What are the cheapest airlines to fly from Missouri to Australia one-way?

The cheapest airlines for a one-way flight from Missouri to Australia are American Airlines ($693), Fiji Airways ($739), and Qantas Airways ($5,290).

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

How far in advance should I book a flight from Missouri to Australia?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 32 days in advance, which can save you up to 47% on flights from Missouri to Australia compared to booking the week you need them. Waiting 32 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,303. For sooner than that we have options available in the next 3 days from $1,995.

What is the cheapest month to fly from Missouri to Australia?

Our data shows that October tends to be the cheapest month to fly to Australia from Missouri. Users have commonly found prices around $1,456 for the month, but tickets can be as low as $573. Due to multiple factors, prepare for potentially higher prices in December.

Can I find deals for flights from Missouri to Australia that include hotel bookings?

Yes. In addition to deals on Missouri to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Missouri to Australia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Australia.

Can I find deals for business class flights from Missouri to Australia?

Yes. Cheapflights offers flight deals from Missouri to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$693+ Flights from Missouri to Australia

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Missouri to Australia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missouri to Australia

Round-trip from	$987 (Expedia)
One-way from	$693 (American Airlines)
Popular in	December
Cheapest in	October
Average price	$1,378

From Missouri to Australia

Search Deals

One-way flight from Missouri to Australia

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($128 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($52 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Missouri to Australia

Cheapest flights from Missouri to Australia
Explore the most affordable flight options available from Missouri to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Mon 12/151:40 pmMCI - BNE

2 stops27h 05mAir Canada

Thu 1/1510:45 amBNE - MCI

2 stops21h 18mAir Canada

Deal found 8/13

$987

Thu 11/61:35 pmSTL - BNE

2 stops27h 10mAir Canada

Sun 11/1610:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 8/14

$992

Fri 10/314:43 pmSTL - BNE

2 stops24h 02mAir Canada

Mon 11/1010:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 8/14

$1,002

Tue 11/255:10 pmMCI - BNE

2 stops23h 35mAir Canada

Thu 12/2510:45 amBNE - MCI

2 stops25h 19mAir Canada

Deal found 8/14

$1,005

Wed 11/51:35 pmSTL - BNE

2 stops27h 10mAir Canada

Sat 11/1510:45 amBNE - STL

2 stops27h 04mAir Canada

Deal found 8/14

$1,005

Sat 11/85:58 pmSTL - BNE

1 stop20h 32mQantas Airways

Sat 11/157:25 pmBNE - STL

1 stop20h 17mQantas Airways

Deal found 8/14

$1,015

Fri 10/314:05 pmSTL - BNE

2 stops48h 40mAir Canada

Tue 11/116:35 amBNE - STL

3 stops48h 54mAir Canada

Deal found 8/14

$1,017

Sat 11/225:35 pmMCI - BNE

1 stop20h 55mQantas Airways

Fri 12/269:40 amBNE - MCI

1 stop17h 54mQantas Airways

Deal found 8/14

$1,021

Thu 11/63:59 pmSTL - BNE

1 stop22h 31mQantas Airways

Sun 11/169:40 amBNE - STL

1 stop18h 59mQantas Airways

Deal found 8/14

$1,021

Fri 8/159:23 amSTL - BNE

2 stops29h 02mAmerican Airlines

Fri 8/228:05 pmBNE - STL

2 stops27h 55mAmerican Airlines

Deal found 8/14

$1,049

Thu 11/61:35 pmSTL - BNE

2 stops27h 10mMultiple Airlines

Sun 11/166:05 amBNE - STL

3 stops49h 24mMultiple Airlines

Deal found 8/14

$1,051

Sat 12/135:10 pmMCI - BNE

2 stops47h 35mAir Canada

Sat 1/1710:45 amBNE - MCI

2 stops42h 07mAir Canada

Deal found 8/13

$1,058

Best flights from Missouri to Australia
Discover carefully curated flight deals from Missouri to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Thu 11/61:35 pmSTL - BNE

2 stops27h 10mAir Canada

Sun 11/1610:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 8/14

$992

Thu 11/63:59 pmSTL - BNE

1 stop22h 31mQantas Airways

Sun 11/169:40 amBNE - STL

1 stop18h 59mQantas Airways

Deal found 8/14

$1,021

Thu 11/61:35 pmSTL - BNE

2 stops27h 10mMultiple Airlines

Sun 11/166:05 amBNE - STL

3 stops49h 24mMultiple Airlines

Deal found 8/14

$1,051

Tue 1/205:00 pmSGF - BNE

2 stops46h 30mUnited Airlines

Tue 2/1011:40 amBNE - SGF

2 stops20h 43mUnited Airlines

Deal found 8/12

$1,086

Tue 10/2110:53 amMCI - BNE

2 stops27h 32mAmerican Airlines

Sat 11/17:25 pmBNE - MCI

2 stops29h 21mAmerican Airlines

Deal found 8/12

$1,208

Sat 11/81:35 pmSTL - BNE

2 stops27h 10mAir Canada

Sat 11/1510:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 8/14

$992

Fri 11/77:00 amSTL - BNE

1 stop30h 00mQantas Airways

Sat 11/157:25 pmBNE - STL

1 stop20h 17mQantas Airways

Deal found 8/14

$1,060

Fri 10/314:43 pmSTL - BNE

2 stops24h 02mAir Canada

Mon 11/1010:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 8/14

$1,002

Sun 9/284:05 pmMCI - MEL

2 stops29h 20mMultiple Airlines

Sun 10/52:30 pmMEL - MCI

3 stops35h 28mMultiple Airlines

Deal found 8/13

$1,140

Tue 1/201:48 pmSTL - MEL

1 stop22h 12mQantas Airways

Tue 2/34:25 pmMEL - STL

2 stops24h 34mQantas Airways

Deal found 8/13

$1,076

Fri 10/311:35 pmSTL - BNE

2 stops27h 10mAir Canada

Tue 11/1110:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 8/14

$1,002

Mon 12/159:05 amSGF - BNE

2 stops30h 25mUnited Airlines

Sat 1/1711:40 amBNE - SGF

2 stops24h 54mUnited Airlines

Deal found 8/13

$1,233

Last-minute flights from Missouri to Australia
Discover last-minute flight deals from Missouri to Australia. Data last updated August 14, 2025 and is based on user searches.

Fri 8/159:23 amSTL - BNE

2 stops29h 02mAmerican Airlines

Fri 8/228:05 pmBNE - STL

2 stops27h 55mAmerican Airlines

Deal found 8/14

$1,049

Thu 8/216:45 amSTL - AVV

2 stops49h 05mQantas Airways

Mon 8/256:00 amAVV - STL

2 stops32h 09mQantas Airways

Deal found 8/11

$3,368

Fri 8/221:30 pmSTL - BNE

2 stops50h 35mAir Canada

Thu 8/2810:20 amBNE - STL

2 stops28h 33mAir Canada

Deal found 8/14

$1,355

Fri 8/226:45 amSTL - BNE

1 stop31h 40mAmerican Airlines

Thu 8/288:05 pmBNE - STL

2 stops27h 53mAmerican Airlines

Deal found 8/12

$1,479

Fri 8/229:15 amSTL - BNE

3 stops35h 20mMultiple Airlines

Thu 8/2810:20 amBNE - STL

2 stops23h 38mMultiple Airlines

Deal found 8/14

$2,243

Fri 8/226:45 amSTL - BNE

3 stops39h 50mCathay Pacific

Thu 8/287:40 pmBNE - STL

3 stops38h 29mCathay Pacific

Deal found 8/14

$2,867

Fri 8/226:45 amSTL - BNE

2 stops36h 55mQantas Airways

Thu 8/288:45 pmBNE - STL

2 stops34h 58mQantas Airways

Deal found 8/12

$3,739

Fri 8/221:45 pmMCI - SYD

2 stops26h 15mUnited Airlines

Fri 9/59:30 amSYD - MCI

2 stops21h 39mUnited Airlines

Deal found 8/14

$3,747

Sat 8/235:30 pmSTL - SYD

2 stops46h 05mDelta

Wed 8/279:25 amSYD - STL

2 stops23h 22mDelta

Deal found 8/12

$1,299

Sat 8/2312:20 pmSTL - SYD

1 stop27h 35mAmerican Airlines

Mon 9/112:10 pmSYD - STL

1 stop22h 19mAmerican Airlines

Deal found 8/12

$1,345

Sat 8/239:17 amSTL - SYD

2 stops30h 43mUnited Airlines

Wed 8/2710:20 amSYD - STL

1 stop21h 33mUnited Airlines

Deal found 8/13

$1,545

Sat 8/236:45 amSTL - SYD

2 stops37h 05mCathay Pacific

Mon 9/111:30 amSYD - STL

3 stops50h 44mCathay Pacific

Deal found 8/12

$2,072

One-way flights from Missouri to Australia
Search for one-way flight options from Missouri to Australia. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Sat 11/14:34 pmSTL - MEL

2 stops24h 56mAmerican Airlines

Deal found 8/13

$693

Sun 9/283:56 pmSTL - SYD

2 stops24h 09mAmerican Airlines

Deal found 8/14

$733

Sat 1/35:57 pmSTL - SYD

2 stops34h 53mFiji Airways

Deal found 8/14

$739

Sat 11/14:05 pmSTL - MEL

3 stops54h 00mMultiple Airlines

Deal found 8/14

$770

Mon 10/64:00 pmSTL - MEL

3 stops59h 20mMultiple Airlines

Deal found 8/13

$793

Sun 9/2810:39 amSTL - SYD

3 stops34h 06mMultiple Airlines

Deal found 8/14

$805

Sun 1/46:30 amSTL - SYD

2 stops46h 20mMultiple Airlines

Deal found 8/14

$831

Mon 10/66:15 amSTL - MEL

2 stops35h 00mUnited Airlines

Deal found 8/13

$850

Wed 12/319:00 amSTL - SYD

2 stops28h 20mUnited Airlines

Deal found 8/14

$851

Mon 10/66:39 amSTL - MEL

1 stop32h 06mQantas Airways

Deal found 8/13

$860

Sat 11/15:29 pmSTL - MEL

1 stop23h 31mUnited Airlines

Deal found 8/14

$909

Thu 1/19:55 amSTL - SYD

2 stops27h 25mUnited Airlines

Deal found 8/14

$916

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 11/6

1:35 pm-8:45 am

2 stops27h 10m

Brisbane

Sun 11/16

10:45 am-3:29 pm

2 stops44h 44m

$992

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 11/8

1:35 pm-8:45 am

2 stops27h 10m

Brisbane

Sat 11/15

10:45 am-3:29 pm

2 stops44h 44m

$992

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 10/31

4:43 pm-7:45 am

2 stops24h 02m

Brisbane

Mon 11/10

10:45 am-3:29 pm

2 stops44h 44m

$1,002

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 10/31

1:35 pm-7:45 am

2 stops27h 10m

Brisbane

Tue 11/11

10:45 am-3:29 pm

2 stops44h 44m

$1,002

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 10/31

4:43 pm-7:45 am

2 stops24h 02m

Brisbane

Wed 11/12

10:45 am-3:29 pm

2 stops44h 44m

$1,002

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 11/5

4:55 pm-8:45 am

2 stops23h 50m

Brisbane

Sun 11/16

10:45 am-9:54 pm

2 stops27h 09m

$1,005

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 11/5

1:35 pm-8:45 am

2 stops27h 10m

Brisbane

Sat 11/15

10:45 am-9:49 pm

2 stops27h 04m

$1,005

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 11/6

1:35 pm-8:45 am

2 stops27h 10m

Brisbane

Sat 11/15

10:45 am-4:28 pm

2 stops21h 43m

$1,005

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 11/6

3:59 pm-6:30 am

1 stop22h 31m

Brisbane

Sun 11/16

9:40 am-12:39 pm

1 stop18h 59m

$1,021

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 11/6

1:35 pm-8:45 am

2 stops27h 10m

Brisbane

Sun 11/16

6:05 am-3:29 pm

3 stops49h 24m

$1,051

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 46 results

...

Best time to book a flight from Missouri to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Missouri 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 Missouri to Australia

What is the cheapest month to book a flight from Missouri to Australia?

Currently, February is the cheapest month in which you can book a flight from Missouri to Australia (average of $1,031). Flying from Missouri to Australia 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.

What is the cheapest time of day to fly from MO to AU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Australia as you normally would.

Related info for your journey

What are the cheapest airlines to fly from Missouri to Australia one-way?
The cheapest airlines for a one-way flight from Missouri to Australia are American Airlines ($693), Fiji Airways ($739), and Qantas Airways ($5,290).
Can I find deals for flights from Missouri to Australia that include hotel bookings?
Yes. In addition to deals on Missouri to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Missouri to Australia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Australia.
Can I find deals for business class flights from Missouri to Australia?
Yes. Cheapflights offers flight deals from Missouri to Australia 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 Missouri to Australia?
Currently, February is the cheapest month in which you can book a flight from Missouri to Australia (average of $1,031). Flying from Missouri to Australia 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

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Missouri to Australia

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$687	Average$1,605	FlexibilityNo cancel fee	On-time74%
United Airlines	Cheapest$822	Average$1,463	FlexibilityNo cancel fee	On-time69%
Fiji Airways	Cheapest$887	Average$1,287	FlexibilityNo cancel fee	On-time74%
Delta	Cheapest$981	Average$1,444	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$1,000	Average$1,293	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$1,044	Average$1,629	FlexibilityNo cancel fee	On-time71%
Air New Zealand	Cheapest$1,173	Average$1,655	FlexibilityNo cancel fee	On-time78%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$693+ Cheap flights from Missouri to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Missouri to Australia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Missouri to Australia

Keep the following information in mind while searching for Missouri to Australia flight deals. Data was last updated August 14, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Missouri to Australia

Cheapest flights from Missouri to AustraliaExplore the most affordable flight options available from Missouri to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Missouri to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Missouri to Australia that are best for you.

Best time to book a flight from Missouri to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Missouri with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Australia

What is the cheapest month to book a flight from Missouri to Australia?

What is the cheapest time of day to fly from MO to AU?

Find hourly flight availability from Missouri to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Missouri to Australia one-way?

Can I find deals for flights from Missouri to Australia that include hotel bookings?

How can I find direct flights from Missouri to Australia?

Can I find deals for business class flights from Missouri to Australia?

What is the cheapest month to book a flight from Missouri to Australia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Australia

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Missouri to Australia

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Missouri to Australia
Explore the most affordable flight options available from Missouri to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.