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Cheap flights from Australia to St. Louis from $1,050

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
15 Jul — 22 Jul1
1 adult

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 10 July 2025.

Round-trip from

$1,595

One-way from

$1,050

Popular in

August

Cheapest in

November

Average price

$2,005
American Airlines
  • American Airlines
  • 18/8-8/11
  • 2 total stops
  • 52h 43m total
  • Australia to St. Louis
Search Deals
15/8
  • 15/8
  • 2 total stops
  • 37h 06m total
  • Australia to St. Louis
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($358 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($138 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 10 July 2025.

Mon 18/812:10SYD - STL
1 stop18h 58mAmerican Airlines
Sat 8/1106:15STL - SYD
1 stop33h 45mAmerican Airlines
Deal found 8/7$1,595
Fri 22/808:35MEL - STL
2 stops26h 38mAir New Zealand
Fri 29/808:20STL - MEL
2 stops35h 30mAir New Zealand
Deal found 7/7$1,639
Fri 22/808:45SYD - STL
2 stops26h 28mAir New Zealand
Fri 29/808:20STL - SYD
2 stops33h 25mAir New Zealand
Deal found 8/7$1,747
Tue 29/709:20SYD - STL
2 stops53h 39mAir Canada
Sun 3/816:00STL - SYD
2 stops48h 20mAir Canada
Deal found 9/7$1,920
Tue 29/709:20SYD - STL
2 stops25h 40mMultiple Airlines
Sun 3/819:38STL - SYD
1 stop20h 17mMultiple Airlines
Deal found 9/7$1,961
Fri 22/810:55MEL - STL
2 stops24h 18mUnited Airlines
Fri 29/811:30STL - MEL
2 stops29h 00mUnited Airlines
Deal found 8/7$2,119
Thu 10/722:15BNE - STL
2 stops64h 44mMultiple Airlines
Sat 2/819:32STL - BNE
2 stops33h 28mMultiple Airlines
Deal found 9/7$2,217
Sat 23/813:50BNE - STL
2 stops24h 19mQantas Airways
Sat 30/806:45STL - BNE
2 stops36h 55mQantas Airways
Deal found 9/7$2,448
Fri 22/808:35MEL - STL
2 stops26h 38mMultiple Airlines
Fri 29/813:39STL - MEL
3 stops30h 11mMultiple Airlines
Deal found 7/7$2,561
Tue 29/717:45SYD - STL
1 stop20h 45mQantas Airways
Sun 3/806:14STL - SYD
1 stop34h 16mQantas Airways
Deal found 9/7$2,654
Fri 22/809:45MEL - STL
1 stop28h 24mQantas Airways
Fri 29/817:32STL - MEL
1 stop20h 28mQantas Airways
Deal found 7/7$2,818
Thu 13/1106:30LST - STL
2 stops34h 27mQantas Airways
Mon 17/1113:55STL - LST
2 stops37h 05mQantas Airways
Deal found 7/7$3,012

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 10 July 2025.
Use the filters below to find and compare flights from Australia to St. Louis that are best for you.

Fly from

Australia

Fly to

St. Louis

Route

Depart

Return

Price

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 18/8

12:10-16:08

1 stop18h 58m

Lambert-St Louis

Sat 8/11

06:15-09:00

1 stop33h 45m

$1,595

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 22/8

08:35-20:13

2 stops26h 38m

Lambert-St Louis

Fri 29/8

08:20-10:50

2 stops35h 30m

$1,639

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 22/8

08:45-20:13

2 stops26h 28m

Lambert-St Louis

Fri 29/8

08:20-08:45

2 stops33h 25m

$1,747

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 29/7

09:20-23:59

2 stops53h 39m

Lambert-St Louis

Sun 3/8

16:00-07:20

2 stops48h 20m

$1,920

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 29/7

09:20-20:00

2 stops25h 40m

Lambert-St Louis

Sun 3/8

19:38-06:55

1 stop20h 17m

$1,961

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 22/8

10:55-20:13

2 stops24h 18m

Lambert-St Louis

Fri 29/8

11:30-07:30

2 stops29h 00m

$2,119

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sat 23/8

13:50-23:09

2 stops24h 19m

Lambert-St Louis

Sat 30/8

06:45-10:40

2 stops36h 55m

$2,448

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 22/8

08:35-20:13

2 stops26h 38m

Lambert-St Louis

Fri 29/8

13:39-10:50

3 stops30h 11m

$2,561

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 29/7

17:45-23:30

1 stop20h 45m

Lambert-St Louis

Sun 3/8

06:14-07:30

1 stop34h 16m

$2,654

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sat 23/8

12:15-23:53

3 stops26h 38m

Lambert-St Louis

Sat 30/8

13:39-08:30

3 stops27h 51m

$2,798

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 28 results
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2
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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 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?

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 10 July 2025.

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

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 10 July 2025.
Read reviews from past customers who have flown with Japan Airlines, Emirates, andAir New Zealand 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.
Japan Airlines
8.3
Very Good
1,509 reviews
Check prices

Crew

8.7

Entertainment

7.8

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Japan Airlines
8.3
Very Good
1,509 reviews
Japan Airlines
8.3
Very Good
1,509 reviews
Check prices

Crew

8.7

Entertainment

7.8

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Emirates
8.1
Very Good
3,288 reviews
Japan Airlines
8.3
Very Good
1,509 reviews
Check prices

Crew

8.7

Entertainment

7.8

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Air New Zealand
8.0
Very Good
492 reviews
Japan Airlines
8.3
Very Good
1,509 reviews
Check prices

Crew

8.7

Entertainment

7.8

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Cathay Pacific
7.6
Good
929 reviews
Japan Airlines
8.3
Very Good
1,509 reviews
Check prices

Crew

8.7

Entertainment

7.8

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Qantas Airways
7.5
Good
873 reviews
Japan Airlines
8.3
Very Good
1,509 reviews
Check prices

Crew

8.7

Entertainment

7.8

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.

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?

    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 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 $1,068. However, be on the lookout for offers from Air Canada and Qantas Airways, 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

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Top 5 airlines flying from Australia to St. Louis

Discover the top 5 airlines 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 647,157 searches. Data last updated 10 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,360Average$2,221FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,449Average$1,887FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,495Average$1,788FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qantas AirwaysCheapest$1,674Average$2,489FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,834Average$3,169FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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

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

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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.

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