Flights from Istanbul to Cologne/Bonn
Prices by month and day · IST → CGN
Flight prices by month and by day · IST → CGN · one way, 1 person
Hagia Sophia in Istanbul by day · Photo: Arild Vågen · CC BY-SA 3.0
From Istanbul (IST and SAW) to Cologne/Bonn (CGN): the lowest price found for each month and each departure day — so you can find the cheapest time to travel.
At a glance
Cheapest month
December 2026
last found from €48 · prices on 23 days
Cheapest day found
€48
Tue, 22 Dec · direct flight
Typical daily price
€83
Median of 66 days, Oct–Dec
Or tap a month or day below — the flight search opens on that day and shows the current offers. Prices recently found in Aviasales searches (Travelpayouts Data API): one way, one person, not offers. Retrieved between 17 Oct 2026, 02:40 CEST and 17 Oct 2026, 04:48 CEST. How we work
Prices by month
The lowest price found for each month, October 2026 to September 2027.
2026
- October 2026: last found from €93, prices on 14 days – search flights on the cheapest day of the month
- November 2026: last found from €50, prices on 29 days – search flights on the cheapest day of the month
- December 2026: last found from €48, prices on 23 days – cheapest month – search flights on the cheapest day of the month
2027
- January 2027: last found from €116, prices on 5 days – search flights on the cheapest day of the month
- February 2027: last found from €50, prices on 2 days – too few days for the comparison – search flights on the cheapest day of the month
- March 2027: last found from €51, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- April 2027: last found from €94, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- May 2027: last found from €97, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- June 2027: no prices found
- July 2027: last found from €54, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- August 2027: last found from €165, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- September 2027: no prices found
- October 2026: last found from €93, prices on 14 days – search flights on the cheapest day of the month
- November 2026: last found from €50, prices on 29 days – search flights on the cheapest day of the month
- December 2026: last found from €48, prices on 23 days – cheapest month – search flights on the cheapest day of the month
- January 2027: last found from €116, prices on 5 days – search flights on the cheapest day of the month
- February 2027: last found from €50, prices on 2 days – too few days for the comparison – search flights on the cheapest day of the month
- March 2027: last found from €51, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- April 2027: last found from €94, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- May 2027: last found from €97, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- June 2027: no prices found
- July 2027: last found from €54, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- August 2027: last found from €165, prices on 1 day – too few days for the comparison – search flights on the cheapest day of the month
- September 2027: no prices found
For each month, the lowest daily price found — a shorter bar means cheaper. Paler: fewer than 3 days with a price, not counted for the cheapest month. Tap a month to open the flight search on its cheapest day.
Prices by day
The lowest price found for each departure day. Tap a day to open the flight search for exactly that day.
- cheap: up to €58
- medium: up to €96
- expensive: over €96
- no price found
| Mo | Tu | We | Th | Fr | Sa | Su |
|---|---|---|---|---|---|---|
| Thursday, 1 October 2026: past | Friday, 2 October 2026: past | Saturday, 3 October 2026: past | Sunday, 4 October 2026: past | |||
| Monday, 5 October 2026: past | Tuesday, 6 October 2026: past | Wednesday, 7 October 2026: past | Thursday, 8 October 2026: past | Friday, 9 October 2026: past | Saturday, 10 October 2026: past | Sunday, 11 October 2026: past |
| Monday, 12 October 2026: past | Tuesday, 13 October 2026: past | Wednesday, 14 October 2026: past | Thursday, 15 October 2026: past | Friday, 16 October 2026: past | Saturday, 17 October 2026: past | 18111 |
| 19108 | 2093 | 21101 | 22131 | 23142 | 24172 | 25191 |
| 26143 | 27172 | 28193 | 29200 | 30176 | 31195 |
| Mo | Tu | We | Th | Fr | Sa | Su |
|---|---|---|---|---|---|---|
| 1179 | ||||||
| 2131 | 396 | 4112 | 589 | 695 | 7102 | 891 |
| 993 | 1087 | 1183 | 1290 | 1375 | 14105 | 15103 |
| 1697 | 1786 | 1880 | 1975 | 2074 | 2174 | 2283 |
| 2350 | 2457 | 2557 | 2655 | 2759 | 2884 | Sunday, 29 November 2026: no price found |
| 3070 |
| Mo | Tu | We | Th | Fr | Sa | Su |
|---|---|---|---|---|---|---|
| 169 | 258 | 357 | Friday, 4 December 2026: no price found | Saturday, 5 December 2026: no price found | 657 | |
| 751 | Tuesday, 8 December 2026: no price found | 955 | 1055 | Friday, 11 December 2026: no price found | 1255 | 1355 |
| 1455 | 1555 | 1655 | Thursday, 17 December 2026: no price found | 1855 | 1950 | 2058 |
| Monday, 21 December 2026: no price found | 2248 | 2356 | Thursday, 24 December 2026: no price found | 2558 | 2650 | 2777 |
| 2860 | Tuesday, 29 December 2026: no price found | 30108 | 31108 |
Prices in euros; for each departure day, the lowest price recently found. The colour bands split the 66 daily prices found in these three months into thirds. Retrieved between 17 Oct 2026, 02:40 CEST and 17 Oct 2026, 04:48 CEST.
Return trips
The cheapest combinations for 3, 7 and 14 nights — from two one-way flights, recently found.
3 nights
7 nights
14 nights
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 17 Oct 2026, 04:32 CEST). Tap to open the flight search with both days. How we work
What the data shows
Month
In December 2026, last found from €48; in January 2027, from €116 — a difference of €68 between the cheapest and the most expensive month. Compared: 4 months with at least 3 days with a price.Day of the week
People flying on Fridays found the lowest prices: typically €75 (median of 8 days), compared with €89 on Thursdays (9 days). Based on 66 departure days with a price in the next three months.Direct flights
On 46 of 66 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”.