Fastest€166.52
- Austrian Airlines AA675206:542h 32m09:26Graz GRZKos KGS
Door to door 5h 42mCO2 378.3 kgChanges 0Fixed, no changes
Graz to Kos flight
Flights from Graz to Kos start at €154.72 and take 5h 42m at their fastest.
The Flights from Graz to Kos starts at €154.72 and takes 5h 42m door to door, run by 1 operator over 1,538 km, with around 2 departures a day. Fares bottom out about 60 days before departure.
- 5h 42mDoor to door
- 2h 32mMoving
- €154.72From
- 378.3 kgCO2
The cheapest and the fastest on September 28, 2026
Two journeys we can sell today, with the service number each operator files them under.
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 |
|---|---|---|---|---|---|
 Austrian Airlines | €135.84 | 5h 31m | 740 km/h | Fixed fare | Not published |
The flight gets you into Kos. It does not get you a bed, and neither do we.
A room in Kos for the night the flight gets in
Sort by distance from Akteon (Center) and you can see which places are ten minutes on foot and which are not.
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When to book Graz to Kos
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €130.1490 days
- €125.2260 days
- €147.0345 days
- €158.7430 days
- €135.8421 days
- €161.8814 days
- €221.997 days
- €357.843 days
- €279.801 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €125.22.
- How much it moves
- The gap between the cheapest and most expensive lead time is 186 percent. The most expensive point is €357.84, 3 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.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €196.53Sun
- €154.72Mon
- €161.88Tue
- €161.88Wed
- €236.14Thu
- €212.48Fri
- €207.53Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Graz
Air
- GRZ
Kos
Air
- KGS
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 1,538 km against 1,493 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 Irákleion, Linz, Bratislava, Vienna. The gap between arriving and leaving is 63 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 15 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 Graz at 06:54 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.
Questions about Graz to Kos
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 Graz to Kos take?
The Flight from Graz to Kos takes 5h 42m door to door, of which 2h 32m is spent moving. The route runs 1,538 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 Graz to Kos cost?
The Flight from Graz to Kos starts at €154.72 for one passenger, checked on September 28, 2026. A typical fare is €165.64. 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 Graz to Kos?
1 operators run the Flight from Graz to Kos: Austrian Airlines. Between them they file around 2 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 Graz to Kos use?
The Flight from Graz to Kos leaves from Graz GRZ and arrives at Kos KGS. 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 Graz to Kos?
Fares for the Flight from Graz to Kos bottom out around 60 days ahead, at €125.22. The gap between the cheapest and most expensive lead time across the window is 186 percent, measured on September 28, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Graz to Kos produce?
The Flight from Graz to Kos produces about 378.3 kg of CO2 per passenger over 1538 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 Graz to Kos on September 8, 2026: 1538 km of route against 1493 km in a straight line, 2 services a day, 1 operators, a cheapest fare of €154.72, and 5h 42m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Related journeys
The fare from KGS into Kos is the one price on this trip we cannot show you, because it is not ours.
A car waiting when you land in Kos
A price agreed before you fly, a driver at arrivals, and a car big enough for the bags.
Book a ride from KGS 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.