Cheap Flights from London to Grenoble

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Flight deals from London to Grenoble Airport

Looking for a cheap last-minute deal or the best return flight from London to Grenoble Airport? If you want to travel next month, return fares start from $176. 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 March.

Direct flights 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 found$81
Cheapest month to flyMarch
Average flight time1 hr, 44 mins
Most popular airlineeasyJet
Average flights per week22

Finding cheap flights from London to Grenoble: Frequently asked questions

The best price we found for a return flight from London to Grenoble is $85. 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 43 minutes is the average flight time from London to Grenoble.
easyJet, Ryanair and BA Euroflyer fly direct from London to Grenoble.
As of March 2026, there are 22 flights per week flying from London to Grenoble.
The cheapest month to fly from London to Grenoble is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Grenoble Airport on Saturday, 21 March 2026.
Yes – the average flight time is 1 hour and 43 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 Alpes Isere Airport (GNB): What you need to know

  • You can choose from a range of airports when organising your flight from London to Grenoble Alpes Isere Airport (GNB). Explore your options for flying out of London Gatwick Airport (LGW), London Stansted Airport (STN) and London Luton Airport (LTN).

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

  • For stress-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to catch your flight from London to GNB.

  • Travelling during a popular month like July? Major public holidays and other popular seasons can lead to longer lines at check-in and security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

Airports in London

London Heathrow Airport (LHR)

  • We make it a piece of cake to find cheap flights from London to GNB that include a stopover. To explore all your options departing from London Heathrow Airport (LHR), deselect 'Direct flights only.' Then, simply select a flight offering a stop long enough to tour your chosen city. Top stopovers between LHR and GNB include:

    • Dublin Airport (DUB)

    • Manchester Airport (MAN)

    • Warsaw Chopin Airport (WAW)

  • Located around 24 kilometres from the centre of London, LHR can be reached in about 45 minutes by car, depending on traffic. The journey on public transport will take roughly 25 minutes.

  • Planning to catch an early flight from London to Grenoble Alpes Isere Airport? Avoid the hassle of rushing to the terminal (and catch some extra z's) by picking one of these stays near London Heathrow Airport:

  • When it comes to London Heathrow Airport's on-time performance, 78% of flights complete their journey on time.

London Gatwick Airport (LGW)

  • Think about setting out from London Gatwick Airport (LGW). You can book a direct London to Grenoble Alpes Isere Airport (GNB) plane ticket with departures from here.

  • You can pick from a variety of airlines offering direct flights from London to GNB departing from LGW. Book a ticket with any of these carriers and skip the layovers:

  • On the LGW to GNB route, easyJet is the top airline in terms of bookings.

  • EasyJet ranks as the most punctual carrier operating flights between London Gatwick Airport and Grenoble Alpes Isere Airport.

  • LGW is around 48 kilometres from central London. It'll take you 1 hour 5 minutes or so to get to the airport if you're driving from the city centre. Public transport takes approximately 1 hour 20 minutes.

  • Get a head start on your holiday with an additional night away from home. Before your London to GNB flight, kick back in one of these hotels close to London Gatwick Airport:

  • Flights from London Gatwick Airport have a proven record for punctuality, with 82% of them touching down as planned.

London Stansted Airport (STN)

  • Get to your destination faster from London Stansted Airport (STN). Direct flights from London to Grenoble Alpes Isere Airport can be booked from here.

  • Ryanair is one popular carrier that offers direct London to GNB plane tickets from STN.

  • Ryanair is the airline with the highest passenger demand for flights from STN to GNB.

  • Among carriers on this route, Ryanair has the best record for on-time arrivals.

  • From central London, STN is around 56 kilometres away. It'll take you roughly 1 hour 5 minutes to reach the airport by car and 45 minutes or so if you're on public transport.

  • Take the uncertainty out of departure day — stay near London Stansted Airport and know you'll make it to your gate with time to spare. Settle in at one of these hotels the day before if you've booked an early London to Grenoble Alpes Isere Airport flight:

  • STN has a stellar on-time arrivals rating of 80%, so you can rely on your flight to stay on track and touch down when it should.

About Grenoble Alpes Isere Airport (GNB)

  • If you're coming in on a late flight from London to Grenoble Alpes Isere Airport, few things top the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and relaxing soon after at one of these hotels near GNB:

  • For the lowest price, reserve your vehicle around two weeks ahead of your London to Grenoble Alpes Isere Airport flight.

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

  • Grenoble Alpes Isere Airport is around 40 kilometres from the centre of Grenoble. It takes around 45 minutes or so to drive to the city.

  • Travelling on public transport takes roughly 1 hour 20 minutes.

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

  • $41 is the lowest price for a one-way ticket from London to Grenoble Alpes Isere Airport. A return flight starts from $81. These fares can change based on availability and demand.

  • To score cheap flights from London to GNB, book your plane ticket ten months ahead of your departure date.

  • The best month for picking up cheap London to Grenoble Alpes Isere Airport tickets is March. Use the 'Whole month' tool to compare flight prices, then select the dates that offer the biggest savings.

  • There's no need to check every day to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's a better deal on plane tickets from London to GNB.

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

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

  • It's time to work out when to book your flight from London to Grenoble Alpes Isere Airport (GNB). February is when most people travel to Grenoble. If crowds aren't your thing, head there in December.

  • The warmest month in Grenoble is July, with temperatures ranging between 10ºC and 29ºC. Lock in your London to GNB plane ticket then if that's your definition of good weather.

  • If you like travelling in cooler conditions, search for a cheap ticket from London to Grenoble Alpes Isere Airport in January when temperatures are between -6ºC and 8ºC.

More about Grenoble

  • Start your Grenoble trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from London to Grenoble Alpes Isere Airport, explore our range of accommodation options including:

  • There are so many things to discover in this city, it can be hard to know where to begin. Cathedral of Notre Dame, Basilique du Sacré-Coeur and Musée de Grenoble are major attractions which should be on any well-planned Grenoble itinerary.

Explore more of France

  • You've visited Grenoble, now it's time to explore other parts of France. Travel about 225 kilometres south to Marseille to tick off its leading sights. From Les Calanques to Calanques National Park and Basilique Notre-Dame-de-la-Garde, you'll have a packed itinerary ahead.

  • Nice is another well-known destination in France and is around 241 kilometres southeast of Grenoble. No journey is complete without dropping by Vieux-Nice, Promenade Des Anglais and Plage de Nice.

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