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Cheap flights from Grenoble to Belfast Intl Airport from £47

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
GNB — BFS
29 Dec — 5 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Grenoble to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Grenoble (GNB) to Belfast Intl (BFS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 November 2025.

Round-trip from

£98

One-way from

£47

Popular in

July

Cheapest in

January

Average price

£212
20/3-22/3
  • 20/3-22/3
  • 2 total stops
  • 19h 00m total
  • Grenoble to Belfast
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13/3
  • 13/3
  • 1 total stop
  • 10h 35m total
  • Grenoble to Belfast
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Highest demand for flights based on searches. 21% potential increase in price (£43 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Grenoble to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Grenoble to Belfast Intl
Explore the most affordable flight options available from Grenoble to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 November 2025.

Sat 13/1219:25GNB - BFS
1 stop14h 25mMultiple Airlines
Sat 20/1208:50BFS - GNB
1 stop8h 50mMultiple Airlines
Deal found 29/11£98
Mon 15/1211:15GNB - BFS
1 stop8h 00mMultiple Airlines
Thu 18/1221:05BFS - GNB
1 stop11h 45mMultiple Airlines
Deal found 28/11£144
Sun 28/1210:30GNB - BFS
2 stops21h 55mMultiple Airlines
Thu 1/121:05BFS - GNB
1 stop11h 45mMultiple Airlines
Deal found 28/11£178
Mon 29/1211:15GNB - BFS
1 stop11h 40mMultiple Airlines
Sat 3/105:45BFS - GNB
1 stop11h 55mMultiple Airlines
Deal found 28/11£274
Mon 29/1211:15GNB - BFS
1 stop9h 55mMultiple Airlines
Fri 2/121:30BFS - GNB
2 stops20h 10mMultiple Airlines
Deal found 28/11£328

Cheapflights Fare Finder

 
Customise your flight search to find flights from Grenoble to Belfast Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 November 2025.
Use the filters below to find and compare flights from Grenoble to Belfast Intl Airport that are best for you.

Fly from

Grenoble

Fly to

Belfast Intl

Route

Depart

Return

Price

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Fri 20/3

10:50-20:25

1 stop10h 35m

Belfast Intl

Sun 22/3

05:45-15:10

1 stop8h 25m

£98

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Sat 13/12

19:25-08:50

1 stop14h 25m

Belfast Intl

Sat 20/12

08:50-18:40

1 stop8h 50m

£98

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Thu 19/3

15:00-22:50

1 stop8h 50m

Belfast Intl

Sat 21/3

05:45-18:40

1 stop11h 55m

£107

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Fri 26/12

10:50-20:25

1 stop10h 35m

Belfast Intl

Sat 3/1

05:45-18:40

1 stop11h 55m

£139

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Mon 15/12

11:15-18:15

1 stop8h 00m

Belfast Intl

Thu 18/12

21:05-09:50

1 stop11h 45m

£144

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Thu 1/1

15:00-22:50

1 stop8h 50m

Belfast Intl

Sat 31/1

19:30-15:10

2 stops18h 40m

£159

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Sun 28/12

10:30-07:25

2 stops21h 55m

Belfast Intl

Thu 1/1

21:05-09:50

1 stop11h 45m

£178

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Sun 8/2

10:25-21:30

1 stop12h 05m

Belfast Intl

Sun 15/2

11:00-10:35

1 stop22h 35m

£205

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Fri 13/3

10:50-20:25

1 stop10h 35m

£47

GrenobleBelfast

GNB - BFS

GNBBFS

Grenoble

Thu 12/3

15:00-22:50

1 stop8h 50m

£51

Flights are sorted by cheapest return flights first.

Deals found on 27/11

Showing 1-10 of 11 results
1
2

Best time to book a flight from Grenoble to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Grenoble with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Grenoble to Belfast Intl Airport

What is the cheapest month to book a flight from Grenoble to Belfast Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Grenoble to Belfast Intl Airport (average of £82). Flying from Grenoble to Belfast Intl Airport in August is currently the most expensive (average of £224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Grenoble to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Grenoble to Belfast Intl?

    For a flight from Grenoble to Belfast Intl, you will be flying from Grenoble. Grenoble (GNB) is just 22.6 mi from the center of the city. Grenoble is the only Grenoble airport and it handles 0 outbound flights to Belfast Intl per day. 0 airlines have flights to Belfast Intl from Grenoble on a regular basis.

  • Can I find deals for flights from Grenoble to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Grenoble to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Grenoble to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grenoble to Belfast Intl.

  • Can I find deals for business class flights from Grenoble to Belfast Intl?

    Yes. Cheapflights offers flight deals from Grenoble to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Grenoble to Belfast Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Grenoble to Belfast Intl Airport (average of £82). Flying from Grenoble to Belfast Intl Airport in August is currently the most expensive (average of £224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Grenoble to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Grenoble to Belfast Intl?

Cheapflights helps you search for flights from Grenoble to Belfast Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Grenoble to Belfast Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Grenoble to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Grenoble to Belfast Intl with no change fees?

Certainly. Search results for flights to Belfast Intl from Grenoble shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Grenoble to Belfast Intl become cheaper?

Yes, Cheapflights offers price alerts on Grenoble to Belfast Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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