There are most likely no direct flights on the Sofia — Kos route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Sofia to Kos. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Sofia to Kos, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
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There are most likely no direct flights on the Sofia — Kos route
Sofia, the capital city of Bulgaria, offers two airports that cater to departing travelers. Firstly, Sofia Airport (SOF) is conveniently located just 10 kilometers east of the city center. With a short travel time, it provides a hassle-free start to your journey. Airlines such as Lufthansa and Turkish Airlines operate their hubs here, ensuring a wide range of connecting flights to various destinations, while offering renowned services and excellent connectivity. Additionally, Sofia Airport boasts modern facilities and amenities, making it a comfortable and efficient departure point. Alternatively, there is also the option of using Plovdiv Airport (PDV), situated around 150 kilometers away from Sofia. Although further from the city, Plovdiv Airport provides a more tranquil departure experience. Travelers seeking to avoid busy airport crowds may prefer this option. However, it is important to consider the longer travel time required to reach Plovdiv Airport, which may involve additional costs and logistical planning. Both airports offer their own unique benefits and downsides. While Sofia Airport ensures quick access to the city center and provides a wide range of flight options, Plovdiv Airport offers a more peaceful departure environment. Travelers should carefully weigh these factors, considering their priorities and travel plans, when choosing the most suitable airport for their departure from Sofia.
There appear to be no non-stop flights from Sofia to Kos at this time.... Well, or something went wrong on our side and we couldn't find anything
starting at $115
On the Sofia — Kos route, flights are operated only by Aegean Airlines. This simplifies the choice for passengers, as all tickets come from a single trusted carrier. Our service lets you instantly check fares for upcoming dates and find the most advantageous option. The minimum ticket price starts at $115, making this trip affordable for a wide range of travelers. To save even more, we recommend booking early and keeping an eye on promotions — Aegean Airlines regularly offers special deals.
The cheapest one-way flight from Sofia to Kos departs on 09/14/2026, is operated by Aegean Airlines and costs $115
The cheapest roundtrip flight from Sofia to Kos departs on 07/23/2026, is operated by Aegean Airlines and costs $220
Fastest flight from Sofia to Kos takes 11h 30m
There are no direct flights on this route.
The distance between Sofia and Kos is 726km (450 miles). Sofia and Kos are in the same time zone
The cheapest flight ticket from Sofia to Kos according to data for the last 48 hours costs $115
Often the best time to buy tickets from Sofia to Kos is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Sofia to Kos can be found flying in these months: June, September.
The fastest flights from Sofia to Kos start from 11 hours 30 minutes in the air.
The following airlines operate direct flights on the route Sofia — Kos:
The cost of a one-way flight from Sofia to Kos ranges from $69 (June 2026) to $115 (September 2026). On average, the ticket price is about $92–$115.
We couldn't find any special offers for flights from Sofia to Kos