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Cheap flights from St. Louis (STL) to Australia from $1,145

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SYD
May 19 — May 261
From?
To?
Sun 5/19
Sun 5/26
1 adult, Economy
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How far in advance should I book a flight from St. Louis to Australia?

Users have found that booking a flight from St. Louis to Australia at least 61 days early can save you up to 109% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from St. Louis to Australia for as little as $989 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,954 for flights departing within the next 3 days.

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

The best pricing can be found in the month of February. Prices to Australia from St. Louis average $1,685. You can even find prices in February for less than $1,685, as users have found deals to Australia from as low as $1,194. The month of December appears to be one of the more expensive times to travel to Australia from St. Louis. Flying in the targeted month can save you up to 54%.

When is the cheapest time to fly from St. Louis to Australia (STL - AU)?

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.

Cheap Qantas Airways flights from St. Louis to Australia

Explore cheap flight options specifically provided by Qantas Airways for the route between St. Louis and Australia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Find some of the cheapest Qantas Airways flights traveling from St. Louis to Australia. It's recommended that users confirm their flight details before booking.
Fri 6/216:29 amSTL - SYD
1 stop34h 41mQantas Airways
Sat 7/135:35 pmSYD - STL
1 stop20h 32mQantas Airways
Deal found 5/13$1,519
Mon 6/246:29 amSTL - HBA
2 stops43h 36mQantas Airways
Fri 7/266:00 amHBA - STL
2 stops32h 07mQantas Airways
Deal found 5/13$1,621
Fri 6/216:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sat 7/137:00 amSYD - STL
2 stops31h 07mQantas Airways
Deal found 5/13$1,896
Tue 10/15:30 pmSTL - AVV
2 stops29h 40mQantas Airways
Tue 10/86:00 amAVV - STL
2 stops25h 40mQantas Airways
Deal found 5/13$2,027
Mon 6/106:29 amSTL - PER
2 stops44h 11mQantas Airways
Mon 9/96:30 amPER - STL
2 stops46h 10mQantas Airways
Deal found 5/13$2,044
Sat 6/16:02 pmSTL - MEL
2 stops30h 23mQantas Airways
Sun 6/99:15 pmMEL - STL
1 stop40h 43mQantas Airways
Deal found 5/12$2,401
Sat 6/16:02 pmSTL - MEL
1 stop21h 43mQantas Airways
Sun 6/99:15 pmMEL - STL
1 stop40h 43mQantas Airways
Deal found 5/12$2,511
Sun 5/266:02 pmSTL - MEL
2 stops25h 18mQantas Airways
Fri 5/319:15 pmMEL - STL
1 stop41h 02mQantas Airways
Deal found 5/12$2,735
Sat 5/187:20 pmSTL - SYD
1 stop19h 55mQantas Airways
Sat 5/259:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/13$2,754

Cheap American Airlines flights from St. Louis to Australia

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Australia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from St. Louis to Australia. Deals frequently update to provide users with more options.
Wed 8/147:00 amSTL - SYD
1 stop33h 05mAmerican Airlines
Sun 8/189:15 amSYD - STL
1 stop28h 27mAmerican Airlines
Deal found 5/12$2,737
Sat 5/186:02 pmSTL - SYD
1 stop22h 03mAmerican Airlines
Sat 5/259:15 amSYD - STL
2 stops25h 15mAmerican Airlines
Deal found 5/13$2,820

Cheap St. Louis to Australia flights in May & June 2024

Find cheap flight options from St. Louis to Australia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on May 14, 2024.
These are some of the best deals we've found on flights to Australia in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 6/911:00 amSTL - SYD
2 stops29h 20mAir Canada
Mon 7/299:20 amSYD - STL
2 stops50h 45mAir Canada
Deal found 5/12$1,145
Sun 6/911:00 amSTL - SYD
2 stops29h 20mAir Canada
Mon 7/299:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/12$1,151
Sun 6/911:00 amSTL - SYD
2 stops53h 20mAir Canada
Sun 6/169:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/12$1,261
Sun 6/911:00 amSTL - SYD
3 stops29h 20mAir Canada
Mon 7/299:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/12$1,270
Sun 6/911:00 amSTL - SYD
3 stops29h 20mAir Canada
Sun 6/169:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/12$1,379
Sun 6/96:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sun 6/169:15 amSYD - STL
1 stop28h 43mQantas Airways
Deal found 5/12$1,412
Mon 6/109:50 amSTL - PER
3 stops40h 05mMultiple Airlines
Mon 9/911:55 pmPER - STL
3 stops33h 05mMultiple Airlines
Deal found 5/13$1,477
Sun 6/99:23 amSTL - SYD
2 stops30h 42mAmerican Airlines
Sun 6/169:15 amSYD - STL
1 stop28h 43mAmerican Airlines
Deal found 5/12$1,488
Fri 6/214:45 pmSTL - SYD
2 stops23h 10mUnited Airlines
Sat 7/139:30 amSYD - STL
2 stops21h 58mUnited Airlines
Deal found 5/13$1,489

St. Louis to Australia 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Australia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
These are some of the best deals we've found on flights to Australia in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 6/911:00 amSTL - SYD
2 stops29h 20mAir Canada
Mon 7/299:20 amSYD - STL
2 stops50h 45mAir Canada
Deal found 5/12$1,145
Mon 8/512:00 pmSTL - SYD
2 stops28h 20mAir Canada
Sun 8/259:20 amSYD - STL
2 stops25h 41mAir Canada
Deal found 5/11$1,148
Sun 6/911:00 amSTL - SYD
2 stops29h 20mAir Canada
Mon 7/299:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/12$1,151
Sat 8/1712:00 pmSTL - SYD
2 stops52h 20mAir Canada
Fri 8/309:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/12$1,186
Sat 8/1712:00 pmSTL - SYD
3 stops52h 20mAir Canada
Fri 8/309:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/12$1,192
Sun 6/911:00 amSTL - SYD
2 stops53h 20mAir Canada
Sun 6/169:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/12$1,261
Sun 6/911:00 amSTL - SYD
3 stops29h 20mAir Canada
Mon 7/299:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/12$1,270
Sun 6/911:00 amSTL - SYD
3 stops29h 20mAir Canada
Sun 6/169:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/12$1,379
Mon 8/59:08 amSTL - SYD
2 stops30h 52mUnited Airlines
Sun 8/2510:20 amSYD - STL
1 stop21h 43mUnited Airlines
Deal found 5/11$1,389

St. Louis to Australia flights leaving soon

Find last-minute flight options from St. Louis to Australia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Book one of these great deals on flights from St. Louis to Australia. Users should examine the flight details to ensure there are no surprises.
Sat 5/1811:00 amSTL - SYD
2 stops29h 20mAir Canada
Sat 5/259:20 amSYD - STL
2 stops26h 45mAir Canada
Deal found 5/13$1,975
Sat 5/1811:00 amSTL - SYD
2 stops29h 20mAir Canada
Sat 5/259:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/13$2,060
Fri 5/249:50 amSTL - PER
3 stops40h 05mMultiple Airlines
Mon 5/2711:55 pmPER - STL
3 stops33h 06mMultiple Airlines
Deal found 5/13$2,443
Fri 5/245:08 pmSTL - PER
2 stops36h 27mMultiple Airlines
Mon 5/2711:10 pmPER - STL
2 stops61h 07mMultiple Airlines
Deal found 5/13$2,624
Sat 5/187:20 pmSTL - SYD
1 stop19h 55mQantas Airways
Sat 5/259:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/13$2,754
Sat 5/186:02 pmSTL - SYD
1 stop22h 03mAmerican Airlines
Sat 5/259:15 amSYD - STL
2 stops25h 15mAmerican Airlines
Deal found 5/13$2,820
Fri 5/248:55 amSTL - PER
3 stops48h 55mAir New Zealand
Mon 5/277:50 pmPER - STL
2 stops39h 25mAir New Zealand
Deal found 5/13$2,951
Fri 5/243:25 pmSTL - PER
3 stops34h 40mMultiple Airlines
Sun 5/261:45 amPER - STL
3 stops31h 40mMultiple Airlines
Deal found 5/13$3,696
Fri 5/2410:30 amSTL - PER
2 stops43h 05mMultiple Airlines
Sun 5/261:45 amPER - STL
3 stops31h 40mMultiple Airlines
Deal found 5/13$3,722

One-way flights to Australia from St. Louis

Search for one-way flight options from St. Louis to Australia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Australia, be sure to check out these deals, which are updated often. Users needing a return flight from St. Louis to Australia should utilize the search form above.
Fri 6/214:55 pmSTL - MEL
2 stops26h 55mAir New Zealand
Deal found 5/13$1,333
Wed 5/299:50 amSTL - MEL
3 stops34h 20mMultiple Airlines
Deal found 5/13$1,396
Wed 5/299:50 amSTL - AVV
3 stops39h 10mMultiple Airlines
Deal found 5/12$1,428
Fri 6/2111:00 amSTL - MEL
3 stops33h 05mAir Canada
Deal found 5/13$1,440
Wed 5/296:02 pmSTL - AVV
2 stops37h 48mQantas Airways
Deal found 5/12$1,468
Fri 6/2111:00 amSTL - AVV
3 stops36h 10mMultiple Airlines
Deal found 5/12$1,472
Fri 6/216:29 amSTL - AVV
2 stops40h 41mQantas Airways
Deal found 5/12$1,496
Wed 5/296:02 pmSTL - MEL
2 stops25h 33mQantas Airways
Deal found 5/13$1,509
Fri 6/216:29 amSTL - MEL
1 stop32h 16mQantas Airways
Deal found 5/13$1,601

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 2,633,403 searches. Data last updated May 14, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,192 - $2,737

Route

Depart

Return

Price

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sat 11/9

2 stops48h 10m

Sydney Kingsford Smith

Fri 11/22

2 stops39h 33m

$1,192

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Wed 8/14

2 stops30h 10m

Sydney Kingsford Smith

Sun 8/18

2 stops45h 01m

$1,417

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sat 11/9

2 stops45h 30m

Sydney Kingsford Smith

Fri 11/22

1 stop20h 51m

$1,439

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sat 11/9

1 stop42h 11m

Sydney Kingsford Smith

Fri 11/22

1 stop29h 17m

$1,447

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 6/10

3 stops40h 05m

Perth

Mon 9/9

3 stops33h 05m

$1,477

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Fri 6/21

1 stop34h 41m

Sydney Kingsford Smith

Sat 7/13

1 stop20h 32m

$1,519

Lambert-St LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 10/6

2 stops31h 09m

Melbourne

Wed 11/27

2 stops63h 00m

$1,970

Lambert-St LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 6/1

2 stops32h 35m

Melbourne

Sun 6/9

2 stops28h 30m

$2,219

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Wed 8/14

1 stop33h 05m

Sydney Kingsford Smith

Sun 8/18

1 stop28h 27m

$2,737

Flights are sorted by cheapest first

Deals found on 5/13

No data available for this route at this time. Please check back soon.

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 May 14, 2024.
Get a feel of what it's like to fly with Qantas Airways, American Airlines and Air Canada 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.
Air New Zealand
8.3
Very good
630 reviews
Check prices

Boarding

8.4

Comfort

8.1

Crew

8.8

Entertainment

7.9

Food

7.6

Overall

8.3

Reviews

1 / 10

The crew, food, and entertainment were amazing. The leg room/distance from the row in front of you seems smaller than other airlines which is very uncomfortable.

Air New Zealand
8.3
Very good
630 reviews
Air New Zealand
8.3
Very good
630 reviews
Check prices

Boarding

8.4

Comfort

8.1

Crew

8.8

Entertainment

7.9

Food

7.6

Overall

8.3

Reviews

1 / 10

The crew, food, and entertainment were amazing. The leg room/distance from the row in front of you seems smaller than other airlines which is very uncomfortable.

Emirates
8.1
Very good
3,963 reviews
Air New Zealand
8.3
Very good
630 reviews
Check prices

Boarding

8.4

Comfort

8.1

Crew

8.8

Entertainment

7.9

Food

7.6

Overall

8.3

Reviews

1 / 10

The crew, food, and entertainment were amazing. The leg room/distance from the row in front of you seems smaller than other airlines which is very uncomfortable.

Cathay Pacific
7.8
Good
1,086 reviews
Air New Zealand
8.3
Very good
630 reviews
Check prices

Boarding

8.4

Comfort

8.1

Crew

8.8

Entertainment

7.9

Food

7.6

Overall

8.3

Reviews

1 / 10

The crew, food, and entertainment were amazing. The leg room/distance from the row in front of you seems smaller than other airlines which is very uncomfortable.

Qantas Airways
7.7
Good
971 reviews
Air New Zealand
8.3
Very good
630 reviews
Check prices

Boarding

8.4

Comfort

8.1

Crew

8.8

Entertainment

7.9

Food

7.6

Overall

8.3

Reviews

1 / 10

The crew, food, and entertainment were amazing. The leg room/distance from the row in front of you seems smaller than other airlines which is very uncomfortable.

United Airlines
7.4
Good
10,980 reviews
Air New Zealand
8.3
Very good
630 reviews
Check prices

Boarding

8.4

Comfort

8.1

Crew

8.8

Entertainment

7.9

Food

7.6

Overall

8.3

Reviews

1 / 10

The crew, food, and entertainment were amazing. The leg room/distance from the row in front of you seems smaller than other airlines which is very uncomfortable.

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.

  • Can I find flights from St. Louis to Australia for under $1,200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Australia for under $1,200. The cheapest flight booked recently is on Air Canada for just $1,192, but on average you can expect to pay $1,636.

  • Are there last-minute flights available from St. Louis to Australia for under $2,000?

    There are currently 10+ open flights from St. Louis to Australia within the next 7 days for less than $2,000.

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

    To fly one-way, consider booking your trip with Air New Zealand, which is currently one of the cheapest options available, starting at $1,333. Air Canada flights start at $1,440 while deals on Qantas Airways start at $1,468 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.

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

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

  • What does STL to SYD mean?

    STL and SYD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SYD refers to a flight route from Lambert-St Louis Airport to Sydney Kingsford Smith Airport. Melbourne Airport (MEL), Brisbane Airport (BNE), Perth Airport (PER), Adelaide Airport (ADL), Coolangatta Gold Coast Airport (OOL) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from St. Louis to Australia that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Australia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Australia with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Australia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Australia that allow pets onboard?

    Many airlines flying from St. Louis to Australia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Australia?

    Yes, you can often find last-minute deals on St. Louis to Australia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Australia flight deals updated?

    The St. Louis to Australia flight deals you see on this page were last updated on 5/13.

See more FAQs

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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 6 airlines flying from St. Louis to Australia

Discover the top 6 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 2,633,403 searches. Data last updated May 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$924Average$1,407FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,013Average$1,535FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,141Average$1,395FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,214Average$1,545FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,257Average$2,191FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,421Average$1,841FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
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Search flights from St. Louis to Australia by cabin class

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

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Australia from St. Louis today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Australia.

Can Cheapflights find flights from St. Louis to Australia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Australia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Australia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Australia from St. Louis today and book when prices fit your budget.

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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.
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