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Cheap flights from St. Louis (STL) to Australia from $855

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 10/31. 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
Jun 12 — Jun 191
From?
To?
Wed 6/12
Wed 6/19
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 $1,669. You can even find prices in February for less than $1,669, as users have found deals to Australia from as low as $1,195. 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 50%.

What is the cheapest time of day to fly from STL to 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 St. Louis to Australia flights in June & July 2024

Find cheap flight options from St. Louis to Australia specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,048,502 searches. Prices were last updated on June 7, 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.
Wed 6/2612:44 pmSTL - SYD
2 stops27h 21mAmerican Airlines
Sun 7/79:15 amSYD - STL
1 stop28h 52mAmerican Airlines
Deal found 6/5$1,462
Wed 6/266:29 amSTL - SYD
1 stop33h 36mAmerican Airlines
Sun 7/79:15 amSYD - STL
1 stop28h 52mAmerican Airlines
Deal found 6/5$1,469
Fri 6/216:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sat 7/139:15 amSYD - STL
1 stop28h 52mQantas Airways
Deal found 6/6$1,722
Mon 7/86:29 amSTL - MEL
1 stop32h 16mQantas Airways
Sat 7/2011:55 amMEL - STL
1 stop26h 12mQantas Airways
Deal found 6/6$1,723
Mon 7/88:05 amSTL - MEL
2 stops33h 10mUnited Airlines
Sat 7/2010:55 amMEL - STL
2 stops26h 22mUnited Airlines
Deal found 6/6$1,821
Fri 6/2111:38 amSTL - SYD
2 stops28h 22mUnited Airlines
Sat 7/1310:20 amSYD - STL
2 stops45h 08mUnited Airlines
Deal found 6/6$1,860
Mon 7/810:10 amSTL - MEL
3 stops34h 15mMultiple Airlines
Sat 7/208:50 pmMEL - STL
3 stops38h 11mMultiple Airlines
Deal found 6/6$1,905
Mon 7/810:10 amSTL - MEL
3 stops34h 25mMultiple Airlines
Sat 7/208:50 pmMEL - STL
3 stops38h 11mMultiple Airlines
Deal found 6/5$1,907
Sun 7/76:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sat 7/1310:00 pmSYD - STL
2 stops40h 07mQantas Airways
Deal found 6/6$1,935

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 3,048,502 searches. Data last updated June 7, 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 11/310:40 amSTL - SYD
1 stop29h 55mAir Canada
Sat 11/911:20 amSYD - STL
2 stops39h 33mAir Canada
Deal found 6/6$1,244
Sun 10/2010:10 amSTL - AVV
3 stops37h 50mMultiple Airlines
Sat 11/28:55 pmAVV - STL
3 stops53h 58mMultiple Airlines
Deal found 6/6$1,377
Mon 9/1610:10 amSTL - SYD
2 stops30h 10mAir Canada
Mon 9/239:20 amSYD - STL
2 stops45h 00mAir Canada
Deal found 6/5$1,381
Sun 11/2411:05 amSTL - SYD
2 stops30h 20mAir New Zealand
Sun 12/17:15 pmSYD - STL
2 stops44h 00mAir New Zealand
Deal found 6/4$1,384
Sat 11/238:50 amSTL - SYD
2 stops32h 35mAir New Zealand
Mon 12/29:55 amSYD - STL
2 stops41h 32mAir New Zealand
Deal found 6/4$1,386
Sat 11/237:09 pmSTL - SYD
2 stops48h 36mAir New Zealand
Sun 12/17:15 pmSYD - STL
2 stops44h 00mAir New Zealand
Deal found 6/6$1,390
Sat 11/2311:05 amSTL - SYD
2 stops30h 20mAir New Zealand
Sun 12/17:15 pmSYD - STL
2 stops44h 00mAir New Zealand
Deal found 6/4$1,431
Sun 10/2010:10 amSTL - MEL
3 stops33h 35mMultiple Airlines
Sat 11/26:00 amMEL - STL
3 stops44h 53mMultiple Airlines
Deal found 6/6$1,457
Sun 10/2010:10 amSTL - MEL
3 stops33h 35mMultiple Airlines
Sat 11/26:00 amMEL - STL
3 stops44h 53mMultiple Airlines
Deal found 6/5$1,458

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 3,048,502 searches. Data last updated June 7, 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.
Thu 6/201:42 pmSTL - SYD
2 stops26h 18mUnited Airlines
Thu 6/2710:20 amSYD - STL
2 stops26h 54mUnited Airlines
Deal found 6/5$2,136
Thu 6/206:29 amSTL - SYD
1 stop33h 36mQantas Airways
Thu 6/279:15 amSYD - STL
1 stop28h 43mQantas Airways
Deal found 6/6$2,281
Thu 6/206:29 amSTL - SYD
2 stops36h 26mQantas Airways
Thu 6/279:15 amSYD - STL
1 stop28h 43mQantas Airways
Deal found 6/5$2,406
Thu 6/206:29 amSTL - SYD
1 stop33h 36mAmerican Airlines
Thu 6/279:15 amSYD - STL
1 stop28h 43mAmerican Airlines
Deal found 6/5$2,436
Tue 6/1111:15 amSTL - MEL
2 stops32h 35mAir New Zealand
Fri 6/216:15 pmMEL - STL
2 stops54h 38mAir New Zealand
Deal found 6/6$2,558
Thu 6/209:50 amSTL - SYD
3 stops54h 30mAir Canada
Thu 6/279:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 6/5$2,569
Thu 6/209:05 amSTL - SYD
3 stops32h 40mMultiple Airlines
Thu 6/278:45 amSYD - STL
3 stops28h 26mMultiple Airlines
Deal found 6/5$2,644
Tue 6/116:29 amSTL - MEL
1 stop32h 16mQantas Airways
Fri 6/219:00 pmMEL - STL
2 stops40h 58mQantas Airways
Deal found 6/6$2,781
Tue 6/116:29 amSTL - AVV
2 stops40h 41mMultiple Airlines
Fri 6/214:35 pmAVV - STL
2 stops45h 23mMultiple Airlines
Deal found 6/6$2,958

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 3,048,502 searches. Data last updated June 7, 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.
Thu 10/317:29 pmSTL - SYD
2 stops32h 16mMultiple Airlines
Deal found 6/5$855
Fri 11/11:59 pmSTL - SYD
3 stops30h 31mMultiple Airlines
Deal found 6/5$1,013
Wed 11/206:02 pmSTL - SYD
1 stop20h 28mQantas Airways
Deal found 6/6$1,026
Wed 10/307:23 pmSTL - SYD
1 stop21h 37mAmerican Airlines
Deal found 6/5$1,027
Wed 11/205:43 amSTL - SYD
2 stops34h 17mAmerican Airlines
Deal found 6/6$1,033
Wed 11/2011:58 amSTL - SYD
3 stops28h 17mMultiple Airlines
Deal found 6/6$1,039
Fri 11/17:09 pmSTL - SYD
1 stop67h 11mUnited Airlines
Deal found 6/5$1,058
Fri 11/14:30 pmSTL - SYD
2 stops70h 30mUnited Airlines
Deal found 6/5$1,067
Thu 11/2111:58 amSTL - SYD
1 stop26h 32mQantas Airways
Deal found 6/6$1,090

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 3,048,502 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,244 - $1,748

Route

Depart

Return

Price

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sun 11/3

1 stop29h 55m

Sydney Kingsford Smith

Sat 11/9

2 stops39h 33m

$1,244

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Mon 8/12

2 stops35h 25m

Sydney Kingsford Smith

Mon 8/19

2 stops23h 46m

$1,338

Lambert-St LouisMelbourne Avalon

STL - AVV

STLAVV

Lambert-St Louis

Sun 10/20

3 stops37h 50m

Melbourne Avalon

Sat 11/2

3 stops53h 58m

$1,377

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sat 11/23

2 stops48h 36m

Sydney Kingsford Smith

Sun 12/1

2 stops44h 00m

$1,390

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Mon 8/12

3 stops52h 20m

Sydney Kingsford Smith

Mon 8/19

2 stops45h 01m

$1,432

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Mon 8/12

2 stops23h 47m

Sydney Kingsford Smith

Mon 8/19

1 stop28h 27m

$1,462

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Mon 8/12

1 stop33h 05m

Sydney Kingsford Smith

Mon 8/19

1 stop28h 27m

$1,629

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/4

2 stops46h 35m

Perth

Fri 10/11

2 stops38h 13m

$1,722

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sat 11/23

1 stop42h 11m

Sydney Kingsford Smith

Sun 12/1

1 stop21h 46m

$1,748

Flights are sorted by cheapest first

Deals found on 6/6

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

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.

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 June 7, 2024.
Get a feel of what it's like to fly with United Airlines, Air New Zealand 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
603 reviews

Crew

8.7

Overall

8.3

Comfort

8.1

Entertainment

7.9

Boarding

8.4

Food

7.6

Reviews

1 / 10

Terrible. Boarding pass priority boarding. Got no service, no food which looked yucky, why seat people in first class then treat them low class?

Air New Zealand
8.3
Very good
603 reviews
Air New Zealand
8.3
Very good
603 reviews

Crew

8.7

Overall

8.3

Comfort

8.1

Entertainment

7.9

Boarding

8.4

Food

7.6

Reviews

1 / 10

Terrible. Boarding pass priority boarding. Got no service, no food which looked yucky, why seat people in first class then treat them low class?

Qatar Airways
7.7
Good
4,314 reviews
Air New Zealand
8.3
Very good
603 reviews

Crew

8.7

Overall

8.3

Comfort

8.1

Entertainment

7.9

Boarding

8.4

Food

7.6

Reviews

1 / 10

Terrible. Boarding pass priority boarding. Got no service, no food which looked yucky, why seat people in first class then treat them low class?

Qantas Airways
7.6
Good
936 reviews
Air New Zealand
8.3
Very good
603 reviews

Crew

8.7

Overall

8.3

Comfort

8.1

Entertainment

7.9

Boarding

8.4

Food

7.6

Reviews

1 / 10

Terrible. Boarding pass priority boarding. Got no service, no food which looked yucky, why seat people in first class then treat them low class?

LATAM Airlines
7.5
Good
2,319 reviews
Air New Zealand
8.3
Very good
603 reviews

Crew

8.7

Overall

8.3

Comfort

8.1

Entertainment

7.9

Boarding

8.4

Food

7.6

Reviews

1 / 10

Terrible. Boarding pass priority boarding. Got no service, no food which looked yucky, why seat people in first class then treat them low class?

United Airlines
7.4
Good
10,696 reviews
Air New Zealand
8.3
Very good
603 reviews

Crew

8.7

Overall

8.3

Comfort

8.1

Entertainment

7.9

Boarding

8.4

Food

7.6

Reviews

1 / 10

Terrible. Boarding pass priority boarding. Got no service, no food which looked yucky, why seat people in first class then treat them low class?

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 $1,300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Australia for under $1,300. The cheapest flight booked recently is on Air Canada for just $1,244, but on average you can expect to pay $1,614.

  • Are there last-minute flights available from St. Louis to Australia for under $2,200?

    There are currently 15+ open flights from St. Louis to Australia within the next 7 days for less than $2,200.

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

    To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $1,026. American Airlines flights start at $1,027 while deals on United Airlines start at $1,058 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 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 6/6.

  • 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 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 $1,093). Flying from St. Louis to Australia in July is currently the most expensive (average of $1,373). 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

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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 3,048,502 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$924Average$1,448FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,005Average$1,847FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$1,085Average$1,370FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,204Average$1,520FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,257Average$2,190FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,385Average$1,775FlexibilityNo cancel feeOn-time78%
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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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