Cheap Flights from Athens to Sofia from US$45

Frequently Asked Questions

• What are the cheapest flights from Athens to Sofia (ATH-SOF)?

  Based on Trip.com data, Ryanair offers one-way fares as low as US$45 on Cheapest nonstop routes (e.g. ATH to SOF on Tue, Oct 20), while SKY express offers Cheapest nonstop round-trips from US$133 departing on Fri, Oct 2 and returning on Sun, Oct 4.

• Which airlines offer direct flights from Athens to Sofia?

  At the moment, you can catch a nonstop flight from Athens to Sofia with the following airlines, including: AEGEAN SKY express Bulgaria Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Athens to Sofia?

  It takes about 1 hour 25 minutes to fly from Athens to Sofia.

• When is the best time to book flights from Athens to Sofia?

  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.

• How many flights are there per week from Athens to Sofia?

  Based on Trip.com data in the past 4 weeks, there is 28 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/-/F/S -- A3980 (09:10) Bulgaria Air: S/M/T/W/-/F/S -- FB1506 (09:10)

• How can I find the best deals on flights from Athens to Sofia?

  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 Tue, Oct 20, with one-way flights priced at just US$45.
  · 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.

• When are flight tickets from Athens (ATH) to Sofia (SOF) the cheapest?

  The cheapest months to fly from Athens to Sofia is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Athens to Sofia on?

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Athens to Sofia on September 17, 2026 with Wizz Air, with prices starting at US$61.

• Which airports fly into Sofia from Athens?

  You can land at any one of the following hubs in Sofia: Sofia Airport (SOF). Flying from Athens International Airport "Eleftherios Venizelos" to Sofia Airport (ATH-SOF) is by far the most common option on this route.

• Is there any time difference between Athens and Sofia?

  The time difference between Sofia and Athens is 0m.

• How do I change or cancel my ticket from Athens to Sofia?

  Tickets can only be changed or canceled 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.

• What is the average cost of a one-way flight from Athens to Sofia?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Athens to Sofia is US$227. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Athens to Sofia?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Athens to Sofia is US$265. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Athens to Sofia on Trip.com?

  Enter Athens and Sofia, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Athens to Sofia route?

  SKY expressare the most popular budget airlines flying from Athens to Sofia. Check baggage, seat and payment fees before comparing the final price.