The short answer
The train averages a little under five hours, station to station in the middle of both cities. The flight is about 55 minutes in the air.
That looks decisive until you add the airports. Getting out to Athens airport, checking in, security, the wait, the flight, then getting from Thessaloniki’s airport into town - by the time you have done all of it, the door-to-door gap is much smaller than four hours, and on a bad day it is nothing at all.
This is the one mainland journey in Greece where the train is the sensible default, not the romantic one.
Take the train if you are going city centre to city centre, which is nearly everyone. Fly if you are connecting to another flight, or your day depends on arriving early.
Athens to Thessaloniki at a glance
The case for the train
| What you’re deciding | By train | By plane |
|---|---|---|
| Journey time | ~4h53 average | ~55 min in the air |
| Where it starts | Athens, in the city | Athens airport (ATH) |
| Where it ends | Thessaloniki, in the city | SKG, then a transfer in |
| Door to door | About the same as flying, often better | Add both airports |
| Luggage | Bring what you like | Airline rules |
Greece is not a rail country in the way that Italy or Spain is. Its network is small, it has had a hard few years, and for most journeys here we tell people to take a bus or fly.
Athens to Thessaloniki is the exception. It is the country’s main line, it connects its two biggest cities, and it does what trains do best: centre to centre, no transfer at either end, with your luggage beside you and a window.
Add to that the honest arithmetic of flying. A 55-minute flight is not a 55-minute journey. It is a trip out to ATH, an hour or more of airport, the flight itself, then the ride in from SKG. Several sources make the same point we would: the total often exceeds the train.
The train also crosses the actual country - Thermopylae, the plain of Thessaly, Mount Olympus on your left as you come north - which the aircraft does at 30,000 feet.
When to fly anyway
Flying earns it in specific cases rather than as a default:
- You are connecting. If you are flying into Athens from abroad and straight on north, staying in the air system is simpler than a transfer into the city and out to a station.
- You need the morning. An early flight buys you a working day at the other end in a way a five-hour train does not.
- The fare is unusually low. Domestic fares fluctuate, and sometimes the flight is simply cheaper as well as faster. Check both.
The bus, which we mention and do not recommend here
There is a KTEL coach, and it is slower than both. It exists as a budget floor rather than a good option on this particular route.
The standing KTEL warning applies wherever you use it: the network is a set of regional companies with no national timetable, so check the operator that runs your leg. Getting around Greece covers how that works.
What you are going to
Worth saying, because a lot of visitors treat Thessaloniki as a place they pass through.
It is Greece’s second city, and it is the country’s best eating city by a distance - the food culture came north with refugees from Asia Minor in the 1920s and never left. It has Roman and Byzantine monuments standing in the middle of ordinary streets, a long waterfront to walk, and a student population that keeps it up late.
It is also the gateway to Halkidiki, to the north, and to a different half of the country from the one most itineraries see.
Deciding whether it deserves the days at all? Athens vs Thessaloniki makes that argument properly. This page is only about getting between them.
Diagram by Greece Trips. Free to reuse with credit - CC BY 4.0.
Coming back: Thessaloniki to Athens
Thessaloniki to Athens is the same journey reversed, and the same three modes compete: the main-line train, the KTEL bus and the plane.
- The train is the pleasant one, city centre to city centre, and it is competitive with flying once airport time is counted. See trains in Greece.
- Book ahead around holidays. This is the busiest domestic corridor in the country and it sells out at Easter, in August and at Christmas.
- Breaking the journey at Meteora, Volos or Litochoro turns a transfer into two days that are worth having.
Frequently asked questions
How long is the train from Athens to Thessaloniki?
A little under five hours on average, city centre to city centre.
Is it better to fly or take the train to Thessaloniki?
For most people, the train. The flight is about 55 minutes in the air, but once you add the trip out to Athens airport, check-in, security and the transfer in from Thessaloniki’s airport, the door-to-door difference is much smaller than it looks - and the train starts and ends in the middle of each city.
How long is the flight from Athens to Thessaloniki?
About 55 minutes in the air.
Is the Athens to Thessaloniki train reliable?
The Greek network has had a difficult few years and timings have changed since 2023, so check the operator for your date rather than relying on any published summary, including this one.
Is there a bus from Athens to Thessaloniki?
Yes, a KTEL coach, and it is slower than both the train and the plane. It is a budget floor rather than a recommendation on this route.
Next
Read the Thessaloniki travel guide, weigh the two cities in Athens vs Thessaloniki, or see how the rest of the country connects in getting around Greece.