KLU to CGN, Klagenfurt Airport to Cologne Bonn Airport Cheap Flights

Based on HopeGoo data, Austrian Airlines offers one-way fares as low as US$180 on Cheapest nonstop routes (e.g. KLU to CGN on Wed, Mar 18), while Austrian Airlines offers Cheapest nonstop round-trips from US$223 departing on Tue, Mar 3 and returning on Tue, Mar 10.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Klagenfurt to Cologne is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

To find best deals on flights from Klagenfurt to Cologne, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Mar 18, with one-way flights priced at just US$180. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Austrian Airlines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Cologne travel is around January. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Klagenfurt to Cologne is October, when demand for travel is lower.

After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Klagenfurt to Cologne on February 27, 2026 with Austrian Airlines, with prices starting at US$320.

The time difference between Cologne and Klagenfurt is 0h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your HopeGoo, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.