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

Qantas Airways, United Airlines, and Delta 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.

$893 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

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:51 - 07:05

GEG

SYD

25h 14m

2 stops

12:00 - 20:43

SYD

GEG

25h 43m

1 stop

$1,511American Airlines

Mon, 1 Jun - Sun, 14 Jun

05:41 - 06:55

GEG

SYD

32h 14m

1 stop

12:00 - 12:01

SYD

GEG

41h 01m

1 stop

$1,512American Airlines

Mon, 1 Jun - Sun, 14 Jun

07:00 - 07:05

GEG

SYD

31h 05m

1 stop

10:10 - 13:17

SYD

GEG

21h 07m

1 stop

$1,554Alaska Airlines

Tue, 8 Sep - Thu, 8 Oct

14:51 - 08:00

GEG

SYD

23h 09m

1 stop

19:15 - 20:55

SYD

GEG

44h 40m

2 stops

$1,572Qantas Airways

Thu, 29 Oct - Mon, 2 Nov

14:51 - 08:00

GEG

SYD

23h 09m

1 stop

19:15 - 20:55

SYD

GEG

44h 40m

2 stops

$1,574Qantas Airways

Thu, 29 Oct - Mon, 2 Nov

18:58 - 06:55

BOI

SYD

19h 57m

1 stop

10:20 - 16:44

SYD

BOI

22h 24m

1 stop

$1,603United Airlines

Wed, 20 May - Wed, 17 Jun

14:33 - 07:00

BOI

SYD

24h 27m

2 stops

10:20 - 21:35

SYD

BOI

27h 15m

2 stops

$1,610United Airlines

Wed, 20 May - Wed, 17 Jun

16:20 - 06:50

GEG

SYD

21h 30m

1 stop

09:15 - 15:48

SYD

GEG

23h 33m

1 stop

$1,652Delta

Mon, 8 Jun - Mon, 15 Jun

16:20 - 06:50

GEG

SYD

21h 30m

1 stop

09:15 - 23:59

SYD

GEG

31h 44m

2 stops

$1,659Delta

Mon, 8 Jun - Mon, 15 Jun

19:07 - 07:05

BOI

SYD

19h 58m

1 stop

09:10 - 12:33

SYD

BOI

19h 23m

1 stop

$1,790Alaska Airlines

Thu, 30 Jul - Mon, 31 Aug

Qantas Airways flights from Idaho to Sydney

Our best Qantas Airways deals on Idaho to Sydney flight tickets

Qantas Airways

29 Oct

GEG14:51Spokane

23h 09m

1 stop

SYD08:00Sydney Kingsford Smith

2 Nov

SYD19:15Sydney Kingsford Smith

44h 40m

2 stops

GEG20:55Spokane

$1,572

Qantas Airways

29 Oct

GEG14:51Spokane

23h 09m

1 stop

SYD08:00Sydney Kingsford Smith

2 Nov

SYD19:15Sydney Kingsford Smith

44h 40m

2 stops

GEG20:55Spokane

$1,574

Qantas Airways

12 Oct

GEG14:51Spokane

23h 14m

1 stop

SYD08:05Sydney Kingsford Smith

16 Oct

SYD13:00Sydney Kingsford Smith

25h 47m

1 stop

GEG20:47Spokane

$1,690

Delta flights from Idaho to Sydney

Our best Delta deals on Idaho to Sydney flight tickets

Delta

8 June

GEG16:20Spokane

21h 30m

1 stop

SYD06:50Sydney Kingsford Smith

15 June

SYD09:15Sydney Kingsford Smith

23h 33m

1 stop

GEG15:48Spokane

$1,652

Delta

8 June

GEG16:20Spokane

21h 30m

1 stop

SYD06:50Sydney Kingsford Smith

15 June

SYD09:15Sydney Kingsford Smith

31h 44m

2 stops

GEG23:59Spokane

$1,659

Delta

22 June

GEG13:30Spokane

24h 20m

2 stops

SYD06:50Sydney Kingsford Smith

29 June

SYD09:15Sydney Kingsford Smith

31h 44m

2 stops

GEG23:59Spokane

$1,708

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 1/6

12:51-07:05

2 stops25h 14m

Sydney Kingsford Smith

Sun 14/6

12:00-20:43

1 stop25h 43m

$1,511

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 1/6

05:41-06:55

1 stop32h 14m

Sydney Kingsford Smith

Sun 14/6

12:00-12:01

1 stop41h 01m

$1,512

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 8/9

07:00-07:05

1 stop31h 05m

Sydney Kingsford Smith

Thu 8/10

10:10-13:17

1 stop21h 07m

$1,554

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 29/10

14:51-08:00

1 stop23h 09m

Sydney Kingsford Smith

Mon 2/11

19:15-20:55

2 stops44h 40m

$1,572

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 29/10

14:51-08:00

1 stop23h 09m

Sydney Kingsford Smith

Mon 2/11

19:15-20:55

2 stops44h 40m

$1,574

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 20/5

18:58-06:55

1 stop19h 57m

Sydney Kingsford Smith

Wed 17/6

10:20-16:44

1 stop22h 24m

$1,603

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 20/5

14:33-07:00

2 stops24h 27m

Sydney Kingsford Smith

Wed 17/6

10:20-21:35

2 stops27h 15m

$1,610

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 8/6

16:20-06:50

1 stop21h 30m

Sydney Kingsford Smith

Mon 15/6

09:15-15:48

1 stop23h 33m

$1,652

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 8/6

16:20-06:50

1 stop21h 30m

Sydney Kingsford Smith

Mon 15/6

09:15-23:59

2 stops31h 44m

$1,659

Fastest return journey

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 30/7

19:07-07:05

1 stop19h 58m

Sydney Kingsford Smith

Mon 31/8

09:10-12:33

1 stop19h 23m

$1,790

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

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 September is also cheap. Prices for this month can be found on momondo for an average of $1,207.

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	18h 23m
Direct flights	None

The fastest flight from Idaho to Sydney takes 18h 23m

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.