How long is the flight from Australia to St. Louis?

American Airlines, Air New Zealand, and United Airlines can get you from Australia to St. Louis in just under 20h 47m. Your travel time can differ by up to 5h 57m. Airlines will cover a distance of 14074 km. Both multi-stop and direct flights can be found to your destination and back. Find deals

What are the cheapest airlines to fly from Australia to St. Louis one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $892. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Australia to St. Louis for a low price. Find deals

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What are the most popular routes from Australia to St. Louis?

Most travellers choose Sydney Kingsford Smith - Lambert-St Louis, Melbourne - Lambert-St Louis or Brisbane - Lambert-St Louis when deciding on the best route from Australia to St. Louis.

What are the most popular airlines that fly from Australia to St. Louis?

Consider United Airlines, Qantas Airways or Air Canada when booking your flight. These represent the most popular airlines when flying from Australia to St. Louis.

What airport do you fly into for flights to St. Louis from Australia?

Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Australia. Lambert-St Louis is conveniently located just 20.4 km from St. Louis’s city centre.

Can I find deals for flights from Australia to St. Louis that include hotel bookings?

Yes. In addition to deals on Australia to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Australia to St. Louis?

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

Can I find deals for business class flights from Australia to St. Louis?

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

$886+ Flights from Australia to St. Louis

Cheap flight deals from Australia to St. Louis

Round-trip from	$1,413
One-way from	$886
Popular in	December
Cheapest in	November
Average price	$2,080

American Airlines
19/2-12/3
3 total stops
58h 34m total
Australia to St. Louis

Search Deals

19/10
3 total stops
55h 47m total
Australia to St. Louis

Search Deals

High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($61 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find flight deals from Australia to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Australia to St. Louis
Explore the most affordable flight options available from Australia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Wed 12/1110:45BNE - STL

2 stops44h 44mMultiple Airlines

Sat 22/1113:35STL - BNE

2 stops27h 10mMultiple Airlines

Deal found 12/10$1,469

Thu 27/1108:35MEL - STL

2 stops27h 17mAir New Zealand

Thu 4/1206:15STL - MEL

2 stops35h 40mAir New Zealand

Deal found 12/10$1,611

Thu 27/1109:55SYD - STL

2 stops25h 57mAir New Zealand

Thu 4/1206:15STL - SYD

2 stops37h 25mAir New Zealand

Deal found 12/10$1,620

Wed 12/1111:40BNE - STL

1 stop20h 47mUnited Airlines

Sat 22/1118:43STL - BNE

2 stops44h 47mUnited Airlines

Deal found 12/10$1,623

Fri 28/1109:55SYD - STL

2 stops25h 51mAir New Zealand

Fri 5/1206:15STL - SYD

2 stops35h 15mAir New Zealand

Deal found 13/10$1,656

Wed 3/1212:10MEL - STL

2 stops26h 48mAir New Zealand

Sun 7/1206:15STL - MEL

2 stops34h 10mAir New Zealand

Deal found 12/10$1,796

Wed 3/1209:55SYD - STL

2 stops29h 03mAir New Zealand

Sun 7/1206:15STL - SYD

2 stops35h 15mAir New Zealand

Deal found 12/10$1,805

Tue 2/1211:20SYD - STL

1 stop29h 22mAmerican Airlines

Sun 7/1215:59STL - SYD

2 stops24h 01mAmerican Airlines

Deal found 13/10$1,829

Thu 27/1112:10MEL - STL

2 stops23h 42mMultiple Airlines

Thu 4/1209:00STL - MEL

3 stops31h 25mMultiple Airlines

Deal found 12/10$1,830

Thu 27/1109:55SYD - STL

2 stops25h 57mMultiple Airlines

Thu 4/1209:00STL - SYD

3 stops30h 45mMultiple Airlines

Deal found 12/10$1,841

Sat 1/1112:10SYD - STL

1 stop20h 17mUnited Airlines

Sat 31/116:15STL - SYD

2 stops45h 45mUnited Airlines

Deal found 13/10$1,856

Tue 2/1211:20SYD - STL

1 stop29h 22mQantas Airways

Sun 7/1206:55STL - SYD

1 stop33h 05mQantas Airways

Deal found 13/10$1,866

Best flights from Australia to St. Louis
Discover carefully curated flight deals from Australia to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 October 2025.

Tue 10/212:00MEL - STL

1 stop28h 59mAmerican Airlines

Fri 27/206:10STL - MEL

1 stop34h 20mAmerican Airlines

Deal found 14/10$1,404

Wed 12/1110:45BNE - STL

2 stops44h 44mMultiple Airlines

Sat 22/1113:35STL - BNE

2 stops27h 10mMultiple Airlines

Deal found 12/10$1,469

Thu 27/1109:55SYD - STL

2 stops25h 57mAir New Zealand

Thu 4/1206:15STL - SYD

2 stops37h 25mAir New Zealand

Deal found 12/10$1,620

Wed 12/1111:40BNE - STL

1 stop20h 47mUnited Airlines

Sat 22/1118:43STL - BNE

2 stops44h 47mUnited Airlines

Deal found 12/10$1,623

Tue 2/1211:20SYD - STL

1 stop29h 22mQantas Airways

Sun 7/1206:55STL - SYD

1 stop33h 05mQantas Airways

Deal found 13/10$1,866

Tue 2/1211:20SYD - STL

2 stops45h 09mAir Canada

Sun 7/1216:05STL - SYD

2 stops69h 50mAir Canada

Deal found 13/10$1,954

Sun 8/310:40BNE - STL

2 stops21h 10mDelta

Tue 10/318:59STL - BNE

2 stops45h 21mDelta

Deal found 11/10$2,049

Sat 7/300:30BNE - STL

2 stops36h 54mCathay Pacific

Tue 10/311:18STL - BNE

2 stops32h 12mCathay Pacific

Deal found 11/10$2,171

Sat 14/212:00MEL - STL

1 stop28h 08mAmerican Airlines

Fri 27/206:10STL - MEL

1 stop34h 20mAmerican Airlines

Deal found 14/10$1,404

Sun 15/212:00MEL - STL

1 stop28h 08mAmerican Airlines

Thu 26/214:32STL - MEL

2 stops25h 58mAmerican Airlines

Deal found 14/10$1,404

Fri 28/1109:55SYD - STL

2 stops25h 51mAir New Zealand

Fri 5/1206:15STL - SYD

2 stops35h 15mAir New Zealand

Deal found 13/10$1,656

Mon 16/212:00MEL - STL

1 stop28h 08mAmerican Airlines

Thu 26/214:32STL - MEL

2 stops25h 58mAmerican Airlines

Deal found 14/10$1,404

Sat 1/1112:10SYD - STL

1 stop20h 17mUnited Airlines

Sat 31/116:15STL - SYD

2 stops45h 45mUnited Airlines

Deal found 13/10$1,856

Thu 12/212:00MEL - STL

2 stops28h 39mAmerican Airlines

Wed 25/214:32STL - MEL

2 stops25h 58mAmerican Airlines

Deal found 14/10$1,404

Fri 28/1109:55SYD - STL

2 stops25h 51mMultiple Airlines

Fri 5/1213:35STL - SYD

3 stops27h 55mMultiple Airlines

Deal found 13/10$1,943

Sun 15/212:00MEL - STL

1 stop28h 08mAmerican Airlines

Tue 24/214:13STL - MEL

2 stops26h 17mAmerican Airlines

Deal found 14/10$1,404

Tue 20/108:20BNE - STL

3 stops28h 38mMultiple Airlines

Tue 10/209:57STL - BNE

3 stops29h 03mMultiple Airlines

Deal found 13/10$2,026

Fri 13/212:00MEL - STL

1 stop28h 08mAmerican Airlines

Wed 25/211:54STL - MEL

1 stop24h 06mAmerican Airlines

Deal found 14/10$1,404

Sat 14/212:00MEL - STL

2 stops26h 44mAmerican Airlines

Tue 24/214:32STL - MEL

2 stops25h 58mAmerican Airlines

Deal found 14/10$1,404

Tue 10/212:00MEL - STL

1 stop28h 59mAmerican Airlines

Wed 25/211:54STL - MEL

1 stop24h 06mAmerican Airlines

Deal found 14/10$1,404

Wed 11/216:05MEL - STL

2 stops24h 07mAmerican Airlines

Fri 27/206:10STL - MEL

1 stop34h 20mAmerican Airlines

Deal found 14/10$1,404

Thu 20/1106:30LST - STL

2 stops34h 12mQantas Airways

Mon 24/1113:20STL - LST

2 stops34h 00mQantas Airways

Deal found 12/10$3,217

Thu 13/1106:30DPO - STL

2 stops34h 12mQantas Airways

Mon 17/1107:00STL - DPO

2 stops37h 10mQantas Airways

Deal found 12/10$3,307

Thu 12/311:20SYD - STL

1 stop27h 49mAmerican Airlines

Mon 16/318:29STL - SYD

2 stops44h 56mAmerican Airlines

Deal found 14/10$1,827

Tue 2/1211:20SYD - STL

1 stop29h 22mAmerican Airlines

Sun 7/1215:59STL - SYD

2 stops24h 01mAmerican Airlines

Deal found 13/10$1,829

Thu 27/1111:20SYD - STL

1 stop20h 57mAmerican Airlines

Thu 4/1206:55STL - SYD

1 stop33h 05mAmerican Airlines

Deal found 12/10$1,941

Last-minute flights from Australia to St. Louis
Discover last-minute flight deals from Australia to St. Louis. Data last updated 15 October 2025 and is based on user searches.

Sat 1/1111:05SYD - STL

2 stops21h 23mUnited Airlines

Sat 31/116:15STL - SYD

2 stops45h 05mUnited Airlines

Deal found 13/10$1,856

Wed 12/1110:45BNE - STL

2 stops44h 44mMultiple Airlines

Sat 22/1113:35STL - BNE

2 stops27h 10mMultiple Airlines

Deal found 12/10$1,469

Wed 12/1111:40BNE - STL

1 stop20h 47mUnited Airlines

Sat 22/1118:43STL - BNE

2 stops44h 47mUnited Airlines

Deal found 12/10$1,623

Thu 27/1108:35MEL - STL

2 stops27h 17mAir New Zealand

Thu 4/1206:15STL - MEL

2 stops35h 40mAir New Zealand

Deal found 12/10$1,611

Thu 27/1109:55SYD - STL

2 stops25h 57mAir New Zealand

Thu 4/1206:15STL - SYD

2 stops37h 25mAir New Zealand

Deal found 12/10$1,620

Thu 27/1112:10MEL - STL

2 stops23h 42mMultiple Airlines

Thu 4/1209:00STL - MEL

3 stops31h 25mMultiple Airlines

Deal found 12/10$1,830

Thu 27/1109:55SYD - STL

2 stops25h 57mMultiple Airlines

Thu 4/1209:00STL - SYD

3 stops30h 45mMultiple Airlines

Deal found 12/10$1,841

Thu 27/1111:20SYD - STL

2 stops28h 14mAmerican Airlines

Thu 4/1206:55STL - SYD

1 stop33h 05mAmerican Airlines

Deal found 12/10$1,941

Thu 27/1108:15MEL - STL

2 stops24h 02mAmerican Airlines

Thu 4/1206:55STL - MEL

1 stop33h 35mAmerican Airlines

Deal found 12/10$1,974

Fri 28/1109:55SYD - STL

2 stops25h 51mAir New Zealand

Fri 5/1206:15STL - SYD

2 stops35h 15mAir New Zealand

Deal found 13/10$1,656

Fri 28/1109:55SYD - STL

2 stops25h 51mMultiple Airlines

Fri 5/1213:35STL - SYD

3 stops27h 55mMultiple Airlines

Deal found 13/10$1,943

Fri 28/1111:20SYD - STL

1 stop29h 22mAmerican Airlines

Fri 5/1206:55STL - SYD

1 stop33h 05mAmerican Airlines

Deal found 13/10$1,980

One-way flights from Australia to St. Louis
Search for one-way flight options from Australia to St. Louis. Find affordable one-way fares based on user searches. Data last updated 15 October 2025.

Sun 19/1017:20SYD - STL

3 stops55h 47mMultiple Airlines

Deal found 13/10$886

Wed 14/116:05MEL - STL

1 stop33h 46mAmerican Airlines

Deal found 12/10$892

Wed 14/110:10MEL - STL

2 stops23h 40mDelta

Deal found 13/10$901

Thu 20/1112:10MEL - STL

2 stops23h 37mAir New Zealand

Deal found 14/10$1,134

Mon 20/1010:10SYD - STL

1 stop28h 55mAmerican Airlines

Deal found 14/10$1,160

Mon 24/1110:40SYD - STL

2 stops27h 06mDelta

Deal found 13/10$1,167

Mon 20/1011:20SYD - STL

1 stop21h 34mUnited Airlines

Deal found 13/10$1,168

Thu 27/1109:00SYD - STL

3 stops47h 08mMultiple Airlines

Deal found 13/10$1,216

Mon 24/1109:45SYD - STL

3 stops30h 14mAmerican Airlines

Deal found 13/10$1,247

Sun 19/1010:10SYD - STL

1 stop28h 55mAmerican Airlines

Deal found 14/10$1,265

Tue 25/1121:40SYD - STL

3 stops53h 18mMultiple Airlines

Deal found 13/10$1,268

Sun 23/1111:20SYD - STL

2 stops27h 34mUnited Airlines

Deal found 13/10$1,272

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Tue 10/2

12:00-23:59

1 stop28h 59m

Lambert-St Louis

Fri 27/2

06:10-09:30

1 stop34h 20m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sat 14/2

12:00-23:08

1 stop28h 08m

Lambert-St Louis

Fri 27/2

06:10-09:30

1 stop34h 20m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 15/2

12:00-23:08

1 stop28h 08m

Lambert-St Louis

Thu 26/2

14:32-09:30

2 stops25h 58m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mon 16/2

12:00-23:08

1 stop28h 08m

Lambert-St Louis

Thu 26/2

14:32-09:30

2 stops25h 58m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 12/2

12:00-23:39

2 stops28h 39m

Lambert-St Louis

Wed 25/2

14:32-09:30

2 stops25h 58m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 15/2

12:00-23:08

1 stop28h 08m

Lambert-St Louis

Tue 24/2

14:13-09:30

2 stops26h 17m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 13/2

12:00-23:08

1 stop28h 08m

Lambert-St Louis

Wed 25/2

11:54-05:00

1 stop24h 06m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sat 14/2

12:00-21:44

2 stops26h 44m

Lambert-St Louis

Tue 24/2

14:32-09:30

2 stops25h 58m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Tue 10/2

12:00-23:59

1 stop28h 59m

Lambert-St Louis

Wed 25/2

11:54-05:00

1 stop24h 06m

$1,404

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 11/2

16:05-23:12

2 stops24h 07m

Lambert-St Louis

Fri 27/2

06:10-09:30

1 stop34h 20m

$1,404

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 47 results

...

Best time to book a flight from Australia to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Australia 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 Australia to St. Louis

What is the cheapest month to book a flight from Australia to St. Louis?

Currently, December is the cheapest month in which you can book a flight from Australia to St. Louis (average of $1,136). Flying from Australia to St. Louis in April is currently the most expensive (average of $1,700). 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 AU to STL?

One of the essential ways to save on airfare from Australia to St. Louis is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 9% on airfare.

What is the cheapest day to fly from Australia to St. Louis?

Travellers seeking maximum savings on their Australia to St. Louis flight should consider departing on Sunday mornings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines from Australia to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air New Zealand

8.0

Very Good

514 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air New Zealand

8.0

Very Good

514 reviews

Air New Zealand

8.0

Very Good

514 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Qantas Airways

7.5

Good

916 reviews

Air New Zealand

8.0

Very Good

514 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

United Airlines

7.4

Good

8,977 reviews

Air New Zealand

8.0

Very Good

514 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air Canada

7.1

Good

10,298 reviews

Air New Zealand

8.0

Very Good

514 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

What airport do you fly into for flights to St. Louis from Australia?
Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Australia. Lambert-St Louis is conveniently located just 20.4 km from St. Louis’s city centre.
How long is the flight from Australia to St. Louis?
American Airlines, Air New Zealand, and United Airlines can get you from Australia to St. Louis in just under 20h 47m. Your travel time can differ by up to 5h 57m. Airlines will cover a distance of 14074 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from Australia to St. Louis one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $892. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Australia to St. Louis for a low price.
What are the most popular routes from Australia to St. Louis?
Most travellers choose Sydney Kingsford Smith - Lambert-St Louis, Melbourne - Lambert-St Louis or Brisbane - Lambert-St Louis when deciding on the best route from Australia to St. Louis.
Can I find deals for flights from Australia to St. Louis that include hotel bookings?
Yes. In addition to deals on Australia to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Australia to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to St. Louis.
Can I find deals for business class flights from Australia to St. Louis?
Yes. Cheapflights offers flight deals from Australia to St. Louis 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 Australia to St. Louis?
Currently, December is the cheapest month in which you can book a flight from Australia to St. Louis (average of $1,136). Flying from Australia to St. Louis in April is currently the most expensive (average of $1,700). 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

Alternative routes for Australia to St. Louis

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Complete your trip

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Lambert-St Louis Airport car hire

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Marion Williamson County Airport car hire

Central West End car hire

Midtown car hire

Soulard car hire

Top 4 airlines flying from Australia to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$1,170	Average$1,800	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,263	Average$2,157	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air New Zealand	Cheapest$1,507	Average$1,785	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Qantas Airways	Cheapest$1,527	Average$2,295	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Australia to St. Louis?

When you search for this flight from Australia to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Australia to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Australia to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Australia to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Australia to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Australia to St. Louis become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Australia to St. Louis from $886

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 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Australia to St. Louis

Keep the following information in mind while searching for Australia to St. Louis flight deals. Data was last updated 15 October 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Australia to St. Louis

Cheapest flights from Australia to St. LouisExplore the most affordable flight options available from Australia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Explore the most affordable flight options available from Australia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Australia to St. Louis

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

Cheapflights Insights

Everything you need to know about your flight from Australia to St. Louis

What is the cheapest month to book a flight from Australia to St. Louis?

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

Find hourly flight availability from Australia to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.

What is the cheapest day to fly from Australia to St. Louis?

Use this chart to determine the cheapest time to fly return from Australia to St. Louis. Price data was last updated on 16 December 2024.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines from Australia to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Australia to St. Louis. 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 St. Louis from Australia?

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Top 4 airlines flying from Australia to St. Louis

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Cheapest flights from Australia to St. Louis
Explore the most affordable flight options available from Australia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.