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$1,132+ Cheap flights from Missoula (MSO) to Sydney (SYD)

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SYD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$1,132
(American Airlines)
From Missoula Johnson-Bell Field to Sydney Kingsford Smith
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Find 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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 10/301:31 pmMSO - SYD
1 stop24h 24mAmerican Airlines
Thu 11/62:05 pmSYD - MSO
1 stop23h 50mAmerican Airlines
Deal found 9/14$1,132
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 11/125:25 amMSO - SYD
2 stops33h 05mDelta
Sun 11/1610:40 amSYD - MSO
2 stops19h 53mDelta
Deal found 9/16$1,298
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/125:10 pmMSO - SYD
2 stops43h 50mUnited Airlines
Sun 11/1612:10 pmSYD - MSO
2 stops27h 37mUnited Airlines
Deal found 9/14$1,307
This Jetabroad deal was found by Cheapflights users on 9/14. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:30 amMSO - SYD
2 stops21h 15mHawaiian Airlines
Thu 11/69:40 pmSYD - MSO
3 stops33h 39mHawaiian Airlines
Deal found 9/14$1,376
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/167:01 amMSO - SYD
2 stops29h 09mAmerican Airlines
Fri 11/212:05 pmSYD - MSO
1 stop24h 29mAmerican Airlines
Deal found 9/16$1,953
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/242:38 pmMSO - SYD
2 stops46h 22mUnited Airlines
Sun 1/411:50 amSYD - MSO
2 stops43h 46mUnited Airlines
Deal found 9/16$2,132
This American Airlines deal was found by Cheapflights users on 9/16. 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 12/247:00 amMSO - SYD
1 stop29h 55mAmerican Airlines
Sun 1/411:20 amSYD - MSO
2 stops28h 04mAmerican Airlines
Deal found 9/16$3,301
This American Airlines deal was found by Cheapflights users on 9/14. 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 11/127:01 amMSO - SYD
1 stop29h 54mAmerican Airlines
Sun 11/162:05 pmSYD - MSO
1 stop23h 50mAmerican Airlines
Deal found 9/14$3,567

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 September 17, 2025.
Use the filters below to find and compare flights from Missoula to Sydney that are best for you.

Fly from

Missoula

Fly to

Sydney

Route

Depart

Return

Price

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 10/30

1:31 pm-6:55 am

1 stop24h 24m

Sydney Kingsford Smith

Thu 11/6

2:05 pm-7:55 pm

1 stop23h 50m

$1,132

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

7:00 am-7:25 am

2 stops30h 25m

Sydney Kingsford Smith

Wed 3/4

11:15 am-9:37 pm

2 stops28h 22m

$1,136

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 2/11

7:00 am-7:25 am

2 stops30h 25m

Sydney Kingsford Smith

Tue 3/3

11:15 am-9:37 pm

2 stops28h 22m

$1,136

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 12/16

6:15 am-9:05 am

2 stops32h 50m

$4,962

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 12/16

7:00 am-6:55 am

1 stop29h 55m

$9,008

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 17, 2025.
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
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 24h 24m. American Airlines provides one of the quickest options available for as low as $1,132. Airlines will cover a distance of 8081 mi.

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

    Currently priced at $924, 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.

  • What is the cheapest month to book a flight from Missoula to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Missoula to Sydney (average of $1,032). Flying from Missoula to Sydney in December is currently the most expensive (average of $1,627). 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

Traveling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missoula to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Sydney flights
Kalispell to Sydney flights

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$924Average$1,494FlexibilityNo cancel feeOn-time69%

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