HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$970+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Ağu 7 — Ağu 141
Per 8/7
Per 8/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to Australia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Ağustos 2, 2025.

Round-trip from

$970
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$984
From Montana to Australia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($319 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($101 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 Ağustos 2, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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.
Paz 9/141:50 pmMSO - SYD
1 stop25h 05mAmerican Airlines
Paz 9/2112:10 pmSYD - MSO
2 stops27h 08mAmerican Airlines
Deal found 7/31$970
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Paz 9/145:45 amMSO - SYD
2 stops33h 20mAlaska Airlines
Paz 9/219:10 amSYD - MSO
2 stops31h 17mAlaska Airlines
Deal found 7/31$1,034
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Paz 9/144:17 pmMSO - SYD
1 stop22h 38mUnited Airlines
Paz 9/2110:20 amSYD - MSO
1 stop21h 16mUnited Airlines
Deal found 7/31$1,181
This oojo deal was found by Cheapflights users on 8/1. 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.
Per 11/131:37 pmBZN - MEL
2 stops25h 48mAir New Zealand
Paz 12/710:35 amMEL - BZN
2 stops43h 24mAir New Zealand
Deal found 8/1$1,269
This Delta deal was found by Cheapflights users on 8/1. 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.
Paz 8/311:01 pmMSO - SYD
2 stops25h 34mDelta
Paz 9/79:25 amSYD - MSO
2 stops29h 45mDelta
Deal found 8/1$1,379
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Per 11/134:00 pmBZN - MEL
1 stop24h 00mUnited Airlines
Paz 12/711:30 amMEL - BZN
1 stop18h 29mUnited Airlines
Deal found 7/31$1,404
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Pzt 9/159:45 amBTM - MEL
2 stops30h 30mUnited Airlines
Pzt 9/2210:55 amMEL - BTM
2 stops27h 26mUnited Airlines
Deal found 8/1$1,504
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Paz 9/142:30 pmHLN - MEL
2 stops25h 45mUnited Airlines
Paz 9/2110:55 amMEL - HLN
2 stops26h 16mUnited Airlines
Deal found 7/31$1,508
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Cmt 10/44:13 pmBZN - SYD
1 stop22h 47mUnited Airlines
Çar 10/811:20 amSYD - BZN
1 stop20h 56mUnited Airlines
Deal found 8/1$1,568
This Delta deal was found by Cheapflights users on 7/30. 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.
Per 10/25:20 amFCA - SYD
2 stops33h 15mDelta
Pzt 10/610:25 amSYD - FCA
2 stops29h 44mDelta
Deal found 7/30$1,574
This Air New Zealand deal was found by Cheapflights users on 8/1. 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.
Per 11/136:35 amBZN - MEL
3 stops32h 50mMultiple Airlines
Paz 12/710:35 amMEL - BZN
3 stops29h 04mMultiple Airlines
Deal found 8/1$1,721
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Per 10/24:08 pmFCA - SYD
1 stop22h 47mUnited Airlines
Pzt 10/611:20 amSYD - FCA
1 stop21h 07mUnited Airlines
Deal found 7/30$2,062

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 Ağustos 2, 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

Paz 9/14

1:50 pm-6:55 am

1 stop25h 05m

Sydney Kingsford Smith

Paz 9/21

12:10 pm-11:18 pm

2 stops27h 08m

$970

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Paz 9/14

5:45 am-7:05 am

2 stops33h 20m

Sydney Kingsford Smith

Paz 9/21

9:10 am-12:27 am

2 stops31h 17m

$1,034

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Paz 9/14

4:17 pm-6:55 am

1 stop22h 38m

Sydney Kingsford Smith

Paz 9/21

10:20 am-3:36 pm

1 stop21h 16m

$1,181

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Per 11/13

1:37 pm-9:25 am

2 stops25h 48m

Melbourne

Paz 12/7

10:35 am-11:59 am

2 stops43h 24m

$1,269

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Paz 8/31

1:01 pm-6:35 am

2 stops25h 34m

Sydney Kingsford Smith

Paz 9/7

9:25 am-11:10 pm

2 stops29h 45m

$1,379

BozemanMelbourne

BZN - MEL

BZNMEL

Bozeman Gallatin Field

Per 11/13

4:00 pm-10:00 am

1 stop24h 00m

Melbourne

Paz 12/7

11:30 am-11:59 am

1 stop18h 29m

$1,404

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Cum 1/16

7:00 am-6:20 am

2 stops29h 20m

Sydney Kingsford Smith

Cum 1/30

12:10 pm-2:35 pm

1 stop20h 25m

$1,457

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Cum 1/16

3:40 pm-8:45 am

2 stops23h 05m

Sydney Kingsford Smith

Cum 1/30

9:55 am-1:20 pm

2 stops45h 25m

$1,470

ButteMelbourne

BTM - MEL

BTMMEL

Butte Silver Bow Co

Pzt 9/15

9:45 am-8:15 am

2 stops30h 30m

Melbourne

Pzt 9/22

10:55 am-10:21 pm

2 stops27h 26m

$1,504

HelenaMelbourne

HLN - MEL

HLNMEL

Helena

Paz 9/14

2:30 pm-8:15 am

2 stops25h 45m

Melbourne

Paz 9/21

10:55 am-9:11 pm

2 stops26h 16m

$1,508

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 23 results
1
2
3

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 $1,028). Flying from Montana to Australia in December is currently the most expensive (average of $1,619). 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 Ağustos 2, 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.

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 Ağustos 2, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Air New Zealand from Montana to Australia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air New Zealand
8.0
Very good
501 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,613 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Cathay Pacific
7.6
Good
951 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 $1,028). Flying from Montana to Australia in December is currently the most expensive (average of $1,619). 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

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.

Alternative routes for Montana to Australia

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
Los Angeles to Melbourne flights
Los Angeles to Auckland flights
San Francisco to Sydney flights
John F Kennedy Intl to Sydney flights
Dallas/Fort Worth to Sydney flights
San Francisco to Auckland flights
Newark to Sydney flights
John F Kennedy Intl to Melbourne flights
LaGuardia to Sydney flights
San Francisco to Melbourne flights
Los Angeles to Brisbane flights
John F Kennedy Intl to Auckland flights
Hobby to Sydney flights
Los Angeles to Papeete flights
Seattle to Sydney flights
Newark to Melbourne flights
LaGuardia to Melbourne flights
Ontario to Sydney flights
George Bush Intcntl to Sydney flights
Dallas/Fort Worth to Auckland flights
Dulles Intl to Sydney flights
Boston to Sydney flights
Los Angeles to Nadi flights
Santa Ana to Sydney flights
Seattle to Auckland flights
O'Hare Intl to Sydney flights
John F Kennedy Intl to Brisbane flights
Ontario to Melbourne flights
Los Angeles to Avalon flights
Newark to Auckland flights
Reagan-National to Sydney flights
Hobby to Auckland flights
San Francisco to Papeete flights
Seattle to Melbourne flights
O'Hare Intl to Melbourne flights
Dallas/Fort Worth to Melbourne flights
LaGuardia to Auckland flights
Baltimore to Sydney flights
Ontario to Auckland flights
Boston to Auckland flights
Denver to Auckland flights
Dulles Intl to Auckland flights
George Bush Intcntl to Auckland flights
Dulles Intl to Melbourne flights
Santa Ana to Auckland flights
San Jose to Sydney flights
Honolulu to Auckland flights
Detroit to Sydney flights
Atlanta to Sydney flights

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 Ağustos 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$890Average$1,435FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.