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$605+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Aug 15 — Aug 221
Sat 8/15
Sat 8/22
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 July 16, 2026.

This United Airlines deal was found by Cheapflights users on 7/12. 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.
Sat 11/72:34 pm
HLN
-
BNE
2 stops23h 56m
United Airlines
Wed 11/1111:40 am
BNE
-
HLN
2 stops26h 59m
United Airlines
Deal found 7/12$1,149
This Qantas Airways deal was found by Cheapflights users on 7/12. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:52 pm
BZN
-
BNE
1 stop23h 38m
Qantas Airways
Wed 11/119:40 am
BNE
-
BZN
1 stop20h 21m
Qantas Airways
Deal found 7/12$1,177
This oojo deal was found by Cheapflights users on 7/14. 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.
Sun 11/11:52 pm
BZN
-
MEL
2 stops26h 13m
Qantas Airways
Wed 11/116:00 am
MEL
-
BZN
2 stops25h 01m
Qantas Airways
Deal found 7/14$1,188
This Expedia deal was found by Cheapflights users on 7/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:15 pm
BZN
-
BNE
2 stops49h 05m
Qantas Airways
Fri 8/217:35 am
BNE
-
BZN
2 stops29h 02m
Qantas Airways
Deal found 7/14$1,194
This United Airlines deal was found by Cheapflights users on 7/12. 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 7/286:15 am
HLN
-
MEL
2 stops34h 00m
United Airlines
Thu 8/610:55 am
MEL
-
HLN
2 stops26h 25m
United Airlines
Deal found 7/12$1,216
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:30 pm
BZN
-
MEL
2 stops44h 20m
Delta
Fri 8/710:00 am
MEL
-
BZN
2 stops28h 42m
Delta
Deal found 7/12$1,224
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Sat 7/256:15 am
HLN
-
MEL
2 stops58h 00m
United Airlines
Fri 8/710:55 am
MEL
-
HLN
2 stops26h 25m
United Airlines
Deal found 7/12$1,230
This Qantas Airways deal was found by Cheapflights users on 7/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:21 pm
BZN
-
MEL
3 stops28h 14m
Multiple Airlines
Fri 9/47:45 am
MEL
-
BZN
2 stops28h 52m
Multiple Airlines
Deal found 7/14$1,250
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:25 am
BZN
-
MEL
2 stops31h 25m
Delta
Fri 9/410:00 am
MEL
-
BZN
2 stops21h 09m
Delta
Deal found 7/14$1,251
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 12/26:15 am
MSO
-
SYD
2 stops32h 50m
United Airlines
Wed 12/1611:20 am
SYD
-
MSO
2 stops28h 06m
United Airlines
Deal found 7/13$1,311
This Qantas Airways deal was found by Cheapflights users on 7/12. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:52 pm
BZN
-
SYD
1 stop23h 03m
Qantas Airways
Thu 11/126:25 am
SYD
-
BZN
2 stops24h 36m
Qantas Airways
Deal found 7/12$1,363
This oojo deal was found by Cheapflights users on 7/16. 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.
Fri 10/92:03 pm
FCA
-
SYD
2 stops25h 02m
Multiple Airlines
Thu 10/226:50 pm
SYD
-
FCA
2 stops35h 33m
Multiple Airlines
Deal found 7/16$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 July 16, 2026.

Round-trip from

$1,149
(United Airlines)

One-way from

$605
(oojo)
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 July 16, 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

HelenaBrisbane

HLN - BNE

HLNBNE

Helena

Sat 11/7

2:34 pm-7:30 am

2 stops23h 56m

Brisbane

Wed 11/11

11:40 am-9:39 pm

2 stops26h 59m

$1,149

BozemanBrisbane

BZN - BNE

BZNBNE

Bozeman Gallatin Field

Sat 11/7

1:52 pm-6:30 am

1 stop23h 38m

Brisbane

Wed 11/11

9:40 am-1:01 pm

1 stop20h 21m

$1,177

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Fri 8/28

8:25 am-7:50 am

2 stops31h 25m

Melbourne

Fri 9/4

10:00 am-3:09 pm

2 stops21h 09m

$1,251

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 11/9

1:52 pm-6:55 am

1 stop23h 03m

Sydney Kingsford Smith

Thu 11/12

6:25 am-1:01 pm

2 stops24h 36m

$1,363

HelenaMelbourne

HLN - MEL

HLNMEL

Helena

Sun 7/26

6:15 am-8:15 am

2 stops34h 00m

Melbourne

Sun 8/9

9:30 am-9:20 pm

2 stops27h 50m

$1,386

HelenaMelbourne

HLN - MEL

HLNMEL

Helena

Sun 7/26

6:15 am-8:15 am

2 stops34h 00m

Melbourne

Thu 8/6

10:55 am-9:20 pm

2 stops26h 25m

$1,386

HelenaMelbourne

HLN - MEL

HLNMEL

Helena

Sun 7/26

6:15 am-8:15 am

2 stops34h 00m

Melbourne

Fri 8/7

9:30 am-9:20 pm

2 stops27h 50m

$1,386

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Fri 10/9

6:05 am-7:55 am

2 stops56h 50m

Sydney Kingsford Smith

Thu 10/22

11:20 am-3:21 pm

1 stop21h 01m

$1,427

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Mon 10/19

11:16 am-5:50 pm

2 stops37h 34m

Melbourne

Fri 10/23

11:45 pm-11:59 pm

2 stops41h 14m

$1,480
Quickest round-trip

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 10/18

4:15 pm-7:55 am

1 stop22h 40m

Sydney Kingsford Smith

Thu 10/22

11:20 am-3:24 pm

1 stop21h 04m

$1,496

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

Showing 1-10 of 36 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 23h 38m. United Airlines provides one of the quickest options available for as low as $1,177. Airlines will cover a distance of 7805 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

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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 July 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,340Average$1,413FlexibilityNo cancel feeOn-time69%

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