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$580+ Cheap flights from Montana 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Montana to Sydney

Keep the following information in mind while searching for Montana to Sydney flight deals. Data was last updated September 16, 2025.

Round-trip from

$1,132
(American Airlines)

One-way from

$580
(Trip.com)

Popular in

January

Cheapest in

June

Average price

$1,282
From Montana to Sydney Kingsford Smith
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One-way flight from Montana to Sydney Kingsford Smith
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Highest demand for flights based on searches. 18% potential increase in price ($363 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($94 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Montana to Sydney

Cheapest flights from Montana to Sydney
Explore the most affordable flight options available from Montana to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 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 United Airlines deal was found by Cheapflights users on 9/15. 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 11/1611:50 amSYD - MSO
2 stops43h 43mUnited Airlines
Deal found 9/15$1,307
This Delta deal was found by Cheapflights users on 9/15. 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 10/45:28 pmBZN - SYD
2 stops45h 07mDelta
Wed 10/810:25 amSYD - BZN
2 stops30h 39mDelta
Deal found 9/15$1,355
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:22 amBZN - SYD
2 stops22h 23mAlaska Airlines
Sat 9/209:40 pmSYD - BZN
2 stops36h 48mAlaska Airlines
Deal found 9/14$1,365
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 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.
Thu 9/183:55 pmBZN - SYD
1 stop23h 00mUnited Airlines
Sat 9/2010:20 amSYD - BZN
1 stop20h 33mUnited Airlines
Deal found 9/14$1,571
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/44:13 pmBZN - SYD
1 stop22h 47mUnited Airlines
Wed 10/811:20 amSYD - BZN
2 stops21h 00mUnited Airlines
Deal found 9/15$1,575
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 9/13. 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 9/13$3,567
This Arangrant deal was found by Cheapflights users on 9/15. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:00 pmBZN - SYD
1 stop23h 00mAir New Zealand
Thu 10/1611:50 amSYD - BZN
2 stops43h 43mAir New Zealand
Deal found 9/15$9,929
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/163:55 pmBZN - SYD
1 stop23h 00mUnited Airlines
Thu 10/1610:30 amSYD - BZN
1 stop21h 03mUnited Airlines
Deal found 9/15$10,927

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana 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 16, 2025.
Use the filters below to find and compare flights from Montana to Sydney that are best for you.

Fly from

Montana

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

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sat 10/4

5:28 pm-7:35 am

2 stops45h 07m

Sydney Kingsford Smith

Wed 10/8

10:25 am-12:04 am

2 stops30h 39m

$1,355

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Fri 1/16

7:13 pm-7:45 pm

2 stops30h 32m

Sydney Kingsford Smith

Fri 1/30

9:40 pm-1:03 pm

2 stops33h 23m

$1,422

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Fri 1/16

6:15 am-9:05 am

2 stops32h 50m

Sydney Kingsford Smith

Fri 1/30

11:20 am-12:03 pm

1 stop18h 43m

$1,538

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sat 10/4

4:13 pm-8:00 am

1 stop22h 47m

Sydney Kingsford Smith

Wed 10/8

10:30 am-2:33 pm

1 stop21h 03m

$1,571

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Sun 11/2

2:07 pm-9:00 am

2 stops24h 53m

$580

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sat 10/4

4:13 pm-8:00 am

1 stop22h 47m

$756

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Thu 10/2

4:19 pm-6:55 am

1 stop22h 36m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 16 results
1
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Best time to book a flight from Montana to Sydney

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

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

Currently, March is the cheapest month in which you can book a flight from Montana to Sydney (average of $1,032). Flying from Montana 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.

How much does it cost to fly round-trip from Montana to Sydney?

Related info for your journey

Find useful and relevant information for your journey from Montana to Sydney. 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 into for flights to Sydney from Montana?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Montana. Kingsford Smith is conveniently located just 4.6 mi from Sydney’s city center.

  • How long is the flight from Montana to Sydney?

    A quick flight from Montana to Sydney can take about 24h 24m. American Airlines provides one of the quickest options available for as low as $1,132. Montana and Sydney are separated by a distance of 8081 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Montana to Sydney?

    The most popular route from Montana to Sydney is Missoula Johnson-Bell Field - Sydney Kingsford Smith. You may also consider Bozeman Gallatin Field - Sydney Kingsford Smith or Kalispell Glacier Park - Sydney Kingsford Smith.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montana 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 Montana to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Montana to Sydney (average of $1,032). Flying from Montana 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

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Top airline flying from Montana to Sydney

Discover the top airline that operate flights from Montana 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$890Average$1,449FlexibilityNo cancel feeOn-time69%

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