$112 Cheap Flights from Sofia (SOF) to Skiathos (JSI)

View $112 flight on Mon, Nov 17, 2025Opens in a new window

Popular airlines from Sofia Airport (SOF) to Skiathos (JSI-Skiathos Island National)

Cheap Flights from Sofia to Skiathos (SOF-JSI)

Prices were available within the past 7 days and start at $112 for one-way flights and $363 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$363 Roundtrip, found 6 days ago
$363
Roundtrip
found 6 days ago
Select Aegean flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $363 found 6 days ago
Aegean
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$377 Roundtrip, found 6 days ago
$377
Roundtrip
found 6 days ago
Select Aegean flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $377 found 6 days ago
Aegean
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$415 Roundtrip, found 6 days ago
$415
Roundtrip
found 6 days ago
Select Aegean flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $415 found 6 days ago
SKY express
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$489 Roundtrip, found 6 days ago
$489
Roundtrip
found 6 days ago
Select SKY express flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $489 found 6 days ago
Air France
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$930 Roundtrip, found 6 days ago
$930
Roundtrip
found 6 days ago
Select Air France flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $930 found 6 days ago
KLM
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$961 Roundtrip, found 6 days ago
$961
Roundtrip
found 6 days ago
Select KLM flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $961 found 6 days ago
Bulgaria Air
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$989 Roundtrip, found 6 days ago
$989
Roundtrip
found 6 days ago
Select Bulgaria Air flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $989 found 6 days ago
KLM
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$1,020 Roundtrip, found 6 days ago
$1,020
Roundtrip
found 6 days ago
Select KLM flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $1,020 found 6 days ago
Bulgaria Air
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$1,047 Roundtrip, found 6 days ago
$1,047
Roundtrip
found 6 days ago
Select Bulgaria Air flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $1,047 found 6 days ago
Bulgaria Air
Wed, Sep 24 - Tue, Sep 30
SOF
Sofia
JSI
Skiathos
$1,078 Roundtrip, found 6 days ago
$1,078
Roundtrip
found 6 days ago
Select Bulgaria Air flight, departing Wed, Sep 24 from Sofia to Skiathos, returning Tue, Sep 30, priced at $1,078 found 6 days ago

Frequently asked questions

How much does a flight from Sofia Airport (SOF) to Skiathos Island National Airport (JSI) cost?
Lock in a cheap one-way flight from $112 or cheap return flight from $363 from Sofia Airport (SOF) to Skiathos Island National Airport (JSI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sofia Airport (SOF) to Skiathos Island National Airport (JSI)?
Flying in September is a great way to save, as it's the cheapest month for flights between SOF and JSI. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Sofia Airport (SOF) to Skiathos Island National Airport (JSI)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SOF to JSI flight.
How many flights per day from Sofia Airport (SOF) to Skiathos Island National Airport (JSI)?
There aren't any daily direct flights available from Sofia Airport (SOF) to Skiathos Island National Airport (JSI). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SOF to JSI?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sofia Airport (SOF) to Skiathos Island National Airport (JSI)?
To avoid possible delays on the Sofia Airport (SOF) to Skiathos Island National Airport (JSI) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sofia Airport (SOF) to Skiathos Island National Airport (JSI) last-minute?
Last-minute bookings from SOF to JSI are generally more expensive. For the lowest prices, start looking for flights ahead of time. That said, if you're flexible with your travel plans, you may score a cheap ticket right before your trip.
Is it cheaper to book a SOF to JSI flight and hotel package?
Opting for a SOF to JSI flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sofia Airport (SOF) to Skiathos Island National Airport (JSI)?
If you booked your SOF to JSI flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Sofia
Destination airport
Skiathos Island National
Roundtrip price
$363
Distance
242 mi
Average flight time
1 hour 5 mins

Book with confidence

Book with confidence

Sofia to Skiathos Flights

The cheapest times to fly from Sofia to Skiathos

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 Sofia to Skiathos are during the month of September. You can find some of the cheapest flights from Sofia to Skiathos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sofia to Skiathos

Sunday is one of the best days to book for cheap flights from Sofia to Skiathos: 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 Sofia to Skiathos

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 Sofia to Skiathos in 2025. You can also book with separate airlines for your outbound and return journeys, from $112 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 Sofia to Skiathos 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 Sofia to Skiathos 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.

 

Sofia to Skiathos Flights

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*Available to One Key members.