CGN - SOF

Find cheap flights from Cologne to Sofia

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sofia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cologne to Sofia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cologne to Sofia, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
Multiple Airlines
Thu 10/30
CGN - SOF • multi-stop
Cheapest one-way
Multiple Airlines
Thu 10/30
CGN - SOF • multi-stop
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 60% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
6 days a week
There are direct flights from Cologne to Sofia 6 days a week: Mon, Tue, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sofia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Cologne to Sofia (CGN-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cologne to Sofia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cologne to Sofia

Multiple Airlines Logo
CGN-SOF
951 mimulti-stop
Multiple Airlines Logo
SOF-CGN
951 mimulti-stop
Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Cologne to Sofia flights

Get data-powered insights and trends into flights from Cologne to Sofia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Cologne to Sofia?

The average price of all round-trip flights from Cologne to Sofia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sofia on a Monday and more expensive on a Friday. On your return trip to Cologne, you should consider flying back on a Friday, and avoid Thursdays for better deals.

What is the cheapest month to fly from Cologne to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cologne to Sofia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cologne to Sofia is January, where tickets cost $79 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $353 and $319 respectively.

How far in advance should I book a flight from Cologne to Sofia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cologne to Sofia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Cologne to Sofia, you should book around 2 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Find deals

Good to know

Low seasonJune
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 58% lower on average.

When to book flights from Cologne to Sofia

Are your dates flexible? Find out the best times to travel from Cologne to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cologne to Sofia

  • Do I need a passport to fly between Cologne and Sofia?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Cologne and on arrival in Sofia.

  • Which aircraft models fly most regularly from Cologne to Sofia?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Cologne to Sofia flight route.

  • On which days can I fly direct from Cologne to Sofia?

    You can catch a nonstop flight from Cologne to Sofia on on Monday, Thursday, Friday, Saturday, and Sunday.

  • How does KAYAK find such low prices on flights from Cologne to Sofia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cologne to Sofia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cologne to Sofia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Cologne is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cologne to Sofia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sofia with an airline and back to Cologne with another airline. Booking your flights between Cologne and SOF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cologne to Sofia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia from Cologne up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Cologne to Sofia?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Cologne Köln/Bonn to Sofia.
Find which airlines fly direct from Cologne Köln/Bonn Airport to Sofia Airport, which days they fly and book direct flights.

Direct departures

Cologne Köln/Bonn to Sofia

Monday

Ryanair

Ryanair

Tuesday

Ryanair

Ryanair

Thursday

Ryanair

Ryanair

Friday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Direct returns

Sofia to Cologne Köln/Bonn

Monday

Ryanair

Ryanair

Tuesday

Ryanair

Ryanair

Thursday

Ryanair

Ryanair

Friday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Reviews of the top airline flying from Cologne to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Cologne to Sofia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cologne to Sofia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
RyanairOverall score based on 5188 reviews
6.5Comfort
6.7Boarding
6.0Food
5.6Entertainment
7.5Crew
Airline reviews

I had heard horror stories about Ryan air and was a little worried about my flights with them but I had 3 flights with them in Italy, Puglia and Sicily and it was a painless and smooth process. I was very happy.

8.0 ExcellentJill, Oct 2025BGY - BRI
Read more Ryanair reviews

I had heard horror stories about Ryan air and was a little worried about my flights with them but I had 3 flights with them in Italy, Puglia and Sicily and it was a painless and smooth process. I was very happy.

What we can expect? Soon we will have to travel standing on the hallway. Let me be fair, I had worse experiences with Ryanair.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

I didn't know that all connecting flights require online check-in two hours in advance, so I was fined 55 euros. This is a lesson learned.

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

After passing through boarding gates we had to wait for 45 minutes in a small space with no place to sit.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Flight got delayed and they didn’t keep us informed all the time.

The worst flight ever. Sitting in plane for 4 hours delay and then they change crew. No water or food offered to any passengers including children in that time. Only 2 toilets out of 3 operating for flight with 200 passengers. Only enough food available for about 7 rows of seats depending where you sat you might be lucky. Cabin crew very unfriendly.

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

Everything you need to know for your flight from Cologne to Sofia

Information on your arrival and departure airports

Cologne (CGN)
Sofia (SOF)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.