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$600+ Cheap flights from St. Louis (STL) to Australia

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from St. Louis to Australia

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Australia (AU0). 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 December 19, 2024.

Round-trip from

$1,167
(oojo)

One-way from

$600
(oojo)
From Lambert-St Louis to Australia
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One-way flight from Lambert-St Louis to Australia
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Find flight deals from St. Louis to Australia

Cheapest flights from St. Louis to Australia
Explore the most affordable flight options available from St. Louis to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Air Canada deal was found by Cheapflights users on 12/18. 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.
Mon 12/233:50 pmSTL - SYD
2 stops48h 45mAir Canada
Mon 12/3011:20 amSYD - STL
2 stops44h 46mAir Canada
Deal found 12/18$1,611
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Mon 12/308:30 amSTL - SYD
1 stop29h 30mUnited Airlines
Sun 1/1212:10 pmSYD - STL
1 stop23h 49mUnited Airlines
Deal found 12/18$2,057
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:04 amSTL - SYD
2 stops31h 46mDelta
Thu 1/911:05 amSYD - STL
2 stops39h 18mDelta
Deal found 12/18$2,121
This oojo deal was found by Cheapflights users on 12/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:45 pmSTL - MEL
2 stops35h 15mMultiple Airlines
Mon 12/306:15 amMEL - STL
2 stops34h 12mMultiple Airlines
Deal found 12/18$2,200
This United deal was found by Cheapflights users on 12/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/248:50 amSTL - MEL
1 stop32h 10mUnited Airlines
Mon 12/301:00 pmMEL - STL
1 stop28h 28mUnited Airlines
Deal found 12/18$2,340
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Fri 12/278:50 amSTL - BNE
1 stop30h 40mUnited Airlines
Sun 1/511:40 amBNE - STL
1 stop28h 48mUnited Airlines
Deal found 12/18$2,405
This Gurufare deal was found by Cheapflights users on 12/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:30 amSTL - SYD
1 stop33h 30mQantas Airways
Mon 12/3011:15 amSYD - STL
1 stop29h 12mQantas Airways
Deal found 12/18$2,599
This Fiji Airways deal was found by Cheapflights users on 12/18. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:36 amSTL - SYD
2 stops31h 54mMultiple Airlines
Sat 1/112:30 pmSYD - STL
2 stops25h 26mMultiple Airlines
Deal found 12/18$2,664
This oojo deal was found by Cheapflights users on 12/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/198:50 amSTL - SYD
1 stop31h 25mAir New Zealand
Thu 12/261:55 pmSYD - STL
2 stops27h 33mAir New Zealand
Deal found 12/18$2,889
This Justfly.com deal was found by Cheapflights users on 12/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/271:45 pmSTL - MEL
1 stop22h 55mQantas Airways
Sun 1/56:50 pmMEL - STL
2 stops35h 13mQantas Airways
Deal found 12/18$2,946
This Air Canada deal was found by Cheapflights users on 12/18. 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.
Tue 12/243:50 pmSTL - AVV
3 stops53h 20mMultiple Airlines
Mon 12/306:00 amAVV - STL
3 stops50h 06mMultiple Airlines
Deal found 12/18$3,208
This Emirates deal was found by Cheapflights users on 12/18. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:10 pmSTL - MEL
2 stops46h 15mEmirates
Sun 12/293:25 amMEL - STL
3 stops57h 32mEmirates
Deal found 12/18$3,678

Find flights from St. Louis to Australia within your budget

Customize your flight search to find flights from St. Louis to Australia 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 December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 3/11

5:27 pm-6:00 pm

2 stops32h 33m

Melbourne

Thu 3/27

6:15 am-7:25 pm

2 stops29h 10m

$1,167

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 2/1

3:50 pm-9:35 am

2 stops48h 45m

Sydney Kingsford Smith

Wed 2/5

11:20 am-3:06 pm

2 stops44h 46m

$1,234

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 1/18

5:12 pm-9:50 pm

2 stops35h 38m

Sydney Kingsford Smith

Fri 1/24

5:25 pm-11:59 pm

2 stops23h 34m

$1,351

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 3/11

5:27 pm-12:15 pm

2 stops26h 48m

Melbourne

Tue 3/25

1:45 pm-7:25 pm

2 stops21h 40m

$1,379

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 6/14

7:55 pm-11:45 am

2 stops24h 50m

Sydney Kingsford Smith

Sat 6/28

1:45 pm-8:16 pm

2 stops21h 31m

$1,402

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Mon 1/27

3:50 pm-8:40 am

2 stops48h 50m

Brisbane

Wed 2/5

6:10 am-3:06 pm

3 stops48h 56m

$1,459

St. LouisCanberra

STL - CBR

STLCBR

Lambert-St Louis

Sat 2/1

5:12 pm-7:00 am

3 stops44h 48m

Canberra

Sat 2/8

9:05 am-10:56 pm

3 stops30h 51m

$1,537

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 5/14

4:17 pm-11:00 am

2 stops27h 43m

Brisbane

Wed 5/21

12:15 pm-8:21 pm

2 stops23h 06m

$1,567

St. LouisHobart

STL - HBA

STLHBA

Lambert-St Louis

Sat 2/1

5:12 pm-9:05 am

3 stops46h 53m

Hobart

Sat 2/8

9:45 am-10:56 pm

3 stops30h 11m

$1,572

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 3/12

4:29 pm-1:50 pm

2 stops29h 21m

Melbourne

Wed 3/26

8:35 am-8:54 pm

2 stops28h 19m

$1,602

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 38 results
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Best time to book a flight from St. Louis to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from St. Louis 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 St. Louis to Australia

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

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to Australia (average of $1,051). Flying from St. Louis to Australia in December is currently the most expensive (average of $1,643). 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 STL to AU?

Find hourly flight availability from St. Louis to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

When flying from St. Louis to Australia, 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 Australia by month

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

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

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

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated December 19, 2024.
Get a feel of what it's like to fly with Air Canada, United Airlines and Fiji Airways from St. Louis to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
839 reviews

Boarding

8.6

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

ANA
8.4
Very good
839 reviews
ANA
8.4
Very good
839 reviews

Boarding

8.6

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Japan Airlines
8.3
Very good
1,442 reviews
ANA
8.4
Very good
839 reviews

Boarding

8.6

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Fiji Airways
8.1
Very good
191 reviews
ANA
8.4
Very good
839 reviews

Boarding

8.6

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Emirates
8.1
Very good
3,410 reviews
ANA
8.4
Very good
839 reviews

Boarding

8.6

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Delta
8.0
Very good
8,600 reviews
ANA
8.4
Very good
839 reviews

Boarding

8.6

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Australia. 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 from for flights from St. Louis to Australia?

    For a flight from St. Louis to Australia, you will be flying from 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 St. Louis to Australia one-way?

    To fly one-way, consider booking your trip with Fiji Airways, which is currently one of the cheapest options available, starting at $600. Air Canada flights start at $716 while deals on United Airlines start at $809 one-way.

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

    The most popular flight routes from St. Louis to Australia are Lambert-St Louis - Sydney Kingsford Smith, Lambert-St Louis - Melbourne and Lambert-St Louis - Melbourne Avalon.

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

    Yes. In addition to deals on St. Louis to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Australia.

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

    Yes. Cheapflights offers flight deals from St. Louis to Australia 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 St. Louis to Australia?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Australia (average of $1,051). Flying from St. Louis to Australia in December is currently the most expensive (average of $1,643). 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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Alternative routes for St. Louis to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from St. Louis to Australia

Discover the top 7 airlines that operate flights from St. Louis to Australia. 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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$687Average$1,948FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$924Average$1,594FlexibilityNo cancel feeOn-time69%
DeltaCheapest$942Average$1,551FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$962Average$1,297FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,134Average$1,632FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,322Average$1,744FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,559Average$1,715FlexibilityNo cancel feeOn-time68%
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