$100 Cheap Flights from Helsinki (HEL) to Istanbul (IST)

View $100 flight on Wed, Aug 27, 2025Opens in a new window

Popular airlines from Helsinki-Vantaa Airport (HEL) to Istanbul Airport (IST)

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Cheap Flights from Helsinki to Istanbul (HEL-IST)

Prices were available within the past 7 days and start at $100 for one-way flights and $222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Pegasus Airlines
Thu, Dec 4 - Thu, Dec 11
HEL
Helsinki
SAW
Istanbul
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select Pegasus Airlines flight, departing Thu, Dec 4 from Helsinki to Istanbul, returning Thu, Dec 11, priced at $222 found 2 days ago
Air Baltic
Wed, Dec 24 - Wed, Dec 31
HEL
Helsinki
IST
Istanbul
$239 Roundtrip, found 7 hours ago
$239
Roundtrip
found 7 hours ago
Select Air Baltic flight, departing Wed, Dec 24 from Helsinki to Istanbul, returning Wed, Dec 31, priced at $239 found 7 hours ago
Pegasus Airlines
Sun, Aug 17 - Fri, Sep 5
HEL
Helsinki
SAW
Istanbul
$240 Roundtrip, found 1 day ago
$240
Roundtrip
found 1 day ago
Select Pegasus Airlines flight, departing Sun, Aug 17 from Helsinki to Istanbul, returning Fri, Sep 5, priced at $240 found 1 day ago
Pegasus Airlines
Sat, Sep 6 - Sat, Sep 13
HEL
Helsinki
SAW
Istanbul
$241 Roundtrip, found 5 days ago
$241
Roundtrip
found 5 days ago
Select Pegasus Airlines flight, departing Sat, Sep 6 from Helsinki to Istanbul, returning Sat, Sep 13, priced at $241 found 5 days ago
Pegasus Airlines
Sat, Sep 6 - Tue, Sep 9
HEL
Helsinki
SAW
Istanbul
$248 Roundtrip, found 5 days ago
$248
Roundtrip
found 5 days ago
Select Pegasus Airlines flight, departing Sat, Sep 6 from Helsinki to Istanbul, returning Tue, Sep 9, priced at $248 found 5 days ago
Air Baltic
Fri, Oct 3 - Wed, Oct 29
HEL
Helsinki
IST
Istanbul
$252 Roundtrip, found 1 day ago
$252
Roundtrip
found 1 day ago
Select Air Baltic flight, departing Fri, Oct 3 from Helsinki to Istanbul, returning Wed, Oct 29, priced at $252 found 1 day ago
Lufthansa
Sun, Sep 7 - Wed, Sep 24
HEL
Helsinki
IST
Istanbul
$253 Roundtrip, found 7 hours ago
$253
Roundtrip
found 7 hours ago
Select Lufthansa flight, departing Sun, Sep 7 from Helsinki to Istanbul, returning Wed, Sep 24, priced at $253 found 7 hours ago
Pegasus Airlines
Sat, Sep 6 - Sat, Sep 13
HEL
Helsinki
SAW
Istanbul
$253 Roundtrip, found 5 days ago
$253
Roundtrip
found 5 days ago
Select Pegasus Airlines flight, departing Sat, Sep 6 from Helsinki to Istanbul, returning Sat, Sep 13, priced at $253 found 5 days ago
Norwegian Air Shuttle
Wed, Aug 20 - Wed, Aug 27
HEL
Helsinki
IST
Istanbul
$350 Roundtrip, found 6 days ago
$350
Roundtrip
found 6 days ago
Select Norwegian Air Shuttle flight, departing Wed, Aug 20 from Helsinki to Istanbul, returning Wed, Aug 27, priced at $350 found 6 days ago
KLM
Wed, Dec 10 - Wed, Dec 24
HEL
Helsinki
IST
Istanbul
$354 Roundtrip, found 11 hours ago
$354
Roundtrip
found 11 hours ago
Select KLM flight, departing Wed, Dec 10 from Helsinki to Istanbul, returning Wed, Dec 24, priced at $354 found 11 hours ago
Flights from Helsinki (HEL) to Istanbul (SAW)
Origin airport
Vantaa
Destination airport
Sabiha Gokcen Intl.
Airlines serving
Aegean, Air Baltic, Air France, British Airways, Finnair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Turkish Airlines
Roundtrip price
$221
Distance
1353 mi
Average flight time
3 hours 47 mins

Helsinki to Istanbul Flights

The cheapest times to fly from Helsinki to Istanbul

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

 

The best time to book a flight from Helsinki to Istanbul

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

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 Istanbul in 2025. You can also book with separate airlines for your outbound and return journeys, from $100 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 Istanbul 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 Istanbul 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 Istanbul (IST) cost?
Cheap return flights from Vantaa Airport (HEL) to Istanbul (IST) start from $398. 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 Turkish Airlines and Pegasus Airlines flight leaving HEL on July 11 2025 and touching down at IST. The price was last updated on June 20 2025 and has not changed since.
What is the cheapest month to fly from HEL to IST?
The cheapest flights from HEL to IST 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 IST?
Currently, the cheapest airline operating one-way flights from HEL to IST is Turkish Airlines. You can take off on this route from $255. 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 14 2025. Prices were last updated on June 20 2025 and have not changed since.
How many flights per day from Vantaa Airport (HEL) to Istanbul (IST)?
Nonstop flights from Vantaa Airport (HEL) to Istanbul (IST) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HEL to IST?
Usually you'll have the most choice when it comes to flights 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 Vantaa Airport (HEL) to Istanbul (IST)?
To avoid possible delays on the Vantaa Airport (HEL) to Istanbul (IST) route, travel before 3 PM. Departures after this hour 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 Istanbul (IST) last-minute?
Holding off until just before your departure to book your flight from HEL to IST often results in higher prices. While you may come across some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Can I cancel or change the date of my flight from Vantaa Airport (HEL) to Istanbul (IST)?
If you booked your HEL to IST flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.