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Cheap flights from Helsinki to Sydney from $809

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SYD
14 12月 — 21 12月1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Helsinki-Vantaa to Sydney Kingsford Smith are usually found in September or June, booked 65 days in advance, depart on a Tuesday or Wednesday and return on a Monday

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Cheapest flights from Helsinki to Sydney
Explore the most affordable flight options available from Helsinki to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 11月 2025.

週一 1/1216:00HEL - SYD
3 stops35h 20mMultiple Airlines
週日 7/1220:05SYD - HEL
3 stops33h 15mMultiple Airlines
Deal found 12/11$2,008
週一 17/1113:55HEL - SYD
3 stops43h 55mMultiple Airlines
週日 30/1117:35SYD - HEL
3 stops41h 00mMultiple Airlines
Deal found 12/11$2,028
週四 20/1116:40HEL - SYD
3 stops31h 35mMultiple Airlines
週三 3/1213:35SYD - HEL
3 stops32h 20mMultiple Airlines
Deal found 13/11$2,065
週四 20/1116:40HEL - SYD
2 stops41h 10mMultiple Airlines
週四 4/1211:40SYD - HEL
1 stop27h 00mMultiple Airlines
Deal found 13/11$2,222
週四 20/1112:30HEL - SYD
2 stops45h 50mTurkish Airlines
週四 4/1212:00SYD - HEL
2 stops39h 05mTurkish Airlines
Deal found 13/11$2,281

Cheap flight deals from Helsinki to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Helsinki (HEL) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 11月 2025.

Round-trip from

$1,895

One-way from

$809

Popular in

December

Cheapest in

September

Average price

$2,211
Turkish Airlines
  • Turkish Airlines
  • 12/3-16/3
  • 4 total stops
  • 75h 40m total
  • Helsinki to Sydney
Search Deals
7/12
  • 7/12
  • 3 total stops
  • 47h 50m total
  • Helsinki to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($347 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($91 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Helsinki to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 14 11月 2025.
Use the filters below to find and compare flights from Helsinki to Sydney that are best for you.

Fly from

Helsinki

Fly to

Sydney

Route

Depart

Return

Price

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週四 12/3

12:30-19:20

2 stops45h 50m

Sydney Kingsford Smith

週一 16/3

21:15-18:05

2 stops29h 50m

$1,895

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週一 1/12

16:00-12:20

3 stops35h 20m

Sydney Kingsford Smith

週日 7/12

20:05-20:20

3 stops33h 15m

$2,008

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週四 22/1

12:30-19:20

2 stops45h 50m

Sydney Kingsford Smith

週四 29/1

12:00-18:05

2 stops39h 05m

$2,016

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週三 11/3

00:50-12:00

1 stop26h 10m

Sydney Kingsford Smith

週一 16/3

11:05-05:45

1 stop27h 40m

$2,026

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週六 21/2

11:00-18:50

3 stops46h 50m

Sydney Kingsford Smith

週五 6/3

21:15-22:50

3 stops34h 35m

$2,130

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週六 21/2

16:00-08:40

2 stops31h 40m

Sydney Kingsford Smith

週五 6/3

21:40-14:15

1 stop25h 35m

$2,161

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週一 26/1

12:30-19:20

2 stops45h 50m

Sydney Kingsford Smith

週二 10/2

12:45-11:35

2 stops31h 50m

$2,171

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週六 21/2

23:55-07:25

1 stop22h 30m

Sydney Kingsford Smith

週五 6/3

11:05-05:45

1 stop27h 40m

$2,237

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週五 20/3

20:55-07:35

1 stop25h 40m

Sydney Kingsford Smith

週日 12/4

07:40-05:35

1 stop28h 55m

$2,307

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

週日 7/12

10:00-18:50

3 stops47h 50m

$809

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 18 results
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2

Best time to book a flight from Helsinki to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Helsinki with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helsinki to Sydney

How far ahead should I book a flight from Helsinki to Sydney?

Use this chart to determine the optimal time to book a return flight from Helsinki to Sydney. Price data was last updated on 7 November 2025.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Helsinki to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Helsinki to Sydney?

Currently, September is the cheapest month in which you can book a flight from Helsinki to Sydney (average of $1,305). Flying from Helsinki to Sydney in December is currently the most expensive (average of $2,013). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HEL to SYD?

Find hourly flight availability from Helsinki to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 11月 2025.

It’s optimal to fly from Helsinki to Sydney at midday. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the morning.

How much does it cost for a return flight from Helsinki to Sydney?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 14 11月 2025.
Get a feel of what it's like to fly with Finnair and Lufthansa from Helsinki to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

6.7

Boarding

7.6

Entertainment

6.9

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

6.7

Boarding

7.6

Entertainment

6.9

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Lufthansa
6.8
Okay
7,572 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

6.7

Boarding

7.6

Entertainment

6.9

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.

Related info for your journey

Find useful and relevant information for your journey from Helsinki to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Helsinki to Sydney?

    A quick flight from Helsinki to Sydney can take about 26h 10m. Turkish Airlines provides one of the quickest options available for as low as $2,026. Helsinki and Sydney are separated by a distance of 15189 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Helsinki to Sydney round-trip?

    Lufthansa, at $1,472, was found to be the cheapest airline from Helsinki to Sydney. An alternate airline flying to your destination would be Finnair. These flights start at 34% lower than the current average price 3 months from now.

  • Can I find deals for flights from Helsinki to Sydney that include hotel bookings?

    Yes. In addition to deals on Helsinki to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Helsinki to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helsinki to Sydney.

  • Can I find deals for business class flights from Helsinki to Sydney?

    Yes. Cheapflights offers flight deals from Helsinki to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helsinki to Sydney?

    Currently, September is the cheapest month in which you can book a flight from Helsinki to Sydney (average of $1,305). Flying from Helsinki to Sydney in December is currently the most expensive (average of $2,013). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Helsinki to Sydney

Discover the top 2 airlines that operate flights from Helsinki to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 14 11月 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$1,472Average$1,492FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest$1,740Average$2,010FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Helsinki to Sydney?

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Why should you use Cheapflights to find cheap flight tickets from Helsinki to Sydney?

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Can Cheapflights find flights from Helsinki to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from Helsinki to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from Helsinki to Sydney become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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