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Cheap Flights from Athens to Sofia

Popular airlines from Athens to Sofia

You can choose from 1 airlines that fly from Athens to Sofia, including AEGEAN, SKY express offers the lowest prices on this route.
AEGEAN logo AEGEAN
Airlines are determined based on actual purchased flight tickets from Athens to Sofia according to previous 12 months data from Trip.com.

Explore the cheapest flights from Athens to Sofia in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at THB 2,070, and round-trip direct tickets start at THB 4,260.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flying from Athens to Sofia

The distance between Athens and Sofia is approximately 531.13km. It takes around 1 hour 25 minutes on average to fly from Athens to Sofia. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight priceTHB 1,340
Cheapest return ticket priceTHB 4,260
Off-season for travelOctober
Peak season for travelJuly
Flight distance531.13km
Average flight time1 hour 25 minutes
Popular airlineAEGEAN
Flight statistics for the Athens–Sofia route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Athens to Sofia.

What is the cheapest month for one-way flights from Athens to Sofia?

The average price of one-way flights from Athens to Sofia purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Athens to Sofia is November, with an average price of THB 3,220, and the most expensive month is January, with an average price of up to THB 5,640.

THB 5,640
THB 4,430
THB 3,220
THB 2,010
    Cheapest
  • THB 4,300
    Jul
  • THB 3,620
    Aug
  • THB 4,070
    Sep
  • THB 3,840
    Oct
  • THB 3,220
    Nov
  • THB 3,640
    Dec
  • THB 5,640
    Jan
  • THB 4,130
    Feb
  • THB 5,590
    Mar
  • THB 4,440
    Apr
  • THB 4,940
    May
  • THB 3,660
    Jun

What is the cheapest month for round-trip flights from Athens to Sofia?

The average price of round-trip flights from Athens to Sofia purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for round-trip flights from Athens to Sofia is November, with an average price of THB 4,410, and the most expensive month is February, with an average price of up to THB 12,600.

THB 12,600
THB 8,505
THB 4,410
THB 315
    Cheapest
  • THB 6,580
    Jul
  • THB 5,880
    Aug
  • THB 11,190
    Sep
  • THB 6,380
    Oct
  • THB 4,410
    Nov
  • THB 6,540
    Dec
  • THB 5,210
    Jan
  • THB 12,600
    Feb
  • THB 7,120
    Mar
  • THB 6,920
    Apr
  • THB 7,590
    May
  • THB 5,810
    Jun

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Athens (ATH) to Sofia (SOF)?

    Based on Trip.com data, Ryanair offers one-way fares as low as THB 1,340 on Cheapest nonstop routes (e.g. ATH to SOF on Fri, Jul 24), while SKY express offers Cheapest nonstop round-trips from THB 4,260 departing on Fri, Jul 17 and returning on Sun, Jul 19.
  • At the moment, you can catch a direct flight from Athens to Sofia with the following airlines, including: AEGEAN Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 1 hour 25 minutes to fly from Athens (ATH) to Sofia (SOF).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Athens to Sofia is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 29 flight per week flying from Athens to Sofia. You can check the weekly schedule for popular airlines on this route below: AEGEAN: S/M/T/W/T/F/- -- A3980 (09:04)
  • To find best deals on flights from Athens to Sofia, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Jul 24, with one-way flights priced at just THB 1,340.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is SKY express.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sofia travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Athens to Sofia is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Athens to Sofia on July 21, 2026 with Ryanair, with prices starting at THB 1,760.
  • You can land at any one of the following hubs in Sofia, with Athens International Airport "Eleftherios Venizelos" to Sofia Airport (ATH-SOF) is by far the most common option on this route: Sofia Airport (SOF).
  • The time difference between Sofia and Athens is 0h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.