Cheap flights from Idaho to Sydney from $716

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 22/4. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Idaho to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
15:45 - 06:10
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
19:15 - 21:12
SYD
-
GEG
43h 57m
2 stops
$1,357Qantas Airways
Tue, 3 Mar - Tue, 10 Mar
Qantas Airways Logo
15:45 - 06:10
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
19:15 - 21:12
SYD
-
GEG
43h 57m
2 stops
$1,358Qantas Airways
Tue, 3 Mar - Tue, 10 Mar
American Airlines Logo
15:10 - 09:00
GEG
-
SYD
23h 50m
2 stops
American Airlines Logo
18:50 - 11:44
SYD
-
GEG
34h 54m
2 stops
$1,372American Airlines
Mon, 23 Mar - Mon, 30 Mar
American Airlines Logo
06:00 - 06:55
GEG
-
SYD
30h 55m
1 stop
American Airlines Logo
18:50 - 11:44
SYD
-
GEG
34h 54m
2 stops
$1,375American Airlines
Mon, 23 Mar - Mon, 30 Mar
Multiple Airlines Logo
18:12 - 09:00
GEG
-
SYD
20h 48m
1 stop
Multiple Airlines Logo
18:50 - 22:52
SYD
-
GEG
22h 02m
1 stop
$1,385Multiple Airlines
Mon, 23 Mar - Mon, 30 Mar
Qantas Airways Logo
15:45 - 06:10
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
13:05 - 16:54
SYD
-
GEG
21h 49m
1 stop
$1,391Qantas Airways
Tue, 3 Mar - Tue, 10 Mar
Qantas Airways Logo
15:45 - 06:10
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
13:05 - 16:54
SYD
-
GEG
21h 49m
1 stop
$1,392Qantas Airways
Tue, 3 Mar - Tue, 10 Mar
American Airlines Logo
06:00 - 06:55
GEG
-
SYD
29h 55m
1 stop
American Airlines Logo
13:05 - 20:12
SYD
-
GEG
26h 07m
1 stop
$1,394American Airlines
Sun, 22 Feb - Sun, 8 Mar
Qantas Airways Logo
15:45 - 06:10
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
13:05 - 16:54
SYD
-
GEG
21h 49m
1 stop
$1,395Qantas Airways
Tue, 3 Mar - Tue, 10 Mar
Multiple Airlines Logo
08:07 - 07:30
BOI
-
SYD
31h 23m
1 stop
Multiple Airlines Logo
13:15 - 23:02
SYD
-
BOI
25h 47m
2 stops
$1,440Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr

Qantas Airways flights from Idaho to Sydney

Our best Qantas Airways deals on Idaho to Sydney flight tickets
Qantas Airways
3 Mar
GEG15:45Spokane
19h 25m
1 stop
SYD06:10Sydney Kingsford Smith
10 Mar
SYD19:15Sydney Kingsford Smith
43h 57m
2 stops
GEG21:12Spokane
$1,357
Qantas Airways
3 Mar
GEG15:45Spokane
19h 25m
1 stop
SYD06:10Sydney Kingsford Smith
10 Mar
SYD19:15Sydney Kingsford Smith
43h 57m
2 stops
GEG21:12Spokane
$1,358
Qantas Airways
3 Mar
GEG15:45Spokane
19h 25m
1 stop
SYD06:10Sydney Kingsford Smith
10 Mar
SYD13:05Sydney Kingsford Smith
21h 49m
1 stop
GEG16:54Spokane
$1,391

American Airlines flights from Idaho to Sydney

Our best American Airlines deals on Idaho to Sydney flight tickets
American Airlines
23 Mar
GEG15:10Spokane
23h 50m
2 stops
SYD09:00Sydney Kingsford Smith
30 Mar
SYD18:50Sydney Kingsford Smith
34h 54m
2 stops
GEG11:44Spokane
$1,372
American Airlines
23 Mar
GEG06:00Spokane
30h 55m
1 stop
SYD06:55Sydney Kingsford Smith
30 Mar
SYD18:50Sydney Kingsford Smith
34h 54m
2 stops
GEG11:44Spokane
$1,375
American Airlines
22 Feb
GEG06:00Spokane
29h 55m
1 stop
SYD06:55Sydney Kingsford Smith
8 Mar
SYD13:05Sydney Kingsford Smith
26h 07m
1 stop
GEG20:12Spokane
$1,394

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 7 February 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

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

15:45-06:10

1 stop19h 25m

Sydney Kingsford Smith

Tue 10/3

19:15-21:12

2 stops43h 57m

$1,357

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

15:45-06:10

1 stop19h 25m

Sydney Kingsford Smith

Tue 10/3

19:15-21:12

2 stops43h 57m

$1,358

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 23/3

15:10-09:00

2 stops23h 50m

Sydney Kingsford Smith

Mon 30/3

18:50-11:44

2 stops34h 54m

$1,372

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 23/3

06:00-06:55

1 stop30h 55m

Sydney Kingsford Smith

Mon 30/3

18:50-11:44

2 stops34h 54m

$1,375

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 23/3

18:12-09:00

1 stop20h 48m

Sydney Kingsford Smith

Mon 30/3

18:50-22:52

1 stop22h 02m

$1,385

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

15:45-06:10

1 stop19h 25m

Sydney Kingsford Smith

Tue 10/3

13:05-16:54

1 stop21h 49m

$1,391

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

15:45-06:10

1 stop19h 25m

Sydney Kingsford Smith

Tue 10/3

13:05-16:54

1 stop21h 49m

$1,392

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 22/2

06:00-06:55

1 stop29h 55m

Sydney Kingsford Smith

Sun 8/3

13:05-20:12

1 stop26h 07m

$1,394

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

15:45-06:10

1 stop19h 25m

Sydney Kingsford Smith

Tue 10/3

13:05-16:54

1 stop21h 49m

$1,395

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 13/4

08:07-07:30

1 stop31h 23m

Sydney Kingsford Smith

Mon 20/4

13:15-23:02

2 stops25h 47m

$1,440

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 airline that flies from Idaho to Sydney Kingsford Smith?

XiamenAir and China Eastern 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 25m

Direct flights

None
The fastest flight from Idaho to Sydney takes 19h 25m
There are no direct flights from Idaho to Sydney. There are no popular flight routes 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.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Penrith
Katoomba
Lithgow
Leura
Manly
Coogee
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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/3
Mon 16/3

Find better results for your trip to Australia