C$33 Cheap Flights from London (LOND) to Grenoble (GNB)

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Find the cheapest month or even day of the year to fly to Grenoble

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Flight deals from London to Grenoble

Looking for a cheap last-minute deal or the best return flight from London to Grenoble? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Grenoble

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

Which airlines fly from London to Grenoble?

London to Grenoble: Alternative routes

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

London to Grenoble: Flight information

The things to know before you go.
Cheapest flight foundC$33
Cheapest month to flyFebruary
Average flight time1 hr, 45 mins
Most popular airlineeasyJet
Average flights per week17

Finding cheap flights from London to Grenoble: Frequently asked questions

The best price we found for a return flight from London to Grenoble is C$61. 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.
1 hour and 44 minutes is the average flight time from London to Grenoble.
easyJet, Ryanair and BA Euroflyer fly direct from London to Grenoble.
As of April 2026, there are 17 flights per week flying from London to Grenoble.
The cheapest month to fly from London to Grenoble is usually February.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Grenoble Airport on Saturday, February 27, 2027.
Yes – the average flight time is 1 hour and 44 minutes.
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 Grenoble 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 Grenoble is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Grenoble is Wizz Air UK .

Travelling from London to Grenoble-Isere Airport (GNB): what you need to know

  • When planning a flight from London to Grenoble-Isere Airport (GNB), you'll have a good range of airports to jet out of. Consider London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for your departure. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).

  • Hop on a direct flight from London to Grenoble-Isere Airport and you'll be travelling for around 1 hour 53 minutes.

  • The timezone in Grenoble is UTC+1, which is 1 hour ahead of London. Grenoble-Isere Airport is located in Grenoble.

  • With 19 direct weekly flights between the two airports, London Heathrow Airport (LHR) to Grenoble-Isere Airport (GNB) is the busiest route. EasyJet operates the earliest flight at 06:00. If you prefer to make the most of your day before flying, the latest departure from LHR to GNB is with easyJet at 17:45.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Make sure you're at the airport on time to board your flight from London to GNB.

  • Popular months like July or other peak seasons mean longer lines and possible delays. Get a head start by arriving at the airport even earlier. Aim for at least four hours ahead of international flights and two hours before a domestic departure.

Airports in London

London Heathrow Airport (LHR)

  • Get there in one go from London Heathrow Airport (LHR). Direct flights from London to Grenoble-Isere Airport (GNB) operate from here.

  • If you plan to leave from LHR, you can take a direct flight from London to Grenoble-Isere Airport with British Airways.

  • A stopover is the perfect opportunity to break up your trip — and maybe even tour another city. When searching for flights from London to GNB leaving from London Heathrow Airport (LHR), deselect the 'Direct flights only' box to see where you can stop along the way. Top options include:

    • Edinburgh Airport (EDI)

    • Frederic Chopin Airport (WAW)

    • Manchester Airport (MAN)

  • From the centre of London, LHR is approximately 31 kilometres away. Use navigation apps or visit the official airport website to work out the best way to reach the terminal.

  • In search of a handy hotel close to London Heathrow Airport? If you've booked an early flight from London to Grenoble-Isere Airport, these stays will have you moments from your check-in counter:

London Gatwick Airport (LGW)

  • Searching for more options for a direct flight from London to Grenoble-Isere Airport (GNB)? Check out the fares departing from London Gatwick Airport (LGW).

  • A good selection of airlines have direct flights from London to GNB leaving from LGW. Book your favourite aisle (or window) seat with any of these carriers and you'll be there before you realize it:

  • Make the most of your vacation with a stopover on your flight from London to Grenoble-Isere Airport. Visit friends or family or tick another city off your bucket list. Whatever your plans, check out these options between London Gatwick Airport and GNB:

    • Manchester Airport (MAN)

    • Dublin Airport (DUB)

    • Edinburgh Airport (EDI)

  • Using public transport, you can travel from central London to LGW in about 1 hour and 26 minutes. The airport is roughly 80 kilometres away, and making the journey by car will take approximately 1 hour and 19 minutes.

  • You're off on vacation, so why not book an extra night away from home? Think about kicking back in one of these hotels near London Gatwick Airport the day before your flight from London to GNB:

About Grenoble-Isere Airport (GNB)

Getting from Grenoble-Isere Airport (GNB) to central Grenoble

  • Grenoble-Isere Airport to central Grenoble takes around 34 minutes by car. It's approximately 48 kilometres away. See what options are available, such as cabs, car rentals or ride-sharing services.

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

  • For a one-way ticket from London to Grenoble-Isere Airport, C$33 is the best price we've seen. You can also book a return flight from just C$61. These are currently the lowest fares but may change depending on availability.

  • To score flight tickets from London to GNB, reserve your trip 6 months ahead of your departure.

  • Plan your trip for March. That's the cheapest month for tickets from London to Grenoble-Isere Airport. If your travel dates are flexible, use the 'Whole month' tool to see the best price across each month.

  • Log into your online account or use the app to set up a Price Alert. We'll notify you straight away if there's a deal you won't want to miss. It's simple to do, and it'll save you time searching for flight tickets from London to GNB every day.

  • Customize your trip using filters. Adjust the number of stops, total duration, and departure and arrival times to find the ideal flight from London to Grenoble-Isere Airport. You can also sort the results to see the 'Fastest,' 'Best' or 'Cheapest' options first.

The best time to fly from London to Grenoble-Isere Airport (GNB)

  • March is the most popular month for flights from London to Grenoble-Isere Airport. To escape the crowds, head for Grenoble in October when it's quieter.

  • Think about the kind of weather that'll suit your plans for Grenoble. July is known as the warmest month. Lock in your flights from London to GNB during then and you can expect temperatures of between 12ºC and 29ºC.

  • If you like travelling in cooler conditions, lock in a cheap flight from London to Grenoble-Isere Airport in January when temperatures average between -6ºC and 8ºC.

More about Grenoble

  • When it comes to looking for somewhere to rest your head, you'll find the top stays in Grenoble right here. Check out these options once you've locked in your flight from London to Grenoble-Isere Airport:

  • All great journeys should include a little sightseeing. Fort de la Bastille, Musée de Grenoble and Musee de la Resistance et de la Deportation de l'Isere are must-do's during your Grenoble adventure.

Complete your Grenoble trip with a car rental

  • Hop behind the wheel of one of our car rentals in Grenoble and explore on your own terms. Easily compare rates from trusted providers in one place after booking your hotel and cheap flights from London to Grenoble-Isere Airport.

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