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$1,412+ Cheap flights from Montana to Australia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
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Cheap flight deals from Montana to Australia

Keep the following information in mind while searching for Montana to Australia flight deals. Data was last updated April 25, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,412
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$1,413
Provider with most accurate pricing for Bozeman Gallatin Field-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Sydney Kingsford Smith flights.
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From Montana to Australia
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Highest demand for flights based on searches. 32% potential increase in price ($760 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($132 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 25, 2025.

This United Airlines deal was found by Cheapflights users on 4/25. 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 10/2110:38 amMSO - SYD
2 stops28h 22mUnited Airlines
Fri 11/711:20 amSYD - MSO
2 stops28h 06mUnited Airlines
Deal found 4/25$1,412
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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.
Sat 10/186:30 pmMSO - SYD
2 stops44h 35mAlaska Airlines
Sat 11/811:15 amSYD - MSO
2 stops30h 44mAlaska Airlines
Deal found 4/25$1,414
This United Airlines deal was found by Cheapflights users on 4/25. 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 6/92:39 pmHLN - MEL
2 stops25h 36mUnited Airlines
Mon 6/1610:55 amMEL - HLN
2 stops26h 20mUnited Airlines
Deal found 4/25$1,495
This United Airlines deal was found by Cheapflights users on 4/24. 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 6/87:30 amBZN - MEL
2 stops32h 45mUnited Airlines
Sun 6/159:30 amMEL - BZN
1 stop21h 20mUnited Airlines
Deal found 4/24$1,496
This United Airlines deal was found by Cheapflights users on 4/25. 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 6/92:14 pmFCA - SYD
1 stop24h 46mUnited Airlines
Mon 6/1610:20 amSYD - FCA
1 stop21h 14mUnited Airlines
Deal found 4/25$1,507
This Qantas Airways deal was found by Cheapflights users on 4/25. 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.
Tue 10/2110:50 amMSO - SYD
3 stops26h 15mMultiple Airlines
Fri 11/75:25 pmSYD - MSO
2 stops24h 32mMultiple Airlines
Deal found 4/25$1,798
This Air New Zealand deal was found by Cheapflights users on 4/24. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/87:00 amBZN - MEL
3 stops35h 50mMultiple Airlines
Sun 6/158:35 amMEL - BZN
3 stops28h 17mMultiple Airlines
Deal found 4/24$1,835
This deal was found by Cheapflights users on 4/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:00 pmBZN - SYD
1 stop23h 00mUnited Airlines
Mon 10/1311:20 amSYD - BZN
1 stop44h 56mUnited Airlines
Deal found 4/24$2,613
This American Airlines deal was found by Cheapflights users on 4/24. 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.
Sun 6/87:31 amBZN - MEL
1 stop29h 29mAmerican Airlines
Sun 6/153:05 pmMEL - BZN
1 stop35h 34mAmerican Airlines
Deal found 4/24$3,427

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 April 25, 2025.
Use the filters below to find and compare flights from Montana to Australia that are best for you.

Fly from

Montana

Fly to

Australia

Route

Depart

Return

Price

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 10/21

10:38 am-8:00 am

2 stops28h 22m

Sydney Kingsford Smith

Fri 11/7

11:20 am-9:26 pm

2 stops28h 06m

$1,412

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sat 10/18

6:30 pm-8:05 am

2 stops44h 35m

Sydney Kingsford Smith

Sat 11/8

11:15 am-11:59 pm

2 stops30h 44m

$1,414

HelenaMelbourne

HLN - MEL

HLNMEL

Helena

Mon 6/9

2:39 pm-8:15 am

2 stops25h 36m

Melbourne

Mon 6/16

10:55 am-9:15 pm

2 stops26h 20m

$1,495

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Sun 6/8

7:30 am-8:15 am

2 stops32h 45m

Melbourne

Sun 6/15

9:30 am-2:50 pm

1 stop21h 20m

$1,496

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Mon 6/9

2:32 pm-6:55 am

2 stops24h 23m

Sydney Kingsford Smith

Mon 6/16

9:30 am-1:21 pm

1 stop19h 51m

$1,507

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 10/21

10:50 am-6:05 am

3 stops26h 15m

Sydney Kingsford Smith

Fri 11/7

5:25 pm-11:57 pm

2 stops24h 32m

$1,798

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Sun 6/8

7:00 am-10:50 am

3 stops35h 50m

Melbourne

Sun 6/15

8:35 am-8:52 pm

3 stops28h 17m

$1,835

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Thu 10/9

4:00 pm-8:00 am

1 stop23h 00m

Sydney Kingsford Smith

Mon 10/13

11:20 am-3:16 pm

1 stop44h 56m

$2,613

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Sun 6/8

7:31 am-5:00 am

1 stop29h 29m

Melbourne

Sun 6/15

3:05 pm-10:39 am

1 stop35h 34m

$3,427

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

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

What is the cheapest month to book a flight from Montana to Australia?

Currently, February is the cheapest month in which you can book a flight from Montana to Australia (average of $1,046). Flying from Montana to Australia in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MT to AU?

Find hourly flight availability from Montana to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.

When flying from Montana to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 25, 2025.
Alaska Airlines
8.0
Very good
9,928 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,928 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

  • 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.

  • What is the cheapest month to book a flight from Montana to Australia?

    Currently, February is the cheapest month in which you can book a flight from Montana to Australia (average of $1,046). Flying from Montana to Australia in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$860Average$1,467FlexibilityNo cancel feeOn-time69%

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