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Cheap flights from St. Louis (STL) to Australia from $1,054

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 10/19. 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 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
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 Air Canada flights from St. Louis to Australia

Explore cheap flight options specifically provided by Air Canada 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 2,637,452 searches. Data last updated May 16, 2024.
Find some of the cheapest Air Canada flights traveling from St. Louis to Australia. It's recommended that users confirm their flight details before booking.
Sun 11/310:40 amSTL - SYD
2 stops29h 40mAir Canada
Wed 11/1311:20 amSYD - STL
2 stops39h 33mAir Canada
Deal found 5/15$1,153
Wed 8/144:05 pmSTL - SYD
2 stops48h 15mAir Canada
Sun 8/189:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/14$1,468
Fri 6/219:50 amSTL - SYD
2 stops30h 30mAir Canada
Sat 7/139:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/15$1,490
Fri 6/219:50 amSTL - SYD
3 stops54h 30mAir Canada
Sat 7/139:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/15$1,496
Sat 7/612:00 pmSTL - SYD
2 stops52h 20mAir Canada
Sat 7/279:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/15$1,580
Sat 7/612:00 pmSTL - SYD
3 stops52h 20mAir Canada
Sat 7/279:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/15$1,586
Wed 10/304:10 pmSTL - CNS
3 stops54h 55mAir Canada
Sun 11/35:35 pmCNS - STL
3 stops61h 48mAir Canada
Deal found 5/15$1,602
Wed 10/304:10 pmSTL - CNS
3 stops54h 55mAir Canada
Sun 11/35:35 pmCNS - STL
3 stops56h 18mAir Canada
Deal found 5/14$1,603
Tue 11/1210:40 amSTL - BNE
2 stops29h 55mAir Canada
Sat 11/1610:45 amBNE - STL
2 stops44h 38mAir Canada
Deal found 5/14$1,620

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 2,637,452 searches. Data last updated May 16, 2024.
Take a gander at the lowest prices we've found on Qantas Airways flights from St. Louis to Australia. Deals frequently update to provide users with more options.
Sun 11/37:23 pmSTL - SYD
1 stop20h 37mQantas Airways
Wed 11/1311:15 amSYD - STL
1 stop28h 45mQantas Airways
Deal found 5/15$1,311
Sat 5/256:02 pmSTL - SYD
1 stop22h 03mQantas Airways
Fri 5/319:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/15$1,399
Fri 6/216:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sat 7/135:35 pmSYD - STL
1 stop20h 32mQantas Airways
Deal found 5/15$1,424
Fri 6/216:29 amSTL - SYD
1 stop34h 41mQantas Airways
Sat 7/135:35 pmSYD - STL
1 stop20h 32mQantas Airways
Deal found 5/16$1,425
Tue 10/225:30 pmSTL - SYD
1 stop22h 40mQantas Airways
Thu 10/3111:15 amSYD - STL
1 stop27h 45mQantas Airways
Deal found 5/16$1,432
Wed 8/147:00 amSTL - SYD
1 stop33h 05mQantas Airways
Sun 8/189:15 amSYD - STL
1 stop28h 27mQantas Airways
Deal found 5/15$1,447
Mon 6/246:29 amSTL - HBA
2 stops47h 46mQantas Airways
Fri 7/266:00 amHBA - STL
2 stops32h 07mQantas Airways
Deal found 5/16$1,542
Sat 7/66:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sat 7/279:15 amSYD - STL
1 stop28h 52mQantas Airways
Deal found 5/15$1,636
Sat 5/256:02 pmSTL - SYD
2 stops26h 53mQantas Airways
Fri 5/319:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/15$1,705

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 2,637,452 searches. Prices were last updated on May 16, 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.
Sat 5/256:02 pmSTL - SYD
1 stop22h 03mQantas Airways
Fri 5/319:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/15$1,399
Fri 6/216:29 amSTL - SYD
1 stop33h 36mQantas Airways
Sat 7/135:35 pmSYD - STL
1 stop20h 32mQantas Airways
Deal found 5/15$1,424
Fri 6/216:29 amSTL - SYD
1 stop34h 41mQantas Airways
Sat 7/135:35 pmSYD - STL
1 stop20h 32mQantas Airways
Deal found 5/16$1,425
Fri 5/311:10 pmSTL - SYD
2 stops26h 50mUnited Airlines
Tue 6/410:20 amSYD - STL
2 stops21h 09mUnited Airlines
Deal found 5/15$1,426
Fri 6/214:55 pmSTL - SYD
2 stops23h 00mUnited Airlines
Sat 7/1310:20 amSYD - STL
2 stops26h 17mUnited Airlines
Deal found 5/16$1,489
Fri 6/219:50 amSTL - SYD
2 stops30h 30mAir Canada
Sat 7/139:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/15$1,490
Fri 6/219:50 amSTL - SYD
3 stops54h 30mAir Canada
Sat 7/139:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/15$1,496
Mon 6/246:29 amSTL - HBA
2 stops47h 46mQantas Airways
Fri 7/266:00 amHBA - STL
2 stops32h 07mQantas Airways
Deal found 5/16$1,542
Fri 6/213:27 pmSTL - SYD
2 stops24h 38mAmerican Airlines
Sat 7/139:15 amSYD - STL
1 stop28h 52mAmerican Airlines
Deal found 5/16$1,562

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 2,637,452 searches. Data last updated May 16, 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
2 stops29h 40mAir Canada
Wed 11/1311:20 amSYD - STL
2 stops39h 33mAir Canada
Deal found 5/15$1,153
Sun 11/37:23 pmSTL - SYD
1 stop20h 37mQantas Airways
Wed 11/1311:15 amSYD - STL
1 stop28h 45mQantas Airways
Deal found 5/15$1,311
Sun 9/86:15 amSTL - SYD
2 stops37h 20mAir New Zealand
Mon 9/169:55 amSYD - STL
2 stops27h 18mAir New Zealand
Deal found 5/16$1,324
Sun 9/85:30 pmSTL - SYD
1 stop22h 35mAmerican Airlines
Mon 9/169:10 amSYD - STL
1 stop21h 30mAmerican Airlines
Deal found 5/16$1,384
Wed 11/137:09 pmSTL - MEL
1 stop21h 51mUnited Airlines
Sun 11/171:00 pmMEL - STL
1 stop28h 27mUnited Airlines
Deal found 5/15$1,386
Sun 9/82:38 pmSTL - SYD
2 stops25h 27mAmerican Airlines
Mon 9/169:10 amSYD - STL
1 stop21h 30mAmerican Airlines
Deal found 5/16$1,387
Wed 8/1412:38 pmSTL - SYD
2 stops27h 27mAmerican Airlines
Sun 8/189:15 amSYD - STL
2 stops24h 46mAmerican Airlines
Deal found 5/15$1,388
Wed 11/137:09 pmSTL - MEL
1 stop21h 51mUnited Airlines
Sun 11/1711:30 amMEL - STL
2 stops21h 56mUnited Airlines
Deal found 5/15$1,390
Sat 5/256:02 pmSTL - SYD
1 stop22h 03mQantas Airways
Fri 5/319:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/15$1,399

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 2,637,452 searches. Data last updated May 16, 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 5/256:02 pmSTL - SYD
1 stop22h 03mQantas Airways
Fri 5/319:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/15$1,399
Sat 5/256:02 pmSTL - SYD
2 stops26h 53mQantas Airways
Fri 5/319:15 amSYD - STL
1 stop29h 02mQantas Airways
Deal found 5/15$1,705
Sat 5/256:02 pmSTL - SYD
2 stops24h 53mQantas Airways
Fri 5/316:45 pmSYD - STL
2 stops43h 32mQantas Airways
Deal found 5/15$1,938
Sat 5/2511:00 amSTL - SYD
3 stops53h 20mAir Canada
Fri 5/319:20 amSYD - STL
2 stops26h 45mAir Canada
Deal found 5/15$2,014
Sat 5/2511:00 amSTL - SYD
3 stops53h 20mAir Canada
Fri 5/319:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/15$2,177

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 2,637,452 searches. Data last updated May 16, 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.
Sat 10/199:00 amSTL - SYD
2 stops54h 55mUnited Airlines
Deal found 5/16$1,054
Sat 10/1912:10 pmSTL - SYD
1 stop26h 05mMultiple Airlines
Deal found 5/16$1,092
Sat 10/191:39 pmSTL - SYD
3 stops27h 06mMultiple Airlines
Deal found 5/16$1,223
Fri 6/218:55 amSTL - MEL
2 stops34h 55mAir New Zealand
Deal found 5/16$1,307
Fri 6/214:55 pmSTL - MEL
2 stops26h 55mAir New Zealand
Deal found 5/15$1,333
Fri 6/215:27 pmSTL - MEL
1 stop20h 58mQantas Airways
Deal found 5/16$1,467
Fri 6/2111:00 amSTL - MEL
3 stops32h 35mMultiple Airlines
Deal found 5/15$1,483
Fri 6/216:29 amSTL - AVV
2 stops40h 41mQantas Airways
Deal found 5/15$1,496
Fri 6/2111:00 amSTL - AVV
3 stops42h 15mMultiple Airlines
Deal found 5/15$1,514

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,153 - $1,971

Route

Depart

Return

Price

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sun 11/3

2 stops29h 40m

Sydney Kingsford Smith

Wed 11/13

2 stops39h 33m

$1,153

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sun 11/3

1 stop20h 37m

Sydney Kingsford Smith

Wed 11/13

1 stop28h 45m

$1,311

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sun 9/8

2 stops37h 20m

Sydney Kingsford Smith

Mon 9/16

2 stops27h 18m

$1,324

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sun 9/8

1 stop22h 35m

Sydney Kingsford Smith

Mon 9/16

1 stop21h 30m

$1,384

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sun 9/8

2 stops25h 27m

Sydney Kingsford Smith

Mon 9/16

1 stop21h 30m

$1,387

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Tue 10/22

2 stops25h 34m

Sydney Kingsford Smith

Thu 10/31

2 stops24h 30m

$1,418

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Fri 5/31

2 stops26h 50m

Sydney Kingsford Smith

Tue 6/4

2 stops21h 09m

$1,426

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Tue 10/22

3 stops27h 06m

Sydney Kingsford Smith

Thu 10/31

2 stops24h 30m

$1,523

Lambert-St LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 10/6

2 stops31h 09m

Melbourne

Wed 11/27

2 stops63h 00m

$1,971

Flights are sorted by cheapest first

Deals found on 5/15

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 16, 2024.
Get a feel of what it's like to fly with Air Canada, Qantas Airways and United Airlines 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.
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Food

7.9

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Japan Airlines
8.3
Very good
1,472 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Food

7.9

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Air New Zealand
8.3
Very good
626 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Food

7.9

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Cathay Pacific
7.8
Good
1,084 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Food

7.9

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Qatar Airways
7.7
Good
4,387 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Food

7.9

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Qantas Airways
7.6
Good
967 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Food

7.9

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

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 $1,153, but on average you can expect to pay $1,412.

  • Are there last-minute flights available from St. Louis to Australia for under $1,400?

    There are currently 5+ open flights from St. Louis to Australia within the next 7 days for less than $1,400.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $1,054. Air New Zealand flights start at $1,307 while deals on Qantas Airways start at $1,467 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 5/16.

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 2,637,452 searches. Data last updated May 16, 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.
First Class
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Fly with Cheapflights

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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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