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

Delta 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.

$793 Cheap Flights from Idaho to Sydney in 2025/26

1 adult

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Find the cheapest flights from Idaho to Sydney

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17:15 - 07:05

GEG

SYD

20h 50m1 stop

09:10 - 16:13

SYD

GEG

24h 03m1 stop

$1,312Multiple Airlines

Wed, 29 Apr - Tue, 12 May

06:30 - 06:50

GEG

SYD

29h 20m1 stop

13:15 - 21:20

SYD

GEG

26h 05m1 stop

$1,323Delta

Tue, 3 Mar - Tue, 10 Mar

09:20 - 08:30

GEG

SYD

28h 10m2 stops

13:15 - 21:20

SYD

GEG

26h 05m1 stop

$1,330Delta

Tue, 3 Mar - Tue, 10 Mar

06:00 - 06:55

GEG

SYD

29h 55m1 stop

11:20 - 14:58

SYD

GEG

22h 38m2 stops

$1,383American Airlines

Wed, 28 Jan - Wed, 4 Feb

05:00 - 09:05

GEG

SYD

33h 05m2 stops

14:00 - 21:22

SYD

GEG

26h 22m2 stops

$1,390United Airlines

Wed, 28 Jan - Wed, 4 Feb

06:00 - 06:55

GEG

SYD

29h 55m1 stop

11:20 - 16:19

SYD

GEG

23h 59m1 stop

$1,399Multiple Airlines

Wed, 28 Jan - Wed, 4 Feb

12:24 - 09:15

GEG

SYD

25h 51m1 stop

12:10 - 10:44

SYD

GEG

17h 34m1 stop

$1,666United Airlines

Thu, 5 Feb - Mon, 9 Feb

19:02 - 09:00

BOI

SYD

19h 58m1 stop

11:20 - 13:35

SYD

BOI

20h 15m1 stop

$1,906Alaska Airlines

Thu, 5 Feb - Mon, 9 Feb

13:27 - 14:50

BOI

SYD

31h 23m2 stops

19:15 - 22:36

SYD

BOI

45h 21m2 stops

$2,298Qantas Airways

Tue, 30 Dec - Sun, 15 Feb

13:27 - 14:50

BOI

SYD

31h 23m2 stops

19:15 - 22:36

SYD

BOI

45h 21m2 stops

$2,301Qantas Airways

Tue, 30 Dec - Sun, 15 Feb

Delta flights from Idaho to Sydney

Our best Delta deals on Idaho to Sydney flight tickets

Delta

3 Mar

GEG06:30Spokane

29h 20m

1 stop

SYD06:50Sydney Kingsford Smith

10 Mar

SYD13:15Sydney Kingsford Smith

26h 05m

1 stop

GEG21:20Spokane

$1,323

Find similar

Delta

3 Mar

GEG09:20Spokane

28h 10m

2 stops

SYD08:30Sydney Kingsford Smith

10 Mar

SYD13:15Sydney Kingsford Smith

26h 05m

1 stop

GEG21:20Spokane

$1,330

Find similar

Delta

30 Dec

BOI08:40Boise Air Term. Gowen Fld

29h 50m

2 stops

SYD08:30Sydney Kingsford Smith

15 Feb

SYD10:40Sydney Kingsford Smith

23h 35m

2 stops

BOI16:15Boise Air Term. Gowen Fld

$1,920

Find similar

Air New Zealand flights from Idaho to Sydney

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

Air New Zealand

2 Jan

GEG06:00Spokane

31h 45m

2 stops

SYD08:45Sydney Kingsford Smith

9 Jan

SYD12:10Sydney Kingsford Smith

17h 34m

1 stop

GEG10:44Spokane

$3,068

Find similar

Air New Zealand

2 Jan

GEG06:00Spokane

31h 45m

2 stops

SYD08:45Sydney Kingsford Smith

9 Jan

SYD17:05Sydney Kingsford Smith

44h 56m

2 stops

GEG19:01Spokane

$3,438

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 29/4

17:15-07:05

1 stop20h 50m

Sydney Kingsford Smith

Tue 12/5

09:10-16:13

1 stop24h 03m

$1,312

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

06:30-06:50

1 stop29h 20m

Sydney Kingsford Smith

Tue 10/3

13:15-21:20

1 stop26h 05m

$1,323

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

09:20-08:30

2 stops28h 10m

Sydney Kingsford Smith

Tue 10/3

13:15-21:20

1 stop26h 05m

$1,330

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 28/1

06:00-06:55

1 stop29h 55m

Sydney Kingsford Smith

Wed 4/2

11:20-14:58

2 stops22h 38m

$1,383

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 28/1

05:00-09:05

2 stops33h 05m

Sydney Kingsford Smith

Wed 4/2

14:00-21:22

2 stops26h 22m

$1,390

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 28/1

06:00-06:55

1 stop29h 55m

Sydney Kingsford Smith

Wed 4/2

11:20-16:19

1 stop23h 59m

$1,399

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 5/2

12:24-09:15

1 stop25h 51m

Sydney Kingsford Smith

Mon 9/2

12:10-10:44

1 stop17h 34m

$1,666

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 5/2

19:02-09:00

1 stop19h 58m

Sydney Kingsford Smith

Mon 9/2

11:20-13:35

1 stop20h 15m

$1,906

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 30/12

13:27-14:50

2 stops31h 23m

Sydney Kingsford Smith

Sun 15/2

19:15-22:36

2 stops45h 21m

$2,298

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 30/12

13:27-14:50

2 stops31h 23m

Sydney Kingsford Smith

Sun 15/2

19:15-22:36

2 stops45h 21m

$2,301

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 September is, on average, the cheapest month to fly to Sydney from Idaho, with most prices found around $1,449. If you aren’t able to travel to Sydney during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,488.

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	19h 45m
Direct flights	None

The fastest flight from Idaho to Sydney takes 19h 45m

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

Search flight deals

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.

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Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Leura

Manly

Bondi Beach

Coogee

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.