$149 Cheap Flights from Istanbul (IST) to Cologne (CGN)

View $149 flight on Tue, Sep 16, 2025Opens in a new window

Popular airlines from Istanbul Airport (IST) to Cologne - Bonn Airport (CGN)

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Cheap Flights from Istanbul to Cologne (IST-CGN)

Prices were available within the past 7 days and start at $149 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Fri, Sep 12 - Mon, Sep 15
IST
Istanbul
CGN
Cologne
$208 Roundtrip, found 4 days ago
$208
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Fri, Sep 12 from Istanbul to Cologne, returning Mon, Sep 15, priced at $208 found 4 days ago
Lufthansa
Thu, Nov 27 - Sun, Nov 30
IST
Istanbul
CGN
Cologne
$240 Roundtrip, found 2 hours ago
$240
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Thu, Nov 27 from Istanbul to Cologne, returning Sun, Nov 30, priced at $240 found 2 hours ago
Air Serbia
Tue, Sep 16 - Sat, Sep 20
IST
Istanbul
CGN
Cologne
$280 Roundtrip, found 3 days ago
$280
Roundtrip
found 3 days ago
Select Air Serbia flight, departing Tue, Sep 16 from Istanbul to Cologne, returning Sat, Sep 20, priced at $280 found 3 days ago
Aegean
Sat, Dec 6 - Sat, Dec 13
IST
Istanbul
CGN
Cologne
$900 Roundtrip, found 5 days ago
$900
Roundtrip
found 5 days ago
Select Aegean flight, departing Sat, Dec 6 from Istanbul to Cologne, returning Sat, Dec 13, priced at $900 found 5 days ago

Find the cheapest month to fly from Istanbul (IST) to Cologne (CGN)

March is typically the cheapest month to fly

From $65 - $225 per traveler.

Graph displaying average flight prices per month

Alternative airports near Cologne

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cologne - Bonn CGN. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $264
CGN
Cologne - Bonn
CheapestClosest
Average driving time to city center14 min
Flights from $264
Flights from Istanbul (IST) to Cologne (CGN)
Origin airport
Istanbul
Destination airport
Cologne - Bonn
Airlines serving
Aegean, British Airways, Lufthansa, Turkish Airlines
Roundtrip price
$208
Distance
1224 mi
Average flight time
2 hours 20 mins

Istanbul to Cologne Flights

The cheapest times to fly from Istanbul to Cologne

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Istanbul to Cologne are during the month of September. You can find some of the cheapest flights from Istanbul to Cologne with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Istanbul to Cologne

Sunday is one of the best days to book for cheap flights from Istanbul to Cologne: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Istanbul to Cologne

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Istanbul to Cologne in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Istanbul to Cologne flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Istanbul to Cologne airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Istanbul (IST) to Cologne - Bonn Airport (CGN) cost?
Lock in a cheap one-way flight from $149 or cheap return flight from $208 from Istanbul (IST) to Cologne - Bonn Airport (CGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Istanbul (IST) to Cologne - Bonn Airport (CGN)?
The cheapest month to fly from IST to CGN is September, when there's less demand. Off-peak season is usually when airlines offer better prices between these airports.
Which airlines fly direct from Istanbul (IST) to Cologne - Bonn Airport (CGN)?
Although Istanbul (IST) doesn't have any direct flights to Cologne - Bonn Airport (CGN), other airports have nonstop routes. Departing from Ataturk Intl. Airport (IST) will get you to Cologne without any layovers.
What is the cheapest airline that flies from Istanbul (IST) to Cologne - Bonn Airport (CGN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest IST to CGN flight.
How many flights per day from Istanbul (IST) to Cologne - Bonn Airport (CGN)?
There are no daily direct flights departing from Istanbul (IST) to Cologne - Bonn Airport (CGN). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from IST to CGN?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Istanbul (IST) to Cologne - Bonn Airport (CGN)?
Choose a flight from Istanbul (IST) to Cologne - Bonn Airport (CGN) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Istanbul (IST) to Cologne - Bonn Airport (CGN) last-minute?
Booking your ticket from IST to CGN just before your trip is usually more expensive. However, if there's some wiggle room with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book an IST to CGN flight and hotel package?
Compared with arranging hotels and flights separately, booking an IST to CGN flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Istanbul (IST) to Cologne - Bonn Airport (CGN)?
If you reserved your IST to CGN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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*Available to One Key members.