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$599+ Cheap flights from Montana 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
1 adult, Economy
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Cheap flight deals from Montana to Australia

Cheapest flights from Montana to Australia
Explore the most affordable flight options available from Montana to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.

This BusinessClass deal was found by Cheapflights users on 5/19. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:31 pm
BZN
-
SYD
1 stop21h 29m
Air New Zealand
Thu 6/119:30 am
SYD
-
BZN
1 stop22h 59m
Air New Zealand
Deal found 5/19$1,291
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:26 pm
FCA
-
SYD
1 stop25h 34m
Air New Zealand
Sun 9/69:30 am
SYD
-
FCA
1 stop18h 58m
Air New Zealand
Deal found 5/15$1,294
This KAYAK deal was found by Cheapflights users on 5/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:27 pm
MSO
-
SYD
2 stops24h 48m
Air New Zealand
Wed 12/1611:20 am
SYD
-
MSO
2 stops28h 06m
Air New Zealand
Deal found 5/19$1,313
This KAYAK deal was found by Cheapflights users on 5/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/72:29 pm
FCA
-
SYD
2 stops24h 36m
Air New Zealand
Tue 12/1511:50 am
SYD
-
FCA
2 stops27h 40m
Air New Zealand
Deal found 5/17$1,315
This United Airlines deal was found by Cheapflights users on 5/17. 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 11/306:15 am
MSO
-
SYD
2 stops32h 50m
United Airlines
Sun 12/1311:20 am
SYD
-
MSO
2 stops28h 06m
United Airlines
Deal found 5/17$1,316
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Sun 12/62:29 pm
FCA
-
SYD
2 stops24h 46m
United Airlines
Wed 12/1611:50 am
SYD
-
FCA
2 stops27h 40m
United Airlines
Deal found 5/17$1,316
This United Airlines deal was found by Cheapflights users on 5/15. 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 6/14:17 pm
BZN
-
SYD
1 stop22h 38m
United Airlines
Fri 6/129:30 am
SYD
-
BZN
1 stop22h 59m
United Airlines
Deal found 5/15$1,336
This KAYAK deal was found by Cheapflights users on 5/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:17 pm
BZN
-
SYD
1 stop22h 38m
Air New Zealand
Fri 6/1210:20 am
SYD
-
BZN
1 stop21h 01m
Air New Zealand
Deal found 5/18$1,344
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Tue 6/94:29 pm
BZN
-
SYD
2 stops22h 26m
United Airlines
Thu 6/189:30 am
SYD
-
BZN
1 stop22h 59m
United Airlines
Deal found 5/15$1,345
This American Airlines deal was found by Cheapflights users on 5/18. 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 6/14:16 pm
BZN
-
SYD
1 stop22h 39m
American Airlines
Fri 6/129:25 pm
SYD
-
BZN
2 stops31h 22m
American Airlines
Deal found 5/18$1,346
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Thu 12/32:27 pm
MSO
-
SYD
2 stops24h 38m
United Airlines
Tue 12/1512:10 pm
SYD
-
MSO
2 stops22h 00m
United Airlines
Deal found 5/17$1,366
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Sun 12/62:29 pm
FCA
-
SYD
2 stops24h 36m
United Airlines
Thu 12/1712:10 pm
SYD
-
FCA
1 stop18h 37m
United Airlines
Deal found 5/17$1,366

Find flight deals from Montana to Australia

Keep the following information in mind while searching for Montana to Australia flight deals. Data was last updated May 20, 2026.

Round-trip from

$1,291
(BusinessClass)

One-way from

$599
(Delta)
From Montana to Australia
Search Deals
One-way flight from Montana to Australia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana 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 May 20, 2026.
Use the filters below to find and compare flights from Montana to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 6/1

5:31 pm-7:00 am

1 stop21h 29m

Sydney Kingsford Smith

Thu 6/11

9:30 am-4:29 pm

1 stop22h 59m

$1,291

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Wed 8/26

1:26 pm-7:00 am

1 stop25h 34m

Sydney Kingsford Smith

Sun 9/6

9:30 am-12:28 pm

1 stop18h 58m

$1,294

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 6/1

2:26 pm-7:00 am

2 stops24h 34m

Sydney Kingsford Smith

Fri 6/12

10:20 am-3:33 pm

2 stops21h 13m

$1,295
Quickest round-trip

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 6/1

5:31 pm-7:00 am

1 stop21h 29m

Sydney Kingsford Smith

Thu 6/11

10:20 am-3:33 pm

2 stops21h 13m

$1,336

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 6/1

5:31 pm-7:00 am

1 stop21h 29m

Sydney Kingsford Smith

Fri 6/12

9:30 am-4:29 pm

1 stop22h 59m

$1,336

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Fri 8/14

4:15 pm-6:55 am

1 stop22h 40m

Sydney Kingsford Smith

Tue 8/18

10:20 am-3:24 pm

1 stop21h 04m

$1,464

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Thu 6/4

10:42 am-7:00 am

2 stops28h 18m

Sydney Kingsford Smith

Mon 6/8

9:30 am-12:27 pm

1 stop18h 57m

$1,484

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Tue 10/27

6:31 am-7:00 am

2 stops31h 29m

Sydney Kingsford Smith

Sat 10/31

10:20 am-9:30 pm

2 stops28h 10m

$1,505

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Sun 11/1

2:05 pm-7:45 pm

2 stops35h 40m

Sydney Kingsford Smith

Sat 11/7

9:40 pm-1:25 pm

3 stops33h 45m

$1,615

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Fri 10/9

12:25 pm-7:55 am

2 stops50h 30m

Sydney Kingsford Smith

Thu 10/22

10:30 am-4:21 pm

2 stops22h 51m

$1,630

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/19

Showing 1-10 of 30 resultsSorted by cheapest first
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Best time to book a flight from Montana to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Montana 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 Montana to Australia
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Montana to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montana to Australia?

    A quick flight from Montana to Australia can take about 21h 29m. Air New Zealand provides one of the quickest options available for as low as $1,291. Airlines will cover a distance of 8183 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montana 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Montana to Australia

Discover the top airline that operate flights from Montana 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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,215Average$1,530FlexibilityNo cancel feeOn-time69%

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