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Cheap flights from Montana to Sydney from $1,778

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SYD
1 Jul — 8 Jul1
1 adult

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 26 June 2025.

Round-trip from

$1,778

Popular in

December

Cheapest in

August

Average price

$1,726
Alaska Airlines
  • Alaska Airlines
  • 18/10-8/11
  • 4 total stops
  • 63h 49m total
  • Montana to Sydney
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($1,564 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($237 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 26 June 2025.

Sat 18/1005:44MSO - SYD
2 stops33h 21mAlaska Airlines
Sat 8/1111:15SYD - MSO
2 stops30h 58mAlaska Airlines
Deal found 24/6$2,009
Wed 12/1113:58MSO - SYD
2 stops47h 27mAmerican Airlines
Sun 16/1111:15SYD - MSO
2 stops43h 24mAmerican Airlines
Deal found 25/6$2,044
Tue 22/716:23MSO - SYD
1 stop22h 32mUnited Airlines
Sat 9/810:20SYD - MSO
1 stop45h 22mUnited Airlines
Deal found 25/6$3,455
Tue 21/1014:07MSO - SYD
2 stops48h 03mMultiple Airlines
Fri 7/1117:30SYD - MSO
3 stops48h 13mMultiple Airlines
Deal found 25/6$4,224
Sat 25/1005:44MSO - SYD
2 stops21h 01mHawaiian Airlines
Sat 1/1121:40SYD - MSO
3 stops35h 39mHawaiian Airlines
Deal found 25/6$13,054
Fri 24/1014:07MSO - SYD
2 stops35h 03mQatar Airways
Fri 31/1021:40SYD - MSO
2 stops43h 03mQatar Airways
Deal found 25/6$19,172

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 26 June 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

Sat 18/10

05:44-08:05

2 stops33h 21m

Sydney Kingsford Smith

Sat 8/11

11:15-00:13

2 stops30h 58m

$2,009

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 12/11

13:58-07:25

2 stops47h 27m

Sydney Kingsford Smith

Sun 16/11

11:15-12:39

2 stops43h 24m

$2,044

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 22/7

16:23-06:55

1 stop22h 32m

Sydney Kingsford Smith

Sat 9/8

10:20-15:42

1 stop45h 22m

$3,455

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 21/10

14:07-07:10

2 stops48h 03m

Sydney Kingsford Smith

Fri 7/11

17:30-23:43

3 stops48h 13m

$4,224

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Sat 25/10

05:44-19:45

2 stops21h 01m

Sydney Kingsford Smith

Sat 1/11

21:40-16:19

3 stops35h 39m

$13,054

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Fri 24/10

14:07-18:10

2 stops35h 03m

Sydney Kingsford Smith

Fri 31/10

21:40-23:43

2 stops43h 03m

$19,172

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 16/12

14:27-06:20

2 stops45h 53m

$7,745

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Tue 16/12

13:57-06:55

1 stop22h 58m

$13,854

Flights are sorted by cheapest return flights first.

Deals found on 25/6

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 return 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, May is the cheapest month in which you can book a flight from Montana to Sydney (average of $129). Flying from Montana to Sydney in October is currently the most expensive (average of $171). 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 26 June 2025.
Check out reviews from past customers who have flown with Alaska Airlines, Hawaiian Airlines, andQatar Airways from Montana 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.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Hawaiian Airlines
7.8
Good
2,522 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Qatar Airways
7.4
Good
3,595 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,838 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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 7.5 km from Sydney’s city centre.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Montana to Sydney (average of $129). Flying from Montana to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Montana?

Book flights to Montana if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Randwick
Cronulla
Terrigal
Lithgow
Bondi Beach
Leura

Browse thousands of different options on Cheapflights for your next trip

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Yes! Cheapflights helps users easily find flights from Montana to Sydney with no change fees.

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