$64 Cheap Flights from Athens (ATH) to Sofia (SOF)

View $64 flight on Wed, Oct 14, 2026Opens in a new window

Popular airlines from Athens Intl. Airport (ATH) to Sofia Airport (SOF)

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Cheap Flights from Athens to Sofia (ATH-SOF)

Prices were available within the past 7 days and start at $64 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Wed, Nov 18 - Mon, Nov 23
ATH
Athens
SOF
Sofia
$117 Roundtrip, found 4 days ago
$117
Roundtrip
found 4 days ago
Select Aegean flight, departing Wed, Nov 18 from Athens to Sofia, returning Mon, Nov 23, priced at $117 found 4 days ago
SKY express
Mon, Jul 6 - Wed, Jul 8
ATH
Athens
SOF
Sofia
$145 Roundtrip, found 4 days ago
$145
Roundtrip
found 4 days ago
Select SKY express flight, departing Mon, Jul 6 from Athens to Sofia, returning Wed, Jul 8, priced at $145 found 4 days ago
Aegean
Fri, Oct 30 - Tue, Nov 3
ATH
Athens
SOF
Sofia
$158 Roundtrip, found 4 days ago
$158
Roundtrip
found 4 days ago
Select Aegean flight, departing Fri, Oct 30 from Athens to Sofia, returning Tue, Nov 3, priced at $158 found 4 days ago
Aegean
Tue, Sep 22 - Wed, Sep 23
ATH
Athens
SOF
Sofia
$158 Roundtrip, found 2 days ago
$158
Roundtrip
found 2 days ago
Select Aegean flight, departing Tue, Sep 22 from Athens to Sofia, returning Wed, Sep 23, priced at $158 found 2 days ago
Aegean
Wed, Jun 17 - Tue, Jun 23
ATH
Athens
SOF
Sofia
$160 Roundtrip, found 6 days ago
$160
Roundtrip
found 6 days ago
Select Aegean flight, departing Wed, Jun 17 from Athens to Sofia, returning Tue, Jun 23, priced at $160 found 6 days ago
Aegean
Fri, Jun 19 - Sun, Jun 21
ATH
Athens
SOF
Sofia
$160 Roundtrip, found 2 days ago
$160
Roundtrip
found 2 days ago
Select Aegean flight, departing Fri, Jun 19 from Athens to Sofia, returning Sun, Jun 21, priced at $160 found 2 days ago
SKY express
Fri, Jun 19 - Sun, Jun 21
ATH
Athens
SOF
Sofia
$161 Roundtrip, found 2 days ago
$161
Roundtrip
found 2 days ago
Select SKY express flight, departing Fri, Jun 19 from Athens to Sofia, returning Sun, Jun 21, priced at $161 found 2 days ago
Lufthansa
Thu, Sep 24 - Sat, Sep 26
ATH
Athens
SOF
Sofia
$216 Roundtrip, found 2 days ago
$216
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Sep 24 from Athens to Sofia, returning Sat, Sep 26, priced at $216 found 2 days ago
Swiss International Air Lines
Fri, Sep 11 - Fri, Sep 18
ATH
Athens
SOF
Sofia
$220 Roundtrip, found 3 days ago
$220
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Fri, Sep 11 from Athens to Sofia, returning Fri, Sep 18, priced at $220 found 3 days ago
Bulgaria Air
Sun, Jul 5 - Fri, Jul 31
ATH
Athens
SOF
Sofia
$231 Roundtrip, found 14 hours ago
$231
Roundtrip
found 14 hours ago
Select Bulgaria Air flight, departing Sun, Jul 5 from Athens to Sofia, returning Fri, Jul 31, priced at $231 found 14 hours ago

Frequently asked questions

How much does a flight from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) cost?
You can find cheap one-way flights from $64 and cheap return flights from $117 Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) with Expedia. One-way flights generally range between $133 and $1038, and roundtrip flights usually range from $232 to $1090. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
January is the cheapest month to fly from Athens (ATH) to Sofia (SOF), with average round-trip fares around $195. This price is about 30% lower than the average throughout the year, as demand is generally lower during the winter months. Other cheap months to fly from Athens to Sofia include March and December.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
Choose from 3 airlines operating direct flights from ATH to SOF:

  • Aegean operates around 9 direct flights from ATH to SOF every week
  • Sky Express operates around 7 direct flights from ATH to SOF every week
  • Bulgaria Air operates around 7 direct flights from ATH to SOF every week

What is the cheapest airline that flies from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
Air Serbia is one of the cheapest airlines offering connecting flights from Athens (ATH) to Sofia (SOF), with round-trip tickets starting from around $203. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
To find a cheap flight from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
The best airline to fly with from Athens (ATH) to Sofia (SOF) will differ from traveler to traveler. If you like to fly early, Aegean offers early morning flights. If price is the most important factor, Sky Express typically offers the lowest fares. Aegean offers the most daily flights from Athens to Sofia, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
For flights from Athens (ATH) to Sofia (SOF), January and December are the best months to consider. You can find return flights for about $195 in January, which is a quieter travel time. December is also popular, allowing you to enjoy the festive atmosphere in both cities during the holiday season.*Prices based on flights available on Expedia in the last year.
How many flights per day from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
You can find approximately 2 nonstop flights per day from Eleftherios Venizelos (ATH) to (SOF). For more options, look at flights that include layovers.
What is the earliest flight from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from ATH to SOF. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
The most popular departure times for flights from Eleftherios Venizelos Airport (ATH) to Sofia (SOF) are in the early morning, from 6am to 9am. About 26% of passengers prefer this time window. Lufthansa, Austrian Airlines, and Aegean Airlines offer flights during this window. This timing is favored as it allows travelers to arrive in Sofia early and make the most of their day.
How long does it take to fly from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
A nonstop flight from ATH to SOF typically takes around 1 hour 20 minutes, covering approximately 330 miles. Connecting flights on this route usually add 9 hours 40 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
Business class is available on flights from ATH to SOF. Airlines that offer business class service on this route include:

  • Turkish Airlines
  • Lufthansa
  • Aegean
  • Austrian Airlines
  • LOT Polish Airlines
  • ITA Airways
  • Helvetic Airways
  • Air Baltic
  • Sky Express
  • Swiss International Air Lines

How do I earn miles on a Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) flight with Expedia?
It's easy to earn miles on a Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) at the last minute?
Typically, booking a last minute flight from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) flight and hotel package?
Securing a Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) Sofia Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Athens (ATH-Eleftherios Venizelos) to Sofia (SOF)?
If you booked your Athens (ATH-Eleftherios Venizelos) to Sofia (SOF) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Eleftherios Venizelos
Destination airport
Sofia
Airlines serving
Aegean, Air Serbia, Austrian Airlines, Bulgaria Air, ITA Airways, LOT-Polish Airlines, Lufthansa, SKY express, Swiss International Air Lines, Tarom-Romanian Air Transport, Turkish Airlines
Roundtrip price
$116
Distance
329 mi
Average flight time
1 hour 22 mins

Book with confidence

Athens to Sofia Flights

The cheapest times to fly from Athens to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Athens to Sofia are during the month of November. You can find some of the cheapest flights from Athens to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Athens to Sofia

Sunday is one of the best days to book for cheap flights from Athens to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Athens to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Athens to Sofia in 2026. You can also book with separate airlines for your outbound and return journeys, from $64 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Athens to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Athens to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Athens to Sofia Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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