Australia

$596+ Cheap flights from Boise (BOI) to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SYD
May 24 — May 311
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Cheap flight deals from Boise to Australia

Cheapest flights from Boise to Australia
Explore the most affordable flight options available from Boise to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This oojo deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:47 pm
BOI
-
SYD
1 stop20h 43m
Multiple Airlines
Mon 10/510:10 am
SYD
-
BOI
1 stop20h 34m
Multiple Airlines
Deal found 4/20$1,292
This American Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/201:53 pm
BOI
-
SYD
1 stop25h 02m
American Airlines
Wed 5/2712:00 pm
SYD
-
BOI
1 stop26h 29m
American Airlines
Deal found 4/20$1,315
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:42 pm
BOI
-
SYD
2 stops25h 48m
American Airlines
Mon 10/510:10 am
SYD
-
BOI
2 stops23h 40m
American Airlines
Deal found 4/22$1,318
This oojo deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/258:03 am
BOI
-
SYD
1 stop31h 02m
Multiple Airlines
Sun 7/55:50 pm
SYD
-
BOI
1 stop32h 22m
Multiple Airlines
Deal found 4/22$1,353
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:57 pm
BOI
-
SYD
2 stops25h 08m
American Airlines
Mon 8/315:50 pm
SYD
-
BOI
2 stops20h 50m
American Airlines
Deal found 4/22$1,364
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:53 pm
BOI
-
SYD
1 stop25h 02m
American Airlines
Sat 5/99:10 am
SYD
-
BOI
2 stops24h 43m
American Airlines
Deal found 4/23$1,368
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/222:05 pm
BOI
-
SYD
1 stop24h 50m
United Airlines
Thu 7/29:30 am
SYD
-
BOI
2 stops28h 05m
United Airlines
Deal found 4/21$1,369
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:02 am
BOI
-
SYD
1 stop30h 58m
United Airlines
Sun 5/1710:20 am
SYD
-
BOI
1 stop21h 06m
United Airlines
Deal found 4/22$1,376
This oojo deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:47 pm
BOI
-
SYD
1 stop20h 18m
Multiple Airlines
Sat 10/35:50 pm
SYD
-
BOI
1 stop21h 05m
Multiple Airlines
Deal found 4/22$1,383
This Alaska Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:51 pm
BOI
-
SYD
1 stop20h 09m
Alaska Airlines
Tue 11/311:15 am
SYD
-
BOI
1 stop20h 29m
Alaska Airlines
Deal found 4/19$1,385

Find flight deals from Boise to Australia

Keep the following information in mind while searching for Boise to Australia flight deals. Data was last updated April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,292
(oojo)

One-way from

$596
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,270
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Sydney Kingsford Smith flights.
From Boise Air Term. Gowen Fld to Australia
One-way flight from Boise Air Term. Gowen Fld to Australia
Highest demand for flights based on searches. 9% potential increase in price ($131 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Australia 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, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
Use the filters below to find and compare flights from Boise to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 9/30

6:47 pm-7:30 am

1 stop20h 43m

Sydney Kingsford Smith

Mon 10/5

10:10 am-1:44 pm

1 stop20h 34m

$1,292
Quickest round-trip

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 6/3

7:05 pm-6:55 am

1 stop19h 50m

Sydney Kingsford Smith

Wed 6/10

10:20 am-1:08 pm

1 stop18h 48m

$1,318

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 9/30

1:42 pm-7:05 am

2 stops25h 23m

Sydney Kingsford Smith

Mon 10/5

1:00 pm-10:17 pm

1 stop26h 17m

$1,318

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 6/3

12:12 pm-6:55 am

1 stop26h 43m

Sydney Kingsford Smith

Wed 6/10

5:50 pm-11:11 pm

2 stops21h 21m

$1,319

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 5/20

2:14 pm-6:55 am

2 stops24h 41m

Sydney Kingsford Smith

Wed 5/27

9:10 am-5:09 pm

2 stops23h 59m

$1,319

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 6/22

7:05 pm-6:55 am

1 stop19h 50m

Sydney Kingsford Smith

Fri 7/3

9:30 am-7:18 pm

1 stop25h 48m

$1,364

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 6/22

5:40 pm-7:05 am

2 stops21h 25m

Sydney Kingsford Smith

Fri 7/3

12:00 pm-11:05 pm

1 stop27h 05m

$1,365

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 7/30

5:40 pm-7:05 am

2 stops21h 25m

Sydney Kingsford Smith

Mon 8/31

5:50 pm-10:40 pm

2 stops20h 50m

$1,365

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 6/25

10:20 am-7:00 am

2 stops28h 40m

Sydney Kingsford Smith

Sun 7/5

9:30 am-9:35 pm

2 stops28h 05m

$1,368

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Fri 5/8

6:26 pm-7:05 am

2 stops20h 39m

Sydney Kingsford Smith

Sun 5/17

12:00 pm-10:54 pm

1 stop26h 54m

$1,368

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from Boise to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boise to Australia
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated April 24, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Boise to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Boise to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Boise to Australia?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Australia. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Boise to Australia?

    Airlines like United Airlines and American Airlines fly from Boise to Australia in about 19h 50m. The time it takes to get you to your destination can typically vary by up to 5h 33m. The distance from Boise to Australia is about 7894 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Boise to Australia that include hotel bookings?

    Yes. In addition to deals on Boise to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Australia.

  • Can I find deals for business class flights from Boise to Australia?

    Yes. Cheapflights offers flight deals from Boise to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Boise to Australia

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Boise to Australia

Discover the top 2 airlines that operate flights from Boise to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$966Average$1,382FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$967Average$1,229FlexibilityNo cancel feeOn-time71%

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