ATH - SOF

$57 Find Cheap Flights from Athens to Sofia - Compare and Save

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Everything you should know

Cheapest round-trip
$105
Typical prices: $148-$215
Aegean Airlines
Tue 11/20Thu 11/22
ATH - SOF • Non-stop
Cheapest one-way
$57
Typical prices: $86-$133
Sky Express
Wed 2/7
ATH - SOF • Non-stop
Nonstop flights
You can fly direct with Aegean Airlines, Sky Express and Bulgaria Air. Average duration is 1h 29m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you love your trip to Sofia!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Athens to Sofia (ATH-SOF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Athens to Sofia

Fri, Nov 20 - Sun, Nov 22
Aegean Airlines Logo
6:50 pm - 8:10 pmATH  Athens Eleftherios V.-SOF Sofia
1h 20mnonstop
Aegean Airlines Logo
9:00 pm - 10:15 pmSOF  Sofia-ATH Athens Eleftherios V.
1h 15mnonstop
$105Aegean Airlines
Thu, Feb 11 - Wed, Feb 17
Sky Express Logo
7:45 am - 9:30 amATH  Athens Eleftherios V.-SOF Sofia
1h 45mnonstop
Sky Express Logo
10:05 am - 11:40 amSOF  Sofia-ATH Athens Eleftherios V.
1h 35mnonstop
$105Sky Express
Wed, Feb 17 - Wed, Feb 24
Sky Express Logo
7:45 am - 9:30 amATH  Athens Eleftherios V.-SOF Sofia
1h 45mnonstop
Sky Express Logo
10:05 am - 11:40 amSOF  Sofia-ATH Athens Eleftherios V.
1h 35mnonstop
$106Sky Express
Wed, Feb 10 - Wed, Feb 17
Sky Express Logo
7:45 am - 9:30 amATH  Athens Eleftherios V.-SOF Sofia
1h 45mnonstop
Sky Express Logo
10:05 am - 11:40 amSOF  Sofia-ATH Athens Eleftherios V.
1h 35mnonstop
$106Sky Express
Thu, Feb 11 - Mon, Feb 15
Aegean Airlines Logo
6:50 pm - 8:10 pmATH  Athens Eleftherios V.-SOF Sofia
1h 20mnonstop
Aegean Airlines Logo
10:05 am - 11:20 amSOF  Sofia-ATH Athens Eleftherios V.
1h 15mnonstop
$109Aegean Airlines
Fri, Nov 20 - Sun, Nov 22
Aegean Airlines Logo
6:50 pm - 8:10 pmATH  Athens Eleftherios V.-SOF Sofia
1h 20mnonstop
Aegean Airlines Logo
9:00 pm - 10:15 pmSOF  Sofia-ATH Athens Eleftherios V.
1h 15mnonstop
$111Aegean Airlines
Fri, Nov 20 - Sun, Nov 22
Aegean Airlines Logo
6:50 pm - 8:10 pmATH  Athens Eleftherios V.-SOF Sofia
1h 20mnonstop
Aegean Airlines Logo
9:00 pm - 10:15 pmSOF  Sofia-ATH Athens Eleftherios V.
1h 15mnonstop
$112Aegean Airlines
Fri, Nov 20 - Sun, Nov 22
Multiple Airlines Logo
6:50 pm - 8:10 pmATH  Athens Eleftherios V.-SOF Sofia
1h 20mnonstop
Multiple Airlines Logo
8:20 pm - 9:55 pmSOF  Sofia-ATH Athens Eleftherios V.
1h 35mnonstop
$117Multiple Airlines
Sun, Feb 14 - Wed, Feb 17
Multiple Airlines Logo
9:55 am - 3:45 pmATH  Athens Eleftherios V.-SOF Sofia
5h 50m1 stop Budapest Ferenc Liszt Intl
Multiple Airlines Logo
10:05 am - 11:40 amSOF  Sofia-ATH Athens Eleftherios V.
1h 35mnonstop
$119Multiple Airlines
Sun, Feb 14 - Thu, Feb 18
Multiple Airlines Logo
9:55 am - 3:45 pmATH  Athens Eleftherios V.-SOF Sofia
5h 50m1 stop Budapest Ferenc Liszt Intl
Multiple Airlines Logo
10:05 am - 11:40 amSOF  Sofia-ATH Athens Eleftherios V.
1h 35mnonstop
$120Multiple Airlines
Booking Insights

Price, demand and travel trends for Athens to Sofia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Athens to Sofia?

Round-trip flights from Athens to Sofia typically range from $148 to $215. The lowest price found in the past 5 days was $105, on Aegean Airlines.

What's the cheapest day of the week to fly from Athens to Sofia?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Athens to Sofia. It’s 6% cheaper than the average day, while Tuesday is the most expensive, with prices 15% higher.

What’s the cheapest month to fly from Athens to Sofia?

•November is the cheapest month to fly from Athens to Sofia at $132 round-trip.
•July ($197) and April ($193) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 49% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Athens to Sofia the cheapest?

Flights from Athens to Sofia are cheapest 10 weeks before departure. Booking in this window typically costs about 47% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Athens to Sofia

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on Aegean Airlines

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.

Daniel Scheffler

Daniel Scheffler

Expert on Sky Express

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.

Key details for Athens to Sofia flights

Low season

May

Cheapest flight

$57
Beat the crowds with an average 28% drop in travelers.
The most popular month to fly with an average 48% increase in travelers.
One-way 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

Your Athens to Sofia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Athens to Sofia?

    These are the earliest and latest flight times available from Athens to Sofia:

    • Earliest: departs at 7:35 am and lands at 9:04 am
    • Latest: departs at 9:00 pm and lands at 10:29 pm.

    The flight takes about 1h 29m.

  • What cabin classes can I book on flights from Athens to Sofia?

    Two cabin classes are available on flights from Athens to Sofia:

    • Economy Class
    • Business Class

  • How long is a flight from Athens to Sofia?

    A nonstop flight from Athens to Sofia takes 1h 29m, covering 330 miles.

  • Do I need a passport to fly from Athens to Sofia?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Athens to Sofia flight?

    Round-trip flights from Athens to Sofia range from $148 to $215, with an average of $180 over the past 12 months. Anything below $148 counts as a good deal.

  • How expensive are last-minute Athens to Sofia flights?

    Last-minute fares on this route (booked within two weeks of departure) run 13% above the $180 route average. Book 10 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Athens to Sofia?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $135 round-trip via Budapest Ferenc Liszt Intl (BUD), compared to $179 for nonstop.

  • How does on-time performance compare across airlines flying from Athens to Sofia?

    Sky Express is slightly above the route average for timely arrivals, while Aegean Airlines has a lower on-time arrival rate. On-time arrival rates on Athens to Sofia flights are:

    • Sky Express: 90% on time
    • Aegean Airlines: 83% on time
    • Bulgaria Air: 79% on time

    Overall, flights on this route are punctual 85% of the time on average.

  • What is the standard checked-bag allowance on flights from Athens to Sofia?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $29–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Athens to Sofia?

    The ATR 42 / ATR 72 family is used most often on this route, operated mainly by Sky Express and Hahn Air Systems. Other aircraft seen on the route include Airbus A320-100/200 variants.

  • How are flight departures from Athens to Sofia spread across the day?

    Morning is the busiest departure period on Athens to Sofia flights, with 50% of flights leaving in that window. Evening departures account for 50%, afternoon flights for 0%, and night flights for 0%.

  • How are flight prices from Athens to Sofia looking right now?

    One-way fares from Athens to Sofia are currently lower than usual. Average one-way flight prices are about $66, which is 35% below the typical average for this route.

  • What car rental options are available at Sofia Airport (SOF)?

    Sofia Airport (SOF) hosts 5 major car rental companies, with daily rates averaging $21 for economy cars. Top options include:

    • MEXRENTACAR
    • NU Car
    • Top Rent a Car - Bulgaria
    • Priceless
    • Easyrent

  • Which airports can I use when flying from Athens to Sofia?

    Flights from Athens to Sofia usually depart from Athens Eleftherios V. (ATH) and arrive at Sofia (SOF).

  • What time of day has the fewest delays on flights from Athens to Sofia?

    Morning flights have the fewest delays on this route, while night departures tend to have the most.

  • At what point is a flight considered delayed from Athens to Sofia?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Athens to Sofia route, 15% of flights were delayed in the past 3 months, with delays averaging 1h 33m.

  • Which airports do connecting flights from Athens to Sofia pass through?

    Most connecting flights from Athens to Sofia pass through Budapest Ferenc Liszt Intl (BUD), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Athens to Sofia?

    Yes. Flexible dates can save you up to 19% on flights from Athens to Sofia. Friday is the cheapest departure day at $170 round-trip on average, while Tuesday is the most expensive at $208, a difference of $38.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Athens to Sofia?

    3 airlines operate flights between Athens and Sofia. The airlines offering nonstop flights on this route include:

    • Aegean Airlines
    • Sky Express
    • Bulgaria Air

  • What popular places can I visit in Sofia?

    Some of the most popular sights in Sofia are Vasil Levski National Stadium, National Palace of Culture and Central Sofia Market Hall. These are among the most viewed places in Sofia on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Athens to Sofia flights?

    Among airlines operating Athens to Sofia flights:

    • Aegean Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Athens to Sofia flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aegean Airlines: a cabin bag and a checked bag in Economy Class
    • Sky Express: a cabin bag and a checked bag in Economy Class
    • Bulgaria Air: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • 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.

Your guide to booking Athens to Sofia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Tuesday. On this route, Friday flights average $170, about $38 less than Tuesday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 47% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Athens to Sofia trip for November. Fares historically average $132 round-trip in that month - typically $65 less than the most expensive month, which is July (based on the last 12 months).
  • For the best chance of arriving on time, fly with Sky Express. Over the past three months, 90% of Sky Express flights from Athens to Sofia arrived on time, slightly above the route average of 85%. When flights on this route arrive late, they're delayed by an average of 1h 33m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Budapest Ferenc Liszt Intl Airport (BUD) can be cheaper than flying direct. The cheapest layover option averages $135 round-trip on this route - about $44 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sofia Airport.

    • Hotel Premier Airport Sofia
    • ibis Sofia Airport
    • Hotel Consul
  • 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?

 
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,Bulgaria Air

Aegean Airlines,Bulgaria Air

Sunday

Aegean Airlines,Bulgaria Air,Sky Express

Aegean Airlines,Bulgaria Air, +1 more

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,Bulgaria Air

Aegean Airlines,Bulgaria Air

Sunday

Aegean Airlines,Bulgaria Air,Sky Express

Aegean Airlines,Bulgaria Air, +1 more

See more direct flights

More options for your flight from Athens to Sofia

Complete your trip to Sofia with a hotel stay or car rental