ATH - SOF

$58 Find Cheap Flights from Athens to Sofia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Athens to Sofia departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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 Athens 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 Athens to Sofia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Athens to Sofia (ATH-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Athens 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 Athens to Sofia

Fri, Nov 28 - Mon, Dec 1
Sky Express Logo
6:00 pm - 7:45 pmATH-SOF
1h 45mnonstop
Sky Express Logo
10:05 am - 11:40 amSOF-ATH
1h 35mnonstop
$99Sky Express
Find Deal
Fri, Dec 5 - Mon, Dec 8
Multiple Airlines Logo
12:40 pm - 1:30 amATH-SOF
12h 50m1 stop
Multiple Airlines Logo
10:05 am - 11:40 amSOF-ATH
1h 35mnonstop
$101Multiple Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
Sky Express Logo
6:00 pm - 7:45 pmATH-SOF
1h 45mnonstop
Sky Express Logo
10:05 am - 11:40 amSOF-ATH
1h 35mnonstop
$103Sky Express
Find Deal
Fri, Nov 14 - Sun, Nov 16
Multiple Airlines Logo
6:00 pm - 7:45 pmATH-SOF
1h 45mnonstop
Multiple Airlines Logo
8:20 pm - 9:35 pmSOF-ATH
1h 15mnonstop
$106Multiple Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
Multiple Airlines Logo
12:40 pm - 1:30 amATH-SOF
12h 50m1 stop
Multiple Airlines Logo
10:05 am - 11:40 amSOF-ATH
1h 35mnonstop
$108Multiple Airlines
Find Deal
Thu, Jan 8 - Sun, Jan 11
Aegean Airlines Logo
6:10 pm - 7:30 pmATH-SOF
1h 20mnonstop
Aegean Airlines Logo
8:20 pm - 9:35 pmSOF-ATH
1h 15mnonstop
$133Aegean Airlines
Find Deal
Fri, Nov 28 - Sun, Nov 30
Ryanair Logo
1:00 pm - 12:55 amATH-SOF
11h 55m1 stop
Ryanair Logo
12:40 pm - 6:20 pmSOF-ATH
5h 40m1 stop
$142Ryanair
Find Deal
Sun, Nov 16 - Thu, Nov 20
Aegean Airlines Logo
6:10 pm - 7:30 pmATH-SOF
1h 20mnonstop
Aegean Airlines Logo
8:20 pm - 9:35 pmSOF-ATH
1h 15mnonstop
$151Aegean Airlines
Find Deal
Thu, Nov 27 - Sun, Nov 30
Air Serbia Logo
4:30 am - 3:30 pmATH-SOF
11h 00m1 stop
Air Serbia Logo
4:00 pm - 3:15 amSOF-ATH
11h 15m1 stop
$163Air Serbia
Find Deal
Thu, Nov 27 - Mon, Dec 1
Air Serbia Logo
4:30 am - 3:00 amATH-SOF
22h 30m1 stop
Air Serbia Logo
4:00 pm - 3:40 pmSOF-ATH
23h 40m1 stop
$171Air Serbia
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Choose Aegean's ComfortFlex for free seat selection.
Sky Express offers priority boarding with BLISS fare.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Sky Express
Cheapest • from $99 (round-trip)
Aegean Airlines
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 33% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$99
Overall average: $129
Sky Express
Fri 11/28Mon 12/1
ATH - SOF • Non-stop
Cheapest one-way
$58
Typical prices: $62-$107
Sky Express
Wed 2/11
ATH - SOF • Non-stop
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!
Booking Insights

KAYAK's insights & trends for Athens to Sofia flights

Get data-powered insights and trends into flights from Athens 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 Athens to Sofia?

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

For Athens to Sofia, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Sofia back to Athens, the best deals are generally found on Thursday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Athens 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 Athens to Sofia is January, where tickets cost $104 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $182 and $181 respectively.

How far in advance should I book a flight from Athens 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 Athens 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 Athens to Sofia, you should book around 4 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from Athens to Sofia

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aegean Airlines

Opt for ComfortFlex for free seat selection and checked baggage, enhancing travel comfort.


Use Security Fast Track at Athens for quick airport navigation.

Sky Express

Enjoy priority boarding and lounge access with BLISS fare, ideal for efficient travel.


Check in 48 hours before departure for a smooth travel experience.

Read more about Sky Expressby Daniel Scheffler
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on Aegean Airlines

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Sky Express

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more

Good to know

Low seasonJune
Cheapest flight$58
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Athens to Sofia

When to book flights from Athens to Sofia

Are your dates flexible? Find out the best times to travel from Athens 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 Athens to Sofia

  • Which environmentally friendly airline can I fly with from Athens to Sofia?

    Turkish Airlines is an environmentally friendly airline to consider for your travel from Athens to Sofia. To reduce environmental effect, the airline has undertaken a number of eco-friendly projects and programs, such as investing in sustainable aviation fuel, lowering carbon emissions, and installing more fuel-efficient aircraft.

  • Which other cities can I connect to after deplaning from my Athens to Sofia flight at Sofia Airport (SOF)?

    Apart from Sofia, SOF airport can act as a key arrival airport for travelers connecting to adjacent cities such as Plovdiv, Varna, Burgas, and Veliko Tărnovo. These cities are easily accessible by automobile or cab.

  • Can I conveniently fly with my furry friend from Athens to Sofia?

    When booking flights from Athens to Sofia, pet owners should prioritize American Airlines or United Airlines. Pets weighing less than 20 lbs are allowed in the cabins under the carriers' pet-friendly rules. The standards of these airlines require that your pet be at least two months old. Larger pets are transported as cargo in a temperature and pressure-controlled cargo hold.

  • How do I get to Athens International Airport Eleftherios Venizelos (ATH) to catch up with my flight to Sofia?

    There are various ways to go from downtown Athens to Athens International Airport Eleftherios Venizelos (ATH) for your trip to Sofia. The X93, X95, X96, and X97 public bus lines connect Downtown Athens to Sofia. However, given the time limits and luggage convenience, utilizing a taxi or ride-share service would be faster and more reliable.

  • What is the cheapest flight from Athens to Sofia?

    In the last 3 days, the lowest price for a flight from Athens to Sofia was $58 for a one-way ticket and $99 for a round-trip.

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

    Yes

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

    The ATR 42 / ATR 72 is the aircraft model that flies most regularly on the Athens to Sofia flight route.

  • Which airline alliances offer flights from Athens to Sofia?

    Star Alliance is the only airline alliance operating flights between Athens and Sofia.

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

    There are nonstop flights from Athens to Sofia on a daily basis.

  • Which is the best airline for flights from Athens to Sofia, Aegean Airlines or Sky Express?

    The two airlines most popular with KAYAK users for flights from Athens to Sofia are Aegean Airlines and Sky Express. With an average price for the route of $172 and an overall rating of 8.1, Aegean Airlines is the most popular choice. Sky Express is also a great choice for the route, with an average price of $183 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Athens 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 Athens to Sofia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Athens 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 Athens 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 Athens with another airline. Booking your flights between Athens 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 Athens 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 Athens up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Athens to Sofia

  • Looking for a cheap flight? 25% of our users found flights on this route for $91 or less one-way and $124 or less round-trip.
  • For flights from Athens to Sofia, the only departure and destination airports are Athens International Airport Eleftherios Venizelos (ATH) and Sofia Airport (SOF). After deplaning from your Athens to Sofia flight at SOF, you will either rent a car, take a cab or ride-share, or take public transportation to the city center. Bus routes 184 and 84 are examples of less expensive public transportation. In light traffic, these buses take about 45 minutes to get to the city center.
  • By booking Aegean Airlines, which has Athens International Airport Eleftherios Venizelos (ATH) as one of its hubs, you can reliably get a flight that is convenient to your schedule. This is because Aegean has a high frequency of daily flights from ATH to Sofia.
  • Consider booking your economy trip from Athens to Sofia with Turkish Airlines or SWISS to take advantage of ticket and class upgrading services. During your first layover, these airlines may email you, proposing that you pay a discounted cost to join the First Class travelers.
  • SWISS is one of the family-friendly airlines to consider for your travel from Athens to Sofia. When flying with SWISS, your children will love the specially designed SWISS kids' bag, which contains coloring books, crayons, puzzles, miniature toys, activity books, stickers, and other fun surprises to keep them engaged throughout the flight.
  • Munich International Airport (MUC), Vienna International Airport (VIE), and Istanbul Airport (IST) are some common layover airports for flights from Athens to Sofia. For example, if you are flying with Turkish Airlines, you will be having IST as the layover airport.

Prefer to fly direct from Athens to Sofia?

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

Direct departures

Athens Eleftherios V. to Sofia

Monday

Aegean Airlines, Sky Express

Aegean Airlines, Sky Express

Tuesday

Aegean Airlines, Bulgaria Air

Aegean Airlines, Bulgaria Air

Wednesday

Aegean Airlines, Sky Express

Aegean Airlines, Sky Express

Thursday

Aegean Airlines, Bulgaria Air, Sky Express

Aegean Airlines, Bulgaria Air, +1 more

Friday

Aegean Airlines, Bulgaria Air, Sky Express

Aegean Airlines, Bulgaria Air, +1 more

Saturday

Aegean Airlines

Aegean Airlines

Sunday

Aegean Airlines, Sky Express

Aegean Airlines, Sky Express

See more direct flights

Direct returns

Sofia to Athens Eleftherios V.

Monday

Aegean Airlines, Sky Express

Aegean Airlines, Sky Express

Tuesday

Aegean Airlines, Bulgaria Air

Aegean Airlines, Bulgaria Air

Wednesday

Aegean Airlines, Sky Express

Aegean Airlines, Sky Express

Thursday

Aegean Airlines, Bulgaria Air, Sky Express

Aegean Airlines, Bulgaria Air, +1 more

Friday

Aegean Airlines, Bulgaria Air, Sky Express

Aegean Airlines, Bulgaria Air, +1 more

Saturday

Aegean Airlines

Aegean Airlines

Sunday

Aegean Airlines, Sky Express

Aegean Airlines, Sky Express

See more direct flights

Reviews of the top airlines flying from Athens to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Athens 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 Athens 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.
8.1
Aegean AirlinesOverall score based on 814 reviews
7.9Comfort
6.9Entertainment
7.4Food
7.8Boarding
8.6Crew
Airline reviews

The seat was hard as a rock. Business class seats were coach seats with no one in the middle. Service and food were excellent.

8.0 ExcellentAnonymous, Oct 2025MXP - ATH
Read more Aegean Airlines reviews

The seat was hard as a rock. Business class seats were coach seats with no one in the middle. Service and food were excellent.

The crew was awesome. There was a school group of about 60 14 year-olds. The food is standard greek fare, Baklava was pre-packaged like it would normally be sold in a vending machine, and it was the highlight of the meal. Plane was in great shape, and seating was like a any A319 you would experience at a national-level carrier (i.e. not like Ryan Air). Like many European airports, they bused us to the plane, so the process of boarding groups is useless, and not well understood by infrequent travelers.

Departing from the Parikia apport on Paros was chaos. It is a 3rd world airport, and my home has more square footage. Olympic Air has several instances where there are less than two hours between flights leaving Paros. Further, there are two airlines at the airport, so airport resources are limited. With only one check in desk for each airline, the folks who are getting on the earlier flight are the only people who are able to check in. So, don't get there too early to check in. Also, the airport waiting area, after you go through security only holds about 1/2 of a plane's worth of people. So, the security line also has the same restrictions as the check in desks. Depending upon what time you get there, two queues will extend into the entry road. If your plan departs within the hour, go up to the front of the building and check to see which flight they are checking in or running through security.

Every one was attentive, the food was really very good . All and all was an excellent experience .

There was no enterteinment onboard. Food was good, and service too.

It was a short flight. It did leave about 15 minutes late but other than that everything went well!! There was no food service or entertainment so can’t comment on any of that.

Not good, the seat was broken and the middle seat table was not lowering, no option on the food, despite the business class wasn’t full. In the menu offered they had fish or chicken, no chicken available when was my turn (seating in raw 2!)

For a quick trip to athens they did a great job plane was spacious, and we boarded quickly.

it was hard to find the check in at the airport no signs food was average

Short flight. Was not told if there was a kosher option for the snack.

Plane from Skiathos was 40mins late and we arrived at Athens in a completely different terminal to the departure gate. Myself and my daughter had to run for over 15mins to get to the gate at the far end terminal and we made the flight by 3 mins. The distance from arrival and departure should have been explained, so very stress full of r myself and daughter.

The weight and balance of the aircraft was wrong. It took the ground staff 2 hours to find a forklift to reposition a large heavy crate from the back cargo hold to the front cargo hold. I watched this from my seat. The pilots told us we would be 20 minutes then another 10 minutes delayed waiting on the tower to release us.

There was a departure delay of at least one hour. We also waited in line for 40 minutes and then in the bus for 20 minutes.

It was a short flight so food and entertainment wasn’t necessary

The flight went well, but boarding via a shirtless bus was unpleasant

My flight was supposed to leave at 8:35 and arrive at 9:35. The plane took off at 9:20 and we arrived after 10am. Horrible experience and zero organisation.

Relatively good for a LCC, free water and a biscuit, free standard seat selection at check-in. Just be wary of legroom if you're tall, and the boarding process was very disorganised with no announcements and no queue management.

Do not check bags with Sky Express! We were flying from the Milos airport to Athens. Sky Express lost our checked bags. We were on our way to a wedding in Athens.. In fact, more than half of the flight’s passengers had their bags lost / left at the terminal. This was not a large plane (~50 people), so having left that many bags at a very very small airport where there was only one other flight (from another carrier) scheduled that day, is a ridiculously large oversight. Our bags were sent on a meandering ferry to Athens the following day, to arrive at our hotel 3 days later, but it was too late to be helpful. We had to buy outfits and toiletries, etc when we arrived for the event. We are filing a claim with Sky Express for partial reimbursement.

Never heard about them before and was surprised how organized and efficient they are.

These were tickets purchased with a stolen credit card number.

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

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