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$1,236+ Cheap flights from Missoula (MSO) 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SYD
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Missoula to Australia

Best flights from Missoula to Australia
Discover carefully curated flight deals from Missoula to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2025.

This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:52 pmMSO - SYD
1 stop23h 13mAmerican Airlines
Tue 6/1612:00 pmSYD - MSO
1 stop24h 53mAmerican Airlines
Deal found 12/19$1,236
This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/125:00 amMSO - SYD
2 stops31h 50mDelta
Sat 3/710:40 amSYD - MSO
2 stops30h 45mDelta
Deal found 12/19$1,275
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:15 pmMSO - SYD
2 stops45h 45mUnited Airlines
Wed 5/1310:20 amSYD - MSO
2 stops27h 22mUnited Airlines
Deal found 12/18$1,373
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/31:05 pmMSO - SYD
2 stops26h 00mAmerican Airlines
Sun 5/109:10 amSYD - MSO
2 stops28h 19mAmerican Airlines
Deal found 12/19$1,240
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/111:21 pmMSO - SYD
2 stops25h 39mAmerican Airlines
Tue 3/311:20 amSYD - MSO
2 stops28h 21mAmerican Airlines
Deal found 12/19$1,240
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:00 amMSO - SYD
2 stops30h 25mAmerican Airlines
Sat 3/72:05 pmSYD - MSO
1 stop25h 36mAmerican Airlines
Deal found 12/19$1,242

Find flight deals from Missoula to Australia

Keep the following information in mind while searching for Missoula to Australia flight deals. Data was last updated December 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,236
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$1,361
Provider with most accurate pricing for Missoula Johnson-Bell Field-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Sydney Kingsford Smith flights.
Search Deals
From Missoula Johnson-Bell Field to Australia
Search Deals
Highest demand for flights based on searches. 40% potential increase in price ($958 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($107 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula 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 December 21, 2025.
Use the filters below to find and compare flights from Missoula to Australia that are best for you.

Fly from

Missoula

Fly to

Australia

Route

Depart

Return

Price

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 6/9

3:52 pm-7:05 am

1 stop23h 13m

Sydney Kingsford Smith

Tue 6/16

12:00 pm-8:53 pm

1 stop24h 53m

$1,236

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 5/3

1:05 pm-7:05 am

2 stops26h 00m

Sydney Kingsford Smith

Sun 5/10

9:10 am-9:29 pm

2 stops28h 19m

$1,240

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 2/11

1:21 pm-9:00 am

2 stops25h 39m

Sydney Kingsford Smith

Tue 3/3

11:20 am-9:41 pm

2 stops28h 21m

$1,240

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

7:00 am-7:25 am

2 stops30h 25m

Sydney Kingsford Smith

Sat 3/7

2:05 pm-9:41 pm

1 stop25h 36m

$1,242

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

5:00 am-6:50 am

2 stops31h 50m

Sydney Kingsford Smith

Sat 3/7

10:40 am-11:25 pm

2 stops30h 45m

$1,275

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sat 5/9

5:15 pm-7:00 am

2 stops45h 45m

Sydney Kingsford Smith

Wed 5/13

10:20 am-9:42 pm

2 stops27h 22m

$1,373

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Best time to book a flight from Missoula to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Missoula 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 Missoula 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 December 21, 2025.
See what other customers who have flown with United Airlines from Missoula to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,099 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,099 reviews
United Airlines
7.4
Good
9,099 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Missoula 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 Missoula to Australia?

    Missoula Johnson-Bell Field (MSO) is the airport you will fly out of if you book a flight from Missoula to Australia. It is only a 5.5 mi journey to Johnson-Bell Field (MSO) from Missoula’s city center.

  • How long is the flight from Missoula to Australia?

    A quick flight from Missoula to Australia can take about 23h 13m. American Airlines provides one of the quickest options available for as low as $1,236. The distance between Missoula and Australia is about 8081 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missoula 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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Top airline flying from Missoula to Australia

Discover the top airline that operate flights from Missoula 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$878Average$1,494FlexibilityNo cancel feeOn-time69%

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