112 € Cheap Flights from Belfast to Grenoble

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Flight deals from Belfast to Grenoble Airport

Looking for a cheap last-minute deal or the best return flight from Belfast to Grenoble Airport? If you want to travel next month, return fares start from 195 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Belfast to Grenoble

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

Belfast to Grenoble: Alternative routes

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

Belfast to Grenoble: Flight information

The things to know before you go.
Cheapest flight found70 €
Cheapest month to flyApril

Finding cheap flights from Belfast to Grenoble: Frequently asked questions

The best price we found for a return flight from Belfast to Grenoble is 112 €. 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 Belfast to Grenoble. But we found flights with one stop from 112 €.
As of March 2026, there are no flights flying from Belfast to Grenoble.
The cheapest month to fly from Belfast to Grenoble is usually February.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Grenoble Airport on Sunday, 7 February 2027.
No airlines currently offer direct flights between Belfast and Grenoble 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 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 Ryanair .

Flying from Belfast to Grenoble Alpes Isere Airport (GNB): What you need to know

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

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your flight from Belfast to GNB.

  • Flying over a peak time like June? School holidays and other high seasons can mean longer lines and delays at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

Airports in Belfast

Belfast International Airport (BFS)

  • Stopovers are the perfect opportunity to break up your trip and perhaps even visit a new city. When browsing cheap flights from Belfast to GNB departing from Belfast International Airport (BFS), deselect the 'Direct flights only' box to get ideas for where to visit along the way. Some popular options include:

    • Manchester Airport (MAN)

    • London Stansted Airport (STN)

    • Birmingham Airport (BHX)

  • BFS is around 19 kilometres from central Belfast. If you're catching a taxi, driving or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the journey time to be around 45 minutes.

  • Searching for a convenient hotel close to Belfast International Airport? If you've booked an early flight from Belfast to Grenoble Alpes Isere Airport, these accommodation options will have you sleeping conveniently close to check-in:

  • When it comes to Belfast International Airport's on-time performance, 68% of flights meet their scheduled arrival time.

George Best Belfast City Airport (BHD)

  • Make the most of your trip with a stopover on your flight from Belfast to Grenoble Alpes Isere Airport. Here's where you can connect between George Best Belfast City Airport and GNB:

    • London Heathrow Airport (LHR)

    • London Luton Airport (LTN)

    • Bristol Airport (BRS)

  • BHD is around 5 kilometres from central Belfast. It'll take 15 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 25 minutes.

  • Get your holiday started early with an extra night away from home. Before your Belfast to GNB flight, kick back in one of these hotels near George Best Belfast City Airport:

  • George Best Belfast City Airport has an on-time performance of 69%. This figure sheds light on how frequently flights that depart from this airport arrive at their destination on time.

About Grenoble Alpes Isere Airport (GNB)

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

  • From Grenoble Alpes Isere Airport, central Grenoble is around 40 kilometres away. It takes about 45 minutes to reach the city centre by car.

  • It takes roughly 1 hour 20 minutes to get there using public transport.

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

  • Right now, 70 € is the lowest price we've found for a one-way ticket from Belfast to Grenoble Alpes Isere Airport. The cheapest price for a return flight is 112 €. Keep in mind fares may change due to demand at the time of booking.

  • Don't wait until the last minute. You're more likely to find cheap flights from Belfast to GNB if you book early. Airlines often offer some fantastic early bird deals.

  • If you can be flexible with your travel plans, try using the 'Whole month' search tool. It'll give you the cheapest price across every month when searching for your Belfast to Grenoble Alpes Isere Airport ticket.

  • Save time searching for cheap plane tickets from Belfast to GNB by setting up a Price Alert. We'll send you an email or notification on the app when fares go down.

  • Nail down a great price on a flight from Belfast to Grenoble Alpes Isere Airport with the help of the filters. Choose your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest.'

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

  • February is when most people book flights from Belfast to Grenoble Alpes Isere Airport (GNB). Visit Grenoble in April for a quieter experience.

  • The warmest month in Grenoble is July, with temperatures ranging between 12ºC (54ºF) and 29ºC (84ºF). Book your Belfast to GNB plane ticket then if that's your definition of good weather.

  • Look for cheap tickets from Belfast to Grenoble Alpes Isere Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 8ºC (46ºF).

More about Grenoble

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in Grenoble right here. Browse these hotels after locking in your flight from Belfast to Grenoble Alpes Isere Airport:

  • There are so many things to discover in this city, it can be tricky to know where to start. Alps Mountain Guide, Cathedral of Notre Dame and Basilique du Sacré-Coeur are leading attractions which should be on every Grenoble itinerary.

Explore more of France

  • Marseille is just one of the many cities in France waiting to be discovered after you've seen Grenoble. Around 225 kilometres away to the south, its top attractions include Les Calanques, Basilique Notre-Dame-de-la-Garde and Basilique du Sacre-Ceour.

  • Nice is another sought-after destination in France and is around 241 kilometres south-east of Grenoble. No journey is complete without a visit to Mission Promenade des Anglais, Vieux-Nice and Promenade Des Anglais.

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