Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Thessaloniki, across the three airlines that offer this route. We've found that 05 / Oct / 2025 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.
Turkish Airlines is the most popular airline that flies from London Heathrow to Thessaloniki. But it's still worth looking at other options, as there are 47 flights to Thessaloniki every week. If you want to broaden your search, look at flights departing from other airports.
The distance between London Heathrow to Thessaloniki is 2168 km. Normally, it takes about 5 hrs 15 mins to fly, and you can definitely expect the journey to be at least 3 hrs 20 mins. You can see the various flight times in the results.
You can also search by month, which will reveal the cheapest time of the week to fly.
