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$1,166+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
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Cheap 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 February 7, 2026.

This American Airlines deal was found by Cheapflights users on 2/4. 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.
Wed 2/117:00 am
MSO
-
SYD
1 stop29h 55m
American Airlines
Tue 3/32:05 pm
SYD
-
MSO
1 stop25h 51m
American Airlines
Deal found 2/4$1,166
This American Airlines deal was found by Cheapflights users on 2/6. 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.
Mon 3/21:47 pm
BZN
-
SYD
2 stops25h 13m
American Airlines
Mon 3/911:20 am
SYD
-
BZN
2 stops27h 18m
American Airlines
Deal found 2/6$1,206
This American Airlines deal was found by Cheapflights users on 2/5. 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.
Sun 5/101:41 pm
BZN
-
SYD
2 stops25h 49m
American Airlines
Mon 5/2512:00 pm
SYD
-
BZN
1 stop24h 43m
American Airlines
Deal found 2/5$1,209
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Thu 2/126:15 am
MSO
-
SYD
1 stop30h 40m
American Airlines
Wed 3/42:05 pm
SYD
-
MSO
1 stop25h 51m
American Airlines
Deal found 2/4$1,213
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Fri 3/133:36 pm
BZN
-
SYD
1 stop22h 19m
American Airlines
Mon 3/1611:20 am
SYD
-
BZN
2 stops27h 18m
American Airlines
Deal found 2/4$1,217
This United Airlines deal was found by Cheapflights users on 2/6. 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 3/11:05 pm
BZN
-
SYD
1 stop26h 00m
United Airlines
Wed 3/1110:25 am
SYD
-
BZN
1 stop18h 49m
United Airlines
Deal found 2/6$1,220
This American Airlines deal was found by Cheapflights users on 2/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/301:20 pm
MSO
-
SYD
2 stops25h 45m
American Airlines
Mon 4/68:45 am
SYD
-
MSO
2 stops29h 11m
American Airlines
Deal found 2/7$1,222
This United Airlines deal was found by Cheapflights users on 2/4. 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 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 45m
United Airlines
Wed 3/1112:10 pm
SYD
-
MSO
2 stops26h 47m
United Airlines
Deal found 2/4$1,223
This United Airlines deal was found by Cheapflights users on 2/6. 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.
Sat 2/282:16 pm
BZN
-
SYD
2 stops48h 49m
United Airlines
Wed 3/412:10 pm
SYD
-
BZN
1 stop20h 11m
United Airlines
Deal found 2/6$1,243
This American Airlines deal was found by Cheapflights users on 2/4. 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 5/21:43 pm
BZN
-
SYD
2 stops25h 22m
American Airlines
Fri 5/158:15 pm
SYD
-
BZN
2 stops32h 36m
American Airlines
Deal found 2/4$1,265
This American Airlines deal was found by Cheapflights users on 2/4. 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 5/21:43 pm
BZN
-
SYD
1 stop25h 12m
American Airlines
Thu 5/145:50 pm
SYD
-
BZN
2 stops35h 01m
American Airlines
Deal found 2/4$1,266
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:17 pm
BZN
-
SYD
1 stop22h 38m
United Airlines
Fri 6/1210:20 am
SYD
-
BZN
1 stop21h 01m
United Airlines
Deal found 2/4$1,269

Find flight deals from Montana to Sydney

Keep the following information in mind while searching for Montana to Sydney flight deals. Data was last updated February 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,206
(American Airlines)

Popular in

August

Cheapest in

June

Average price

$1,258
Provider with most accurate pricing for Bozeman Gallatin Field-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Sydney Kingsford Smith flights.
Search Deals
From Montana to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($222 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($75 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 7, 2026.
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

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 3/2

1:47 pm-6:55 am

1 stop23h 08m

Sydney Kingsford Smith

Mon 3/9

11:20 am-9:38 pm

2 stops27h 18m

$1,208

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sun 5/10

1:41 pm-7:30 am

2 stops25h 49m

Sydney Kingsford Smith

Mon 5/25

12:00 pm-8:43 pm

1 stop24h 43m

$1,209

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Fri 3/13

1:47 pm-7:25 am

2 stops24h 38m

Sydney Kingsford Smith

Mon 3/16

11:20 am-9:38 pm

2 stops27h 18m

$1,217

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Mon 3/2

1:05 pm-9:05 am

1 stop26h 00m

Sydney Kingsford Smith

Mon 3/9

11:05 am-12:14 pm

1 stop18h 09m

$1,220

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sun 3/1

7:45 am-6:20 am

1 stop28h 35m

Sydney Kingsford Smith

Wed 3/11

10:25 am-12:14 pm

1 stop18h 49m

$1,220

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sun 5/10

4:18 pm-6:55 am

1 stop22h 37m

Sydney Kingsford Smith

Mon 5/25

10:20 am-3:21 pm

1 stop21h 01m

$1,220

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Mon 3/30

1:20 pm-8:05 am

2 stops25h 45m

Sydney Kingsford Smith

Mon 4/6

8:45 am-9:56 pm

2 stops29h 11m

$1,222

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 3/8

6:15 am-7:00 am

2 stops31h 45m

Sydney Kingsford Smith

Wed 3/11

12:10 pm-9:57 pm

2 stops26h 47m

$1,223

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sun 3/1

5:30 am-6:50 am

2 stops31h 20m

Sydney Kingsford Smith

Wed 3/11

9:40 am-5:46 pm

2 stops25h 06m

$1,224

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Sun 3/8

6:00 am-7:00 am

2 stops32h 00m

Sydney Kingsford Smith

Wed 3/11

11:50 am-9:57 pm

2 stops27h 07m

$2,024

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 11 results
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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 August is currently the most expensive (average of $2,292). 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.

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 23h 08m. American Airlines provides one of the quickest options available for as low as $1,208. Montana and Sydney are separated by a distance of 8183 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 August is currently the most expensive (average of $2,292). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$878Average$1,538FlexibilityNo cancel feeOn-time69%

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