How long is the flight from Montana to Australia?

Flight times from Montana to Australia vary, but if you’re flying out of Missoula and flying into Sydney (one of the most popular routes), then the duration is 22h 44m on average. Another popular route from Montana to Australia is flying from Bozeman to Sydney, which will take roughly 23h 13m. Keep in mind that layovers or delays could extend your travel time.

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

Delta and Qantas Airways 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 many operators does momondo search for flights from Montana to Australia?

As of August 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.

$608 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:28 pm - 8:35 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

26h 07m2 stops Los Angeles Auckland Intl

11:50 am - 12:22 pmSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

42h 32m2 stops Auckland Intl Los Angeles

$1,140Air New Zealand

Mon, Oct 26 - Mon, Nov 2

7:41 am - 6:25 amFCA Kalispell Glacier Park-SYD Sydney Kingsford Smith

28h 44m3 stops Seattle/Tacoma Intl Portland Los Angeles

11:05 am - 11:59 pmSYD Sydney Kingsford Smith-FCA Kalispell Glacier Park

30h 54m3 stops Brisbane Los Angeles Seattle/Tacoma Intl

$1,152Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

12:55 pm - 6:25 amFCA Kalispell Glacier Park-SYD Sydney Kingsford Smith

23h 30m2 stops Portland Los Angeles

11:05 am - 11:59 pmSYD Sydney Kingsford Smith-FCA Kalispell Glacier Park

30h 54m3 stops Brisbane Los Angeles Seattle/Tacoma Intl

$1,152Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

5:00 pm - 5:50 amHLN Helena-BNE Brisbane

43h 50m2 stops Seattle/Tacoma Intl Los Angeles

1:10 pm - 4:23 pmBNE Brisbane-HLN Helena

44h 13m2 stops Los Angeles Seattle/Tacoma Intl

$1,152Multiple Airlines

Sat, Jan 30 - Wed, Feb 3

7:00 am - 7:30 amHLN Helena-BNE Brisbane

31h 30m2 stops Denver Intl San Francisco

11:40 am - 8:59 pmBNE Brisbane-HLN Helena

26h 19m2 stops San Francisco Denver Intl

$1,181United Airlines

Sat, Jan 30 - Wed, Feb 3

7:00 am - 7:30 amHLN Helena-BNE Brisbane

31h 30m2 stops Denver Intl San Francisco

11:40 am - 8:59 pmBNE Brisbane-HLN Helena

26h 19m2 stops San Francisco Denver Intl

$1,182United Airlines

Sat, Jan 30 - Wed, Feb 3

3:40 pm - 10:35 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

24h 55m2 stops San Francisco Auckland Intl

11:50 am - 11:59 amSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

42h 09m2 stops Auckland Intl Los Angeles

$1,186Air New Zealand

Tue, Feb 2 - Thu, Feb 18

3:40 pm - 10:35 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

24h 55m2 stops San Francisco Auckland Intl

11:50 am - 12:01 pmSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

42h 11m2 stops Auckland Intl Los Angeles

$1,188Air New Zealand

Tue, Feb 2 - Thu, Feb 18

3:40 pm - 10:35 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

24h 55m2 stops San Francisco Auckland Intl

11:50 am - 12:01 pmSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

42h 11m2 stops Auckland Intl Los Angeles

$1,198Air New Zealand

Tue, Feb 2 - Thu, Feb 18

7:41 am - 6:25 amFCA Kalispell Glacier Park-SYD Sydney Kingsford Smith

28h 44m2 stops Seattle/Tacoma Intl Los Angeles

11:20 am - 5:54 pmSYD Sydney Kingsford Smith-FCA Kalispell Glacier Park

24h 34m2 stops Los Angeles Seattle/Tacoma Intl

$1,292Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

Cheap last minute flights

Enter your travel dates to find the best prices.

4:11 pm - 6:55 amMSO Missoula Johnson-Bell Field-SYD Sydney Kingsford Smith

22h 44m1 stop San Francisco

9:30 am - 9:57 amSYD Sydney Kingsford Smith-MSO Missoula Johnson-Bell Field

40h 27m2 stops Los Angeles Denver Intl

$1,663United Airlines

Mon, Aug 24 - Mon, Aug 31

4:11 pm - 6:55 amMSO Missoula Johnson-Bell Field-SYD Sydney Kingsford Smith

22h 44m1 stop San Francisco

10:20 am - 3:24 pmSYD Sydney Kingsford Smith-MSO Missoula Johnson-Bell Field

21h 04m1 stop San Francisco

$1,719United Airlines

Mon, Aug 24 - Mon, Aug 31

7:15 am - 8:40 amMSO Missoula Johnson-Bell Field-SYD Sydney Kingsford Smith

33h 25m2 stops Seattle/Tacoma Intl Hong Kong Intl

6:50 pm - 3:17 pmSYD Sydney Kingsford Smith-MSO Missoula Johnson-Bell Field

36h 27m3 stops Perth Hong Kong Intl Seattle/Tacoma Intl

$1,978Multiple Airlines

Mon, Aug 24 - Mon, Aug 31

7:03 am - 6:25 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

31h 22m2 stops Seattle/Tacoma Intl San Francisco

8:45 pm - 9:42 amSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

28h 57m2 stops Honolulu Seattle/Tacoma Intl

$2,135Multiple Airlines

Sun, Aug 23 - Tue, Aug 25

7:03 am - 6:25 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

31h 22m2 stops Seattle/Tacoma Intl San Francisco

8:45 pm - 9:42 amSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

28h 57m3 stops Honolulu Portland Seattle/Tacoma Intl

$2,196Multiple Airlines

Sun, Aug 23 - Tue, Aug 25

4:15 pm - 6:55 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

22h 40m1 stop Dallas/Fort Worth

9:25 pm - 1:05 pmSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

31h 40m2 stops San Francisco Phoenix Sky Harbor Intl

$2,411American Airlines

Sun, Aug 23 - Tue, Aug 25

4:15 pm - 6:55 amBZN Bozeman Gallatin Field-SYD Sydney Kingsford Smith

22h 40m1 stop Dallas/Fort Worth

9:25 pm - 3:19 pmSYD Sydney Kingsford Smith-BZN Bozeman Gallatin Field

33h 54m1 stop San Francisco

$3,298Qantas Airways

Sun, Aug 23 - Tue, Aug 25

2:05 pm - 7:30 amMSO Missoula Johnson-Bell Field-SYD Sydney Kingsford Smith

25h 25m3 stops Seattle/Tacoma Intl San Francisco Los Angeles

6:25 am - 10:59 pmSYD Sydney Kingsford Smith-MSO Missoula Johnson-Bell Field

32h 34m3 stops Melbourne Los Angeles Seattle/Tacoma Intl

$3,811Multiple Airlines

Mon, Aug 24 - Mon, Aug 31

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American Airlines flights from Montana to Australia

Our best American Airlines deals on Montana to Australia flight tickets

American Airlines

Jan 20

MSO7:00 amMissoula Johnson-Bell Field

29h 25m

2 stops

SYD6:25 amSydney Kingsford Smith

Jun 6

SYD9:10 amSydney Kingsford Smith

23h 03m

1 stop

MSO4:13 pmMissoula Johnson-Bell Field

$1,359

American Airlines

Jan 20

MSO7:00 amMissoula Johnson-Bell Field

29h 25m

2 stops

SYD6:25 amSydney Kingsford Smith

Jun 6

SYD9:10 amSydney Kingsford Smith

23h 03m

1 stop

MSO4:13 pmMissoula Johnson-Bell Field

$1,360

American Airlines

Jan 20

MSO7:00 amMissoula Johnson-Bell Field

29h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 6

SYD10:20 amSydney Kingsford Smith

21h 53m

1 stop

MSO4:13 pmMissoula Johnson-Bell Field

$1,505

Delta flights from Montana to Australia

Our best Delta deals on Montana to Australia flight tickets

Delta

Jan 20

MSO5:40 amMissoula Johnson-Bell Field

32h 50m

2 stops

SYD8:30 amSydney Kingsford Smith

Jun 3

SYD9:15 amSydney Kingsford Smith

31h 16m

2 stops

MSO12:31 amMissoula Johnson-Bell Field

$1,363

Delta

Oct 10

FCA6:13 pmKalispell Glacier Park

20h 37m

2 stops

SYD7:50 amSydney Kingsford Smith

Oct 23

SYD10:15 amSydney Kingsford Smith

29h 42m

2 stops

FCA10:57 pmKalispell Glacier Park

$2,044

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanSydney

BZN Bozeman Gallatin Field - SYD Sydney Kingsford Smith

BZNSYD

Bozeman Gallatin Field

Mon 10/26

1:28 pm-8:35 am

2 stops26h 07m

Sydney Kingsford Smith

Mon 11/2

11:50 am-12:22 pm

2 stops42h 32m

$1,140

KalispellSydney

FCA Kalispell Glacier Park - SYD Sydney Kingsford Smith

FCASYD

Kalispell Glacier Park

Wed 11/4

7:41 am-6:25 am

3 stops28h 44m

Sydney Kingsford Smith

Wed 11/11

11:05 am-11:59 pm

3 stops30h 54m

$1,152

KalispellSydney

FCA Kalispell Glacier Park - SYD Sydney Kingsford Smith

FCASYD

Kalispell Glacier Park

Wed 11/4

12:55 pm-6:25 am

2 stops23h 30m

Sydney Kingsford Smith

Wed 11/11

11:05 am-11:59 pm

3 stops30h 54m

$1,152

HelenaBrisbane

HLN Helena - BNE Brisbane

HLNBNE

Helena

Sat 1/30

5:00 pm-5:50 am

2 stops43h 50m

Brisbane

Wed 2/3

1:10 pm-4:23 pm

2 stops44h 13m

$1,152

HelenaBrisbane

HLN Helena - BNE Brisbane

HLNBNE

Helena

Sat 1/30

7:00 am-7:30 am

2 stops31h 30m

Brisbane

Wed 2/3

11:40 am-8:59 pm

2 stops26h 19m

$1,181

HelenaBrisbane

HLN Helena - BNE Brisbane

HLNBNE

Helena

Sat 1/30

7:00 am-7:30 am

2 stops31h 30m

Brisbane

Wed 2/3

11:40 am-8:59 pm

2 stops26h 19m

$1,182

BozemanSydney

BZN Bozeman Gallatin Field - SYD Sydney Kingsford Smith

BZNSYD

Bozeman Gallatin Field

Tue 2/2

3:40 pm-10:35 am

2 stops24h 55m

Sydney Kingsford Smith

Thu 2/18

11:50 am-11:59 am

2 stops42h 09m

$1,186

BozemanSydney

BZN Bozeman Gallatin Field - SYD Sydney Kingsford Smith

BZNSYD

Bozeman Gallatin Field

Tue 2/2

3:40 pm-10:35 am

2 stops24h 55m

Sydney Kingsford Smith

Thu 2/18

11:50 am-12:01 pm

2 stops42h 11m

$1,188

BozemanSydney

BZN Bozeman Gallatin Field - SYD Sydney Kingsford Smith

BZNSYD

Bozeman Gallatin Field

Tue 2/2

3:40 pm-10:35 am

2 stops24h 55m

Sydney Kingsford Smith

Thu 2/18

11:50 am-12:01 pm

2 stops42h 11m

$1,198

Quickest round-trip

KalispellSydney

FCA Kalispell Glacier Park - SYD Sydney Kingsford Smith

FCASYD

Kalispell Glacier Park

Wed 11/4

7:41 am-6:25 am

2 stops28h 44m

Sydney Kingsford Smith

Wed 11/11

11:20 am-5:54 pm

2 stops24h 34m

$1,292

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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

Best Price Found	$608
Fastest flight time	22h 44m
Direct flights	None

The best one-way flight to Australia from Montana in the past 72 hours is $608. The best round-trip flight deal from Montana to Australia found on momondo in the last 72 hours is $1,140.

The fastest flight from Montana to Australia takes 22h 44m

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 August 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 $1,340	Free Cancellation	Rating 7.4 10,104 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.