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Cheap flights from Cologne (CGN) to Istanbul (IST)

CGN — IST
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Cologne Köln/Bonn to Istanbul are usually found in January or March, booked 38 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from Cologne to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Cologne (CGN) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Popular in

July

Cheapest in

January

Average price

$325

Good round-trip deal

$468 or less

Good one-way deal

$109 or less
Highest demand for flights based on searches. 25% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Cologne Köln/Bonn to Istanbul.
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Price to beat on a one-way flight from Cologne Köln/Bonn to Istanbul.
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Best time to book a flight from Cologne to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Cologne with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cologne to Istanbul Airport

How far ahead should I book a flight from Cologne to Istanbul Airport?

Use this chart to determine the optimal time to book a round-trip flight from Cologne to Istanbul. Price data was last updated on August 8, 2025.

The best time to book flights from Cologne to Istanbul Airport is 38 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Cologne to Istanbul Airport?

Currently, November is the cheapest month in which you can book a flight from Cologne to Istanbul Airport (average of $923). Flying from Cologne to Istanbul Airport in June is currently the most expensive (average of $1,359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CGN to IST?

Find hourly flight availability from Cologne to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 13% on flights from Cologne to Istanbul Airport by exploring options for tickets in the evening.

What is the cheapest day to fly from Cologne to Istanbul Airport?

Use this chart to determine the cheapest time to fly round-trip from Cologne to Istanbul. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Cologne to Istanbul Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Cologne to Istanbul Airport

Explore weekly flight availability from Cologne to Istanbul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2025.

The most flights from CGN to IST are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Cologne to Istanbul Airport, such as Turkish Airlines and Pegasus Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
3,940 reviews

Boarding

7.3

Comfort

7.3

Entertainment

7.4

Food

7.4

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Turkish Airlines
7.3
Good
3,940 reviews
Turkish Airlines
7.3
Good
3,940 reviews

Boarding

7.3

Comfort

7.3

Entertainment

7.4

Food

7.4

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Pegasus Airlines
6.7
Okay
636 reviews
Turkish Airlines
7.3
Good
3,940 reviews

Boarding

7.3

Comfort

7.3

Entertainment

7.4

Food

7.4

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.

Related info for your journey

Find useful and relevant information for your journey from Cologne to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cologne to Istanbul?

    If you book a flight to Istanbul from Cologne, you will be flying from Köln/Bonn, which is the city’s only airport. Cologne Köln/Bonn (CGN) is located 9.5 mi from the center of Cologne. There are 2 flights from Köln/Bonn to Istanbul per day from 3 different airlines.

  • What are the cheapest airlines flying from Cologne to Istanbul Airport round-trip?

    According to our current data, Pegasus Airlines ($82), Ajet ($107), and Turkish Airlines ($149) offers the cheapest pricing from Cologne to Istanbul Airport. Pegasus Airlines is priced at 62% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Cologne to Istanbul that include hotel bookings?

    Yes. In addition to deals on Cologne to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cologne to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cologne to Istanbul.

  • Can I find deals for business class flights from Cologne to Istanbul?

    Yes. Cheapflights offers flight deals from Cologne to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cologne to Istanbul Airport?

    Currently, November is the cheapest month in which you can book a flight from Cologne to Istanbul Airport (average of $923). Flying from Cologne to Istanbul Airport in June is currently the most expensive (average of $1,359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Cologne to Istanbul

Discover the top 3 airlines that operate flights from Cologne to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest$82Average$174FlexibilityNo cancel feeOn-time82%
AjetCheapest$107Average$171FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$149Average$302FlexibilityNo cancel feeOn-time77%

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