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

Qantas Airways, United Airlines, and Alaska Airlines are the most popular carriers 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.

$799 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.

13:36 - 07:30GEG Spokane-SYD Sydney Kingsford Smith

24h 54m2 stops Seattle/Tacoma Intl Los Angeles Los Angeles

09:10 - 13:23SYD Sydney Kingsford Smith-GEG Spokane

21h 13m1 stop Los Angeles Los Angeles

$1,503Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

15:37 - 06:25GEG Spokane-SYD Sydney Kingsford Smith

44h 48m2 stops Portland Los Angeles Los Angeles

11:15 - 12:35SYD Sydney Kingsford Smith-GEG Spokane

20h 20m1 stop Los Angeles Los Angeles

$1,505Multiple Airlines

Sat, 24 Oct - Tue, 17 Nov

16:21 - 07:05GEG Spokane-SYD Sydney Kingsford Smith

21h 44m1 stop Los Angeles Los Angeles

09:10 - 13:23SYD Sydney Kingsford Smith-GEG Spokane

21h 13m1 stop Los Angeles Los Angeles

$1,512Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

14:51 - 08:05GEG Spokane-SYD Sydney Kingsford Smith

23h 14m1 stop Los Angeles Los Angeles

21:25 - 15:22SYD Sydney Kingsford Smith-GEG Spokane

35h 57m1 stop San Francisco

$1,513Multiple Airlines

Sun, 18 Oct - Wed, 28 Oct

07:02 - 06:20GEG Spokane-SYD Sydney Kingsford Smith

28h 18m1 stop San Francisco

11:50 - 11:24SYD Sydney Kingsford Smith-GEG Spokane

18h 34m1 stop San Francisco

$1,542United Airlines

Wed, 2 Dec - Wed, 16 Dec

13:36 - 07:30GEG Spokane-SYD Sydney Kingsford Smith

24h 54m2 stops Phoenix Sky Harbor Intl Los Angeles Los Angeles

12:00 - 19:39SYD Sydney Kingsford Smith-GEG Spokane

24h 39m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$1,543American Airlines

Wed, 16 Sep - Wed, 23 Sep

14:45 - 08:05GEG Spokane-SYD Sydney Kingsford Smith

23h 20m2 stops Phoenix Sky Harbor Intl Los Angeles Los Angeles

11:10 - 20:43SYD Sydney Kingsford Smith-GEG Spokane

27h 33m2 stops Los Angeles Los Angeles Dallas/Fort Worth

$1,544American Airlines

Sun, 18 Oct - Wed, 28 Oct

05:00 - 09:20GEG Spokane-SYD Sydney Kingsford Smith

33h 20m2 stops Denver Intl San Francisco

11:50 - 21:09SYD Sydney Kingsford Smith-GEG Spokane

28h 19m2 stops San Francisco Denver Intl

$1,547United Airlines

Wed, 2 Dec - Wed, 16 Dec

16:20 - 06:50GEG Spokane-SYD Sydney Kingsford Smith

21h 30m2 stops Seattle/Tacoma Intl Los Angeles Los Angeles

09:15 - 16:53SYD Sydney Kingsford Smith-GEG Spokane

24h 38m2 stops Los Angeles Los Angeles Salt Lake City

$1,549Delta

Sun, 6 Sep - Sun, 20 Sep

19:20 - 07:50GEG Spokane-SYD Sydney Kingsford Smith

42h 30m2 stops Seattle/Tacoma Intl Los Angeles Los Angeles

09:40 - 14:50SYD Sydney Kingsford Smith-GEG Spokane

23h 10m2 stops Los Angeles Los Angeles Seattle/Tacoma Intl

$1,567Delta

Sat, 17 Oct - Mon, 26 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

15:16 - 07:05GEG Spokane-SYD Sydney Kingsford Smith

22h 49m2 stops Portland Los Angeles Los Angeles

09:10 - 22:38SYD Sydney Kingsford Smith-GEG Spokane

30h 28m1 stop Los Angeles Los Angeles

$1,573Multiple Airlines

Sat, 15 Aug - Sat, 22 Aug

06:20 - 07:05GEG Spokane-SYD Sydney Kingsford Smith

31h 45m1 stop Los Angeles Los Angeles

09:10 - 22:38SYD Sydney Kingsford Smith-GEG Spokane

30h 28m1 stop Los Angeles Los Angeles

$1,584Multiple Airlines

Sat, 15 Aug - Sat, 22 Aug

11:51 - 07:05GEG Spokane-SYD Sydney Kingsford Smith

26h 14m1 stop Los Angeles Los Angeles

17:50 - 22:15SYD Sydney Kingsford Smith-GEG Spokane

21h 25m1 stop Los Angeles Los Angeles

$1,699Multiple Airlines

Wed, 12 Aug - Fri, 14 Aug

15:16 - 07:30GEG Spokane-SYD Sydney Kingsford Smith

23h 14m2 stops Portland Los Angeles Los Angeles

06:25 - 22:38SYD Sydney Kingsford Smith-GEG Spokane

33h 13m2 stops Melbourne Los Angeles Los Angeles

$1,703Multiple Airlines

Sat, 15 Aug - Sat, 22 Aug

05:20 - 07:05GEG Spokane-SYD Sydney Kingsford Smith

32h 45m2 stops Phoenix Sky Harbor Intl Los Angeles Los Angeles

18:45 - 22:15SYD Sydney Kingsford Smith-GEG Spokane

44h 30m2 stops Melbourne Los Angeles Los Angeles

$1,851Multiple Airlines

Wed, 12 Aug - Fri, 14 Aug

05:57 - 07:30BOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

33h 33m2 stops Portland Los Angeles Los Angeles

17:50 - 23:48SYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

45h 58m2 stops Los Angeles Los Angeles Portland

$2,320Alaska Airlines

Fri, 14 Aug - Sun, 16 Aug

10:52 - 06:25BOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

27h 33m1 stop San Francisco

17:50 - 22:58SYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

21h 08m2 stops Los Angeles Los Angeles Phoenix Sky Harbor Intl

$2,373Multiple Airlines

Fri, 14 Aug - Sun, 16 Aug

15:16 - 07:05GEG Spokane-SYD Sydney Kingsford Smith

22h 49m2 stops Portland Los Angeles Los Angeles

11:40 - 13:23SYD Sydney Kingsford Smith-GEG Spokane

66h 43m3 stops Auckland Intl Papeete Faaa Los Angeles Los Angeles

$2,440Multiple Airlines

Sat, 15 Aug - Sat, 22 Aug

08:03 - 07:30BOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

31h 27m1 stop Los Angeles Los Angeles

17:50 - 10:12SYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

32h 22m1 stop Los Angeles Los Angeles

$2,662Multiple Airlines

Fri, 14 Aug - Sun, 16 Aug

18:51 - 15:10BOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

28h 19m3 stops Los Angeles Los Angeles Papeete Faaa Auckland Intl

21:25 - 09:37SYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

28h 12m2 stops San Francisco Seattle/Tacoma Intl

$4,629Multiple Airlines

Fri, 14 Aug - Sun, 16 Aug

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United Airlines flights from Idaho to Sydney

Our best United Airlines deals on Idaho to Sydney flight tickets

United Airlines

2 Dec

GEG07:02Spokane

28h 18m

1 stop

SYD06:20Sydney Kingsford Smith

16 Dec

SYD11:50Sydney Kingsford Smith

18h 34m

1 stop

GEG11:24Spokane

$1,542

United Airlines

2 Dec

GEG05:00Spokane

31h 00m

2 stops

SYD07:00Sydney Kingsford Smith

16 Dec

SYD11:50Sydney Kingsford Smith

18h 34m

1 stop

GEG11:24Spokane

$1,547

United Airlines

6 Sept

GEG12:33Spokane

25h 22m

1 stop

SYD06:55Sydney Kingsford Smith

20 Sept

SYD09:30Sydney Kingsford Smith

22h 36m

2 stops

GEG15:06Spokane

$1,549

Air New Zealand flights from Idaho to Sydney

Our best Air New Zealand deals on Idaho to Sydney flight tickets

Air New Zealand

13 Sept

GEG06:00Spokane

35h 40m

2 stops

SYD10:40Sydney Kingsford Smith

19 Sept

SYD19:20Sydney Kingsford Smith

44h 21m

2 stops

GEG22:41Spokane

$1,701

Air New Zealand

18 Oct

BOI08:15Boise Air Term. Gowen Fld

31h 30m

2 stops

SYD08:45Sydney Kingsford Smith

1 Nov

SYD09:55Sydney Kingsford Smith

24h 47m

2 stops

BOI17:42Boise Air Term. Gowen Fld

$1,730

Air New Zealand

21 Sept

BOI19:05Boise Air Term. Gowen Fld

23h 35m

2 stops

SYD10:40Sydney Kingsford Smith

27 Sept

SYD18:05Sydney Kingsford Smith

45h 54m

2 stops

BOI23:59Boise Air Term. Gowen Fld

$2,103

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 16/9

13:36-07:30

2 stops24h 54m

Sydney Kingsford Smith

Wed 23/9

09:10-13:23

1 stop21h 13m

$1,503

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sat 24/10

15:37-06:25

2 stops44h 48m

Sydney Kingsford Smith

Tue 17/11

11:15-12:35

1 stop20h 20m

$1,505

Fastest return journey

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 16/9

16:21-07:05

1 stop21h 44m

Sydney Kingsford Smith

Wed 23/9

09:10-13:23

1 stop21h 13m

$1,512

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sun 18/10

14:51-08:05

1 stop23h 14m

Sydney Kingsford Smith

Wed 28/10

21:25-15:22

1 stop35h 57m

$1,513

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 2/12

07:02-06:20

1 stop28h 18m

Sydney Kingsford Smith

Wed 16/12

11:50-11:24

1 stop18h 34m

$1,542

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 16/9

13:36-07:30

2 stops24h 54m

Sydney Kingsford Smith

Wed 23/9

12:00-19:39

2 stops24h 39m

$1,543

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sun 18/10

14:45-08:05

2 stops23h 20m

Sydney Kingsford Smith

Wed 28/10

11:10-20:43

2 stops27h 33m

$1,544

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 2/12

05:00-09:20

2 stops33h 20m

Sydney Kingsford Smith

Wed 16/12

11:50-21:09

2 stops28h 19m

$1,547

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sun 6/9

16:20-06:50

2 stops21h 30m

Sydney Kingsford Smith

Sun 20/9

09:15-16:53

2 stops24h 38m

$1,549

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sat 17/10

19:20-07:50

2 stops42h 30m

Sydney Kingsford Smith

Mon 26/10

09:40-14:50

2 stops23h 10m

$1,567

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 March is also cheap. Prices for this month can be found on momondo for an average of $1,522.

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 10m
Direct flights	None

The fastest flight from Idaho to Sydney takes 20h 10m

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

Randwick

Cronulla

Bondi Beach

Charlestown

Swansea

Newport

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.