$66 Cheap Flights from Cologne (CGN) to Sofia (SOF)

View $66 flight on Fri, Oct 10, 2025Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)

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Cheap Flights from Cologne to Sofia (CGN-SOF)

Prices were available within the past 7 days and start at $66 for one-way flights and $153 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Fri, Sep 19 - Mon, Sep 29
CGN
Cologne
SOF
Sofia
$153 Roundtrip, found 3 days ago
$153
Roundtrip
found 3 days ago
Select Ryanair flight, departing Fri, Sep 19 from Cologne to Sofia, returning Mon, Sep 29, priced at $153 found 3 days ago
Ryanair
Fri, Jul 11 - Mon, Jul 14
CGN
Cologne
SOF
Sofia
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Ryanair flight, departing Fri, Jul 11 from Cologne to Sofia, returning Mon, Jul 14, priced at $208 found 1 day ago
Ryanair
Fri, Aug 1 - Mon, Aug 4
CGN
Cologne
SOF
Sofia
$236 Roundtrip, found 1 day ago
$236
Roundtrip
found 1 day ago
Select Ryanair flight, departing Fri, Aug 1 from Cologne to Sofia, returning Mon, Aug 4, priced at $236 found 1 day ago
Lufthansa
Fri, Sep 19 - Mon, Sep 29
CGN
Cologne
SOF
Sofia
$252 Roundtrip, found 3 days ago
$252
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Sofia, returning Mon, Sep 29, priced at $252 found 3 days ago
Lufthansa
Fri, Sep 19 - Mon, Sep 29
CGN
Cologne
SOF
Sofia
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Sofia, returning Mon, Sep 29, priced at $254 found 3 days ago
Lufthansa
Fri, Sep 19 - Mon, Sep 29
CGN
Cologne
SOF
Sofia
$262 Roundtrip, found 3 days ago
$262
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Sofia, returning Mon, Sep 29, priced at $262 found 3 days ago
Lufthansa
Fri, Sep 19 - Mon, Sep 29
CGN
Cologne
SOF
Sofia
$263 Roundtrip, found 3 days ago
$263
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Cologne to Sofia, returning Mon, Sep 29, priced at $263 found 3 days ago
Austrian Airlines
Fri, Sep 19 - Mon, Sep 29
CGN
Cologne
SOF
Sofia
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Fri, Sep 19 from Cologne to Sofia, returning Mon, Sep 29, priced at $277 found 3 days ago
Pegasus Airlines
Fri, Aug 22 - Sat, Sep 6
CGN
Cologne
SOF
Sofia
$373 Roundtrip, found 9 hours ago
$373
Roundtrip
found 9 hours ago
Select Pegasus Airlines flight, departing Fri, Aug 22 from Cologne to Sofia, returning Sat, Sep 6, priced at $373 found 9 hours ago
Turkish Airlines
Fri, Jul 18 - Fri, Jul 25
CGN
Cologne
SOF
Sofia
$737 Roundtrip, found 1 day ago
$737
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Fri, Jul 18 from Cologne to Sofia, returning Fri, Jul 25, priced at $737 found 1 day ago

Alternative airports near Sofia

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

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $417
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $417
Flights from Cologne (CGN) to Sofia (SOF)
Origin airport
Cologne - Bonn
Destination airport
Sofia
Airlines serving
Austrian Airlines, British Airways, Lufthansa, Pegasus Airlines, Ryanair, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$152
Distance
952 mi
Average flight time
2 hours 25 mins

Cologne to Sofia Flights

The cheapest times to fly from Cologne to Sofia

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

 

The best time to book a flight from Cologne to Sofia

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

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 Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $66 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 Sofia 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 Sofia 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 Cologne - Bonn Airport (CGN) to Sofia Airport (SOF) cost?
You can book cheap return fares starting from $218 from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Ryanair flight leaving CGN on July 11 2025 and touching down at SOF. The price was last updated on June 30 2025 and has not changed since.
What is the cheapest month to fly from CGN to SOF?
The cheapest flights from CGN to SOF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CGN to SOF?
At the moment, the cheapest carrier offering one-way flights from CGN to SOF is Ryanair. You can book a seat on this route from $86. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CGN on August 11 2025. Prices were last updated on June 30 2025 and have not changed since.
How many flights per day from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)?
On average, Cologne - Bonn Airport (CGN) has 5 nonstop flights to Sofia Airport (SOF) each week. For more choice, take advantage of Expedia's filter tool to look for flights with one or two stops. Squeeze in a quick visit to another destination or simply break up your trip.
What are the most popular departure times for flights from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)?
The 7 PM departures from CGN to SOF see the highest demand. They can also be more expensive. If you're looking to save, book during off-peak hours.
What day of the week has the most flights from CGN to SOF?
If you fly on a Friday, you'll get the greatest range of choices for flights from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF).
What is the earliest flight from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)?
Cologne - Bonn Airport (CGN)'s first flight to Sofia Airport (SOF) takes off at approximately 11:30AM UTC+1. With a travel time of 2h 25m, you'll arrive at around 2:55PM UTC+2.
How long does it take to fly from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)?
The average flight duration from CGN to SOF is 2 hours and 25 minutes, covering a distance of 950 mi.
What is the best time to fly from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)?
To arrive at Sofia Airport (SOF) on schedule, choose a flight that leaves from Cologne - Bonn Airport (CGN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
What airports do you fly into for Sofia from Cologne - Bonn Airport (CGN)?
Compare your flight options from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF). This is the only airport in Sofia you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF) last-minute?
Holding off until right before your break to book a flight from CGN to SOF often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a CGN to SOF flight and hotel package?
You'll typically save money by booking a CGN to SOF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After choosing your ideal accommodations and flights, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Sofia Airport (SOF)?
In most instances, you can reschedule or cancel your CGN to SOF flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want more details, go to our Customer Service portal.

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*Available to One Key members.