Cheap Flights to Bonn - Rhein-Sieg: Bonn - Rhein-Sieg Flight Deals

View €17 flight on Tue, 23 Jun 2026Opens in a new window

Flight 1

Popular airlines

  • Lufthansa

  • KLM

  • British Airways

  • Swiss International Air Lines

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  • Air Canada

  • Finnair

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Cheap round-trip flights to Bonn - Rhein-Sieg

Prices were available within the past 7 days and start at €17 for one-way flights and €34 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Eurowings
Fri, 15 May - Sun, 17 May
ZAG
Zagreb
CGN
Cologne
€130 Return, found 5 hours ago
€130
Return
found 5 hours ago
Select Eurowings flight, departing Fri, 15 May from Zagreb to Cologne, returning Sun, 17 May, priced at €130 found 5 hours ago
Lufthansa
Thu, 11 Jun - Wed, 17 Jun
ZAG
Zagreb
CGN
Cologne
€246 Return, found 12 hours ago
€246
Return
found 12 hours ago
Select Lufthansa flight, departing Thu, 11 Jun from Zagreb to Cologne, returning Wed, 17 Jun, priced at €246 found 12 hours ago
Austrian Airlines
Thu, 11 Jun - Wed, 17 Jun
ZAG
Zagreb
CGN
Cologne
€246 Return, found 12 hours ago
€246
Return
found 12 hours ago
Select Austrian Airlines flight, departing Thu, 11 Jun from Zagreb to Cologne, returning Wed, 17 Jun, priced at €246 found 12 hours ago
Turkish Airlines
Sun, 4 Oct - Mon, 5 Oct
ZAG
Zagreb
CGN
Cologne
€349 Return, found 1 day ago
€349
Return
found 1 day ago
Select Turkish Airlines flight, departing Sun, 4 Oct from Zagreb to Cologne, returning Mon, 5 Oct, priced at €349 found 1 day ago
Swiss International Air Lines
Fri, 15 May - Mon, 18 May
ZAG
Zagreb
CGN
Cologne
€397 Return, found 15 hours ago
€397
Return
found 15 hours ago
Select Swiss International Air Lines flight, departing Fri, 15 May from Zagreb to Cologne, returning Mon, 18 May, priced at €397 found 15 hours ago

Frequently asked questions

How do I find cheap flights to Bonn - Rhein-Sieg that have flexible change policies?
At Expedia, we've been channeling our inner gymnast to offer you the most flexible airfares in town. Simply click on "No change fee" directly under the "Flexible change policies" heading to find your dream flight to Bonn - Rhein-Sieg.
Which airlines fly to Bonn - Rhein-Sieg?
Delta Air Lines is a leading air carrier servicing Bonn - Rhein-Sieg. Look up airfares to Duesseldorf Intl. Airport (DUS) and you'll have 13 Delta Air Lines flights each month to pick from.
How can I find cheap tickets to Bonn - Rhein-Sieg?
In the last seven days, €34 was the lowest price for a flight to Bonn - Rhein-Sieg. If you want to save even more, book ahead of time and be flexible with your travel dates. Search for your trip to Bonn - Rhein-Sieg, then compare prices for nearby days by clicking on our "flexible dates" link.
How much is a flight to Bonn - Rhein-Sieg?
In the last seven days, round-trip airfares to Bonn - Rhein-Sieg sold for as little as €34 and reached a maximum cost of €397. For one-way trips departing from Zagreb (ZAG), the lowest amount paid during this same period was €17.
What are the most popular airports to fly into in Bonn - Rhein-Sieg?
Bonn - Rhein-Sieg's main airport is Duesseldorf Intl. Airport (DUS). Get your next exciting adventure underway by securing a ticket on one of the 13 flights a month to this destination.
How much is a plane ticket to Bonn - Rhein-Sieg?
In the last seven days, flights to Bonn - Rhein-Sieg varied from €34 to €397.
What months are the cheapest to book a flight to Bonn - Rhein-Sieg?
To score a great deal to Bonn - Rhein-Sieg, try to book during the month of February when the prices are at their cheapest. When's the most expensive time? In the United States, it's the month of December.

Travel information

Destination airport
Cologne - Bonn
Destination airport IATA code
CGN
Destination city name
Cologne
Return price
€34

Trending flights to Bonn - Rhein-Sieg

Prices were available within the past 7 days and start at €17 for one-way flights and €34 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Tue, 23 Jun - Sat, 27 Jun
NOC
Knock
CGN
Cologne
€34 Return, found 1 day ago
€34
Return
found 1 day ago
Select Ryanair flight, departing Tue, 23 Jun from Knock to Cologne, returning Sat, 27 Jun, priced at €34 found 1 day ago

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