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$1,244+ 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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SYD
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
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 January 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,258
(American Airlines)
Provider with most accurate pricing for Missoula Johnson-Bell Field-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Sydney Kingsford Smith flights.
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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 January 7, 2026.

This American Airlines deal was found by Cheapflights users on 1/4. 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.
Sat 11/217:00 amMSO - SYD
2 stops30h 25mAmerican Airlines
Sat 11/282:05 pmSYD - MSO
1 stop23h 50mAmerican Airlines
Deal found 1/4$1,244
This American Airlines deal was found by Cheapflights users on 1/6. 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 2/117:00 amMSO - SYD
1 stop29h 55mAmerican Airlines
Tue 3/32:05 pmSYD - MSO
1 stop25h 51mAmerican Airlines
Deal found 1/6$1,258
This American Airlines deal was found by Cheapflights users on 1/5. 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 2/126:15 amMSO - SYD
2 stops31h 10mAmerican Airlines
Wed 3/42:05 pmSYD - MSO
1 stop25h 51mAmerican Airlines
Deal found 1/5$1,262
This Delta deal was found by Cheapflights users on 1/5. 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 2/125:15 amMSO - SYD
2 stops33h 15mDelta
Sat 3/710:40 amSYD - MSO
2 stops30h 50mDelta
Deal found 1/5$1,277
This United Airlines deal was found by Cheapflights users on 1/6. 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 3/82:35 pmMSO - SYD
2 stops25h 30mUnited Airlines
Wed 3/1112:10 pmSYD - MSO
2 stops26h 47mUnited Airlines
Deal found 1/6$1,359
This Delta deal was found by Cheapflights users on 1/4. 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.
Sat 11/215:40 amMSO - SYD
2 stops32h 50mDelta
Sat 11/2810:40 amSYD - MSO
2 stops24h 47mDelta
Deal found 1/4$1,393
This Delta deal was found by Cheapflights users on 1/7. 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 2/125:15 amMSO - SYD
2 stops31h 35mDelta
Wed 3/410:40 amSYD - MSO
2 stops30h 50mDelta
Deal found 1/7$1,490
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/122:34 pmMSO - SYD
2 stops24h 41mUnited Airlines
Sat 3/712:10 pmSYD - MSO
1 stop19h 44mUnited Airlines
Deal found 1/7$1,519

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 January 7, 2026.
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

Wed 2/11

1:21 pm-9:00 am

2 stops25h 39m

Sydney Kingsford Smith

Tue 3/3

11:20 am-9:56 pm

2 stops28h 36m

$1,260

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

6:15 am-7:25 am

2 stops31h 10m

Sydney Kingsford Smith

Sat 3/7

2:05 pm-9:56 pm

1 stop25h 51m

$1,262

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

5:15 am-8:30 am

2 stops33h 15m

Sydney Kingsford Smith

Sat 3/7

10:40 am-11:30 pm

2 stops30h 50m

$1,277

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 3/8

2:35 pm-9:15 am

2 stops25h 40m

Sydney Kingsford Smith

Wed 3/11

12:10 pm-9:57 pm

2 stops26h 47m

$1,359

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

5:15 am-6:50 am

2 stops31h 35m

Sydney Kingsford Smith

Wed 3/4

10:40 am-12:26 pm

2 stops19h 46m

$1,490

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Expedia the most. Expedia 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 January 7, 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
9,138 reviews

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,138 reviews
United Airlines
7.4
Good
9,138 reviews

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 25h 39m. American Airlines provides one of the quickest options available for as low as $1,260. Airlines will cover a distance of 8081 mi.

  • 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
Coogee

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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 January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$878Average$1,494FlexibilityNo cancel feeOn-time69%

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