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Cheap flights from Sydney to Sumatra from $352

SYD — KNO
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Sumatra

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Sumatra

Sat 17/1014:00 -
2 stops25h 30m
Tue 27/1017:40 -
1 stop21h 10m
Deal found 8/9$658
Thu 19/1113:25 -
1 stop30h 45m
Mon 30/1116:55 -
1 stop21h 55m
Deal found 7/9$667
Thu 15/1014:00 -
1 stop29h 15m
Sun 25/1016:55 -
1 stop15h 15m
Deal found 8/9$802
Thu 19/1109:50 -
2 stops50h 10m
Mon 30/1116:55 -
1 stop21h 55m
Deal found 7/9$807
Wed 7/1021:35 -
1 stop21h 40m
Wed 14/1006:10 -
1 stop10h 25m
Deal found 7/9$831
Thu 8/1021:35 -
1 stop21h 40m
Thu 15/1015:00 -
1 stop14h 20m
Deal found 8/9$835
Sat 24/1021:35 -
2 stops22h 25m
Sat 31/1018:30 -
2 stops20h 20m
Deal found 8/9$851
Sat 28/1120:05 -
1 stop24h 05m
Sun 13/1216:55 -
1 stop21h 55m
Deal found 5/9$857
Fri 11/913:00 -
1 stop25h 55m
Sun 27/916:25 -
1 stop24h 10m
Deal found 7/9$904
Wed 21/1014:00 -
2 stops21h 25m
Wed 28/1009:55 -
1 stop17h 30m
Deal found 6/9$916
Fri 16/1009:50 -
1 stop13h 25m
Sun 25/1007:10 -
1 stop20h 00m
Deal found 8/9$930
Fri 16/1009:50 -
1 stop13h 25m
Mon 26/1016:40 -
1 stop23h 20m
Deal found 8/9$932

Find flight deals from Sydney to Sumatra

Round-trip from

$658

One-way from

$352

Popular in

December

Cheapest in

July

Average price

$868
Scoot
  • Scoot
  • 17/10-27/10
  • 3 total stops
  • 46h 40m total
  • Sydney to Sumatra
Search Deals
Scoot
  • Scoot
  • 12/10-31/12
  • 1 total stop
  • 21h 40m total
  • Sydney to Sumatra
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($282 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($58 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sydney to Sumatra that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyMedan

SYD Sydney Kingsford Smith - KNO Medan Kuala Namu Intl

SYDKNO

Sydney Kingsford Smith

Mon 12/10

21:35-15:15

1 stop21h 40m

Medan Kuala Namu Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$352

SydneyPadang

SYD Sydney Kingsford Smith - PDG Padang Tabing

SYDPDG

Sydney Kingsford Smith

Sun 15/11

20:05-12:05

1 stop20h 00m

Padang Tabing

Wed 31/12

00:00-03:00

Nonstop0h 00m

$371

SydneyMedan

SYD Sydney Kingsford Smith - KNO Medan Kuala Namu Intl

SYDKNO

Sydney Kingsford Smith

Mon 12/10

21:35-12:10

2 stops18h 35m

Medan Kuala Namu Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$424
Fastest return journey

SydneyMedan

SYD Sydney Kingsford Smith - KNO Medan Kuala Namu Intl

SYDKNO

Sydney Kingsford Smith

Mon 12/10

19:00-08:00

1 stop17h 00m

Medan Kuala Namu Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$458

SydneyMedan

SYD Sydney Kingsford Smith - KNO Medan Kuala Namu Intl

SYDKNO

Sydney Kingsford Smith

Mon 19/10

21:35-16:35

3 stops23h 00m

Medan Kuala Namu Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$473

SydneyPadang

SYD Sydney Kingsford Smith - PDG Padang Tabing

SYDPDG

Sydney Kingsford Smith

Sat 17/10

14:00-11:30

2 stops25h 30m

Padang Tabing

Tue 27/10

17:40-18:50

1 stop21h 10m

$658

SydneyBandar Lampung

SYD Sydney Kingsford Smith - TKG Bandar Lampung Radin Inten II

SYDTKG

Sydney Kingsford Smith

Sat 24/10

21:35-16:00

2 stops22h 25m

Bandar Lampung Radin Inten II

Sat 31/10

18:30-18:50

2 stops20h 20m

$851

SydneyMedan

SYD Sydney Kingsford Smith - KNO Medan Kuala Namu Intl

SYDKNO

Sydney Kingsford Smith

Sat 28/11

20:05-16:10

1 stop24h 05m

Medan Kuala Namu Intl

Sun 13/12

16:55-18:50

1 stop21h 55m

$857

SydneyBandar Lampung

SYD Sydney Kingsford Smith - TKG Bandar Lampung Radin Inten II

SYDTKG

Sydney Kingsford Smith

Wed 21/10

14:00-07:25

2 stops21h 25m

Bandar Lampung Radin Inten II

Wed 28/10

09:55-07:25

1 stop17h 30m

$916

SydneyMedan

SYD Sydney Kingsford Smith - KNO Medan Kuala Namu Intl

SYDKNO

Sydney Kingsford Smith

Wed 7/10

21:35-17:25

2 stops23h 50m

Medan Kuala Namu Intl

Wed 14/10

06:00-08:20

3 stops22h 20m

$950

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Sumatra

Have a flexible travel schedule? Discover the best time to fly to Sumatra from Sydney with our price prediction graph.
Estimated return price

Cheapflights Insights

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

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

Currently, July is the cheapest month in which you can book a flight from Sydney to Sumatra (average of $490). Flying from Sydney to Sumatra in December is currently the most expensive (average of $1,336). 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.

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

The best time to book flights from Sydney to Sumatra is 59 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.

Reviews of airlines servicing Sumatra

See what other customers who have flown with Singapore Airlines,Garuda Indonesia, andMalaysia Airlines from Sydney to Sumatra have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,599 reviews
Check prices

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Walter,Aug 2026

DPS - SIN

My experience with Cathay Pacific started badly and only became more frustrating as the trip continued. It began when my original flight, which I had booked in Business Class, was canceled. Because of the cancellation, I was involuntarily downgraded. I understood that disruptions happen and was willing to accept the downgrade, but the way Cathay Pacific handled the situation afterward was extremely disappointing. The biggest issue was the lack of communication between airports. When I arrived at the next airport, the staff apparently had no record or confirmation that Cathay Pacific had downgraded me. As a result, I was forced to wait approximately an hour and a half while they tried to verify what had happened and determine how to handle my reservation. This happened at around 2:00 a.m., after an exhausting travel day that had already stretched to roughly 22 hours because of delays. At that point, I was completely exhausted and simply wanted to get to my destination and rest. Having to spend another 90 minutes resolving an issue that should have already been documented and communicated internally made an already difficult travel experience considerably worse. What was even more disappointing was the refund process. Because I had paid for Business Class but was involuntarily downgraded, I expected the fare difference to be refunded automatically. Instead, I discovered that I had to contact Cathay Pacific myself to request reimbursement. When I called, I was initially told that my situation did not qualify for a refund and that I would only be offered a travel voucher. I found that response unacceptable. I had paid for Business Class transportation that Cathay Pacific ultimately did not provide. A voucher requiring me to spend money with the airline again is not the same as refunding money for a service that was never delivered. After several heated minutes of discussion, Cathay Pacific finally agreed to refund both tickets. The cancellation itself was understandable. Even the involuntary downgrade was something I was prepared to accept given the circumstances. What made this experience unacceptable was the poor communication between airports, the lengthy middle-of-the-night delay caused by Cathay Pacific’s internal handling of the downgrade, and then having to argue simply to receive a refund for the Business Class service I had paid for but did not receive. For an airline that markets itself as a premium international carrier, I expected significantly better communication, customer service, and handling of an involuntary downgrade. Unfortunately, after this experience, Cathay Pacific has lost my confidence as a customer. This will be the last time I choose to fly with them.
Singapore Airlines
8.2
Very Good
1,599 reviews
Singapore Airlines
8.2
Very Good
1,599 reviews
Check prices

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Walter,Aug 2026

DPS - SIN

My experience with Cathay Pacific started badly and only became more frustrating as the trip continued. It began when my original flight, which I had booked in Business Class, was canceled. Because of the cancellation, I was involuntarily downgraded. I understood that disruptions happen and was willing to accept the downgrade, but the way Cathay Pacific handled the situation afterward was extremely disappointing. The biggest issue was the lack of communication between airports. When I arrived at the next airport, the staff apparently had no record or confirmation that Cathay Pacific had downgraded me. As a result, I was forced to wait approximately an hour and a half while they tried to verify what had happened and determine how to handle my reservation. This happened at around 2:00 a.m., after an exhausting travel day that had already stretched to roughly 22 hours because of delays. At that point, I was completely exhausted and simply wanted to get to my destination and rest. Having to spend another 90 minutes resolving an issue that should have already been documented and communicated internally made an already difficult travel experience considerably worse. What was even more disappointing was the refund process. Because I had paid for Business Class but was involuntarily downgraded, I expected the fare difference to be refunded automatically. Instead, I discovered that I had to contact Cathay Pacific myself to request reimbursement. When I called, I was initially told that my situation did not qualify for a refund and that I would only be offered a travel voucher. I found that response unacceptable. I had paid for Business Class transportation that Cathay Pacific ultimately did not provide. A voucher requiring me to spend money with the airline again is not the same as refunding money for a service that was never delivered. After several heated minutes of discussion, Cathay Pacific finally agreed to refund both tickets. The cancellation itself was understandable. Even the involuntary downgrade was something I was prepared to accept given the circumstances. What made this experience unacceptable was the poor communication between airports, the lengthy middle-of-the-night delay caused by Cathay Pacific’s internal handling of the downgrade, and then having to argue simply to receive a refund for the Business Class service I had paid for but did not receive. For an airline that markets itself as a premium international carrier, I expected significantly better communication, customer service, and handling of an involuntary downgrade. Unfortunately, after this experience, Cathay Pacific has lost my confidence as a customer. This will be the last time I choose to fly with them.
Garuda Indonesia
8.1
Very Good
94 reviews
Singapore Airlines
8.2
Very Good
1,599 reviews
Check prices

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Walter,Aug 2026

DPS - SIN

My experience with Cathay Pacific started badly and only became more frustrating as the trip continued. It began when my original flight, which I had booked in Business Class, was canceled. Because of the cancellation, I was involuntarily downgraded. I understood that disruptions happen and was willing to accept the downgrade, but the way Cathay Pacific handled the situation afterward was extremely disappointing. The biggest issue was the lack of communication between airports. When I arrived at the next airport, the staff apparently had no record or confirmation that Cathay Pacific had downgraded me. As a result, I was forced to wait approximately an hour and a half while they tried to verify what had happened and determine how to handle my reservation. This happened at around 2:00 a.m., after an exhausting travel day that had already stretched to roughly 22 hours because of delays. At that point, I was completely exhausted and simply wanted to get to my destination and rest. Having to spend another 90 minutes resolving an issue that should have already been documented and communicated internally made an already difficult travel experience considerably worse. What was even more disappointing was the refund process. Because I had paid for Business Class but was involuntarily downgraded, I expected the fare difference to be refunded automatically. Instead, I discovered that I had to contact Cathay Pacific myself to request reimbursement. When I called, I was initially told that my situation did not qualify for a refund and that I would only be offered a travel voucher. I found that response unacceptable. I had paid for Business Class transportation that Cathay Pacific ultimately did not provide. A voucher requiring me to spend money with the airline again is not the same as refunding money for a service that was never delivered. After several heated minutes of discussion, Cathay Pacific finally agreed to refund both tickets. The cancellation itself was understandable. Even the involuntary downgrade was something I was prepared to accept given the circumstances. What made this experience unacceptable was the poor communication between airports, the lengthy middle-of-the-night delay caused by Cathay Pacific’s internal handling of the downgrade, and then having to argue simply to receive a refund for the Business Class service I had paid for but did not receive. For an airline that markets itself as a premium international carrier, I expected significantly better communication, customer service, and handling of an involuntary downgrade. Unfortunately, after this experience, Cathay Pacific has lost my confidence as a customer. This will be the last time I choose to fly with them.
Malaysia Airlines
7.3
Good
318 reviews
Singapore Airlines
8.2
Very Good
1,599 reviews
Check prices

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Walter,Aug 2026

DPS - SIN

My experience with Cathay Pacific started badly and only became more frustrating as the trip continued. It began when my original flight, which I had booked in Business Class, was canceled. Because of the cancellation, I was involuntarily downgraded. I understood that disruptions happen and was willing to accept the downgrade, but the way Cathay Pacific handled the situation afterward was extremely disappointing. The biggest issue was the lack of communication between airports. When I arrived at the next airport, the staff apparently had no record or confirmation that Cathay Pacific had downgraded me. As a result, I was forced to wait approximately an hour and a half while they tried to verify what had happened and determine how to handle my reservation. This happened at around 2:00 a.m., after an exhausting travel day that had already stretched to roughly 22 hours because of delays. At that point, I was completely exhausted and simply wanted to get to my destination and rest. Having to spend another 90 minutes resolving an issue that should have already been documented and communicated internally made an already difficult travel experience considerably worse. What was even more disappointing was the refund process. Because I had paid for Business Class but was involuntarily downgraded, I expected the fare difference to be refunded automatically. Instead, I discovered that I had to contact Cathay Pacific myself to request reimbursement. When I called, I was initially told that my situation did not qualify for a refund and that I would only be offered a travel voucher. I found that response unacceptable. I had paid for Business Class transportation that Cathay Pacific ultimately did not provide. A voucher requiring me to spend money with the airline again is not the same as refunding money for a service that was never delivered. After several heated minutes of discussion, Cathay Pacific finally agreed to refund both tickets. The cancellation itself was understandable. Even the involuntary downgrade was something I was prepared to accept given the circumstances. What made this experience unacceptable was the poor communication between airports, the lengthy middle-of-the-night delay caused by Cathay Pacific’s internal handling of the downgrade, and then having to argue simply to receive a refund for the Business Class service I had paid for but did not receive. For an airline that markets itself as a premium international carrier, I expected significantly better communication, customer service, and handling of an involuntary downgrade. Unfortunately, after this experience, Cathay Pacific has lost my confidence as a customer. This will be the last time I choose to fly with them.
Scoot
6.7
Okay
332 reviews
Singapore Airlines
8.2
Very Good
1,599 reviews
Check prices

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Walter,Aug 2026

DPS - SIN

My experience with Cathay Pacific started badly and only became more frustrating as the trip continued. It began when my original flight, which I had booked in Business Class, was canceled. Because of the cancellation, I was involuntarily downgraded. I understood that disruptions happen and was willing to accept the downgrade, but the way Cathay Pacific handled the situation afterward was extremely disappointing. The biggest issue was the lack of communication between airports. When I arrived at the next airport, the staff apparently had no record or confirmation that Cathay Pacific had downgraded me. As a result, I was forced to wait approximately an hour and a half while they tried to verify what had happened and determine how to handle my reservation. This happened at around 2:00 a.m., after an exhausting travel day that had already stretched to roughly 22 hours because of delays. At that point, I was completely exhausted and simply wanted to get to my destination and rest. Having to spend another 90 minutes resolving an issue that should have already been documented and communicated internally made an already difficult travel experience considerably worse. What was even more disappointing was the refund process. Because I had paid for Business Class but was involuntarily downgraded, I expected the fare difference to be refunded automatically. Instead, I discovered that I had to contact Cathay Pacific myself to request reimbursement. When I called, I was initially told that my situation did not qualify for a refund and that I would only be offered a travel voucher. I found that response unacceptable. I had paid for Business Class transportation that Cathay Pacific ultimately did not provide. A voucher requiring me to spend money with the airline again is not the same as refunding money for a service that was never delivered. After several heated minutes of discussion, Cathay Pacific finally agreed to refund both tickets. The cancellation itself was understandable. Even the involuntary downgrade was something I was prepared to accept given the circumstances. What made this experience unacceptable was the poor communication between airports, the lengthy middle-of-the-night delay caused by Cathay Pacific’s internal handling of the downgrade, and then having to argue simply to receive a refund for the Business Class service I had paid for but did not receive. For an airline that markets itself as a premium international carrier, I expected significantly better communication, customer service, and handling of an involuntary downgrade. Unfortunately, after this experience, Cathay Pacific has lost my confidence as a customer. This will be the last time I choose to fly with them.

Related info for your journey

  • What airport do you fly from for flights from Sydney to Sumatra?

    If you book a flight to Sumatra from Sydney, you will be flying from Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney.

  • How long is the flight from Sydney to Sumatra?

    A quick flight from Sydney to Sumatra can take about 24h 05m. Scoot provides one of the quickest options available for as low as $857. There are 6880 km between Sydney and Sumatra.

  • What are the cheapest airlines to fly from Sydney to Sumatra one-way?

    $359 is the cheapest one-way deal found within the past few days, from Malaysia Airlines. You may also be able to find cheap deals on Garuda Indonesia and Singapore Airlines, with prices starting from $531 and $560, respectively.

  • What are the most popular routes from Sydney to Sumatra?

    The most popular flight routes from Sydney to Sumatra are Sydney Kingsford Smith - Medan Kuala Namu Intl, Sydney Kingsford Smith - Padang Tabing and Sydney Kingsford Smith - Bandar Lampung Radin Inten II.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to Sumatra 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 Sydney to Sumatra?

    Currently, July is the cheapest month in which you can book a flight from Sydney to Sumatra (average of $490). Flying from Sydney to Sumatra in December is currently the most expensive (average of $1,336). 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

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Sydney to Sumatra

AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$406Average$610FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Malaysia AirlinesCheapest$462Average$602FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest$670Average$910FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Garuda IndonesiaCheapest$898Average$1,251FlexibilityNo cancel feeOn-time71%
Search Garuda Indonesia flights

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Certainly. Search results for flights to Sumatra from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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