Flights from Cologne/Bonn to IstanbulCologne/Bonn → Istanbul

• cheap: up to €55
• medium: up to €82
• expensive: over €82
• – no price found

Prices in euros; for each departure day, the lowest price recently found. The colour bands split the 64 daily prices found in these three months into thirds. Retrieved 17 Oct 2026, 01:46 CEST.

• 3 nights

  1. Thu, 3 Dec – Sun, 6 Decout €52 + back €57from €109
  2. Mon, 30 Nov – Thu, 3 Decout €54 + back €57from €111
  3. Fri, 4 Dec – Mon, 7 Decout €65 + back €51from €116

• 7 nights

  1. Mon, 30 Nov – Mon, 7 Decout €54 + back €51from €105
  2. Mon, 16 Nov – Mon, 23 Novout €58 + back €50from €108
  3. Tue, 17 Nov – Tue, 24 Novout €52 + back €57from €109

• 14 nights

  1. Mon, 9 Nov – Mon, 23 Novout €54 + back €50from €104
  2. Wed, 25 Nov – Wed, 9 Decout €54 + back €51from €105
  3. Thu, 12 Nov – Thu, 26 Novout €53 + back €55from €108

The sum of two one-way flights, each the lowest price recently found for one person — a guide price, not the price of a return ticket. Outbound flights from the calendar above, return flights from the opposite direction (retrieved between 16 Oct 2026, 22:22 CEST and 17 Oct 2026, 02:40 CEST). Tap to open the flight search with both days. How we work

• Month

  In November 2026, last found from €52; in April 2027, from €93 — a difference of €41 between the cheapest and the most expensive month. Compared: 8 months with at least 3 days with a price.

• Day of the week

  People flying on Thursdays found the lowest prices: typically €55 (median of 8 days), compared with €85 on Sundays (11 days). Based on 64 departure days with a price in the next three months.

• Direct flights

  On 51 of 64 days, the cheapest flight found was a direct flight; on the others, it had a change.

Calculated from the daily prices above; the thresholds are explained under “How we work”.