What is the cheapest airline that flies from Idaho to Sydney Kingsford Smith?

Qantas Airways is the most popular carrier operating from Idaho to Sydney Kingsford Smith

When did momondo last update prices for flights from Idaho to Sydney Kingsford Smith Airport?

Prices for flights from Idaho to Sydney Kingsford Smith Airport refresh daily.

How old do you have to be to fly from Idaho to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$730 Cheap Flights from Idaho to Sydney in 2026

Find the cheapest flights from Idaho to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

17:05 - 09:00

GEG

SYD

20h 55m

1 stop

11:15 - 17:14

SYD

GEG

24h 59m

3 stops

$1,560Multiple Airlines

Sun, 1 Nov - Sat, 21 Nov

12:57 - 06:25

GEG

SYD

22h 28m

2 stops

11:15 - 17:14

SYD

GEG

24h 59m

3 stops

$1,562Multiple Airlines

Sun, 1 Nov - Sat, 21 Nov

17:47 - 09:00

GEG

SYD

20h 13m

1 stop

21:25 - 16:08

SYD

GEG

37h 43m

1 stop

$1,567Multiple Airlines

Wed, 2 Dec - Wed, 16 Dec

17:47 - 09:00

GEG

SYD

20h 13m

1 stop

21:25 - 16:08

SYD

GEG

37h 43m

1 stop

$1,569Multiple Airlines

Wed, 2 Dec - Wed, 16 Dec

17:05 - 09:00

GEG

SYD

20h 55m

1 stop

11:15 - 22:25

SYD

GEG

30h 10m

1 stop

$1,582Multiple Airlines

Sun, 1 Nov - Sat, 21 Nov

16:47 - 06:25

GEG

SYD

18h 38m

1 stop

14:05 - 20:57

SYD

GEG

25h 52m

1 stop

$1,589Qantas Airways

Wed, 2 Dec - Wed, 16 Dec

07:00 - 09:35

GEG

SYD

31h 35m

2 stops

11:20 - 21:01

SYD

GEG

28h 41m

2 stops

$1,619Air Canada

Sun, 1 Nov - Sat, 21 Nov

13:55 - 07:30

BOI

SYD

25h 35m

2 stops

09:10 - 16:49

SYD

BOI

23h 39m

2 stops

$1,694American Airlines

Wed, 5 Aug - Wed, 12 Aug

13:57 - 07:30

BOI

SYD

25h 33m

2 stops

12:00 - 22:11

SYD

BOI

26h 11m

1 stop

$1,767American Airlines

Thu, 30 Jul - Mon, 31 Aug

18:57 - 08:05

BOI

SYD

20h 08m

1 stop

11:15 - 12:28

SYD

BOI

18h 13m

1 stop

$1,787Qantas Airways

Tue, 20 Oct - Tue, 27 Oct

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American Airlines flights from Idaho to Sydney

Our best American Airlines deals on Idaho to Sydney flight tickets

American Airlines

5 Aug

BOI13:55Boise Air Term. Gowen Fld

25h 35m

2 stops

SYD07:30Sydney Kingsford Smith

12 Aug

SYD09:10Sydney Kingsford Smith

23h 39m

2 stops

BOI16:49Boise Air Term. Gowen Fld

$1,694

American Airlines

30 July

BOI13:57Boise Air Term. Gowen Fld

25h 33m

2 stops

SYD07:30Sydney Kingsford Smith

31 Aug

SYD12:00Sydney Kingsford Smith

26h 11m

1 stop

BOI22:11Boise Air Term. Gowen Fld

$1,767

Qantas Airways flights from Idaho to Sydney

Our best Qantas Airways deals on Idaho to Sydney flight tickets

Qantas Airways

2 Dec

GEG16:47Spokane

18h 38m

1 stop

SYD06:25Sydney Kingsford Smith

16 Dec

SYD14:05Sydney Kingsford Smith

25h 52m

1 stop

GEG20:57Spokane

$1,589

Qantas Airways

2 Dec

GEG16:47Spokane

18h 38m

1 stop

SYD06:25Sydney Kingsford Smith

16 Dec

SYD06:00Sydney Kingsford Smith

33h 57m

2 stops

GEG20:57Spokane

$1,676

Qantas Airways

2 Dec

GEG16:47Spokane

18h 38m

1 stop

SYD06:25Sydney Kingsford Smith

16 Dec

SYD06:00Sydney Kingsford Smith

33h 57m

2 stops

GEG20:57Spokane

$1,677

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 1/11

17:05-09:00

1 stop20h 55m

Sydney Kingsford Smith

Sat 21/11

11:15-17:14

3 stops24h 59m

$1,560

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 1/11

12:57-06:25

2 stops22h 28m

Sydney Kingsford Smith

Sat 21/11

11:15-17:14

3 stops24h 59m

$1,562

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 2/12

17:47-09:00

1 stop20h 13m

Sydney Kingsford Smith

Wed 16/12

21:25-16:08

1 stop37h 43m

$1,567

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 2/12

17:47-09:00

1 stop20h 13m

Sydney Kingsford Smith

Wed 16/12

21:25-16:08

1 stop37h 43m

$1,569

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 1/11

17:05-09:00

1 stop20h 55m

Sydney Kingsford Smith

Sat 21/11

11:15-22:25

1 stop30h 10m

$1,582

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 2/12

16:47-06:25

1 stop18h 38m

Sydney Kingsford Smith

Wed 16/12

14:05-20:57

1 stop25h 52m

$1,589

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 1/11

07:00-09:35

2 stops31h 35m

Sydney Kingsford Smith

Sat 21/11

11:20-21:01

2 stops28h 41m

$1,619

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 5/8

13:55-07:30

2 stops25h 35m

Sydney Kingsford Smith

Wed 12/8

09:10-16:49

2 stops23h 39m

$1,694

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 30/7

13:57-07:30

2 stops25h 33m

Sydney Kingsford Smith

Mon 31/8

12:00-22:11

1 stop26h 11m

$1,767

Fastest return journey

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 20/10

18:57-08:05

1 stop20h 08m

Sydney Kingsford Smith

Tue 27/10

11:15-12:28

1 stop18h 13m

$1,787

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Sydney?

The month of January is, on average, the cheapest month to fly to Sydney from Idaho, with most prices found around $0. If you aren’t able to travel to Sydney during the month of January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $1,406.

Cheap Idaho to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Sydney

Fastest flight time	20h 13m
Direct flights	None

The fastest flight from Idaho to Sydney takes 20h 13m

There are no direct flights from Idaho to Sydney. There are no popular flight routes from Idaho to Sydney.

Search flight deals

Frequently asked questions about flying from Idaho to Sydney

When did momondo last update prices for flights from Idaho to Sydney Kingsford Smith Airport?
Prices for flights from Idaho to Sydney Kingsford Smith Airport refresh daily.
How old do you have to be to fly from Idaho to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Sydney?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Sydney. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Idaho to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Idaho to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Sydney.

I’m not ready to book a flight from Idaho to Sydney right now. Can momondo alert me if prices change?

Price alerts on flights to Sydney from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.