Cheapest€63.27
- Brussels Airlines BA476806:401h 16m07:56Brussels BRUGrenoble GNB
Door to door 4h 26mCO2 161.9 kgChanges 0Fixed, no changes
Traveling from Brussels to Grenoble costs €63.27 at the cheapest and takes 4h 25m door to door at the fastest, across 1 mode and 1 operator. The route covers 658 km. Cheapest is by Flight, fastest is by Flight.
At a glance
- Distance
- 658 km
- Fastest
- 4h 25m
- Average
- 4h 28m
- Services per day
- 5
- Cheapest
- €63.27
- CO2 per passenger
- 161.9 kg
Every way to make this journey
Journey times below are door to door, so they include getting to the terminal and away from it at the other end. Fares are the cheapest we currently sell on September 29, 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 4h 26m | 1h 16m | 3h 10m | €73.30 | 161.9 kg | 2 |
- 4h 26mFastest, by Flight
- €73.30Cheapest, by Flight
- 161.9 kgLowest CO2, by Flight
- 658 kmDistance traveled
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Lowest CO2€93.84
- Eurostar E154007:304h 12m11:42Bruxelles MidiLyon Part Dieu
- Trenitalia France TF422712:5353m13:46Lyon Part DieuGrenoble
Changes at Lyon, with 71 minutes between services and a walk of about 5 minutes.
Door to door 7hCO2 22.3 kgChanges 1Refundable
Today's real departures
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
No live timetable for this trip yet.
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
Prices over the next three weeks
Live from our own engine, refreshed on every request. The cheapest days for each way of traveling are marked.
| Cheapest fare by mode and day for Brussels to Grenoble | ThuSep 10 | FriSep 11 | SatSep 12 | SunSep 13 | MonSep 14 | TueSep 15 | WedSep 16 | ThuSep 17 | FriSep 18 | SatSep 19 | SunSep 20 | MonSep 21 | TueSep 22 | WedSep 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flight | €198.38 | €155.90 | €184.81 | €120.50 | €113.42 | €109.29 | €119.91 | €111.06 | €113.42 | €101.62 | €96.31 | €80.97 | €80.97 | €73.30 |
| Train | €228.59 | €219.79 | €221.44 | €153.79 | €135.09 | €135.09 | €130.69 | €153.79 | €122.99 | €148.29 | €133.99 | €95.49 | €104.29 | €108.69 |
Cheapest day: 2026-09-29 · €63.27
That is the traveling done. What happens after you walk out into Grenoble is not something we sell.
Looking for somewhere to stay in Grenoble?
The search opens on Grenoble with your nights already filled in, so it is one step to a real price.
Search Grenoble on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Brussels to Grenoble
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €70.1990 days
- €53.8360 days
- €72.3945 days
- €77.4330 days
- €84.5121 days
- €73.3014 days
- €119.917 days
- €184.813 days
- €198.381 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €53.83.
- How much it moves
- The gap between the cheapest and most expensive lead time is 269 percent. The most expensive point is €198.38, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 60 days ahead. You are inside that window.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €96.31Sun
- €80.97Mon
- €80.97Tue
- €84.51Wed
- €111.06Thu
- €113.42Fri
- €101.62Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €109.29Sep
- €72.71Oct
- €63.86Nov
- €60.91Dec
- €55.01Jan
- €63.27Feb
The route
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 20% of the services we sell on this corridor run through without a change. The remaining 80% involve one connection.
- How far it really runs
- The route covers 658 km against 639 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Turin, Strasbourg, Lyon, Marne La Vallée. The gap between arriving and leaving is 53 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 18 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Brussels at 06:40 and the last at 07:30, across 2 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Brussels
Rail
- Bruxelles Midi
- Bruxelles-Midi
- Brussels-Chapel Station
Bus
- Bruxelles Nord
- Brussels Airport
Air
- BRU
- CRL
Ferry
- Sainctelette
- Cruise Terminal
Grenoble
Rail
- Grenoble
- Grenoble railway station
- Gare de Grenoble-Universités-Gières
Bus
- Grenoble
- Grand'place
Air
- GNB
Landing at GNB after the trains have stopped is the case this solves. We do not run cars.
A car waiting when you land in Grenoble
Settled in advance, so the ride into Grenoble costs what it said it would rather than what the cab stand says.
Book a ride from GNB with Welcome PickupsOr check Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.
Who runs this route
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 Brussels Airlines | €63.27 | 4h 25m | 740 km/h | Fixed fare | Not published |
What the fare is made of
Every part of the total, so the number at checkout is the number here.
| Part | Amount | Share |
|---|---|---|
| Operator fare | €46.00 | 73% |
| Taxes | €8.28 | 13% |
| Supplier fees | €7.00 | 11% |
| Our service fee | €1.99 | 3% |
| Total you pay | €63.27 | 100% |
The flight gets in hours before any room is ready. Holding a bag is not what we sell.
Where to leave your bags in Grenoble
Most of the points near Grenoble open before the first train and close after the last one.
Check Grenoble on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Brussels to Grenoble
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does it take to get from Brussels to Grenoble?
The fastest journey from Brussels to Grenoble takes 4h 25m door to door, of which 1h 16m is spent moving, on the Flight. Most services take around 4h 28m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Brussels to Grenoble?
The cheapest fare from Brussels to Grenoble is €63.27, checked on September 29, 2026. A typical fare across the next three weeks is €96.31. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Brussels to Grenoble?
The cheapest way from Brussels to Grenoble is by Flight, at €73.30 for one passenger on September 29, 2026. That journey takes 4h 26m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
When should I book Brussels to Grenoble?
Fares from Brussels to Grenoble bottom out around 60 days before departure, at €53.83. Across the whole booking window the gap between the cheapest and the most expensive lead time is 269 percent, measured on September 29, 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Brussels to Grenoble?
Monday is the cheapest day to depart from Brussels to Grenoble, at €80.97. That is the median of 21 priced departure days across the next three weeks, checked on September 29, 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Brussels to Grenoble?
January is the cheapest of the next 6 months to travel from Brussels to Grenoble, at €55.01 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs service from Brussels to Grenoble?
1 operators sell services from Brussels to Grenoble across 1 modes: Brussels Airlines. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Brussels to Grenoble?
20 percent of the services we sell from Brussels to Grenoble are direct. The rest connect at Turin, Strasbourg, Lyon, Marne La Vallée, with about 53 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
Which station or terminal do services from Brussels to Grenoble use?
Services from Brussels to Grenoble by Flight leave from Brussels BRU and arrive at Grenoble GNB. Allow about 3h 10m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Brussels to Grenoble?
0 of the 1 operators we sell from Brussels to Grenoble allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon, Distances
- On this page
- Every figure above was computed for Brussels to Grenoble on September 9, 2026: 658 km of route against 639 km in a straight line, 5 services a day, 1 operators, a cheapest fare of €63.27, and 4h 25m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Our job ends at the platform. What fills the days in Grenoble afterward does not belong to us.
Anything to book in Grenoble before you go?
The tickets worth having in advance, because the line at the door is usually the whole morning.
See Grenoble on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
Other ways to make this journey
Arriving in Grenoble
Leaving Grenoble
- 46Places you can leave for
- 11Countries
- 23Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.