ATH to SOF, Athens International Airport "Eleftherios Venizelos" to Sofia International Airport Cheap Flights

Based on HopeGoo data, AEGEAN offers one-way fares as low as US$44 on Cheapest nonstop routes (e.g. ATH to SOF on Tue, Feb 17), while AEGEAN offers Cheapest nonstop round-trips from US$98 departing on Wed, Feb 18 and returning on Fri, Feb 20.

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

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

By analyzing data from all airlines on the HopeGoo 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 HopeGoo data in the past 4 weeks, there is 25 flight per week flying from Athens to Sofia. You can check the weekly schedule for popular airlines on this route below: SKY express: S/-/T/W/T/-/S -- GQ680 (07:52) Bulgaria Air: -/-/-/W/T/-/S -- FB1508 (09:50)

To find best deals on flights from Athens to Sofia, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Feb 17, with one-way flights priced at just US$44. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is AEGEAN. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo 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 HopeGoo 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 February flight calendar, it's currently cheapest to fly from Athens to Sofia on February 10, 2026 with Ryanair, with prices starting at US$42.

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

The time difference between Sofia and Athens is 0h.

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 HopeGoo, 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.