Cheap Flights from Athens International (ATH) to Sofia (SOF)

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Flight deals from Athens International to Sofia

Looking for a cheap last-minute deal or the best round-trip flight from Athens International to Sofia? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Athens International to Sofia

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

Direct flights from Athens International to Sofia

Athens International to Sofia: Alternative routes

Compare routes from Athens International to Sofia below. You may find an airport to fly into that's cheaper, faster, or easier than Sofia.

Athens to Sofia: Flight information

The things to know before you go.
Cheapest flight found$52
Cheapest month to flyDecember
Average flight time1 hr, 20 mins
Most popular airlineBulgaria Air
Average flights per week29

Finding cheap flights from Athens International to Sofia: Frequently asked questions

The best price we found for a round-trip flight from Athens International to Sofia is $93. 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.
1 hour and 20 minutes is the average flight time from Athens International to Sofia.
Bulgaria Air, Aegean Airlines and SKY express fly direct from Athens International to Sofia.
There are 29 flights per week flying from Athens International to Sofia, as of June 2025.
The cheapest month to fly from Athens International to Sofia is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Athens International Airport to Sofia Airport on Thursday, November 20, 2025.
Yes – the average flight time is 1 hour and 20 minutes.
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 Sofia 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 Sofia is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Aegean Airlines offers the cheapest flight tickets to Sofia.

Flying from Eleftherios Venizelos International Airport (ATH) to Sofia Airport (SOF): what you need to know

  • The average time for a direct flight from Eleftherios Venizelos International Airport to Sofia Airport is 1 hour 25 minutes.

  • Athens and Sofia are in the UTC+2 timezone. This means you won't need to account for any time differences.

  • Flights from ATH to SOF start from 06:00 — the earliest with Sky Express. The last departure is at 20:40 with Bulgaria Air. In total, you can take your pick of 42 weekly Eleftherios Venizelos International Airport to Sofia Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Get to the airport on time to board your ATH to SOF flight.

  • During popular months such as July, it's a good idea to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead for international flights when you travel during a high season in general.

  • With direct flights from Eleftherios Venizelos International Airport to Sofia Airport available through various airlines, getting to Sofia (and then other parts of Bulgaria) is easy. You can fly nonstop with:

  • The airline most travelers prefer to fly with on this route is Aegean Airlines.

  • With a dependable 90.0% of services arriving as planned, Aegean Airlines is the most punctual carrier operating ATH to SOF flights.

  • Think about adding a stopover when booking your ticket from Eleftherios Venizelos International Airport to Sofia Airport. Just deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between ATH and SOF:

    • Istanbul Ataturk Airport

    • Bucharest Henri Coanda International Airport

    • Rhodes Airport

How to find the cheapest flights from Eleftherios Venizelos International Airport (ATH) to Sofia Airport (SOF)

  • The cheapest price we've found for a one-way Eleftherios Venizelos International Airport to Sofia Airport flight is $52. A return ticket right now is $93. Depending on the availability and when you book, these fares may change.

  • Get cheap tickets from ATH to SOF by booking seven months ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • June is the cheapest month for flights from Eleftherios Venizelos International Airport to Sofia Airport. If you want to fly at a different time of year, the 'Whole month' tool will show you the lowest airfares across every month.

  • There's no need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll let you know the moment the price changes on cheap flights from ATH to SOF.

  • Discover the perfect flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Eleftherios Venizelos International Airport to Sofia Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about Eleftherios Venizelos International Airport (ATH)

  • Of the departures from Eleftherios Venizelos International Airport, 77.19% land on time at their destination.

  • Central Athens to Eleftherios Venizelos International Airport is around 25 miles. Depending on traffic, it'll take you about 35 minutes to get there if you're driving, ride-sharing or catching a cab.

  • The trip on public transport takes about 1 hour.

  • Get your break off to a stress-free start by staying near ATH. Whether you're catching an early flight from Eleftherios Venizelos International Airport to Sofia Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Sofia Airport (SOF)

  • The last thing you need is a long trip to your hotel if you're landing late on an Eleftherios Venizelos International Airport to Sofia Airport flight. Reserve one of these accommodation options near SOF instead:

  • Begin your adventure by picking up a Sofia Airport rental car. Grab a set of wheels from MEX, Surprice or NU Car Rentals and explore beyond Sofia's usual tourist stops.

  • Lock in the best possible rate by reserving your ride from Sofia Airport about one week in advance of your trip.

Getting from Sofia Airport (SOF) to central Sofia

  • From Sofia Airport, Sofia is approximately 7 miles away. It takes around 15 minutes to reach the center by car.

  • Getting to the center by public transport typically takes 35 minutes.

When to fly to Sofia Airport (SOF)

  • It's time to choose your travel dates for your flight from Eleftherios Venizelos International Airport to Sofia Airport. August is the busiest month to visit Sofia. If you want a more relaxed vibe, go in April.

  • Before locking in your flight from Eleftherios Venizelos International Airport to Sofia Airport, consider the kind of weather you enjoy. August is the warmest month in Sofia, with temperatures ranging from 57ºF to 86ºF.

  • Search for cheap tickets from ATH to SOF in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 12ºF and 45ºF on average.

Explore more of Bulgaria

  • You've seen Sofia, now it's time to explore other parts of Bulgaria. Journey about 80 miles south-east to Plovdiv to tick off its top sights. From Plovdiv Old Town to Plovdiv Roman Theatre and Archaelogical Complex Nebet Tepe, there's plenty to keep you busy.

  • Around 240 miles east of Sofia, Varna is another essential stop in Bulgaria. Start your sightseeing at Park Asparuhovo - Asparuhovo sea garden, Dormition of theotokos Cathedral and Sunset viewpoint (място за гледане на Залеза).

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