$1,027 Cheap Flights from Adelaide (ADL) to Helsinki (HEL)

View $1,027 flight on Fri, Sep 5, 2025Opens in a new window

Popular airlines from Adelaide, SA Airport (ADL) to Helsinki-Vantaa Airport (HEL)

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Cheap Flights from Adelaide to Helsinki (ADL-HEL)

Prices were available within the past 7 days and start at $1,027 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Adelaide (ADL) to Helsinki (HEL)
Origin airport
Adelaide
Destination airport
Vantaa
Distance
9070 mi

Adelaide to Helsinki Flights

The cheapest times to fly from Adelaide to Helsinki

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

 

The best time to book a flight from Adelaide to Helsinki

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

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 Adelaide to Helsinki in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,027 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 Adelaide to Helsinki 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 Adelaide to Helsinki 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 Adelaide Airport (ADL) to Vantaa Airport (HEL) cost?
Lock in a cheap one-way flight from $1,027 or cheap return flight from Adelaide Airport (ADL) to Vantaa Airport (HEL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Adelaide Airport (ADL) to Vantaa Airport (HEL)?
Traveling in may help you find better deals, as it's the cheapest month for flights between ADL and HEL. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Adelaide Airport (ADL) to Vantaa Airport (HEL)?
To find the cheapest airline that'll fly you from ADL to HEL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Adelaide Airport (ADL) to Vantaa Airport (HEL)?
You'll have to hop on a flight with a layover when traveling from Adelaide Airport (ADL) to Vantaa Airport (HEL). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from ADL to HEL?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, airline 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 Adelaide Airport (ADL) to Vantaa Airport (HEL)?
To arrive at Vantaa Airport (HEL) without delays, select a flight that leaves from Adelaide Airport (ADL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Adelaide Airport (ADL) to Vantaa Airport (HEL) last-minute?
Last-minute fares from ADL to HEL are usually more expensive. To secure the cheapest rates, start looking for flights well ahead of time. That being said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book an ADL to HEL flight and hotel package?
Booking an ADL to HEL flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our extensive range of hotels and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Adelaide Airport (ADL) to Vantaa Airport (HEL)?
If you booked your ADL to HEL 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 ticket 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 for further details.

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*Available to One Key members.