From €160 return per person · cheapest departure 4 Dec
In short: The cheapest return flight from Berlin to Istanbul we found costs €160 per person (departure 4 Dec, Air Serbia, 1 stop, 5 h 55 min). Prices by departure week range from €160 to €257; the typical price is €160. Source: Google Flights, updated 24 October 2026.
When is it cheapest to fly?
Cheapest: departure 4 Dec · €160 return, per person Most expensive: 25 Dec · €257. Booking the cheapest week saves up to 38 %. Cheapest return fare per person for a departure each week (trips of 7–7 days), economy class. Prices from Google Flights, read weekly; they change daily.
Cheapest departure
💰4 Dec – 11 Dec€160Air Serbia · 1 stop · 5 h 55 min · return, per person