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Cheap flights from Idaho to Sydney from $565

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Sydney departing on 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:37 pm - 8:05 amGEG  Spokane-SYD Sydney Kingsford Smith
22h 28m2 stops Portland Los Angeles
Multiple Airlines Logo
9:25 pm - 3:22 pmSYD  Sydney Kingsford Smith-GEG Spokane
35h 57m1 stop San Francisco
$1,063Multiple Airlines
Sun, Oct 18 - Wed, Oct 28
Multiple Airlines Logo
1:36 pm - 7:30 amGEG  Spokane-SYD Sydney Kingsford Smith
24h 54m2 stops Seattle/Tacoma Intl Los Angeles
Multiple Airlines Logo
9:10 am - 1:23 pmSYD  Sydney Kingsford Smith-GEG Spokane
21h 13m1 stop Los Angeles
$1,063Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
3:37 pm - 6:25 amGEG  Spokane-SYD Sydney Kingsford Smith
44h 48m2 stops Portland Los Angeles
Multiple Airlines Logo
11:15 am - 12:35 pmSYD  Sydney Kingsford Smith-GEG Spokane
20h 20m1 stop Los Angeles
$1,064Multiple Airlines
Sat, Oct 24 - Tue, Nov 17
Multiple Airlines Logo
4:21 pm - 7:05 amGEG  Spokane-SYD Sydney Kingsford Smith
21h 44m1 stop Los Angeles
Multiple Airlines Logo
9:10 am - 1:23 pmSYD  Sydney Kingsford Smith-GEG Spokane
21h 13m1 stop Los Angeles
$1,069Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
2:51 pm - 8:05 amGEG  Spokane-SYD Sydney Kingsford Smith
23h 14m1 stop Los Angeles
Multiple Airlines Logo
9:25 pm - 3:22 pmSYD  Sydney Kingsford Smith-GEG Spokane
35h 57m1 stop San Francisco
$1,070Multiple Airlines
Sun, Oct 18 - Wed, Oct 28
United Airlines Logo
7:02 am - 6:20 amGEG  Spokane-SYD Sydney Kingsford Smith
28h 18m1 stop San Francisco
United Airlines Logo
11:50 am - 11:24 amSYD  Sydney Kingsford Smith-GEG Spokane
18h 34m1 stop San Francisco
$1,090United Airlines
Wed, Dec 2 - Wed, Dec 16
United Airlines Logo
7:02 am - 6:20 amGEG  Spokane-SYD Sydney Kingsford Smith
28h 18m1 stop San Francisco
United Airlines Logo
11:50 am - 11:24 amSYD  Sydney Kingsford Smith-GEG Spokane
18h 34m1 stop San Francisco
$1,090United Airlines
Wed, Dec 2 - Tue, Dec 15
Delta Logo
4:24 pm - 7:30 amGEG  Spokane-SYD Sydney Kingsford Smith
21h 06m1 stop Los Angeles
Delta Logo
10:40 am - 3:48 pmSYD  Sydney Kingsford Smith-GEG Spokane
24h 08m1 stop Los Angeles
$1,090Delta
Mon, Oct 26 - Wed, Nov 18
Delta Logo
4:24 pm - 7:30 amGEG  Spokane-SYD Sydney Kingsford Smith
21h 06m1 stop Los Angeles
Delta Logo
10:40 am - 3:48 pmSYD  Sydney Kingsford Smith-GEG Spokane
24h 08m1 stop Los Angeles
$1,090Delta
Mon, Oct 26 - Sun, Nov 15
Delta Logo
4:24 pm - 7:50 amGEG  Spokane-SYD Sydney Kingsford Smith
21h 26m1 stop Los Angeles
Delta Logo
9:40 am - 3:44 pmSYD  Sydney Kingsford Smith-GEG Spokane
24h 04m1 stop Los Angeles
$1,090Delta
Tue, Oct 20 - Tue, Oct 27

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Air New Zealand flights from Idaho to Sydney

Our best Air New Zealand deals on Idaho to Sydney flight tickets
Air New Zealand
Oct 18
BOI8:15 amBoise Air Term. Gowen Fld
31h 30m
2 stops
SYD8:45 amSydney Kingsford Smith
Nov 1
SYD9:55 amSydney Kingsford Smith
24h 47m
2 stops
BOI5:42 pmBoise Air Term. Gowen Fld
$1,223
Air New Zealand
Aug 25
GEG12:33 pmSpokane
49h 47m
2 stops
SYD7:20 amSydney Kingsford Smith
Sep 8
SYD9:20 amSydney Kingsford Smith
26h 56m
2 stops
GEG7:16 pmSpokane
$1,268
Air New Zealand
Sep 21
BOI7:05 pmBoise Air Term. Gowen Fld
23h 35m
2 stops
SYD10:40 amSydney Kingsford Smith
Sep 27
SYD6:05 pmSydney Kingsford Smith
45h 54m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$1,487

United Airlines flights from Idaho to Sydney

Our best United Airlines deals on Idaho to Sydney flight tickets
United Airlines
Dec 2
GEG7:02 amSpokane
28h 18m
1 stop
SYD6:20 amSydney Kingsford Smith
Dec 16
SYD11:50 amSydney Kingsford Smith
18h 34m
1 stop
GEG11:24 amSpokane
$1,090
United Airlines
Dec 2
GEG5:00 amSpokane
31h 00m
2 stops
SYD7:00 amSydney Kingsford Smith
Dec 16
SYD11:50 amSydney Kingsford Smith
18h 34m
1 stop
GEG11:24 amSpokane
$1,094
United Airlines
Sep 6
GEG12:33 pmSpokane
25h 22m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 20
SYD9:30 amSydney Kingsford Smith
22h 36m
2 stops
GEG3:06 pmSpokane
$1,095

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Idaho to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sun 10/18

3:37 pm-8:05 am

2 stops22h 28m

Sydney Kingsford Smith

Wed 10/28

9:25 pm-3:22 pm

1 stop35h 57m

$1,063

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 9/16

1:36 pm-7:30 am

2 stops24h 54m

Sydney Kingsford Smith

Wed 9/23

9:10 am-1:23 pm

1 stop21h 13m

$1,063

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sat 10/24

3:37 pm-6:25 am

2 stops44h 48m

Sydney Kingsford Smith

Tue 11/17

11:15 am-12:35 pm

1 stop20h 20m

$1,064
Quickest round-trip

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 9/16

4:21 pm-7:05 am

1 stop21h 44m

Sydney Kingsford Smith

Wed 9/23

9:10 am-1:23 pm

1 stop21h 13m

$1,069

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sun 10/18

2:51 pm-8:05 am

1 stop23h 14m

Sydney Kingsford Smith

Wed 10/28

9:25 pm-3:22 pm

1 stop35h 57m

$1,070

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 12/2

7:02 am-6:20 am

1 stop28h 18m

Sydney Kingsford Smith

Wed 12/16

11:50 am-11:24 am

1 stop18h 34m

$1,090

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 12/2

7:02 am-6:20 am

1 stop28h 18m

Sydney Kingsford Smith

Tue 12/15

11:50 am-11:24 am

1 stop18h 34m

$1,090

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Mon 10/26

4:24 pm-7:30 am

1 stop21h 06m

Sydney Kingsford Smith

Wed 11/18

10:40 am-3:48 pm

1 stop24h 08m

$1,090

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Mon 10/26

4:24 pm-7:30 am

1 stop21h 06m

Sydney Kingsford Smith

Sun 11/15

10:40 am-3:48 pm

1 stop24h 08m

$1,090

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Tue 10/20

4:24 pm-7:50 am

1 stop21h 26m

Sydney Kingsford Smith

Tue 10/27

9:40 am-3:44 pm

1 stop24h 04m

$1,090

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

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, January 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 $0. If you are unable to visit Sydney during the month of January, then departing from Idaho during the month March is also very affordable. Most momondo users find prices during this month for around $1,076.

Can stopping save me money on Idaho to Sydney flights?

You could potentially save up to 22% on your flight if you consider stops on a Idaho to Sydney flight.

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 many operators does momondo search 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 AirlinesPriceFrom $1,247Free CancellationRating
7.4
10,104 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Wollongong
Penrith
Katoomba
Leura
Cronulla
Randwick
Manly
Lithgow
Coogee
Terrigal
Charlestown
Swansea

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.

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