SOF - HEL

Find cheap flights from Sofia to Helsinki

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Helsinki, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Helsinki, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sofia to Helsinki (SOF-HEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Helsinki that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sofia to Helsinki

Multiple Airlines Logo
SOF-HEL
1218 mimulti-stop
Multiple Airlines Logo
HEL-SOF
1218 mimulti-stop
Multiple Airlines
Find Deal

Everything you should know

When to travel
October
Cheapest • 38% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
Multiple Airlines
Mon 9/15
SOF - HEL • multi-stop
Cheapest one-way
Multiple Airlines
Mon 9/15
SOF - HEL • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Helsinki!
Booking Insights

KAYAK's insights & trends for Sofia to Helsinki flights

Get data-powered insights and trends into flights from Sofia to Helsinki to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Sofia to Helsinki?

The average price of all round-trip flights from Sofia to Helsinki clicked on KAYAK for each day over the last 12 months.

When flying from Sofia to Helsinki, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Sofia, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Sofia to Helsinki?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to Helsinki, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sofia to Helsinki is October, where tickets cost $161 (return) on average. On the other hand, the most expensive months are August and November, where the average cost of round-trip tickets is $359 and $358 respectively.

Can I save money by flying with a layover from Sofia to Helsinki?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $257, prices are generally cheapest when you fly direct.

Good to know

Low seasonSeptember
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 37% increase in price.

When to book flights from Sofia to Helsinki

Are your dates flexible? Find out the best times to travel from Sofia to Helsinki based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sofia to Helsinki

  • Do I need a passport to fly between Sofia and Helsinki?

    Yes, you’ll need a passport to travel to Helsinki from Sofia.

  • Which aircraft models fly most regularly from Sofia to Helsinki?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Sofia to Helsinki flight route.

  • Which is the best airline for flights from Sofia to Helsinki, Norwegian or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Sofia to Helsinki are Norwegian and Lufthansa. With an average price for the route of $175 and an overall rating of 7.8, Norwegian is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $328 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Sofia to Helsinki?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sofia to Helsinki.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sofia to Helsinki?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from Sofia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sofia to Helsinki?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helsinki with an airline and back to Sofia with another airline. Booking your flights between Sofia and HEL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia to Helsinki?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helsinki from Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sofia to Helsinki

  • Looking for a cheap flight? 25% of our users found flights on this route for $175 or less round-trip.

Reviews of the top airlines flying from Sofia to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Helsinki. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia to Helsinki? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
NorwegianOverall score based on 233 reviews
7.6Comfort
6.6Food
7.7Boarding
8.1Crew
6.0Entertainment
Airline reviews

budget airline, not a lot of amenities but perfectly priced for a 3.5hr flight. Crew/Pilots were great, communicative, and overall provided a great experience for the price point. Have flown with Norwegian when coming in/out of Norway for the past x10 years now!

10.0 ExcellentJacob, Sep 2025ATH - OSL
Read more Norwegian reviews

budget airline, not a lot of amenities but perfectly priced for a 3.5hr flight. Crew/Pilots were great, communicative, and overall provided a great experience for the price point. Have flown with Norwegian when coming in/out of Norway for the past x10 years now!

Unfriendly staff at boarding gate. Unclear announcement at about gate change. Low cost airline with no amenities on board. Bring your own water.

Terrible communication about cancellation of flight. Put on a flight the day after our departure day even though there were seats the following day

…not even a power outlet. Nothing but uncomfortable seating with unhelpful staff.

Overall flight was fantastic.i really enjoy the whole journey .

Little more legroom would have been nice. But it's a very short flight, so it was fine really.

Short flight, some waiting to board, but no issues and no frills.

No staff at the gate and the flights were not posted on the board so we missed our flight. Horrible experience. Be VERY careful flying Norwegian. Super limited ability to communicate with their slim staffing and restricted hours.

Tickets were cheap but it says no where that food was not included, I travel Austrian, Swiss and Turkish airlines all the time always food is included, never flew Norwegian again

good entertainment package but rather small seats for business class

They don’t give information on why a flight is delayed in a timely manner. Very frustrating.

I was unable to check in online. When I attempted to do so from the app and Luftansa website, I was directed to Niko.hr which I found out was fraught with errors. The kiosk at airport was not working. I had to wait in line to check in which was inefficient

Expect Business Class seating to be 2 passengers per 3 coach seats, with center blocked. This is typical for flights within Europe on most airlines. Service was excellent!

Exit row seat that cost extra to book had a bad monitor marked as out of order, so clearly something they should have fixed.

Excellent flight overall. Lufthansa Business service was excellent with great cabin crew and very good food and wines. The seat comfort was excellent. Only a slight reduction in score due to the 747-400 being a relatively loud aircraft these days.

They gave us chocolates twice (for whoever would like an extra chocolate - kids did!). I asked for an extra water, and I was given one. Crew was very friendly!

No leg room! Either too hot or cold with these guys!

The aircraft was old, there was no charging sockets, and the seats were narrow and uncomfortable even though I had exit row premium seats.

The Lufthansa app needs a whole revamp flight got delayed and it kept showing original time. Communicate better with you customers

Everything you need to know for your flight from Sofia to Helsinki

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.