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$819+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$819
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$1,542
From Montana to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($317 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($101 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 9/1212:50 pmMSO - SYD
2 stops26h 05mAmerican Airlines
Fri 10/39:10 amSYD - MSO
2 stops30h 08mAmerican Airlines
Deal found 7/30$819
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/145:45 amMSO - SYD
2 stops33h 20mAlaska Airlines
Sun 9/219:10 amSYD - MSO
2 stops31h 17mAlaska Airlines
Deal found 7/31$1,034
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/144:17 pmMSO - SYD
1 stop22h 38mUnited Airlines
Sun 9/2110:20 amSYD - MSO
1 stop21h 16mUnited Airlines
Deal found 7/31$1,181
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 10/44:19 pmBZN - SYD
1 stop22h 36mUnited Airlines
Wed 10/810:30 amSYD - BZN
1 stop21h 03mUnited Airlines
Deal found 7/30$1,569
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:55 amBZN - SYD
2 stops26h 40mDelta
Wed 10/810:25 amSYD - BZN
2 stops24h 14mDelta
Deal found 7/29$1,574
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:20 amFCA - SYD
2 stops33h 15mDelta
Mon 10/610:25 amSYD - FCA
2 stops29h 44mDelta
Deal found 7/30$1,574
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 10/24:08 pmFCA - SYD
1 stop22h 47mUnited Airlines
Mon 10/611:20 amSYD - FCA
1 stop21h 07mUnited Airlines
Deal found 7/30$2,062
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:17 pmMSO - SYD
2 stops24h 28mMultiple Airlines
Fri 10/36:00 amSYD - MSO
3 stops31h 36mMultiple Airlines
Deal found 7/30$2,256
This Air New Zealand deal was found by Cheapflights users on 7/30. 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.
Tue 12/1610:49 amBZN - SYD
3 stops27h 56mMultiple Airlines
Wed 12/241:55 pmSYD - BZN
3 stops25h 17mMultiple Airlines
Deal found 7/30$2,424

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 July 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

Fri 9/12

12:50 pm-6:55 am

2 stops26h 05m

Sydney Kingsford Smith

Fri 10/3

9:10 am-11:18 pm

2 stops30h 08m

$819

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 9/14

5:45 am-7:05 am

2 stops33h 20m

Sydney Kingsford Smith

Sun 9/21

9:10 am-12:27 am

2 stops31h 17m

$1,034

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sun 9/14

4:17 pm-6:55 am

1 stop22h 38m

Sydney Kingsford Smith

Sun 9/21

10:20 am-3:36 pm

1 stop21h 16m

$1,181

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Fri 1/16

3:40 pm-6:20 am

1 stop20h 40m

Sydney Kingsford Smith

Fri 1/30

2:00 pm-2:35 pm

1 stop18h 35m

$1,453

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Thu 10/2

5:20 am-6:35 am

2 stops33h 15m

Sydney Kingsford Smith

Mon 10/6

10:25 am-11:09 pm

2 stops29h 44m

$1,574

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sat 10/4

11:55 am-7:35 am

2 stops26h 40m

Sydney Kingsford Smith

Wed 10/8

10:25 am-5:39 pm

2 stops24h 14m

$1,574

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Fri 1/16

10:41 am-8:45 am

3 stops28h 04m

Sydney Kingsford Smith

Fri 1/30

11:45 am-9:07 pm

3 stops27h 22m

$2,024

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Thu 10/2

4:08 pm-6:55 am

1 stop22h 47m

Sydney Kingsford Smith

Mon 10/6

11:20 am-3:27 pm

1 stop21h 07m

$2,062

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Fri 9/12

4:17 pm-8:45 am

2 stops24h 28m

Sydney Kingsford Smith

Fri 10/3

6:00 am-9:36 pm

3 stops31h 36m

$2,256

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 12/16

1:20 pm-8:30 am

3 stops49h 10m

$3,942

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 11 results
1
2

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, February is the cheapest month in which you can book a flight from Montana to Sydney (average of $1,028). Flying from Montana to Sydney in December is currently the most expensive (average of $1,619). 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.

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 July 31, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Montana to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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, February is the cheapest month in which you can book a flight from Montana to Sydney (average of $1,028). Flying from Montana to Sydney in December is currently the most expensive (average of $1,619). 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
Wollongong
Parramatta
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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$890Average$1,428FlexibilityNo cancel feeOn-time69%

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