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$512+ Cheap flights from Helsinki (HEL) to Sydney (SYD)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SYD
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Helsinki-Vantaa to Sydney Kingsford Smith are usually found in September or March, booked 80 days in advance, depart on a Tuesday or Thursday and return on a Monday

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 septiembre 17, 2025.

Round-trip from

$1,237
(Qatar Airways)

One-way from

$512
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,311
From Helsinki-Vantaa to Sydney Kingsford Smith
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One-way flight from Helsinki-Vantaa to Sydney Kingsford Smith
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Highest demand for flights based on searches. 8% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Helsinki to Sydney

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 septiembre 17, 2025.

This Qatar Airways deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/134:00 pmHEL - SYD
1 stop41h 50mQatar Airways
lun. 11/177:00 pmSYD - HEL
2 stops28h 15mQatar Airways
Deal found 9/15$1,237
This Turkish Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/307:00 pmHEL - SYD
2 stops28h 25mMultiple Airlines
mié. 11/1212:45 pmSYD - HEL
2 stops31h 50mMultiple Airlines
Deal found 9/17$1,241
This Finnair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/212:50 amHEL - SYD
1 stop23h 45mFinnair
mar. 11/1811:30 amSYD - HEL
1 stop27h 15mFinnair
Deal found 9/16$1,294
This Finnair deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2912:50 amHEL - SYD
1 stop23h 45mFinnair
mié. 11/123:55 pmSYD - HEL
1 stop22h 50mFinnair
Deal found 9/17$1,301
This Turkish Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/227:35 pmHEL - SYD
2 stops31h 10mTurkish Airlines
mié. 10/2212:45 pmSYD - HEL
2 stops30h 55mTurkish Airlines
Deal found 9/16$1,317
This Finnair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1212:50 amHEL - SYD
1 stop26h 10mFinnair
lun. 11/178:45 amSYD - HEL
1 stop30h 00mFinnair
Deal found 9/15$1,337
This Turkish Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/227:35 pmHEL - SYD
2 stops31h 10mTurkish Airlines
jue. 10/2311:00 amSYD - HEL
2 stops32h 40mTurkish Airlines
Deal found 9/16$1,339
This Finnair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/212:50 amHEL - SYD
1 stop23h 45mMultiple Airlines
mar. 11/1811:30 amSYD - HEL
1 stop27h 15mMultiple Airlines
Deal found 9/16$1,363

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated septiembre 17, 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

jue. 10/30

7:00 pm-8:25 am

2 stops28h 25m

Sydney Kingsford Smith

mié. 11/12

12:45 pm-11:35 am

2 stops31h 50m

$1,241

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

lun. 1/26

12:30 pm-7:20 pm

2 stops45h 50m

Sydney Kingsford Smith

mar. 2/10

3:55 pm-11:35 am

2 stops28h 40m

$1,263

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

mié. 10/29

12:50 am-9:35 am

1 stop23h 45m

Sydney Kingsford Smith

mié. 11/12

2:30 pm-5:45 am

1 stop24h 15m

$1,302

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

mié. 11/12

12:50 am-9:35 am

1 stop23h 45m

Sydney Kingsford Smith

lun. 11/17

11:05 am-5:45 am

1 stop27h 40m

$1,345

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

dom. 11/2

12:50 am-9:35 am

1 stop23h 45m

Sydney Kingsford Smith

mar. 11/18

11:30 am-5:45 am

1 stop27h 15m

$1,371

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

mié. 11/19

11:55 pm-7:25 am

1 stop22h 30m

Sydney Kingsford Smith

mié. 11/26

11:40 am-5:40 am

1 stop27h 00m

$1,555

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

sáb. 9/27

12:35 am-10:50 am

1 stop27h 15m

Sydney Kingsford Smith

jue. 10/23

1:45 pm-6:00 am

1 stop24h 15m

$1,710

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

sáb. 9/27

12:35 am-10:50 am

1 stop27h 15m

Sydney Kingsford Smith

mar. 10/28

3:55 pm-5:45 am

1 stop22h 50m

$1,710

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

dom. 9/28

4:55 pm-6:15 am

1 stop30h 20m

Sydney Kingsford Smith

lun. 10/27

8:50 am-12:55 pm

1 stop37h 05m

$1,771

HelsinkiSydney

HEL - SYD

HELSYD

Helsinki-Vantaa

jue. 11/13

6:15 am-9:15 pm

2 stops30h 00m

Sydney Kingsford Smith

lun. 11/17

4:10 pm-10:40 am

2 stops27h 30m

$1,795

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 18 results
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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 round-trip 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 round-trip flight from Helsinki to Sydney. Price data was last updated on September 12, 2025.

The best time to book flights from Helsinki to Sydney is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Helsinki to Sydney (average of $1,032). Flying from Helsinki to Sydney in December is currently the most expensive (average of $1,627). 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 septiembre 17, 2025.

It’s typically best to fly out from Helsinki to Sydney in the afternoon. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip 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 septiembre 17, 2025.
Read reviews from past customers who have flown Finnair from Helsinki to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,324 reviews

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

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
1,324 reviews
Finnair
7.6
Good
1,324 reviews

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

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?

    There are many flights that can get you from Helsinki to Sydney in 23h 45m. Fly via Finnair to get the fastest option. There are 9438 mi between Helsinki and Sydney.

  • What is the cheapest airline to fly from Helsinki to Sydney round-trip?

    Currently priced at $1,077, Finnair will fly you from Helsinki to Sydney and back. In addition to Finnair, many other airlines offer competitively priced options for your trip. Finnair is priced at 27% lower than the current average price of a flight leaving 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 vacation 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, March is the cheapest month in which you can book a flight from Helsinki to Sydney (average of $1,032). Flying from Helsinki to Sydney in December is currently the most expensive (average of $1,627). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Helsinki to Sydney

Discover the top airline 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 2,558,603 searches. Data last updated septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$1,077Average$1,360FlexibilityNo cancel feeOn-time76%

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