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 many operators does momondo search for flights from Idaho to Sydney Kingsford Smith Airport?

As of August 2025, there are 3 operators available to choose from for flights from Idaho to Sydney Kingsford Smith Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho to Sydney Kingsford Smith Airport.

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

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$805 Cheap Flights from Idaho to Sydney in 2025

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Find the cheapest flights from Idaho to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

5:15 am - 6:55 amGEG-SYD

32h 40m2 stops

9:30 am - 3:10 pmSYD-GEG

22h 40m2 stops

$805United Airlines

Find Deal

Thu, Sep 11 - Thu, Sep 25

1:38 pm - 6:55 amGEG-SYD

24h 17m2 stops

10:20 am - 11:15 pmSYD-GEG

29h 55m1 stop

$808United Airlines

Find Deal

Thu, Sep 11 - Thu, Sep 25

2:38 pm - 9:00 amGEG-SYD

23h 22m1 stop

5:45 pm - 1:58 pmSYD-GEG

39h 13m1 stop

$917Qantas Airways

Find Deal

Tue, Nov 4 - Mon, Nov 17

1:57 pm - 7:30 amBOI-SYD

25h 33m2 stops

11:20 am - 7:37 pmSYD-BOI

25h 17m2 stops

$957American Airlines

Find Deal

Thu, Oct 2 - Fri, Oct 31

2:28 pm - 7:05 amBOI-SYD

24h 37m2 stops

9:10 am - 3:54 pmSYD-BOI

22h 44m2 stops

$967

Find Deal

Tue, Sep 9 - Tue, Sep 16

2:06 pm - 9:00 amBOI-SYD

24h 54m2 stops

11:15 am - 4:51 pmSYD-BOI

23h 36m2 stops

$1,016American Airlines

Find Deal

Wed, Nov 19 - Wed, Feb 18

12:29 pm - 6:55 amGEG-SYD

25h 26m1 stop

5:45 pm - 10:25 pmSYD-GEG

21h 40m1 stop

$1,065Qantas Airways

Find Deal

Sat, Aug 30 - Sat, Sep 6

7:17 pm - 2:40 pmBOI-SYD

27h 23m2 stops

5:45 pm - 10:54 pmSYD-BOI

21h 09m1 stop

$1,150

Find Deal

Tue, Sep 9 - Tue, Sep 16

8:27 pm - 7:05 amBOI-SYD

18h 38m1 stop

11:20 am - 1:40 pmSYD-BOI

19h 20m1 stop

$1,152Alaska Airlines

Find Deal

Fri, Oct 3 - Fri, Oct 31

9:00 am - 8:05 amBOI-SYD

30h 05m2 stops

10:10 am - 1:35 pmSYD-BOI

20h 25m1 stop

$1,157Alaska Airlines

Find Deal

Thu, Oct 9 - Sat, Oct 18

United Airlines flights from Idaho to Sydney

Our best United Airlines deals on Idaho to Sydney flight tickets

United Airlines

Sep 11

GEG5:15 amSpokane

32h 40m

2 stops

SYD6:55 amSydney Kingsford Smith

Sep 25

SYD9:30 amSydney Kingsford Smith

22h 40m

2 stops

GEG3:10 pmSpokane

$805

Find similar

United Airlines

Sep 11

GEG1:38 pmSpokane

24h 17m

2 stops

SYD6:55 amSydney Kingsford Smith

Sep 25

SYD10:20 amSydney Kingsford Smith

29h 55m

1 stop

GEG11:15 pmSpokane

$808

Find similar

United Airlines

Sep 11

GEG7:23 amSpokane

30h 32m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 25

SYD10:20 amSydney Kingsford Smith

17h 19m

1 stop

GEG10:39 amSpokane

$812

Find similar

Qantas Airways flights from Idaho to Sydney

Our best Qantas Airways deals on Idaho to Sydney flight tickets

Qantas Airways

Nov 4

GEG2:38 pmSpokane

23h 22m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 17

SYD5:45 pmSydney Kingsford Smith

39h 13m

1 stop

GEG1:58 pmSpokane

$917

Find similar

Qantas Airways

Aug 30

GEG12:29 pmSpokane

25h 26m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 6

SYD5:45 pmSydney Kingsford Smith

21h 40m

1 stop

GEG10:25 pmSpokane

$1,065

Find similar

Qantas Airways

Aug 14

BOI6:51 pmBoise Air Term. Gowen Fld

20h 39m

1 stop

SYD7:30 amSydney Kingsford Smith

Aug 16

SYD5:45 pmSydney Kingsford Smith

21h 09m

1 stop

BOI10:54 pmBoise Air Term. Gowen Fld

$26,531

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 9/11

5:15 am-6:55 am

2 stops32h 40m

Sydney Kingsford Smith

Thu 9/25

9:30 am-3:10 pm

2 stops22h 40m

$805

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 9/11

1:38 pm-6:55 am

2 stops24h 17m

Sydney Kingsford Smith

Thu 9/25

10:20 am-11:15 pm

1 stop29h 55m

$808

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 11/4

2:38 pm-9:00 am

1 stop23h 22m

Sydney Kingsford Smith

Mon 11/17

5:45 pm-1:58 pm

1 stop39h 13m

$917

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 10/2

1:57 pm-7:30 am

2 stops25h 33m

Sydney Kingsford Smith

Fri 10/31

11:20 am-7:37 pm

2 stops25h 17m

$957

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 9/9

2:28 pm-7:05 am

2 stops24h 37m

Sydney Kingsford Smith

Tue 9/16

9:10 am-3:54 pm

2 stops22h 44m

$967

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 11/19

2:06 pm-9:00 am

2 stops24h 54m

Sydney Kingsford Smith

Wed 2/18

11:15 am-4:51 pm

2 stops23h 36m

$1,016

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sat 8/30

12:29 pm-6:55 am

1 stop25h 26m

Sydney Kingsford Smith

Sat 9/6

5:45 pm-10:25 pm

1 stop21h 40m

$1,065

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 9/9

7:17 pm-2:40 pm

2 stops27h 23m

Sydney Kingsford Smith

Tue 9/16

5:45 pm-10:54 pm

1 stop21h 09m

$1,150

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Fri 10/3

8:27 pm-7:05 am

1 stop18h 38m

Sydney Kingsford Smith

Fri 10/31

11:20 am-1:40 pm

1 stop19h 20m

$1,152

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 10/9

9:00 am-8:05 am

2 stops30h 05m

Sydney Kingsford Smith

Sat 10/18

10:10 am-1:35 pm

1 stop20h 25m

$1,157

Flights are sorted by cheapest round-trip flights first.

Sorted 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 month to fly to Sydney?

In general, May is the cheapest month to fly from Idaho to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,031. If you are unable to visit Sydney during the month of May, then departing from Idaho during the month September is also very affordable. Most momondo users find prices during this month for around $1,056.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Idaho to Sydney is on a Sunday when prices can be found for as low as $1,164. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $1,529.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Idaho to Sydney in the afternoon for as low as $1,311. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,539. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Idaho to Sydney flight deals and tips

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

Best Price Found	$805
Fastest flight time	18h 38m
Direct flights	None
Airports in Sydney	1 airport

The best flight deal from Idaho to Sydney found on momondo in the last 72 hours is $805

The fastest flight from Idaho to Sydney takes 18h 38m

There are no direct flights from Idaho to Sydney. Popular non-direct routes for this connection are Spokane Airport - Sydney Kingsford Smith Airport and Boise Air Term. Gowen Fld Airport - Sydney Kingsford Smith Airport.

There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

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 many operators does momondo search for flights from Idaho to Sydney Kingsford Smith Airport?
As of August 2025, there are 3 operators available to choose from for flights from Idaho to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Idaho to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to Sydney

Compare and see reviews for airlines that fly from Idaho to Sydney with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $898	Free Cancellation	Rating 7.4 8,920 reviews		Search United Airlines flights
American Airlines	PriceFrom $987	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

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Katoomba

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Randwick

Coogee

Cronulla

Penrith

Manly

Lithgow

Charlestown

Swansea

Leura

Terrigal

Why use momondo?

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

Finding the right flight to Sydney from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Sydney from Idaho which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Sydney from Idaho. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Idaho to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.