What is the cheapest airline that flies from Montana to Australia?

Alaska Airlines and American Airlines are the most popular carriers operating from Montana to Australia

When did momondo last update prices for flights from Montana to Australia?

Prices for flights from Montana to Australia are updated daily.

How old do you have to be to fly from Montana to Australia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$1,786 Cheap Flights from Montana to Australia in 2025/26

1 adult

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Find the cheapest flights from Montana to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

05:25 - 08:30MSO-SYD

33h 05m2 stops

10:40 - 17:34SYD-MSO

24h 54m2 stops

$1,786Delta

Find Deal

Wed, 12 Nov - Sun, 16 Nov

06:15 - 06:30HLN-BNE

32h 15m2 stops

10:40 - 20:59BNE-HLN

26h 19m2 stops

$1,854United Airlines

Find Deal

Tue, 17 Mar - Sat, 21 Mar

06:15 - 06:30HLN-BNE

32h 15m2 stops

10:40 - 20:59BNE-HLN

26h 19m2 stops

$1,856United Airlines

Find Deal

Tue, 17 Mar - Sat, 21 Mar

05:05 - 06:50MSO-SYD

31h 45m2 stops

10:40 - 00:29SYD-MSO

31h 49m2 stops

$1,862Delta

Find Deal

Thu, 12 Feb - Wed, 4 Mar

12:44 - 06:50MSO-SYD

24h 06m2 stops

14:15 - 23:25SYD-MSO

27h 10m2 stops

$1,938Delta

Find Deal

Thu, 12 Feb - Sat, 7 Mar

13:21 - 09:00MSO-SYD

25h 39m2 stops

14:05 - 21:45SYD-MSO

25h 40m1 stop

$2,138American Airlines

Find Deal

Wed, 11 Feb - Tue, 3 Mar

07:01 - 09:00MSO-SYD

31h 59m2 stops

14:05 - 21:45SYD-MSO

25h 40m1 stop

$2,144American Airlines

Find Deal

Thu, 12 Feb - Wed, 4 Mar

18:30 - 19:45MSO-SYD

33h 15m3 stops

21:40 - 13:43SYD-MSO

32h 03m2 stops

$2,511Alaska Airlines

Find Deal

Fri, 17 Apr - Thu, 23 Apr

13:47 - 06:30BZN-BNE

23h 43m1 stop

08:20 - 12:55BNE-BZN

45h 35m2 stops

$2,806Qantas Airways

Find Deal

Sat, 28 Feb - Wed, 4 Mar

05:20 - 19:45MSO-SYD

20h 25m2 stops

21:40 - 15:33SYD-MSO

35h 53m3 stops

$5,101Hawaiian Airlines

Find Deal

Fri, 19 Dec - Sun, 28 Dec

Delta flights from Montana to Australia

Our best Delta deals on Montana to Australia flight tickets

Delta

12 Nov

MSO05:25Missoula Johnson-Bell Field

33h 05m

2 stops

SYD08:30Sydney Kingsford Smith

16 Nov

SYD10:40Sydney Kingsford Smith

24h 54m

2 stops

MSO17:34Missoula Johnson-Bell Field

$1,786

Find similar

Delta

12 Feb

MSO05:05Missoula Johnson-Bell Field

31h 45m

2 stops

SYD06:50Sydney Kingsford Smith

4 Mar

SYD10:40Sydney Kingsford Smith

31h 49m

2 stops

MSO00:29Missoula Johnson-Bell Field

$1,862

Find similar

Delta

12 Feb

MSO05:05Missoula Johnson-Bell Field

31h 45m

2 stops

SYD06:50Sydney Kingsford Smith

7 Mar

SYD10:40Sydney Kingsford Smith

30h 45m

2 stops

MSO23:25Missoula Johnson-Bell Field

$1,938

Find similar

American Airlines flights from Montana to Australia

Our best American Airlines deals on Montana to Australia flight tickets

American Airlines

11 Feb

MSO13:21Missoula Johnson-Bell Field

25h 39m

2 stops

SYD09:00Sydney Kingsford Smith

3 Mar

SYD14:05Sydney Kingsford Smith

25h 40m

1 stop

MSO21:45Missoula Johnson-Bell Field

$2,138

Find similar

American Airlines

12 Feb

MSO07:01Missoula Johnson-Bell Field

31h 59m

2 stops

SYD09:00Sydney Kingsford Smith

4 Mar

SYD14:05Sydney Kingsford Smith

25h 40m

1 stop

MSO21:45Missoula Johnson-Bell Field

$2,144

Find similar

American Airlines

17 Apr

MSO07:00Missoula Johnson-Bell Field

31h 55m

1 stop

SYD06:55Sydney Kingsford Smith

23 Apr

SYD09:10Sydney Kingsford Smith

28h 19m

2 stops

MSO21:29Missoula Johnson-Bell Field

$3,916

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 12/11

05:25-08:30

2 stops33h 05m

Sydney Kingsford Smith

Sun 16/11

10:40-17:34

2 stops24h 54m

$1,786

HelenaBrisbane

HLN - BNE

HLNBNE

Helena

Tue 17/3

06:15-06:30

2 stops32h 15m

Brisbane

Sat 21/3

10:40-20:59

2 stops26h 19m

$1,854

HelenaBrisbane

HLN - BNE

HLNBNE

Helena

Tue 17/3

06:15-06:30

2 stops32h 15m

Brisbane

Sat 21/3

10:40-20:59

2 stops26h 19m

$1,856

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 12/2

05:05-06:50

2 stops31h 45m

Sydney Kingsford Smith

Wed 4/3

10:40-00:29

2 stops31h 49m

$1,862

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 12/2

12:44-06:50

2 stops24h 06m

Sydney Kingsford Smith

Sat 7/3

14:15-23:25

2 stops27h 10m

$1,938

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 11/2

13:21-09:00

2 stops25h 39m

Sydney Kingsford Smith

Tue 3/3

14:05-21:45

1 stop25h 40m

$2,138

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 12/2

07:01-09:00

2 stops31h 59m

Sydney Kingsford Smith

Wed 4/3

14:05-21:45

1 stop25h 40m

$2,144

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Fri 17/4

18:30-19:45

3 stops33h 15m

Sydney Kingsford Smith

Thu 23/4

21:40-13:43

2 stops32h 03m

$2,511

BozemanBrisbane

BZN - BNE

BZNBNE

Bozeman Gallatin Field

Sat 28/2

13:47-06:30

1 stop23h 43m

Brisbane

Wed 4/3

08:20-12:55

2 stops45h 35m

$2,806

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Fri 19/12

05:20-19:45

2 stops20h 25m

Sydney Kingsford Smith

Sun 28/12

21:40-15:33

3 stops35h 53m

$5,101

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montana to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Australia?

In general, June is the cheapest month to fly from Montana to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,714. If you don’t want to visit Australia in June, then you should wait until March to fly from Montana, when ticket prices are also cheap, with an average price of $1,824.

Cheap Montana to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Australia

Direct flights	None

There are no direct flights from Montana to Australia. There are no popular flight routes from Montana to Australia.

Search flight deals

When did momondo last update prices for flights from Montana to Australia?
Prices for flights from Montana to Australia are updated daily.
How old do you have to be to fly from Montana to Australia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Australia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montana to Australia. momondo saves you time and could save you money on your trip.

Can I find flights from Montana to Australia with flexible booking policies on momondo?

Yes. All flights to Australia from Montana on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Montana to Australia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Australia from Montana.

I’m not ready to book a flight from Montana to Australia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Montana to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.