From AED 1,150, select.
London.AED 1,224 per passenger.Departing Sat, Mar 28, returning Sat, Apr 4.Round-trip flight with Ryanair and British Airways.Outbound indirect flight with Ryanair, departing from Grenoble on Sat, Mar 28, arriving in London Heathrow.Inbound indirect flight with British Airways, departing from London Heathrow on Sat, Apr 4, arriving in Grenoble.Price includes taxes and charges.From AED 1,224, select.
London.AED 1,686 per passenger.Departing Sat, Apr 11, returning Sun, Apr 12.Round-trip flight with Jet2 and British Airways.Outbound indirect flight with Jet2, departing from Grenoble on Sat, Apr 11, arriving in London Heathrow.Inbound indirect flight with British Airways, departing from London Heathrow on Sun, Apr 12, arriving in Grenoble.Price includes taxes and charges.From AED 1,686, select.
London.AED 3,263 per passenger.Departing Sun, Dec 20, returning Sat, Jan 2.Round-trip flight with Jet2 and British Airways.Outbound indirect flight with Jet2, departing from Grenoble on Sun, Dec 20, arriving in London Heathrow.Inbound indirect flight with British Airways, departing from London Heathrow on Sat, Jan 2, arriving in Grenoble.Price includes taxes and charges.From AED 3,263, select.

Find the cheapest month to fly from Grenoble to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Grenoble to London Heathrow flights are currently cheapest in March.
Mar
from AED 1,150
Apr
from AED 1,686
May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Grenoble to London Heathrow: Alternative routes

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

London City

12km from central London
Closest
from AED 2,425
Search flights

London Heathrow

23km from central London
from AED 1,150
Search flights

London Gatwick

40km from central London
from AED 196
Search flights

London Luton

45km from central London
from AED 289
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London Stansted

49km from central London
Cheapest
from AED 181
Search flights

London Southend

57km from central London
from AED 731
Search flights

Grenoble to London: Flight information

The things to know before you go.
Cheapest flight foundAED 1,150
Cheapest month to flyMarch

Check out these London hotels

Ready to plan your stay? Other travelers rate these London hotels for cleanliness, service, and location.
Taj 51 Buckingham Gate Suites and Residences
1.24 km from city center
‎AED 2,372
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47 Park Street - Grand Residences by Marriott
1.89 km from city center
‎AED 3,373
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The July - London Victoria
1.72 km from city center
‎AED 938
Per night
Taj 51 Buckingham Gate Suites and Residences
1.24 km from city center
‎AED 2,372
Per night
47 Park Street - Grand Residences by Marriott
1.89 km from city center
‎AED 3,373
Per night
The July - London Victoria
1.72 km from city center
‎AED 938
Per night
Explore top-rated hotels

Finding cheap flights from Grenoble to London Heathrow: Frequently asked questions

The best price we found for a round-trip flight from Grenoble to London Heathrow is AED 1,150. 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 Grenoble to London Heathrow. But we found flights with one or more stops from AED 1,150.
There are no flights flying from Grenoble to London Heathrow, as of March 2026.
The cheapest month to fly from Grenoble to London Heathrow is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Grenoble Airport to London Heathrow Airport on Friday, March 20, 2026.
No airlines currently offer direct flights between Grenoble 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, Ryanair offers the cheapest flight tickets to London Heathrow.

Traveling from Grenoble-Isere Airport (GNB) to London Heathrow Airport (LHR): what you need to know

  • The average time for a direct flight from Grenoble-Isere Airport to London Heathrow Airport is 1 hour 55 minutes.

  • London is one hour behind Grenoble and observes the UTC+0 timezone.

  • Get to the airport on time so you don't miss your GNB to LHR flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • You can expect bigger queues in popular months such as March. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a wise move.

  • Jetting into London (and then discovering more of United Kingdom!) is easy with British Airways. This popular airline offers direct flights from Grenoble-Isere Airport to London Heathrow Airport.

  • The airline that passengers book most often on this route is British Airways.

  • Among carriers operating GNB to LHR flights, British Airways has the highest rate of on-time arrivals.

  • Consider adding a stopover when booking your ticket from Grenoble-Isere Airport to London Heathrow Airport. Just deselect 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here are some options between GNB and LHR:

    • Manchester Airport

    • Dublin Airport

    • Edinburgh Airport

How to find the cheapest flights from Grenoble-Isere Airport (GNB) to London Heathrow Airport (LHR)

  • At the moment, AED 447 is the cheapest price we've seen for a one-way Grenoble-Isere Airport to London Heathrow Airport flight. The best price for a return ticket is AED 1,150. Bear in mind that fares can change due to demand when booking.

  • Book one month before you travel. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from GNB to LHR.

  • The cheapest month for flights from Grenoble-Isere Airport to London Heathrow Airport is December. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.

  • Snapping up cheap flights from GNB to LHR is easy with Price Alerts. Simply set up one of these automatic alerts and we'll let you know when a lower fare pops up.

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

Handy information about Grenoble-Isere Airport (GNB)

  • Grenoble-Isere Airport is around 48 kilometers from central Grenoble. If you're catching a cab, ride-sharing or driving from the center, it'll take you 35 minutes or so to arrive, depending on the traffic.

  • Need a convenient hotel near GNB? If you're catching an early flight from Grenoble-Isere Airport to London Heathrow Airport, these accommodation options will have you sleeping moments from your check-in counter:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is approximately 31 kilometers from central London. The drive time takes around 55 minutes.

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

When to fly to London Heathrow Airport (LHR)

  • The quietest month for a flight from Grenoble-Isere Airport to London Heathrow Airport is February, while July is the busiest. Choose the best time to visit London based on whether you prefer a more fast-paced or easygoing experience.

  • When booking your flight from Grenoble-Isere Airport to London Heathrow Airport, think about the kind of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • Look for cheap tickets from GNB to LHR in January if you like traveling in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of United Kingdom

  • Birmingham is just one of the many cities in United Kingdom waiting to be explored after you've experienced London. Around 161 kilometers away to the north-west, popular attractions include Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • If you want to check out another major destination in United Kingdom, head for Bristol, about 177 kilometers west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are among its highlights.

Plan the rest of your trip from Grenoble to London

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