$238 Cheap Flights from Grenoble (GNB) to Brussels (BRU)

View $238 flight on Thu, Dec 18, 2025Opens in a new window

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

Cheap Flights from Grenoble to Brussels (GNB-BRU)

Prices were available within the past 7 days and start at $238 for one-way flights and $371 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Feb 28 - Sun, Mar 1
GNB
Grenoble
BRU
Brussels
$371 Roundtrip, found 2 days ago
$371
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Feb 28 from Grenoble to Brussels, returning Sun, Mar 1, priced at $371 found 2 days ago
British Airways
Sat, Feb 28 - Sun, Mar 1
GNB
Grenoble
BRU
Brussels
$661 Roundtrip, found 2 days ago
$661
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Feb 28 from Grenoble to Brussels, returning Sun, Mar 1, priced at $661 found 2 days ago
Flights from Grenoble (GNB) to Brussels (BRU)
Origin airport
Grenoble - Isere
Destination airport
Brussels - National
Roundtrip price
$370
Distance
384 mi

Grenoble to Brussels Flights

The cheapest times to fly from Grenoble to Brussels

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 Grenoble to Brussels are during the month of February. You can find some of the cheapest flights from Grenoble to Brussels with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Grenoble to Brussels

Sunday is one of the best days to book for cheap flights from Grenoble to Brussels: 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 Grenoble to Brussels

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 Grenoble to Brussels in 2025. You can also book with separate airlines for your outbound and return journeys, from $238 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 Grenoble to Brussels 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 Grenoble to Brussels 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.

 

Frequently asked questions

How much does a flight from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU) cost?
Lock in a cheap one-way flight from $238 or cheap return flight from $371 from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU)?
Flying in February may help you find better deals, as it's the cheapest month for flights between GNB and BRU. You'll typically find the lowest fares during the off-season.
Which airlines fly direct from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU)?
While Grenoble (GNB-Grenoble - Isere) doesn't have any direct flights to Brussels - National Airport (BRU), other airports have nonstop options. Taking off from Saint-Exupery Airport (LYS) will get you to Brussels without any detours.
What is the cheapest airline that flies from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from GNB to BRU. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU)?
You'll need to book a flight with a layover if you're traveling from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from GNB to BRU?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change based on the time of year, 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 Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU)?
To arrive at Brussels - National Airport (BRU) on time, opt for a flight that takes off from Grenoble - Isere Airport (GNB) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
Is it cheaper to buy a plane ticket from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU) last-minute?
Waiting until just before your trip to book your flight from GNB to BRU generally means paying more. While you may find some last-minute deals, there's no guarantee. Be flexible with your travel plans to boost your chances of scoring a bargain.
Is it cheaper to book a GNB to BRU flight and hotel package?
You'll typically save money by booking a GNB to BRU flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your preferred accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Grenoble - Isere Airport (GNB) to Brussels - National Airport (BRU)?
If you reserved your GNB to BRU flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.