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$1,168+ Cheap flights from Montana 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
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 October 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,168
(Delta)

Popular in

January

Cheapest in

June

Average price

$1,404
Provider with most accurate pricing for Bozeman Gallatin Field-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Sydney Kingsford Smith flights.
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From Montana to Sydney Kingsford Smith
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Highest demand for flights based on searches. 16% potential increase in price ($298 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($99 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 31, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 11/121:13 pmMSO - SYD
2 stops25h 17mDelta
Sun 11/1610:40 amSYD - MSO
2 stops31h 39mDelta
Deal found 10/28$1,168
This Delta deal was found by Cheapflights users on 10/28. 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 11/135:30 amBZN - SYD
2 stops33h 00mDelta
Mon 11/1710:40 amSYD - BZN
2 stops25h 14mDelta
Deal found 10/28$1,218
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/174:00 pmBZN - SYD
1 stop23h 15mUnited Airlines
Mon 11/2411:20 amSYD - BZN
1 stop19h 11mUnited Airlines
Deal found 10/30$1,264
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/134:00 pmBZN - SYD
1 stop23h 15mUnited Airlines
Mon 11/1711:20 amSYD - BZN
1 stop19h 11mUnited Airlines
Deal found 10/29$1,313
This Air New Zealand deal was found by Cheapflights users on 10/30. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:47 amBZN - SYD
3 stops27h 58mMultiple Airlines
Mon 11/2411:45 amSYD - BZN
3 stops27h 55mMultiple Airlines
Deal found 10/30$1,812
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/146:15 amMSO - SYD
2 stops32h 50mUnited Airlines
Sun 12/212:00 pmSYD - MSO
2 stops25h 41mUnited Airlines
Deal found 10/30$1,869
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/134:30 pmBZN - SYD
2 stops43h 50mUnited Airlines
Sat 12/202:00 pmSYD - BZN
1 stop19h 24mUnited Airlines
Deal found 10/28$2,037
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/147:00 amMSO - SYD
1 stop29h 55mAmerican Airlines
Sun 12/2111:20 amSYD - MSO
2 stops28h 04mAmerican Airlines
Deal found 10/30$2,450
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:30 amMSO - SYD
2 stops31h 55mMultiple Airlines
Tue 11/45:45 pmSYD - MSO
2 stops23h 58mMultiple Airlines
Deal found 10/29$2,776
This Air New Zealand deal was found by Cheapflights users on 10/28. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:49 amBZN - SYD
3 stops29h 41mMultiple Airlines
Sat 12/201:55 pmSYD - BZN
3 stops25h 13mMultiple Airlines
Deal found 10/28$3,186
This American Airlines deal was found by Cheapflights users on 10/30. 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 10/30$3,566
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 12/137:00 amBZN - SYD
3 stops30h 25mAlaska Airlines
Sat 12/205:45 pmSYD - BZN
2 stops24h 14mAlaska Airlines
Deal found 10/28$4,173

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 October 31, 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

Wed 11/12

1:13 pm-8:30 am

2 stops25h 17m

Sydney Kingsford Smith

Sun 11/16

10:40 am-12:19 am

2 stops31h 39m

$1,168

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 2/11

6:00 am-6:20 am

2 stops30h 20m

Sydney Kingsford Smith

Tue 3/3

11:50 am-9:57 pm

2 stops28h 07m

$1,168

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Tue 2/3

5:24 am-6:50 am

2 stops31h 26m

Sydney Kingsford Smith

Tue 2/24

10:40 am-5:46 pm

2 stops25h 06m

$1,168

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

5:30 am-6:50 am

2 stops31h 20m

Sydney Kingsford Smith

Wed 3/4

10:40 am-5:27 pm

2 stops24h 47m

$1,218

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Thu 11/13

5:30 am-8:30 am

2 stops33h 00m

Sydney Kingsford Smith

Mon 11/17

10:40 am-5:54 pm

2 stops25h 14m

$1,218

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

7:01 am-9:00 am

2 stops31h 59m

Sydney Kingsford Smith

Wed 3/4

2:05 pm-9:45 pm

1 stop25h 40m

$1,220

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

7:01 am-9:00 am

2 stops31h 59m

Sydney Kingsford Smith

Sat 3/7

2:05 pm-9:45 pm

1 stop25h 40m

$1,220

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 11/17

4:00 pm-9:15 am

1 stop23h 15m

Sydney Kingsford Smith

Mon 11/24

11:20 am-12:31 pm

1 stop19h 11m

$1,264

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

12:50 pm-6:50 am

2 stops24h 00m

Sydney Kingsford Smith

Sat 3/7

2:15 pm-11:21 pm

2 stops27h 06m

$1,268

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 2/12

6:15 am-9:05 am

2 stops32h 50m

Sydney Kingsford Smith

Sat 3/7

12:10 pm-2:05 pm

1 stop19h 55m

$1,269

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 15 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, June is the cheapest month in which you can book a flight from Montana to Sydney (average of $866). Flying from Montana to Sydney in January is currently the most expensive (average of $1,665). 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 25h 17m. Delta provides one of the quickest options available for as low as $1,168. 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 Bozeman Gallatin Field - Sydney Kingsford Smith. You may also consider Missoula Johnson-Bell 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, June is the cheapest month in which you can book a flight from Montana to Sydney (average of $866). Flying from Montana to Sydney in January is currently the most expensive (average of $1,665). 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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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 October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$878Average$1,449FlexibilityNo cancel feeOn-time69%

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