Cheapest€62.68
- ASL Airlines Belgium AS881906:471h 18m08:05Liège LGGRennes RNS
Door to door 4h 28mCO2 150.6 kgChanges 0Fixed, no changes
Liège to Rennes flight
Flights from Liège to Rennes start at €69.76 and take 4h 25m at their fastest.
The Flights from Liège to Rennes starts at €69.76 and takes 4h 25m door to door, run by 1 operator over 612 km, with around 5 departures a day. Fares bottom out about 45 days before departure.
- 4h 25mDoor to door
- 1h 15mMoving
- €69.76From
- 150.6 kgCO2
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€68.58
- ASL Airlines Belgium AS330314:051h 15m15:20Liège LGGRennes RNS
Door to door 4h 25mCO2 150.6 kgChanges 0Fixed, no changes
Lowest CO2€84.51
- ASL Airlines Belgium AS112907:3051m08:21Liège LGGParis BVA
- SNCF SN831409:452h 19m12:04Paris Gare de LyonRennes
Changes at Paris, with 84 minutes between services and a walk of about 14 minutes.
Door to door 6h 31mCO2 87.4 kgChanges 1Fixed, no changes
Airlines
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 |
|---|---|---|---|---|---|
 ASL Airlines Belgium | €62.68 | 4h 21m | 740 km/h | Fixed fare | Not published |
The flight gets you into Rennes. It does not get you a bed, and neither do we.
Where to stay in Rennes
Filter by neighborhood and by nightly price, and the map tells you what is a walk and what is a cab.
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When to book Liège to Rennes
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €92.1890 days
- €50.2960 days
- €49.1145 days
- €67.9930 days
- €66.8121 days
- €76.8414 days
- €80.387 days
- €112.243 days
- €123.451 days
- Cheapest lead time
- Fares bottom out around 45 days ahead, at €49.11.
- How much it moves
- The gap between the cheapest and most expensive lead time is 151 percent. The most expensive point is €123.45, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 45 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €82.15Sun
- €69.76Mon
- €79.20Tue
- €83.92Wed
- €97.49Thu
- €76.84Fri
- €86.87Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Liège
Air
- LGG
Rennes
Air
- RNS
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
- 33% of the services we sell on this corridor run through without a change. The remaining 67% involve one connection.
- How far it really runs
- The route covers 612 km against 594 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 Amsterdam, Frankfurt am Main, Paris, London. The gap between arriving and leaving is 47 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 20 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 Liège at 06:47 and the last at 14:05, across 5 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Liège to Rennes
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 the Flight from Liège to Rennes take?
The Flight from Liège to Rennes takes 4h 25m door to door, of which 1h 15m is spent moving. The route runs 612 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Liège to Rennes cost?
The Flight from Liège to Rennes starts at €69.76 for one passenger, checked on September 29, 2026. A typical fare is €84.51. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Liège to Rennes?
1 operators run the Flight from Liège to Rennes: ASL Airlines Belgium. Between them they file around 5 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Liège to Rennes use?
The Flight from Liège to Rennes leaves from Liège LGG and arrives at Rennes RNS. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Liège to Rennes?
Fares for the Flight from Liège to Rennes bottom out around 45 days ahead, at €49.11. The gap between the cheapest and most expensive lead time across the window is 151 percent, measured on September 29, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Liège to Rennes produce?
The Flight from Liège to Rennes produces about 150.6 kg of CO2 per passenger over 612 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
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
- On this page
- Every figure above was computed for Liège to Rennes on September 11, 2026: 612 km of route against 594 km in a straight line, 5 services a day, 1 operators, a cheapest fare of €69.76, and 4h 25m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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Landing at RNS after the trains have stopped is the case this solves. We do not run cars.
Getting from RNS into Rennes
A price agreed before you fly, a driver at arrivals, and a car big enough for the bags.
Book a ride from RNS 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.