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Cheap Flights from Athens International to Sofia

Compare Athens International to Sofia flight deals

Find the cheapest month or even day of the year to fly to Sofia

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Flight deals from Athens International to Sofia

Looking for a cheap last-minute deal or the best return flight from Athens International Airport to Sofia Airport? If you want to travel next month, return fares start from ج.م.‏ 6,310. Find the lowest prices on one-way and return tickets right here.
Sofia.ج.م.‏ 2,137 per passenger.Departing Wed, 15 Jul.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Athens International on Wed, 15 Jul, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 2,137, select.
Sofia.ج.م.‏ 2,285 per passenger.Departing Mon, 21 Sep.One-way flight with Wizz Air.Outbound indirect flight with Wizz Air, departs from Athens International on Mon, 21 Sep, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 2,285, select.
Sofia.ج.م.‏ 2,981 per passenger.Departing Thu, 20 Aug.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Athens International on Thu, 20 Aug, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 2,981, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Wed, 2 Dec.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 2 Dec, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Thu, 11 Feb.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Thu, 11 Feb, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Thu, 8 Oct.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Thu, 8 Oct, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Thu, 17 Sep.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Thu, 17 Sep, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Wed, 24 Mar.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 24 Mar, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Fri, 15 Jan.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Fri, 15 Jan, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Thu, 5 Nov.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Thu, 5 Nov, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,006 per passenger.Departing Mon, 27 Jul.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Mon, 27 Jul, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,006, select.
Sofia.ج.م.‏ 3,150 per passenger.Departing Sun, 2 Aug.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Sun, 2 Aug, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,150, select.
Sofia.ج.م.‏ 3,681 per passenger.Departing Mon, 10 May.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Mon, 10 May, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,681, select.
Sofia.ج.م.‏ 3,681 per passenger.Departing Wed, 21 Apr.One-way flight with SKY express.Outbound direct flight with SKY express departs from Athens International on Wed, 21 Apr, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 3,681, select.
Sofia.ج.م.‏ 5,033 per passenger.Departing Tue, 1 Jun.One-way flight with Aegean Airlines.Outbound direct flight with Aegean Airlines departs from Athens International on Tue, 1 Jun, arriving in Sofia.Price includes taxes and charges.From ج.م.‏ 5,033, select.

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 July.
Jul
from ج.م.‏ 2,137
Aug
from ج.م.‏ 2,981
Sep
from ج.م.‏ 2,285
Oct
from ج.م.‏ 3,006
Nov
from ج.م.‏ 3,006
Dec
from ج.م.‏ 3,006
Jan
from ج.م.‏ 3,006
Feb
from ج.م.‏ 3,006
Mar
from ج.م.‏ 3,006
Apr
from ج.م.‏ 3,681
May
from ج.م.‏ 3,681
Jun
from ج.م.‏ 5,033

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.

Sofia

7km from central Sofia
ClosestCheapest
from ج.م.‏ 2,137
Search flights

Athens to Sofia: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 2,137
Cheapest month to flyJuly
Average flight time1 hr, 30 mins
Most popular airlineBulgaria Air
Average flights per week48

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

The best price we found for a return flight from Athens International to Sofia is ج.م.‏ 4,781. 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 30 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.
As of July 2026, there are 48 flights per week flying from Athens International to Sofia.
The cheapest month to fly from Athens International to Sofia is usually July.
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 Wednesday, 22 July 2026.
Yes – the average flight time is 1 hour and 30 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, Ryanair and Aegean Airlines offer the cheapest flight tickets to Sofia.

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

  • Around 1 hour 25 minutes is how long you can expect to be in the air on a direct flight from Athens International Airport to Sofia Airport.

  • Athens and Sofia are in the UTC+2 timezone. This means there's no time difference to consider.

  • Choose from 17 weekly Athens International Airport to Sofia Airport flights. The 07:15 departure with Sky Express is the earliest available. Bulgaria Air operates the last service of the day at 20:40.

  • Get to the airport on time so you don't miss your ATH to SOF flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Travelling during a peak time like August? Major public holidays and other popular periods can result in longer queues and delays at check-in and security. Play it safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • You'll find a variety of airlines offering direct flights from Athens International Airport to Sofia Airport. When you're ready to start your Sofia holiday, let one of these carriers fly you to this must-see part of Bulgaria:

  • Most passengers choose to fly with Aegean Airlines on this route.

  • SKY express tops the rankings as the most punctual carrier for ATH to SOF flights, with 88.57% of its services reaching their destination on schedule.

  • If you'd like to add a stop to your trip, simply deselect 'Direct flights only' when searching for your ticket from Athens International Airport to Sofia Airport. These are the top stopovers between ATH and SOF:

    • Istanbul Airport

    • Bucharest Otopeni Airport

    • Crete Heraklion Airport

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

  • ج.م.‏ 2,137 is currently the best price for a one-way Athens International Airport to Sofia Airport flight. Return flights start from ج.م.‏ 4,781. These prices may change depending on availability.

  • Book one month before travelling. After looking at the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from ATH to SOF.

  • Organise your trip for June. That's the cheapest month for flights from Athens International Airport to Sofia Airport. If your travel dates are flexible, use the 'Whole month' tool to see the cheapest price across every month.

  • Snapping up cheap flights from ATH to SOF is a cinch with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a lower fare pops up.

  • Lock in the perfect flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Athens International Airport to Sofia Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Athens International Airport (ATH)

  • 76% of flights that take off from Athens International Airport land at their destination on time.

  • Central Athens to Athens International Airport is approximately 32 kilometres. Depending on traffic, it'll take about 35 minutes to get there if you're catching a taxi, ride-sharing or driving.

  • Taking public transport? You can expect a journey time of around 40 minutes.

  • Get your journey off to a hassle-free start by staying near ATH. Whether you're boarding an early flight from Athens International Airport to Sofia Airport or just don't want to be rushed, these hotels are ideal:

Arriving at Sofia Airport (SOF)

When to fly to Sofia Airport (SOF)

  • August is the most popular month for flights from Athens International Airport to Sofia Airport. For a quieter experience, go to Sofia in March.

  • The warmest month in Sofia is August, with temperatures ranging between 13ºC and 32ºC. Lock in your flights from Athens International Airport to Sofia Airport in this month if you like this kind of weather.

  • If you like travelling in cooler conditions, search for a cheap ticket from ATH to SOF in January. Temperatures average between -11ºC and 7ºC then.

Explore more of Bulgaria

  • Plovdiv is just one of the many places in Bulgaria waiting to be discovered once you've taken in the sights of Sofia. Around 129 kilometres away to the south-east, its best attractions include Plovdiv Roman Theatre, Municipal Institute "Ancient Plovdiv" and Museum Centre for Contemporary History.

  • Around 386 kilometres east of Sofia, Varna is another essential stop in Bulgaria. Experience this destination's highlights firsthand at Sahara beach, Museum of Natural History and Sea Garden.

More travel options

Plan the rest of your trip from Athens to Sofia

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.