Cheap flights from Sydney to Idaho from $1,036

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Idaho departing on 8/17. 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

Find the cheapest flights from Sydney to Idaho

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:00 pm - 10:11 pm
SYD
-
BOI
26h 11m
1 stop
American Airlines Logo
12:12 pm - 7:05 am
BOI
-
SYD
50h 53m
2 stops
$1,036American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
12:00 pm - 10:11 pm
SYD
-
BOI
26h 11m
1 stop
American Airlines Logo
12:12 pm - 7:05 am
BOI
-
SYD
50h 53m
2 stops
$1,040American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
9:10 am - 10:40 pm
SYD
-
BOI
29h 30m
2 stops
American Airlines Logo
6:44 am - 7:05 am
BOI
-
SYD
32h 21m
2 stops
$1,114American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
9:10 am - 10:11 pm
SYD
-
BOI
29h 01m
2 stops
American Airlines Logo
8:01 am - 7:05 am
BOI
-
SYD
31h 04m
2 stops
$1,118American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
9:10 am - 10:40 pm
SYD
-
BOI
29h 30m
2 stops
American Airlines Logo
12:12 pm - 7:05 am
BOI
-
SYD
26h 53m
2 stops
$1,120American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
12:00 pm - 10:40 pm
SYD
-
BOI
26h 40m
2 stops
American Airlines Logo
6:44 am - 7:05 am
BOI
-
SYD
32h 21m
2 stops
$1,122American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
12:00 pm - 10:11 pm
SYD
-
BOI
26h 11m
1 stop
American Airlines Logo
12:12 pm - 7:05 am
BOI
-
SYD
26h 53m
2 stops
$1,127American Airlines
Mon, Aug 17 - Wed, Aug 19
United Airlines Logo
10:20 am - 3:31 pm
SYD
-
BOI
21h 11m
1 stop
United Airlines Logo
6:15 am - 6:55 am
BOI
-
SYD
32h 40m
1 stop
$1,132United Airlines
Mon, Aug 17 - Wed, Aug 19
United Airlines Logo
10:20 am - 11:04 am
SYD
-
BOI
16h 44m
1 stop
United Airlines Logo
6:15 am - 6:55 am
BOI
-
SYD
32h 40m
1 stop
$1,137United Airlines
Mon, Aug 17 - Wed, Aug 19
United Airlines Logo
10:20 am - 11:04 am
SYD
-
BOI
16h 44m
1 stop
United Airlines Logo
7:05 pm - 6:55 am
BOI
-
SYD
19h 50m
1 stop
$1,138United Airlines
Mon, Aug 17 - Wed, Aug 19

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United Airlines flights from Sydney to Idaho

Our best United Airlines deals on Sydney to Idaho flight tickets
United Airlines
Aug 17
SYD10:20 amSydney Kingsford Smith
21h 11m
1 stop
BOI3:31 pmBoise Air Term. Gowen Fld
Aug 19
BOI6:15 amBoise Air Term. Gowen Fld
32h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
$1,132
United Airlines
Aug 17
SYD10:20 amSydney Kingsford Smith
16h 44m
1 stop
BOI11:04 amBoise Air Term. Gowen Fld
Aug 19
BOI6:15 amBoise Air Term. Gowen Fld
32h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
$1,137
United Airlines
Aug 17
SYD10:20 amSydney Kingsford Smith
16h 44m
1 stop
BOI11:04 amBoise Air Term. Gowen Fld
Aug 19
BOI7:05 pmBoise Air Term. Gowen Fld
19h 50m
1 stop
SYD6:55 amSydney Kingsford Smith
$1,138

American Airlines flights from Sydney to Idaho

Our best American Airlines deals on Sydney to Idaho flight tickets
American Airlines
Aug 17
SYD12:00 pmSydney Kingsford Smith
26h 11m
1 stop
BOI10:11 pmBoise Air Term. Gowen Fld
Aug 19
BOI12:12 pmBoise Air Term. Gowen Fld
50h 53m
2 stops
SYD7:05 amSydney Kingsford Smith
$1,036
American Airlines
Aug 17
SYD12:00 pmSydney Kingsford Smith
26h 11m
1 stop
BOI10:11 pmBoise Air Term. Gowen Fld
Aug 19
BOI12:12 pmBoise Air Term. Gowen Fld
50h 53m
2 stops
SYD7:05 amSydney Kingsford Smith
$1,040
American Airlines
Aug 17
SYD9:10 amSydney Kingsford Smith
29h 30m
2 stops
BOI10:40 pmBoise Air Term. Gowen Fld
Aug 19
BOI6:44 amBoise Air Term. Gowen Fld
32h 21m
2 stops
SYD7:05 amSydney Kingsford Smith
$1,114

momondo Fare Finder

 
Customize your flight search to find flights from Sydney to Idaho 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 June 12, 2026.
Use the filters below to find and compare flights from Sydney to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

12:00 pm-10:11 pm

1 stop26h 11m

Boise Air Term. Gowen Fld

Wed 8/19

12:12 pm-7:05 am

2 stops50h 53m

$1,036

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

12:00 pm-10:11 pm

1 stop26h 11m

Boise Air Term. Gowen Fld

Wed 8/19

12:12 pm-7:05 am

2 stops50h 53m

$1,040

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

9:10 am-10:40 pm

2 stops29h 30m

Boise Air Term. Gowen Fld

Wed 8/19

6:44 am-7:05 am

2 stops32h 21m

$1,114

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

9:10 am-10:11 pm

2 stops29h 01m

Boise Air Term. Gowen Fld

Wed 8/19

8:01 am-7:05 am

2 stops31h 04m

$1,118

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

9:10 am-10:40 pm

2 stops29h 30m

Boise Air Term. Gowen Fld

Wed 8/19

12:12 pm-7:05 am

2 stops26h 53m

$1,120

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

12:00 pm-10:40 pm

2 stops26h 40m

Boise Air Term. Gowen Fld

Wed 8/19

6:44 am-7:05 am

2 stops32h 21m

$1,122

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

12:00 pm-10:11 pm

1 stop26h 11m

Boise Air Term. Gowen Fld

Wed 8/19

12:12 pm-7:05 am

2 stops26h 53m

$1,127

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

10:20 am-3:31 pm

1 stop21h 11m

Boise Air Term. Gowen Fld

Wed 8/19

6:15 am-6:55 am

1 stop32h 40m

$1,132

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

10:20 am-11:04 am

1 stop16h 44m

Boise Air Term. Gowen Fld

Wed 8/19

6:15 am-6:55 am

1 stop32h 40m

$1,137
Quickest round-trip

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 8/17

10:20 am-11:04 am

1 stop16h 44m

Boise Air Term. Gowen Fld

Wed 8/19

7:05 pm-6:55 am

1 stop19h 50m

$1,138

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Idaho from

How to get the cheapest flight ticket from Sydney to Idaho

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

Can stopping save me money on Sydney to Idaho flights?

You could potentially save up to 1% on your flight if you consider stops on a Sydney to Idaho flight.

Cheap Sydney to Idaho flight deals and tips

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

Fastest flight time

22h 24m

Direct flights

None
The fastest flight from Sydney to Idaho takes 22h 24m
There are no direct flights from Sydney to Idaho. There are no popular flight routes from Sydney to Idaho.

Frequently asked questions about flying from Sydney to Idaho

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Idaho?

    Prices for flights from Sydney Kingsford Smith Airport to Idaho are refreshed on a daily basis.

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

    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 layovers 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 Sydney Kingsford Smith Airport to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Idaho from Sydney 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 Idaho quick and easy, saving you time and money.

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

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

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

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 Sydney to Idaho.

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

Of course. momondo tracks the price of Sydney to Idaho flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sun 7/12
Sun 7/19

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