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$523+ Cheap flights from Missoula (MSO) 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SYD
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap flight deals from Missoula to Australia

Cheapest flights from Missoula to Australia
Explore the most affordable flight options available from Missoula to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 24, 2026.

This United Airlines deal was found by Cheapflights users on 2/23. 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 3/86:15 am
MSO
-
SYD
2 stops32h 50m
United Airlines
Wed 3/1112:10 pm
SYD
-
MSO
2 stops26h 47m
United Airlines
Deal found 2/23$1,083
This United Airlines deal was found by Cheapflights users on 2/21. 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 2/285:08 pm
MSO
-
SYD
2 stops43h 52m
United Airlines
Wed 3/412:10 pm
SYD
-
MSO
2 stops27h 47m
United Airlines
Deal found 2/21$1,150
This American Airlines deal was found by Cheapflights users on 2/23. 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 4/96:45 am
MSO
-
SYD
1 stop32h 10m
American Airlines
Thu 4/1612:00 pm
SYD
-
MSO
1 stop25h 45m
American Airlines
Deal found 2/23$1,156
This United Airlines deal was found by Cheapflights users on 2/24. 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.
Fri 3/136:15 am
MSO
-
SYD
2 stops32h 50m
United Airlines
Fri 3/2011:50 am
SYD
-
MSO
2 stops27h 07m
United Airlines
Deal found 2/24$1,164
This Delta deal was found by Cheapflights users on 2/23. 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 4/95:20 am
MSO
-
SYD
2 stops33h 30m
Delta
Thu 4/169:15 am
SYD
-
MSO
2 stops31h 01m
Delta
Deal found 2/23$1,224
This American Airlines deal was found by Cheapflights users on 2/24. 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.
Fri 3/136:15 am
MSO
-
SYD
1 stop31h 40m
American Airlines
Fri 3/201:05 pm
SYD
-
MSO
1 stop25h 51m
American Airlines
Deal found 2/24$1,306
This BusinessClass deal was found by Cheapflights users on 2/21. 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.
Wed 2/251:16 pm
MSO
-
SYD
2 stops25h 14m
Multiple Airlines
Fri 2/2710:40 am
SYD
-
MSO
2 stops24h 43m
Multiple Airlines
Deal found 2/21$1,485
This United Airlines deal was found by Cheapflights users on 2/22. 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 4/26:15 am
MSO
-
SYD
2 stops32h 45m
United Airlines
Sat 4/119:30 am
SYD
-
MSO
2 stops22h 36m
United Airlines
Deal found 2/22$1,693
This United Airlines deal was found by Cheapflights users on 2/23. 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 12/166:15 am
MSO
-
SYD
2 stops32h 50m
United Airlines
Tue 1/511:50 am
SYD
-
MSO
2 stops43h 37m
United Airlines
Deal found 2/23$2,115

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 February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,083
(United Airlines)

One-way from

$523
(Delta)
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
One-way flight from Missoula Johnson-Bell Field to Australia
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 February 24, 2026.
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

Sun 3/8

6:15 am-8:05 am

2 stops32h 50m

Sydney Kingsford Smith

Wed 3/11

12:10 pm-9:57 pm

2 stops26h 47m

$1,083

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 4/9

5:20 am-6:50 am

2 stops33h 30m

Sydney Kingsford Smith

Thu 4/16

9:15 am-12:16 am

2 stops31h 01m

$1,224

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Fri 3/13

6:15 am-6:55 am

1 stop31h 40m

Sydney Kingsford Smith

Fri 3/20

1:05 pm-9:56 pm

1 stop25h 51m

$1,306

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 4/2

6:15 am-8:00 am

2 stops32h 45m

Sydney Kingsford Smith

Sat 4/11

9:30 am-4:06 pm

2 stops22h 36m

$1,693

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 4/2

1:20 pm-8:05 am

2 stops25h 45m

Sydney Kingsford Smith

Sat 4/11

12:00 pm-9:45 pm

1 stop25h 45m

$2,295

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 4/2

4:23 pm-6:50 pm

2 stops33h 27m

Sydney Kingsford Smith

Sat 4/11

8:45 pm-1:13 pm

3 stops32h 28m

$3,666

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 4/12

1:07 pm-6:50 am

2 stops25h 43m

$523

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 7/30

4:40 pm-7:05 am

1 stop22h 25m

$540

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 7/30

2:25 pm-7:00 am

2 stops24h 35m

$549

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 4/12

7:00 am-6:25 am

3 stops31h 25m

$3,333

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

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 February 24, 2026.
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
9,345 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,345 reviews
United Airlines
7.4
Good
9,345 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 25h 43m. United Airlines provides one of the quickest options available for as low as $1,124. The distance between Missoula and Australia is about 8081 mi. This flight may include one or multiple stops.

  • 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 February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$878Average$1,494FlexibilityNo cancel feeOn-time69%

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