$297 Cheap Flights from Brussels (BRU) to Grenoble (GNB)

View $297 flight on Sun, Mar 22, 2026Opens in a new window

Popular airlines from Brussels to Grenoble (GNB-Grenoble - Isere)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Brussels to Grenoble (BRU-GNB)

Prices were available within the past 7 days and start at $297 for one-way flights and $732 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, Jan 25 - Thu, Jan 29
BRU
Brussels
GNB
Grenoble
$732 Roundtrip, found 4 days ago
$732
Roundtrip
found 4 days ago
Select British Airways flight, departing Sun, Jan 25 from Brussels to Grenoble, returning Thu, Jan 29, priced at $732 found 4 days ago

Frequently asked questions

How much does a flight from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB) cost?
Grab a cheap one-way flight from $297 or cheap return flight from $732 from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB)?
January is the least expensive month to fly from BRU to GNB. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from BRU to GNB. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB)?
There aren't any daily nonstop flights departing from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from BRU to GNB?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB)?
To avoid possible delays on the Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Grenoble from Brussels - National Airport (BRU)?
Explore your flight options from Brussels - National Airport (BRU) to Saint-Exupery Airport (LYS). This is the only airport in Grenoble you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB) last-minute?
Holding off until just before your departure to book a ticket from BRU to GNB often results in higher prices. While you may find some last-minute discounts, there's no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a BRU to GNB flight and hotel package?
Compared with arranging hotels and flights separately, booking a BRU to GNB flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place will take the hassle out of travel planning. Simply secure your flights and select from our wide range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Brussels - National Airport (BRU) to Grenoble - Isere Airport (GNB)?
It's generally possible to reschedule or cancel your BRU to GNB flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Brussels - National
Destination airport
Grenoble - Isere
Roundtrip price
$731
Distance
384 mi

Book with confidence

Brussels to Grenoble Flights

The cheapest times to fly from Brussels to Grenoble

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Brussels to Grenoble are during the month of January. You can find some of the cheapest flights from Brussels to Grenoble with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Brussels to Grenoble

Sunday is one of the best days to book for cheap flights from Brussels to Grenoble: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Brussels to Grenoble

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Brussels to Grenoble in 2026. You can also book with separate airlines for your outbound and return journeys, from $297 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Brussels to Grenoble flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Brussels to Grenoble airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Brussels to Grenoble Flights

Explore a world of travel with Expedia

*Available to One Key members.