C$84 Cheap Flights from Sofia (SOF) to Kos (KGS)

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Flight deals from Sofia to Kos

Looking for a cheap last-minute deal or the best return flight from Sofia Airport to Kos Airport? If you want to travel next month, return fares start from C$304. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sofia to Kos

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sofia to Kos flights are currently cheapest in June.

Sofia to Kos: Flight information

The things to know before you go.
Cheapest flight foundC$84
Cheapest month to flyJune

Finding cheap flights from Sofia to Kos: Frequently asked questions

The best price we found for a return flight from Sofia to Kos is C$202. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sofia to Kos. But we found flights with one or more stops from C$202.
As of April 2026, there are no flights flying from Sofia to Kos.
The cheapest month to fly from Sofia to Kos is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sofia Airport to Kos Airport on Wednesday, September 30, 2026.
No airlines currently offer direct flights between Sofia Airport and Kos Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kos but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kos is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Wizz Air offers the cheapest flight tickets to Kos.

Traveling from Sofia Airport (SOF) to Kos Airport (KGS): what you need to know

  • Delays at check-in and security are more likely if you're heading away during high season, so allow a bit more breathing room. A good rule of thumb for peak periods? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • We make it a breeze to book a flight with a stopover. To see all the options for flights from Sofia Airport to Kos Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to explore your chosen city. Popular stopovers between SOF and KGS include:

    • Eleftherios Venizelos International Airport

    • Milano Malpensa Airport

    • Vienna International Airport

How to find the cheapest flights from Sofia Airport (SOF) to Kos Airport (KGS)

  • The best price we've found for a one-way ticket from Sofia Airport to Kos Airport is C$84. The cheapest price for a return flight is C$202. Keep in mind that fares can change due to demand at the time of booking.

  • To get your hands on cheap flight tickets from SOF to KGS, book ahead. Airlines usually offer lower prices when flights are first made available.

  • The 'Whole month' search function shows you the cheapest flight tickets from Sofia Airport to Kos Airport across every month. It's an easy way to find a bargain if your travel dates are flexible.

  • Set up a Price Alert for cheap flight tickets from SOF to KGS. There's no need to search every day to see if fares have fallen. We'll let you know as soon as there's a change in price.

  • Take advantage of filters to find the perfect journey for you. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Sofia Airport to Kos Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and journey duration.

Handy information about Sofia Airport (SOF)

  • The journey from central Sofia to Sofia Airport takes around 37 minutes on public transport. If you drive, ride-share or hail a cab, you'll cover the 11 kilometres in 16 minutes or so, depending on traffic.

  • Want a convenient hotel close to SOF? If you've booked an early flight from Sofia Airport to Kos Airport, these stays will have you moments from your check-in counter:

Arriving at Kos Airport (KGS)

Getting from Kos Airport (KGS) to central Greece

  • Kos Airport to central Greece is around 434 kilometres. If you're taking a cab or renting a car, plan ahead to make your trip as easy as possible. Journey times can vary depending on traffic conditions and the time of day.

When to fly to Kos Airport (KGS)

  • August is the busiest month for flights from Sofia Airport to Kos Airport. To skip the crowds, go to Greece in February.

  • When booking your flight from Sofia Airport to Kos Airport, think about the kind of weather you like. July is the warmest month in Greece, with temperatures ranging from 22ºC to 33ºC.

  • If you want to travel in cooler conditions, look for a cheap ticket from SOF to KGS in January. Average temperatures are between 2ºC and 13ºC then.

More about Greece

  • Start your Greece trip right by finding an amazing place to stay. Once you've booked your flight from SOF to KGS, check out our range of accommodation options including:

  • There are so many things to see and do in this city it can be tricky to work out where to begin. Agios Panteleimonas, Κύμα - Kyma - The wave and Τρείς μώλοι / Three piers beach are major attractions which should feature on any good Greece itinerary.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.