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

United Airlines, American Airlines, and Cathay Pacific can get you from Australia to St. Louis in just under 20h 17m. Your travel time can differ by up to 14h 07m. 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 $754. 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. Find deals

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). Find deals

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

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

November can be a great time to fly to St. Louis from Australia with a flight ticket averaging about $2,114. Cheapflights users have found deals in the month of November for as cheap as $1,295. The most expensive prices can be found in the month of December.

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.

$754+ Flights from Australia to St. Louis

Cheap flight deals from Australia to St. Louis

Round-trip from	$1,275
One-way from	$754
Popular in	December
Cheapest in	November
Average price	$2,063

United Airlines
17/10-24/10
4 total stops
52h 08m total
Australia to St. Louis

Search Deals

American Airlines
26/11
2 total stops
40h 17m 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 ($53 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Australia to St. Louis

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 2 September 2025.

Fri 17/1010:30MEL - STL

2 stops26h 16mUnited Airlines

Fri 24/1015:23STL - MEL

2 stops25h 52mUnited Airlines

Deal found 2/9$1,275

Wed 22/1010:10SYD - STL

2 stops22h 13mAmerican Airlines

Thu 23/1006:39STL - SYD

1 stop33h 26mAmerican Airlines

Deal found 1/9$1,441

Fri 17/1006:45MEL - STL

3 stops48h 33mMultiple Airlines

Fri 24/1016:05STL - MEL

3 stops54h 00mMultiple Airlines

Deal found 2/9$1,482

Sat 18/1019:45BNE - STL

3 stops38h 53mMultiple Airlines

Sat 25/1009:15STL - BNE

2 stops31h 30mMultiple Airlines

Deal found 2/9$1,760

Wed 22/1011:50SYD - STL

2 stops23h 07mMultiple Airlines

Thu 23/1009:00STL - SYD

3 stops33h 35mMultiple Airlines

Deal found 1/9$1,800

Thu 20/1106:20LST - STL

2 stops27h 07mUnited Airlines

Mon 24/1117:29STL - LST

2 stops28h 56mUnited Airlines

Deal found 2/9$2,566

Sat 18/1010:30BNE - STL

1 stop21h 24mUnited Airlines

Sat 25/1009:00STL - BNE

2 stops30h 30mUnited Airlines

Deal found 2/9$2,741

Thu 16/1000:45MEL - STL

2 stops34h 24mCathay Pacific

Fri 24/1008:42STL - MEL

2 stops35h 33mCathay Pacific

Deal found 2/9$2,788

Fri 19/1212:10SYD - STL

2 stops27h 12mUnited Airlines

Wed 7/114:45STL - SYD

2 stops25h 20mUnited Airlines

Deal found 31/8$2,793

Fri 17/1009:45MEL - STL

1 stop29h 20mQantas Airways

Fri 24/1006:39STL - MEL

1 stop32h 06mQantas Airways

Deal found 2/9$2,897

Fri 19/1217:45SYD - STL

1 stop23h 06mAmerican Airlines

Wed 7/106:00STL - SYD

1 stop34h 00mAmerican Airlines

Deal found 31/8$3,236

Thu 13/1106:30DPO - STL

2 stops34h 12mQantas Airways

Mon 17/1107:00STL - DPO

2 stops44h 05mQantas Airways

Deal found 2/9$3,307

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 2 September 2025.

Fri 17/1010:30MEL - STL

2 stops26h 16mUnited Airlines

Fri 24/1015:23STL - MEL

2 stops25h 52mUnited Airlines

Deal found 2/9$1,275

Sun 2/1119:25BNE - STL

1 stop20h 17mAmerican Airlines

Wed 12/1113:20STL - BNE

2 stops23h 40mAmerican Airlines

Deal found 31/8$1,311

Fri 17/1006:45MEL - STL

3 stops48h 33mMultiple Airlines

Fri 24/1016:05STL - MEL

3 stops54h 00mMultiple Airlines

Deal found 2/9$1,482

Sat 10/116:00SYD - STL

2 stops40h 29mAir Canada

Sun 7/613:30STL - SYD

3 stops50h 50mAir Canada

Deal found 31/8$2,289

Mon 3/1119:25BNE - STL

1 stop20h 17mAmerican Airlines

Thu 13/1107:00STL - BNE

1 stop30h 00mAmerican Airlines

Deal found 31/8$1,311

Thu 16/1000:45MEL - STL

2 stops34h 24mCathay Pacific

Fri 24/1008:42STL - MEL

2 stops35h 33mCathay Pacific

Deal found 2/9$2,788

Sat 1/1119:25BNE - STL

1 stop18h 40mAmerican Airlines

Sat 8/1107:00STL - BNE

1 stop30h 00mAmerican Airlines

Deal found 31/8$1,311

Fri 17/1009:45MEL - STL

1 stop29h 20mQantas Airways

Fri 24/1006:39STL - MEL

1 stop32h 06mQantas Airways

Deal found 2/9$2,897

Sun 2/1119:25BNE - STL

1 stop20h 17mAmerican Airlines

Fri 14/1114:29STL - BNE

2 stops22h 31mAmerican Airlines

Deal found 31/8$1,311

Sat 1/1119:25BNE - STL

1 stop18h 40mAmerican Airlines

Sun 9/1105:15STL - BNE

2 stops31h 45mAmerican Airlines

Deal found 31/8$1,311

Wed 22/1011:50SYD - STL

2 stops23h 07mMultiple Airlines

Thu 23/1009:00STL - SYD

3 stops33h 35mMultiple Airlines

Deal found 1/9$1,800

Sun 2/1119:25BNE - STL

1 stop20h 17mAmerican Airlines

Thu 13/1107:00STL - BNE

1 stop30h 00mAmerican Airlines

Deal found 31/8$1,311

Last-minute flights from Australia to St. Louis
Discover last-minute flight deals from Australia to St. Louis. Data last updated 2 September 2025 and is based on user searches.

Fri 17/1010:30MEL - STL

2 stops26h 16mUnited Airlines

Fri 24/1015:23STL - MEL

2 stops25h 52mUnited Airlines

Deal found 2/9$1,275

Fri 17/1006:45MEL - STL

3 stops48h 33mMultiple Airlines

Fri 24/1016:05STL - MEL

3 stops54h 00mMultiple Airlines

Deal found 2/9$1,482

Wed 22/1010:10SYD - STL

2 stops22h 13mAmerican Airlines

Thu 23/1012:23STL - SYD

2 stops27h 42mAmerican Airlines

Deal found 1/9$1,441

Tue 28/1009:45BNE - STL

2 stops44h 44mAir Canada

Mon 10/1116:05STL - BNE

2 stops48h 40mAir Canada

Deal found 31/8$1,406

Tue 28/1010:40BNE - STL

2 stops21h 59mUnited Airlines

Sun 9/1117:29STL - BNE

1 stop22h 01mUnited Airlines

Deal found 31/8$1,499

Tue 28/1010:40BNE - STL

1 stop20h 47mUnited Airlines

Tue 11/1117:29STL - BNE

1 stop22h 01mUnited Airlines

Deal found 31/8$1,504

Tue 28/1010:40BNE - STL

1 stop20h 47mUnited Airlines

Fri 14/1117:29STL - BNE

1 stop22h 01mUnited Airlines

Deal found 31/8$1,579

Wed 29/1009:45BNE - STL

2 stops27h 09mAir Canada

Fri 14/1109:00STL - BNE

2 stops31h 45mAir Canada

Deal found 31/8$1,424

Fri 31/1008:40BNE - STL

2 stops22h 41mAmerican Airlines

Tue 11/1117:58STL - BNE

1 stop20h 32mAmerican Airlines

Deal found 31/8$1,312

Fri 31/1008:40BNE - STL

1 stop22h 32mAmerican Airlines

Mon 10/1107:00STL - BNE

2 stops43h 00mAmerican Airlines

Deal found 31/8$1,347

Fri 31/1010:40BNE - STL

1 stop20h 47mUnited Airlines

Mon 10/1117:29STL - BNE

1 stop22h 01mUnited Airlines

Deal found 31/8$1,358

Fri 31/1005:05BNE - STL

3 stops49h 24mAir Canada

Tue 11/1116:05STL - BNE

2 stops48h 40mAir Canada

Deal found 31/8$1,400

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 2 September 2025.

Wed 26/1111:20SYD - STL

2 stops40h 17mAmerican Airlines

Deal found 31/8$754

Mon 15/909:10SYD - STL

1 stop28h 49mAmerican Airlines

Deal found 1/9$760

Sat 1/1111:25BNE - STL

3 stops46h 03mMultiple Airlines

Deal found 2/9$776

Mon 1/1210:40SYD - STL

2 stops52h 18mDelta

Deal found 31/8$777

Mon 15/909:20SYD - STL

3 stops49h 37mAir Canada

Deal found 1/9$779

Fri 31/1011:35BNE - STL

3 stops36h 32mMultiple Airlines

Deal found 2/9$785

Sun 2/1111:20BNE - STL

3 stops42h 37mMultiple Airlines

Deal found 2/9$806

Sun 2/1110:40BNE - STL

2 stops26h 58mDelta

Deal found 2/9$835

Wed 29/1009:45BNE - STL

2 stops44h 44mAir Canada

Deal found 2/9$842

Tue 28/1009:45BNE - STL

2 stops21h 43mAir Canada

Deal found 2/9$846

Tue 25/1111:20SYD - STL

1 stop29h 22mAmerican Airlines

Deal found 31/8$855

Sat 1/1110:40BNE - STL

1 stop20h 47mUnited Airlines

Deal found 2/9$862

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 17/10

10:30-20:46

2 stops26h 16m

Lambert-St Louis

Fri 24/10

15:23-09:15

2 stops25h 52m

$1,275

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 2/11

19:25-23:42

1 stop20h 17m

Lambert-St Louis

Wed 12/11

13:20-05:00

2 stops23h 40m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Mon 3/11

19:25-23:42

1 stop20h 17m

Lambert-St Louis

Thu 13/11

07:00-05:00

1 stop30h 00m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sat 1/11

19:25-23:05

1 stop18h 40m

Lambert-St Louis

Sat 8/11

07:00-05:00

1 stop30h 00m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 2/11

19:25-23:42

1 stop20h 17m

Lambert-St Louis

Fri 14/11

14:29-05:00

2 stops22h 31m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sat 1/11

19:25-23:05

1 stop18h 40m

Lambert-St Louis

Sun 9/11

05:15-05:00

2 stops31h 45m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 2/11

19:25-23:42

1 stop20h 17m

Lambert-St Louis

Thu 13/11

07:00-05:00

1 stop30h 00m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sat 1/11

19:25-23:05

1 stop18h 40m

Lambert-St Louis

Wed 12/11

08:13-05:00

2 stops28h 47m

$1,311

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sat 1/11

19:25-23:05

1 stop18h 40m

Lambert-St Louis

Thu 13/11

07:00-05:00

1 stop30h 00m

$1,311

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 22/10

10:10-16:23

2 stops22h 13m

Lambert-St Louis

Thu 23/10

12:23-08:05

2 stops27h 42m

$1,441

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 41 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 time of day to fly from AU to STL?

When flying from Australia to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

505 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

505 reviews

Air New Zealand

8.0

Very Good

505 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

904 reviews

Air New Zealand

8.0

Very Good

505 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

8,937 reviews

Air New Zealand

8.0

Very Good

505 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

10,000 reviews

Air New Zealand

8.0

Very Good

505 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?
United Airlines, American Airlines, and Cathay Pacific can get you from Australia to St. Louis in just under 20h 17m. Your travel time can differ by up to 14h 07m. 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 $754. 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.

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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Brisbane to Kansas City flights

Sydney to St. Louis flights

Sydney to Kansas City flights

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Devonport to St. Louis flights

Complete your trip

St. Louis car hire

Lambert-St Louis Airport car hire

Springfield Capital Airport car hire

Belleville Airport car hire

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$1,162	Average$1,818	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,254	Average$2,171	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air New Zealand	Cheapest$1,497	Average$1,773	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Qantas Airways	Cheapest$1,517	Average$2,576	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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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.

Cheap flights from Australia to St. Louis from $754

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 28/11. 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 2 September 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 2 September 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 2 September 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 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 2 September 2025.

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?

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

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

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

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

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

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

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 Australia to St. Louis

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

Top 4 airlines flying from Australia to St. Louis

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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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 2 September 2025.