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.

$930 Cheap Flights from Idaho to Sydney in 2026

1 adult

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Find the cheapest flights from Idaho to Sydney

Round-trip

One-way

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Cheap return flights

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18:14 - 07:05

GEG

SYD

19h 51m

1 stop

09:10 - 22:52

SYD

GEG

30h 42m

1 stop

$1,549Alaska Airlines

Thu, 7 May - Thu, 14 May

06:20 - 07:05

GEG

SYD

31h 45m

1 stop

17:50 - 22:18

SYD

GEG

21h 28m

1 stop

$1,563Multiple Airlines

Mon, 3 Aug - Wed, 12 Aug

17:47 - 07:05

GEG

SYD

20h 18m

1 stop

10:10 - 17:21

SYD

GEG

25h 11m

1 stop

$1,570Alaska Airlines

Tue, 8 Sep - Tue, 6 Oct

17:47 - 07:05

GEG

SYD

20h 18m

1 stop

10:10 - 22:25

SYD

GEG

30h 15m

1 stop

$1,582Alaska Airlines

Sat, 19 Sep - Sat, 17 Oct

13:41 - 07:00

GEG

SYD

24h 19m

2 stops

10:20 - 10:35

SYD

GEG

17h 15m

1 stop

$1,583United Airlines

Mon, 3 Aug - Wed, 12 Aug

12:25 - 06:55

GEG

SYD

25h 30m

1 stop

10:20 - 11:16

SYD

GEG

17h 56m

1 stop

$1,585United Airlines

Thu, 7 May - Thu, 14 May

13:20 - 07:05

GEG

SYD

24h 45m

2 stops

17:50 - 23:09

SYD

GEG

22h 19m

2 stops

$1,586American Airlines

Thu, 7 May - Thu, 14 May

13:41 - 06:55

GEG

SYD

24h 14m

2 stops

09:30 - 14:58

SYD

GEG

22h 28m

2 stops

$1,590United Airlines

Mon, 3 Aug - Wed, 12 Aug

14:14 - 07:30

BOI

SYD

25h 16m

2 stops

12:00 - 22:54

SYD

BOI

26h 54m

1 stop

$1,764American Airlines

Mon, 20 Apr - Mon, 27 Apr

16:55 - 06:50

BOI

SYD

21h 55m

1 stop

09:15 - 23:00

SYD

BOI

29h 45m

1 stop

$1,771Delta

Sun, 19 Apr - Sun, 26 Apr

Air New Zealand flights from Idaho to Sydney

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

Air New Zealand

30 July

BOI19:05Boise Air Term. Gowen Fld

19h 50m

1 stop

SYD06:55Sydney Kingsford Smith

31 Aug

SYD11:55Sydney Kingsford Smith

25h 24m

2 stops

BOI21:19Boise Air Term. Gowen Fld

$2,188

Air New Zealand

5 Apr

GEG12:35Spokane

25h 20m

1 stop

SYD06:55Sydney Kingsford Smith

11 Apr

SYD19:20Sydney Kingsford Smith

57h 23m

2 stops

GEG11:43Spokane

$4,151

Air New Zealand

5 Apr

GEG12:35Spokane

25h 20m

1 stop

SYD06:55Sydney Kingsford Smith

11 Apr

SYD19:20Sydney Kingsford Smith

57h 23m

2 stops

GEG11:43Spokane

$4,184

United Airlines flights from Idaho to Sydney

Our best United Airlines deals on Idaho to Sydney flight tickets

United Airlines

3 Aug

GEG13:41Spokane

24h 19m

2 stops

SYD07:00Sydney Kingsford Smith

12 Aug

SYD10:20Sydney Kingsford Smith

17h 15m

1 stop

GEG10:35Spokane

$1,583

United Airlines

7 May

GEG12:25Spokane

25h 30m

1 stop

SYD06:55Sydney Kingsford Smith

14 May

SYD10:20Sydney Kingsford Smith

17h 56m

1 stop

GEG11:16Spokane

$1,585

United Airlines

3 Aug

GEG13:41Spokane

24h 14m

2 stops

SYD06:55Sydney Kingsford Smith

12 Aug

SYD09:30Sydney Kingsford Smith

22h 28m

2 stops

GEG14:58Spokane

$1,590

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 7/5

18:14-07:05

1 stop19h 51m

Sydney Kingsford Smith

Thu 14/5

09:10-22:52

1 stop30h 42m

$1,549

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 3/8

06:20-07:05

1 stop31h 45m

Sydney Kingsford Smith

Wed 12/8

17:50-22:18

1 stop21h 28m

$1,563

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 8/9

17:47-07:05

1 stop20h 18m

Sydney Kingsford Smith

Tue 6/10

10:10-17:21

1 stop25h 11m

$1,570

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sat 19/9

17:47-07:05

1 stop20h 18m

Sydney Kingsford Smith

Sat 17/10

10:10-22:25

1 stop30h 15m

$1,582

Fastest return journey

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 3/8

13:41-07:00

2 stops24h 19m

Sydney Kingsford Smith

Wed 12/8

10:20-10:35

1 stop17h 15m

$1,583

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 7/5

12:25-06:55

1 stop25h 30m

Sydney Kingsford Smith

Thu 14/5

10:20-11:16

1 stop17h 56m

$1,585

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 7/5

13:20-07:05

2 stops24h 45m

Sydney Kingsford Smith

Thu 14/5

17:50-23:09

2 stops22h 19m

$1,586

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 3/8

13:41-06:55

2 stops24h 14m

Sydney Kingsford Smith

Wed 12/8

09:30-14:58

2 stops22h 28m

$1,590

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 20/4

14:14-07:30

2 stops25h 16m

Sydney Kingsford Smith

Mon 27/4

12:00-22:54

1 stop26h 54m

$1,764

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Sun 19/4

16:55-06:50

1 stop21h 55m

Sydney Kingsford Smith

Sun 26/4

09:15-23:00

1 stop29h 45m

$1,771

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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

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

Delta and Hawaiian Airlines are the most popular carriers operating from Idaho to Sydney Kingsford Smith

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 20m
Direct flights	None

The fastest flight from Idaho to Sydney takes 19h 20m

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.

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.