How long is the flight from Montana to Australia?

Flight times from Montana to Australia vary, but if you’re flying out of Bozeman and flying into Sydney (one of the most popular routes), then the duration is 21h 59m on average. Another popular route from Montana to Australia is flying from Missoula to Sydney, which will take roughly 22h 40m. Keep in mind that layovers or delays could extend your travel time.

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

Delta is the most popular carrier 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 many operators does momondo search for flights from Montana to Australia?

As of July 2026, there is 1 operator available to choose from for flights from Montana to Australia.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 license 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.

$564 Cheap Flights from Montana to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montana to Australia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:03 pm - 6:25 am

FCA

SYD

24h 22m

2 stops

6:45 pm - 1:27 pm

SYD

FCA

35h 42m

3 stops

$1,148Multiple Airlines

Fri, Oct 9 - Thu, Oct 22

4:25 pm - 6:55 am

BZN

SYD

22h 30m

1 stop

9:30 am - 2:13 pm

SYD

BZN

20h 43m

1 stop

$1,186United Airlines

Sun, Aug 16 - Sun, Aug 23

1:35 pm - 7:30 am

BZN

SYD

25h 55m

2 stops

9:10 am - 8:37 pm

SYD

BZN

27h 27m

2 stops

$1,187American Airlines

Sun, Aug 16 - Sun, Aug 23

5:52 pm - 7:05 am

MSO

SYD

21h 13m

1 stop

5:50 pm - 10:59 pm

SYD

MSO

21h 09m

2 stops

$1,278Multiple Airlines

Thu, Aug 13 - Thu, Aug 20

5:52 pm - 7:05 am

MSO

SYD

21h 13m

1 stop

9:10 am - 5:20 pm

SYD

MSO

24h 10m

1 stop

$1,283American Airlines

Thu, Aug 13 - Thu, Aug 20

2:31 pm - 7:00 am

FCA

SYD

24h 29m

2 stops

9:30 am - 12:28 pm

SYD

FCA

18h 58m

1 stop

$1,286United Airlines

Fri, Aug 14 - Fri, Aug 21

5:30 am - 6:50 am

MSO

SYD

33h 20m

2 stops

9:15 am - 12:18 am

SYD

MSO

31h 03m

2 stops

$1,290Delta

Thu, Aug 13 - Thu, Aug 20

1:34 pm - 6:50 am

FCA

SYD

25h 16m

2 stops

9:15 am - 10:53 pm

SYD

FCA

29h 38m

2 stops

$1,290Delta

Fri, Aug 14 - Fri, Aug 21

6:15 am - 9:20 am

MSO

SYD

33h 05m

2 stops

11:20 am - 4:10 pm

SYD

MSO

22h 50m

2 stops

$1,294Air New Zealand

Wed, Dec 2 - Wed, Dec 16

2:29 pm - 9:05 am

FCA

SYD

24h 36m

2 stops

11:50 am - 9:30 pm

SYD

FCA

27h 40m

2 stops

$1,309Air New Zealand

Mon, Dec 7 - Tue, Dec 15

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United Airlines flights from Montana to Australia

Our best United Airlines deals on Montana to Australia flight tickets

United Airlines

Aug 16

BZN4:25 pmBozeman Gallatin Field

22h 30m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 23

SYD9:30 amSydney Kingsford Smith

20h 43m

1 stop

BZN2:13 pmBozeman Gallatin Field

$1,186

United Airlines

Aug 14

FCA2:31 pmKalispell Glacier Park

24h 29m

2 stops

SYD7:00 amSydney Kingsford Smith

Aug 21

SYD9:30 amSydney Kingsford Smith

18h 58m

1 stop

FCA12:28 pmKalispell Glacier Park

$1,286

United Airlines

Dec 8

BZN1:30 pmBozeman Gallatin Field

25h 35m

1 stop

SYD9:05 amSydney Kingsford Smith

Dec 30

SYD11:20 amSydney Kingsford Smith

18h 46m

1 stop

BZN12:06 pmBozeman Gallatin Field

$1,306

American Airlines flights from Montana to Australia

Our best American Airlines deals on Montana to Australia flight tickets

American Airlines

Aug 16

BZN1:35 pmBozeman Gallatin Field

25h 55m

2 stops

SYD7:30 amSydney Kingsford Smith

Aug 23

SYD9:10 amSydney Kingsford Smith

27h 27m

2 stops

BZN8:37 pmBozeman Gallatin Field

$1,187

American Airlines

Aug 13

MSO5:52 pmMissoula Johnson-Bell Field

21h 13m

1 stop

SYD7:05 amSydney Kingsford Smith

Aug 20

SYD9:10 amSydney Kingsford Smith

24h 10m

1 stop

MSO5:20 pmMissoula Johnson-Bell Field

$1,283

American Airlines

Nov 11

MSO7:00 amMissoula Johnson-Bell Field

29h 25m

2 stops

SYD6:25 amSydney Kingsford Smith

Dec 2

SYD2:05 pmSydney Kingsford Smith

24h 28m

1 stop

MSO8:33 pmMissoula Johnson-Bell Field

$1,307

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Fri 10/9

1:03 pm-6:25 am

2 stops24h 22m

Sydney Kingsford Smith

Thu 10/22

6:45 pm-1:27 pm

3 stops35h 42m

$1,148

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sun 8/16

4:25 pm-6:55 am

1 stop22h 30m

Sydney Kingsford Smith

Sun 8/23

9:30 am-2:13 pm

1 stop20h 43m

$1,186

BozemanSydney

BZN - SYD

BZNSYD

Bozeman Gallatin Field

Sun 8/16

1:35 pm-7:30 am

2 stops25h 55m

Sydney Kingsford Smith

Sun 8/23

9:10 am-8:37 pm

2 stops27h 27m

$1,187

Quickest round-trip

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 8/13

5:52 pm-7:05 am

1 stop21h 13m

Sydney Kingsford Smith

Thu 8/20

5:50 pm-10:59 pm

2 stops21h 09m

$1,278

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 8/13

5:52 pm-7:05 am

1 stop21h 13m

Sydney Kingsford Smith

Thu 8/20

9:10 am-5:20 pm

1 stop24h 10m

$1,283

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Fri 8/14

2:31 pm-7:00 am

2 stops24h 29m

Sydney Kingsford Smith

Fri 8/21

9:30 am-12:28 pm

1 stop18h 58m

$1,286

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Thu 8/13

5:30 am-6:50 am

2 stops33h 20m

Sydney Kingsford Smith

Thu 8/20

9:15 am-12:18 am

2 stops31h 03m

$1,290

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Fri 8/14

1:34 pm-6:50 am

2 stops25h 16m

Sydney Kingsford Smith

Fri 8/21

9:15 am-10:53 pm

2 stops29h 38m

$1,290

MissoulaSydney

MSO - SYD

MSOSYD

Missoula Johnson-Bell Field

Wed 12/2

6:15 am-9:20 am

2 stops33h 05m

Sydney Kingsford Smith

Wed 12/16

11:20 am-4:10 pm

2 stops22h 50m

$1,294

KalispellSydney

FCA - SYD

FCASYD

Kalispell Glacier Park

Mon 12/7

2:29 pm-9:05 am

2 stops24h 36m

Sydney Kingsford Smith

Tue 12/15

11:50 am-9:30 pm

2 stops27h 40m

$1,309

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

Other information

Can stopping save me money on Montana to Australia flights?

You could potentially save up to 3% on your flight if you consider stops on a Montana to Australia flight.

Cheap Montana to Australia flight deals and tips

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

Fastest flight time	21h 59m
Direct flights	None

The fastest flight from Montana to Australia takes 21h 59m

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

Search flight deals

Frequently asked questions about flying 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 many operators does momondo search for flights from Montana to Australia?
As of July 2026, there is 1 operator available to choose from for flights from Montana to Australia.
How old do you have to be to fly from Montana to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 license 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.

Best airlines flying from Montana to Australia

Compare and see reviews for airlines that fly from Montana to Australia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,215	Free Cancellation	Rating 7.4 9,930 reviews		Search United Airlines flights

Why use momondo?

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

Finding the right flight to Australia from Montana is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Montana to Australia flights to just show those with flexible booking policies.

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 simply researching potential flights to Australia, momondo offers a useful price alert feature which will track prices for flights to Australia from Montana and alert you when they change.