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

Air Canada, American Airlines, and Qantas Airways can get you from Australia to St. Louis in just under 26h. Your travel time can differ by up to 3h 36m. Airlines will cover a distance of 14571 km. Both multi-stop and direct flights can be found to your destination and back.

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 Melbourne - Lambert-St Louis, Sydney Kingsford Smith - 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 Qantas Airways, United Airlines or American Airlines when booking your flight. These represent the most popular airlines when flying 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.

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.

$1,040+ Cheap Flights from Australia to St. Louis

Cheap flight deals from Australia to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 10 September 2026.

Mon 5/1014:35 -

1 stop19h 45m

Mon 12/1015:20 -

1 stop21h 40m

Deal found 7/9$1,417

Mon 12/1010:20 -

2 stops26h 00m

Thu 5/1113:40 -

2 stops26h 55m

Deal found 9/9$1,433

Mon 5/1014:35 -

1 stop23h 24m

Mon 12/1011:31 -

2 stops25h 29m

Deal found 7/9$1,440

Mon 12/1010:20 -

3 stops48h 21m

Thu 5/1113:40 -

2 stops26h 55m

Deal found 9/9$1,497

Thu 5/1110:45 -

2 stops44h 41m

Mon 9/1116:39 -

2 stops24h 06m

Deal found 8/9$1,504

Sat 10/1009:45 -

1 stop30h 01m

Mon 12/1015:20 -

1 stop21h 40m

Deal found 8/9$1,551

Fri 16/1009:45 -

1 stop30h 01m

Tue 20/1019:10 -

1 stop41h 50m

Deal found 8/9$1,562

Wed 21/1010:10 -

1 stop29h 36m

Sat 24/1019:10 -

2 stops24h 35m

Deal found 8/9$1,586

Wed 21/1010:20 -

2 stops29h 24m

Sat 24/1005:10 -

2 stops35h 25m

Deal found 8/9$1,595

Fri 23/1009:45 -

2 stops26h 58m

Fri 30/1014:31 -

2 stops26h 59m

Deal found 8/9$1,597

Fri 23/1009:45 -

1 stop30h 01m

Fri 30/1008:03 -

2 stops33h 27m

Deal found 8/9$1,601

Mon 12/1010:10 -

1 stop29h 36m

Thu 5/1112:58 -

1 stop24h 57m

Deal found 9/9$1,622

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 10 September 2026.

Mon 12/1010:20 -

2 stops26h 00m

Thu 5/1113:40 -

2 stops26h 55m

Deal found 9/9$1,433

Wed 21/1010:10 -

1 stop29h 36m

Sat 24/1019:10 -

2 stops24h 35m

Deal found 7/9$1,586

Thu 17/909:10 -

1 stop29h 20m

Sat 7/1118:44 -

1 stop43h 11m

Deal found 8/9$1,637

Tue 15/909:15 -

2 stops22h 32m

Thu 5/1107:00 -

2 stops32h 30m

Deal found 8/9$1,664

Thu 17/917:50 -

3 stops30h 34m

Sat 7/1120:15 -

3 stops41h 10m

Deal found 8/9$1,711

Wed 4/1100:50 -

2 stops39h 09m

Mon 9/1107:26 -

2 stops47h 54m

Deal found 6/9$2,313

Fri 5/223:40 -

2 stops35h 49m

Tue 9/213:40 -

2 stops35h 10m

Deal found 5/9$2,420

Fri 5/211:30 -

2 stops21h 56m

Tue 9/213:09 -

3 stops28h 21m

Deal found 8/9$2,760

Thu 5/1110:45 -

2 stops44h 41m

Mon 9/1116:39 -

2 stops24h 06m

Deal found 8/9$1,504

Mon 12/1010:10 -

1 stop29h 36m

Thu 5/1114:54 -

2 stops25h 06m

Deal found 9/9$1,639

Wed 21/1010:20 -

2 stops29h 24m

Sat 24/1008:00 -

3 stops32h 35m

Deal found 9/9$1,608

Thu 5/1113:10 -

1 stop23h 32m

Mon 9/1112:58 -

2 stops48h 52m

Deal found 8/9$1,712

Wed 21/1022:20 -

2 stops38h 37m

Sat 24/1013:06 -

2 stops31h 54m

Deal found 5/9$2,608

Fri 18/1208:10 -

2 stops38h 16m

Tue 5/108:30 -

1 stop33h 00m

Deal found 8/9$2,814

Thu 17/1210:10 -

2 stops31h 36m

Wed 6/107:30 -

2 stops31h 30m

Deal found 7/9$2,879

Thu 5/1113:10 -

1 stop23h 32m

Mon 9/1108:10 -

1 stop29h 40m

Deal found 8/9$3,073

Thu 17/1212:45 -

2 stops26h 45m

Fri 8/108:30 -

1 stop33h 00m

Deal found 7/9$2,854

Wed 16/1210:10 -

2 stops28h 28m

Mon 4/107:20 -

2 stops31h 40m

Deal found 7/9$2,879

Fri 18/1212:45 -

2 stops27h 53m

Fri 8/113:09 -

3 stops27h 21m

Deal found 6/9$2,860

Tue 15/1210:10 -

2 stops30h 55m

Mon 4/115:45 -

2 stops23h 15m

Deal found 7/9$2,879

Thu 5/1113:35 -

2 stops48h 07m

Mon 9/1108:10 -

2 stops36h 00m

Deal found 5/9$3,269

Wed 16/1210:10 -

2 stops28h 18m

Wed 6/110:45 -

2 stops28h 15m

Deal found 9/9$2,882

Tue 15/1212:45 -

2 stops27h 29m

Thu 7/109:13 -

2 stops31h 17m

Deal found 8/9$2,936

Sat 6/206:30 -

2 stops58h 03m

Tue 9/212:50 -

2 stops27h 40m

Deal found 5/9$3,448

Mon 14/1210:10 -

2 stops39h 46m

Wed 6/114:15 -

2 stops24h 45m

Deal found 10/9$2,885

Thu 5/1106:20 -

2 stops28h 45m

Mon 9/1117:55 -

2 stops52h 10m

Deal found 8/9$3,096

Thu 5/1107:05 -

3 stops27h 00m

Mon 9/1110:53 -

2 stops28h 37m

Deal found 5/9$3,238

Find flight deals from Australia to St. Louis

Round-trip from	$1,417
One-way from	$1,040
Popular in	April
Cheapest in	September
Average price	$1,445

Qantas Airways
5/10-12/10
2 total stops
41h 25m total
Australia to St. Louis

Search Deals

2/11-31/12
2 total stops
24h 59m total
Australia to St. Louis

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($302 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($65 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

Cheapest return flight

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Fri 16/10

17:45-23:46

2 stops46h 01m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,095

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Sat 17/10

10:10-18:20

2 stops24h 10m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,106

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Sat 17/10

11:20-18:43

1 stop23h 23m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,110

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Fri 16/10

11:55-18:57

3 stops47h 02m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,128

Fastest return journey

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Mon 2/11

12:45-18:05

1 stop22h 20m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,141

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Sat 17/10

11:15-23:59

3 stops52h 44m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,424

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Mon 12/10

10:20-20:20

2 stops26h 00m

Lambert-St Louis

Thu 5/11

13:40-09:35

2 stops26h 55m

$1,433

BrisbaneSt. Louis

BNE Brisbane - STL Lambert-St Louis

BNESTL

Brisbane

Thu 5/11

10:45-15:26

2 stops44h 41m

Lambert-St Louis

Mon 9/11

16:39-08:45

2 stops24h 06m

$1,504

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:10-23:46

1 stop29h 36m

Lambert-St Louis

Sat 24/10

19:10-11:45

2 stops24h 35m

$1,586

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:20-23:44

2 stops29h 24m

Lambert-St Louis

Sat 24/10

08:00-08:35

3 stops32h 35m

$1,608

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 35 resultsSorted by cheapest first

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.

MEL-STL

SYD-STL

BNE-STL

LST-STL

DPO-STL

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

AU0-STL

MEL-STL

SYD-STL

BNE-STL

LST-STL

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

Currently, June is the cheapest month in which you can book a flight from Australia to St. Louis (average of $1,141). Flying from Australia to St. Louis in April is currently the most expensive (average of $2,123). 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.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown with Qantas Airways,United Airlines, andAmerican 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.

Qantas Airways

7.5

Good

1,092 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!

Qantas Airways

7.5

Good

1,092 reviews

Qantas Airways

7.5

Good

1,092 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

United Airlines

7.4

Good

10,194 reviews

Qantas Airways

7.5

Good

1,092 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

American Airlines

7.1

Good

12,044 reviews

Qantas Airways

7.5

Good

1,092 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

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?
Air Canada, American Airlines, and Qantas Airways can get you from Australia to St. Louis in just under 26h. Your travel time can differ by up to 3h 36m. Airlines will cover a distance of 14571 km. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Australia to St. Louis?
Most travellers choose Melbourne - Lambert-St Louis, Sydney Kingsford Smith - 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, June is the cheapest month in which you can book a flight from Australia to St. Louis (average of $1,141). Flying from Australia to St. Louis in April is currently the most expensive (average of $2,123). 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.

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Devonport to St. Louis flights

Top 3 airlines flying from Australia to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,084	Average$1,924	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
United Airlines	Cheapest$1,140	Average$1,735	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$1,448	Average$1,969	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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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.

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

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Cheap flights from Australia to St. Louis from $1,040

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. 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

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 10 September 2026.

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 10 September 2026.

Best flights from Australia to St. LouisDiscover 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 10 September 2026.

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 10 September 2026.

Last-minute flights from Australia to St. LouisDiscover last-minute flight deals from Australia to St. Louis. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Australia to St. Louis. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Australia to St. LouisSearch for one-way flight options from Australia to St. Louis. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Australia to St. Louis. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

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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

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

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown with Qantas Airways,United Airlines, andAmerican 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

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 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?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Australia to St. Louis

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

Complete your trip

Complete your trip to St. Louis by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Search flights from Australia to St. Louis by cabin class

Find flights from Australia to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Australia and St. Louis flights

Browse other Australia and St. Louis flight options. Last updated on 10 September 2026.

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Top 3 airlines flying from Australia to St. Louis

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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 10 September 2026.

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 10 September 2026.

Last-minute flights from Australia to St. Louis
Discover last-minute flight deals from Australia to St. Louis. Data last updated 10 September 2026 and is based on user searches.

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 10 September 2026.