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$540+ Cheap flights from Missoula (MSO) to Sydney (SYD)

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SYD
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
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Cheap flight deals from Missoula to Sydney

Cheapest flights from Missoula to Sydney
Explore the most affordable flight options available from Missoula to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

This American Airlines deal was found by Cheapflights users on 2/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/81:21 pm
MSO
-
SYD
2 stops26h 39m
American Airlines
Wed 3/1111:20 am
SYD
-
MSO
2 stops27h 36m
American Airlines
Deal found 2/25$1,065
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Sun 3/86:15 am
MSO
-
SYD
2 stops31h 05m
United Airlines
Wed 3/1111:50 am
SYD
-
MSO
2 stops27h 07m
United Airlines
Deal found 2/25$1,071
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 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 Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,065
(American Airlines)

One-way from

$540
(American Airlines)
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 Sydney Kingsford Smith
Search Deals
One-way flight from Missoula Johnson-Bell Field to Sydney Kingsford Smith
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula to Sydney 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 27, 2026.
Use the filters below to find and compare flights from Missoula to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

Thu 4/9

6:45 am-6:55 am

1 stop32h 10m

Sydney Kingsford Smith

Thu 4/16

9:10 am-9:45 pm

2 stops28h 35m

$1,303

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

Fri 3/13

1:01 pm-6:10 am

2 stops24h 09m

Sydney Kingsford Smith

Fri 3/20

5:00 pm-11:57 pm

3 stops23h 57m

$3,581

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 4/9

1:53 pm-7:30 am

3 stops25h 37m

Sydney Kingsford Smith

Thu 4/16

6:00 am-11:57 pm

3 stops33h 57m

$3,784

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Sorted by cheapest first

Compare providers for flights from Missoula to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Missoula to Sydney in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Missoula-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Missoula-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Missoula-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Missoula to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated February 27, 2026.
Peruse reviews from past customers who have flown with United Airlines from Missoula to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,349 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

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
9,349 reviews
United Airlines
7.4
Good
9,349 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

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 Sydney. 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 Missoula to Sydney?

    A quick flight from Missoula to Sydney can take about 26h 39m. American Airlines provides one of the quickest options available for as low as $1,065. Airlines will cover a distance of 8081 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Missoula to Sydney round-trip?

    Currently priced at $878, United Airlines will fly you from Missoula to Sydney and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missoula to Sydney 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Missoula to Sydney

Discover the top airline that operate flights from Missoula to Sydney. 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$878Average$1,494FlexibilityNo cancel feeOn-time69%

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