From €152 return per person · cheapest departure 13 Nov
In short: The cheapest return flight from Düsseldorf to Istanbul we found costs €152 per person (departure 13 Nov, Air Serbia, 1 stop, 6 h 15 min). Prices by departure week range from €152 to €276; the typical price is €167. Source: Google Flights, updated 25 October 2026.
When is it cheapest to fly?
Cheapest: departure 13 Nov · €152 return, per person Most expensive: 18 Dec · €276. Booking the cheapest week saves up to 45 %. 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
💰13 Nov – 20 Nov€152Air Serbia · 1 stop · 6 h 15 min · return, per person