$394 Cheap Flights from Cologne (CGN) to Ostrava (OSR)

View $394 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Ostrava (OSR-Leos Janacek)

Cheap Flights from Cologne to Ostrava (CGN-OSR)

Prices were available within the past 7 days and start at $394 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR) cost?
Secure a cheap one-way flight from $394 or cheap return flight from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR)?
is the cheapest month to fly from CGN to OSR. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from CGN to OSR. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR)?
There aren't any daily nonstop flights from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from CGN to OSR?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR)?
To arrive at Leos Janacek Airport (OSR) without delays, select a flight that leaves from Cologne - Bonn Airport (CGN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR) last-minute?
Booking your plane ticket from CGN to OSR right before your trip is generally more expensive. But if you're flexible with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a CGN to OSR flight and hotel package?
Booking a CGN to OSR flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Leos Janacek Airport (OSR)?
If you booked your CGN to OSR flight within the last 24 hours, you may be able to cancel or modify it without 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, go to our Customer Service portal for more information.

Travel information

Travel information

Origin airport
Cologne - Bonn
Destination airport
Leos Janacek
Distance
492 mi

Book with confidence

Book with confidence

Cologne to Ostrava Flights

The cheapest times to fly from Cologne to Ostrava

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 Cologne to Ostrava are during the month of . You can find some of the cheapest flights from Cologne to Ostrava with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cologne to Ostrava

Sunday is one of the best days to book for cheap flights from Cologne to Ostrava: 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 Cologne to Ostrava

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 Cologne to Ostrava in 2025. You can also book with separate airlines for your outbound and return journeys, from $394 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 Cologne to Ostrava 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 Cologne to Ostrava 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.

 

Cologne to Ostrava Flights

Explore a world of travel with Expedia

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*Available to One Key members.