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$822+ Cheap flights from Australia to St. Louis (STL)

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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
Jan 26 — Feb 21
So 1/26
So 2/2
1 adult, Economy
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Cheap flight deals from Australia to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Australia (AU0) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Januar 21, 2025.

Round-trip from

$1,053
(Air Canada)

One-way from

$822
(United Airlines)
From Australia to Lambert-St Louis
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One-way flight from Australia to Lambert-St Louis
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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 Januar 21, 2025.

This Air Canada deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 3/511:20 amSYD - STL
2 stops44h 46mAir Canada
Mi 3/123:50 pmSTL - SYD
2 stops48h 45mAir Canada
Deal found 1/19$1,053
This Air Canada deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/99:20 amSYD - STL
2 stops44h 39mMultiple Airlines
Mi 4/161:43 pmSTL - SYD
2 stops26h 37mMultiple Airlines
Deal found 1/20$1,122
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 2/171:00 pmMEL - STL
2 stops37h 51mUnited Airlines
Mo 2/243:32 pmSTL - MEL
2 stops25h 28mUnited Airlines
Deal found 1/20$1,134
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 3/511:15 amSYD - STL
2 stops22h 06mAmerican Airlines
Mi 3/126:15 amSTL - SYD
1 stop34h 45mAmerican Airlines
Deal found 1/19$1,135
This Ovago deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 2/1712:00 pmMEL - STL
1 stop28h 08mQantas Airways
Mo 2/245:37 pmSTL - MEL
1 stop43h 03mQantas Airways
Deal found 1/20$1,141
This Aunt Betty deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 3/1311:15 amSYD - STL
1 stop27h 54mQantas Airways
Do 3/206:15 amSTL - SYD
1 stop34h 45mQantas Airways
Deal found 1/20$1,168
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 2/812:00 pmMEL - STL
2 stops24h 23mAmerican Airlines
Di 2/2512:00 pmSTL - MEL
2 stops26h 35mAmerican Airlines
Deal found 1/21$1,194
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 3/912:10 pmSYD - STL
2 stops42h 13mUnited Airlines
Fr 3/144:33 pmSTL - SYD
1 stop22h 27mUnited Airlines
Deal found 1/20$1,243
This OneTravel deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 2/87:30 amMEL - STL
3 stops48h 36mAir Canada
Di 2/253:50 pmSTL - MEL
3 stops53h 45mAir Canada
Deal found 1/21$1,299
This Qantas Airways deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 2/176:45 amMEL - STL
2 stops25h 22mMultiple Airlines
Mo 2/2411:57 amSTL - MEL
3 stops28h 53mMultiple Airlines
Deal found 1/20$1,809
This Priceline deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 2/1612:45 amMEL - STL
2 stops39h 23mCathay Pacific
Mo 2/246:10 amSTL - MEL
2 stops37h 20mCathay Pacific
Deal found 1/20$2,206
This Booking.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 3/139:00 pmSYD - STL
3 stops58h 31mTurkish Airlines
Do 3/205:33 pmSTL - SYD
3 stops57h 27mTurkish Airlines
Deal found 1/20$2,529

Find flights from Australia to St. Louis within your budget

Customize your flight search to find flights from Australia to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Januar 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mi 3/5

11:20 am-3:06 pm

2 stops44h 46m

Lambert-St Louis

Mi 3/12

3:50 pm-8:35 am

2 stops48h 45m

$1,053

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mi 4/9

9:20 am-2:59 pm

2 stops44h 39m

Lambert-St Louis

Mi 4/16

1:43 pm-7:20 am

2 stops26h 37m

$1,122

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mo 2/17

1:00 pm-9:51 am

2 stops37h 51m

Lambert-St Louis

Mo 2/24

3:32 pm-10:00 am

2 stops25h 28m

$1,134

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mi 3/5

11:15 am-11:08 pm

1 stop28h 53m

Lambert-St Louis

Mi 3/12

6:15 am-9:00 am

1 stop34h 45m

$1,135

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mo 2/17

12:00 pm-11:08 pm

1 stop28h 08m

Lambert-St Louis

Mo 2/24

5:37 pm-5:40 am

1 stop43h 03m

$1,141

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Do 3/13

11:15 am-11:09 pm

1 stop27h 54m

Lambert-St Louis

Do 3/20

6:15 am-9:00 am

1 stop34h 45m

$1,168

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sa 2/8

12:00 pm-7:23 pm

2 stops24h 23m

Lambert-St Louis

Di 2/25

12:00 pm-7:35 am

2 stops26h 35m

$1,194

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

So 3/9

11:50 am-7:54 pm

1 stop25h 04m

Lambert-St Louis

Fr 3/14

8:40 am-7:00 am

1 stop30h 20m

$1,243

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sa 2/8

7:30 am-3:06 pm

3 stops48h 36m

Lambert-St Louis

Di 2/25

3:50 pm-2:35 pm

3 stops53h 45m

$1,299

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mo 2/17

6:45 am-3:07 pm

2 stops25h 22m

Lambert-St Louis

Mo 2/24

11:57 am-9:50 am

3 stops28h 53m

$1,809

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 23 results
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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 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.

Travel insights for flights from Australia to St. Louis

Get recent, data-driven insights about flights from Australia to St. Louis including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Australia to St. Louis (average of $311). Flying from Australia to St. Louis in March is currently the most expensive (average of $356). 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?

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 Januar 21, 2025.

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

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated Januar 21, 2025.
To help decide which airline to fly from Australia to St. Louis, see what other customers have to say about American Airlines, Air Canada and United Airlines. 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.
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.8

Boarding

8.4

Reviews

1 / 10

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
1,449 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.8

Boarding

8.4

Reviews

1 / 10

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

Emirates
8.1
Very good
3,360 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.8

Boarding

8.4

Reviews

1 / 10

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
824 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.8

Boarding

8.4

Reviews

1 / 10

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

Cathay Pacific
7.5
Good
830 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.8

Boarding

8.4

Reviews

1 / 10

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

LATAM Airlines
7.5
Good
1,858 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.8

Boarding

8.4

Reviews

1 / 10

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

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?

    For a flight from Australia to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

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

    One-way options have recently been found by users for as low as $822 on United Airlines. Other airlines that offer cheap prices include Japan Airlines from $3,027 and Cathay Pacific from $3,628 one-way.

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

    When deciding which route to take from Australia to St. Louis consider Sydney Kingsford Smith - Lambert-St Louis, Melbourne - Lambert-St Louis or Devonport - Lambert-St Louis as they are the most popular.

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Australia to St. Louis (average of $311). Flying from Australia to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Australia?

Book flights to Australia if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Australia to St. Louis

Discover the top airline that operate flights from Australia to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Januar 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,018Average$1,776FlexibilityNo cancel feeOn-time71%
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