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 Devonport - Lambert-St Louis when deciding on the best route from Australia to St. Louis. Find deals

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

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

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

March can be a great time to fly to St. Louis from Australia with a flight ticket averaging about $2,269. Cheapflights users have found deals in the month of March for as cheap as $1,651. The most expensive prices can be found in the month of August.

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.

$2,584+ Flights from Australia to St. Louis - Compare & Save Big

Cheap flight deals from Australia to St. Louis

Round-trip from	$1,887
One-way from	$1,399
Popular in	August
Cheapest in	March
Average price	$2,238

Delta
18/8-8/11
4 total stops
57h 13m total
Australia to St. Louis

Search Deals

14/5
3 total stops
52h 05m total
Australia to St. Louis

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($319 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($141 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 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 1 May 2025.

Mon 18/809:25SYD - STL

2 stops23h 38mDelta

Sat 8/1106:00STL - SYD

2 stops33h 35mDelta

Deal found 30/4$1,887

Mon 18/809:30SYD - STL

2 stops24h 23mUnited Airlines

Sat 8/1119:00STL - SYD

1 stop21h 15mUnited Airlines

Deal found 29/4$2,024

Wed 28/508:55SYD - STL

2 stops53h 09mJapan Airlines

Wed 4/607:00STL - SYD

2 stops32h 20mJapan Airlines

Deal found 28/4$2,174

Thu 30/1012:00MEL - STL

1 stop21h 03mUnited Airlines

Fri 2/108:50STL - MEL

1 stop32h 10mUnited Airlines

Deal found 30/4$2,174

Sun 5/1010:20SYD - STL

3 stops49h 37mMultiple Airlines

Sat 11/1016:40STL - SYD

2 stops23h 40mMultiple Airlines

Deal found 30/4$2,477

Mon 12/510:25SYD - STL

2 stops23h 08mAmerican Airlines

Sat 31/506:52STL - SYD

1 stop33h 13mAmerican Airlines

Deal found 29/4$2,621

Fri 30/509:10SYD - STL

1 stop28h 54mQantas Airways

Fri 6/606:28STL - SYD

1 stop33h 37mQantas Airways

Deal found 30/4$2,706

Wed 28/509:20SYD - STL

3 stops49h 38mAir Canada

Wed 4/609:10STL - SYD

2 stops31h 10mAir Canada

Deal found 28/4$2,834

Thu 30/1009:20MEL - STL

3 stops27h 03mMultiple Airlines

Fri 2/113:55STL - MEL

2 stops24h 40mMultiple Airlines

Deal found 30/4$3,121

Sun 5/1021:55SYD - STL

3 stops56h 24mTurkish Airlines

Sat 11/1015:30STL - SYD

3 stops60h 30mTurkish Airlines

Deal found 29/4$3,160

Sun 15/620:30MEL - STL

3 stops38h 13mAir Canada

Sun 22/607:30STL - MEL

3 stops36h 35mAir Canada

Deal found 1/5$3,375

Wed 29/1000:45MEL - STL

2 stops34h 23mCathay Pacific

Fri 2/111:14STL - MEL

2 stops42h 46mCathay Pacific

Deal found 30/4$3,487

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 1 May 2025.

Mon 18/809:25SYD - STL

2 stops23h 38mDelta

Sat 8/1106:00STL - SYD

2 stops33h 35mDelta

Deal found 30/4$1,887

Mon 18/809:30SYD - STL

2 stops24h 23mUnited Airlines

Sat 8/1119:00STL - SYD

1 stop21h 15mUnited Airlines

Deal found 29/4$2,024

Wed 28/508:55SYD - STL

2 stops53h 09mJapan Airlines

Wed 4/607:00STL - SYD

2 stops32h 20mJapan Airlines

Deal found 28/4$2,174

Sun 5/1010:20SYD - STL

3 stops49h 37mMultiple Airlines

Sat 11/1016:40STL - SYD

2 stops23h 40mMultiple Airlines

Deal found 30/4$2,477

Mon 12/510:25SYD - STL

2 stops23h 08mAmerican Airlines

Sat 31/506:52STL - SYD

1 stop33h 13mAmerican Airlines

Deal found 29/4$2,621

Fri 30/509:10SYD - STL

1 stop28h 54mQantas Airways

Fri 6/606:28STL - SYD

1 stop33h 37mQantas Airways

Deal found 30/4$2,706

Wed 28/509:20SYD - STL

3 stops49h 38mAir Canada

Wed 4/609:10STL - SYD

2 stops31h 10mAir Canada

Deal found 28/4$2,834

Sun 5/1021:55SYD - STL

3 stops56h 24mTurkish Airlines

Sat 11/1015:30STL - SYD

3 stops60h 30mTurkish Airlines

Deal found 29/4$3,160

Sun 15/609:30MEL - STL

2 stops22h 01mUnited Airlines

Sun 22/611:22STL - MEL

2 stops29h 53mUnited Airlines

Deal found 1/5$2,441

Sun 15/620:30MEL - STL

3 stops38h 13mAir Canada

Sun 22/607:30STL - MEL

3 stops36h 35mAir Canada

Deal found 1/5$3,375

Sun 15/607:00MEL - STL

3 stops28h 30mMultiple Airlines

Sun 22/619:47STL - MEL

2 stops23h 48mMultiple Airlines

Deal found 1/5$4,170

Last-minute flights from Australia to St. Louis
Discover last-minute flight deals from Australia to St. Louis. Data last updated 1 May 2025 and is based on user searches.

Mon 12/510:25SYD - STL

2 stops23h 08mAmerican Airlines

Sat 31/506:52STL - SYD

1 stop33h 13mAmerican Airlines

Deal found 29/4$2,621

Mon 12/509:25SYD - STL

2 stops26h 14mDelta

Sat 31/510:45STL - SYD

2 stops28h 50mDelta

Deal found 30/4$2,635

Mon 12/510:25SYD - STL

2 stops26h 27mMultiple Airlines

Sat 31/510:36STL - SYD

3 stops31h 09mMultiple Airlines

Deal found 30/4$3,137

Wed 28/508:55SYD - STL

2 stops53h 09mJapan Airlines

Wed 4/607:00STL - SYD

2 stops32h 20mJapan Airlines

Deal found 28/4$2,174

Wed 28/510:20SYD - STL

1 stop22h 40mUnited Airlines

Wed 4/619:10STL - SYD

1 stop20h 45mUnited Airlines

Deal found 28/4$2,396

Wed 28/509:20SYD - STL

3 stops49h 38mAir Canada

Wed 4/609:10STL - SYD

2 stops31h 10mAir Canada

Deal found 28/4$2,834

Fri 30/509:10SYD - STL

1 stop28h 54mQantas Airways

Fri 6/606:28STL - SYD

1 stop33h 37mQantas Airways

Deal found 30/4$2,706

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 18/8

09:25-18:03

2 stops23h 38m

Lambert-St Louis

Sat 8/11

06:00-08:35

2 stops33h 35m

$1,887

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 18/8

09:30-18:53

2 stops24h 23m

Lambert-St Louis

Sat 8/11

19:00-09:15

1 stop21h 15m

$2,024

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 28/5

08:55-23:04

2 stops53h 09m

Lambert-St Louis

Wed 4/6

07:00-06:20

2 stops32h 20m

$2,174

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 15/6

09:30-16:31

2 stops22h 01m

Lambert-St Louis

Sun 22/6

11:22-08:15

2 stops29h 53m

$2,441

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 5/10

10:20-19:57

3 stops49h 37m

Lambert-St Louis

Sat 11/10

16:40-08:20

2 stops23h 40m

$2,477

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 12/5

10:25-18:33

2 stops23h 08m

Lambert-St Louis

Sat 31/5

06:52-07:05

1 stop33h 13m

$2,621

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 30/5

09:10-23:04

1 stop28h 54m

Lambert-St Louis

Fri 6/6

06:28-07:05

1 stop33h 37m

$2,706

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 28/5

09:20-19:58

3 stops49h 38m

Lambert-St Louis

Wed 4/6

09:10-07:20

2 stops31h 10m

$2,834

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 5/10

21:55-14:19

3 stops56h 24m

Lambert-St Louis

Sat 11/10

15:30-20:00

3 stops60h 30m

$3,160

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 15/6

20:30-19:43

3 stops38h 13m

Lambert-St Louis

Sun 22/6

07:30-11:05

3 stops36h 35m

$3,375

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 13 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.

Rainfall in St. Louis by month

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.

Temperature in St. Louis by month

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).

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Japan Airlines, Delta and Qantas Airways from Australia to St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines

8.3

Very Good

1,464 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Delta

8.0

Very Good

7,934 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Qantas Airways

7.5

Good

829 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

United Airlines

7.4

Good

8,696 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Turkish Airlines

7.3

Good

3,791 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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.
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 Devonport - 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

Sydney to Kansas City flights

Sydney to St. Louis flights

Melbourne to St. Louis flights

Melbourne to Kansas City flights

Brisbane to Kansas City flights

Devonport to St. Louis flights

Cairns to Kansas City flights

Brisbane 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 5 airlines flying from Australia to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,510	Average$2,342	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air New Zealand	Cheapest$1,526	Average$1,826	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Air Canada	Cheapest$1,538	Average$2,095	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
American Airlines	Cheapest$1,713	Average$2,642	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$1,735	Average$2,629	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 $1,399

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 14/5. 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 1 May 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 1 May 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 1 May 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 1 May 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Japan Airlines, Delta and Qantas Airways from Australia to St. Louis to help guide your decision. Reviews also offer insight into each airline's 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?

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 5 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 1 May 2025.