$71 Cheap Flights from Helsinki (HEL) to Sofia (SOF)

View $71 flight on Fri, Aug 8, 2025Opens in a new window

Popular airlines from Helsinki-Vantaa Airport (HEL) to Sofia Airport (SOF)

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Cheap Flights from Helsinki to Sofia (HEL-SOF)

Prices were available within the past 7 days and start at $71 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Baltic
Mon, Aug 18 - Fri, Dec 19
HEL
Helsinki
SOF
Sofia
$229 Roundtrip, found 17 hours ago
$229
Roundtrip
found 17 hours ago
Select Air Baltic flight, departing Mon, Aug 18 from Helsinki to Sofia, returning Fri, Dec 19, priced at $229 found 17 hours ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$242 Roundtrip, found 5 days ago
$242
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $242 found 5 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$251 Roundtrip, found 5 days ago
$251
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $251 found 5 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$259 Roundtrip, found 5 days ago
$259
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $259 found 5 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$268 Roundtrip, found 5 days ago
$268
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $268 found 5 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$271 Roundtrip, found 5 days ago
$271
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $271 found 5 days ago
Norwegian Air Sweden
Mon, Jun 30 - Mon, Jul 7
HEL
Helsinki
SOF
Sofia
$286 Roundtrip, found 3 days ago
$286
Roundtrip
found 3 days ago
Select Norwegian Air Sweden flight, departing Mon, Jun 30 from Helsinki to Sofia, returning Mon, Jul 7, priced at $286 found 3 days ago
Lufthansa
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$287 Roundtrip, found 5 days ago
$287
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $287 found 5 days ago
Austrian Airlines
Fri, Aug 15 - Tue, Aug 26
HEL
Helsinki
SOF
Sofia
$301 Roundtrip, found 6 days ago
$301
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Fri, Aug 15 from Helsinki to Sofia, returning Tue, Aug 26, priced at $301 found 6 days ago
Turkish Airlines
Fri, Sep 19 - Thu, Sep 25
HEL
Helsinki
SOF
Sofia
$321 Roundtrip, found 5 days ago
$321
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Fri, Sep 19 from Helsinki to Sofia, returning Thu, Sep 25, priced at $321 found 5 days ago
Flights from Helsinki (HEL) to Sofia (SOF)
Origin airport
Vantaa
Destination airport
Sofia
Airlines serving
Aegean, Air Baltic, Austrian Airlines, LOT-Polish Airlines, Lufthansa, Norwegian Air Sweden, Turkish Airlines
Roundtrip price
$228
Distance
1219 mi
Average flight time
2 hours 55 mins

Helsinki to Sofia Flights

The cheapest times to fly from Helsinki to Sofia

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

 

The best time to book a flight from Helsinki to Sofia

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

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 Helsinki to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $71 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 Helsinki to Sofia 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 Helsinki to Sofia 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.

 

Frequently asked questions

How much does a flight from Vantaa Airport (HEL) to Sofia Airport (SOF) cost?
Book cheap return tickets starting from $286 from Vantaa Airport (HEL) to Sofia Airport (SOF). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Norwegian Air Shuttle flight leaving HEL on June 30 2025 and touching down at SOF. The price was last updated on June 26 2025 and has not changed since.
What is the cheapest month to fly from HEL to SOF?
The cheapest flights from HEL to SOF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from HEL to SOF?
With prices starting from $71 for a one-way flight from HEL to SOF, Norwegian Air Shuttle is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from HEL on August 8 2025. Prices were last updated on June 26 2025 and have not changed since.
How many flights per day from Vantaa Airport (HEL) to Sofia Airport (SOF)?
Direct flights from Vantaa Airport (HEL) to Sofia Airport (SOF) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HEL to SOF?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary based 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 Vantaa Airport (HEL) to Sofia Airport (SOF)?
To avoid possible delays on the Vantaa Airport (HEL) to Sofia Airport (SOF) route, fly before 3 PM. Later flights are 22% more likely to be canceled.**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 Vantaa Airport (HEL) to Sofia Airport (SOF) last-minute?
Booking your flight from HEL to SOF right before your trip is generally more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a HEL to SOF flight and hotel package?
You'll typically save money by securing a HEL to SOF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After choosing your ideal flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Vantaa Airport (HEL) to Sofia Airport (SOF)?
Generally, it's possible to reschedule or cancel your HEL to SOF flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.