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Cheap flights from St. Louis (STL) to Australia from $918

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 8/14. 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 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
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 $1,676. You can even find prices in February for less than $1,676, 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 55%.

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 United Airlines flights from St. Louis to Australia

Explore cheap flight options specifically provided by United 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 2,784,634 searches. Data last updated May 30, 2024.
Find some of the cheapest United Airlines flights traveling from St. Louis to Australia. It's recommended that users confirm their flight details before booking.
Wed 8/149:08 amSTL - SYD
2 stops30h 47mUnited Airlines
Tue 9/310:20 amSYD - STL
1 stop21h 43mUnited Airlines
Deal found 5/29$1,330
Sat 7/64:36 pmSTL - SYD
2 stops47h 24mUnited Airlines
Sat 7/2710:20 amSYD - STL
2 stops24h 17mUnited Airlines
Deal found 5/29$1,396
Fri 8/166:08 amSTL - SYD
2 stops33h 52mUnited Airlines
Fri 8/2310:20 amSYD - STL
1 stop29h 07mUnited Airlines
Deal found 5/29$1,425
Thu 6/276:30 amSTL - SYD
2 stops33h 30mUnited Airlines
Thu 7/410:20 amSYD - STL
2 stops39h 05mUnited Airlines
Deal found 5/28$1,430
Sun 10/277:09 pmSTL - HBA
2 stops31h 56mUnited Airlines
Mon 11/46:35 amHBA - STL
2 stops34h 52mUnited Airlines
Deal found 5/29$1,544
Thu 10/246:05 pmSTL - HBA
2 stops34h 00mUnited Airlines
Sun 11/39:20 pmHBA - STL
2 stops44h 07mUnited Airlines
Deal found 5/29$1,606
Sat 10/267:15 amSTL - HBA
2 stops36h 40mUnited Airlines
Mon 11/46:35 amHBA - STL
2 stops34h 52mUnited Airlines
Deal found 5/29$1,607

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 2,784,634 searches. Data last updated May 30, 2024.
Take a gander at the lowest prices we've found on Air Canada flights from St. Louis to Australia. Deals frequently update to provide users with more options.
Wed 8/1412:00 pmSTL - SYD
3 stops52h 20mAir Canada
Tue 9/39:20 amSYD - STL
2 stops45h 00mAir Canada
Deal found 5/29$1,423
Fri 8/1612:00 pmSTL - SYD
3 stops52h 20mAir Canada
Fri 8/239:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/29$1,465
Fri 8/2312:00 pmSTL - SYD
2 stops28h 20mAir Canada
Wed 8/289:20 amSYD - STL
2 stops50h 45mAir Canada
Deal found 5/30$1,539
Fri 8/2312:00 pmSTL - SYD
3 stops52h 20mAir Canada
Wed 8/289:20 amSYD - STL
2 stops50h 45mAir Canada
Deal found 5/30$1,545
Sat 7/611:30 amSTL - SYD
2 stops52h 50mAir Canada
Sat 7/279:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/29$1,583
Sat 7/611:30 amSTL - SYD
3 stops52h 50mAir Canada
Sat 7/279:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/29$1,588
Thu 6/2711:00 amSTL - SYD
2 stops29h 20mAir Canada
Thu 7/49:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/28$1,746
Fri 7/511:30 amSTL - SYD
3 stops52h 50mAir Canada
Fri 7/129:20 amSYD - STL
2 stops26h 45mAir Canada
Deal found 5/29$1,933

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 2,784,634 searches. Prices were last updated on May 30, 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.
Thu 6/276:29 amSTL - SYD
1 stop34h 41mQantas Airways
Thu 7/45:35 pmSYD - STL
1 stop20h 23mQantas Airways
Deal found 5/28$1,426
Thu 6/276:30 amSTL - SYD
2 stops33h 30mUnited Airlines
Thu 7/410:20 amSYD - STL
2 stops39h 05mUnited Airlines
Deal found 5/28$1,430
Fri 6/216:06 amSTL - SYD
2 stops33h 29mDelta
Sat 7/139:25 amSYD - STL
2 stops29h 14mDelta
Deal found 5/29$1,512
Thu 6/276:29 amSTL - SYD
1 stop33h 36mAmerican Airlines
Thu 7/49:15 amSYD - STL
2 stops39h 33mAmerican Airlines
Deal found 5/28$1,582
Thu 6/276:29 amSTL - AVV
2 stops42h 31mMultiple Airlines
Thu 7/46:00 amAVV - STL
2 stops31h 58mMultiple Airlines
Deal found 5/30$1,745
Thu 6/2711:00 amSTL - SYD
2 stops29h 20mAir Canada
Thu 7/49:20 amSYD - STL
3 stops50h 45mAir Canada
Deal found 5/28$1,746
Fri 6/214:55 pmSTL - SYD
2 stops24h 50mAir New Zealand
Sat 7/1311:50 amSYD - STL
2 stops25h 27mAir New Zealand
Deal found 5/30$2,120
Sun 6/24:55 pmSTL - SYD
2 stops24h 50mAir New Zealand
Tue 6/411:50 amSYD - STL
2 stops23h 35mAir New Zealand
Deal found 5/29$2,172
Sun 6/26:15 amSTL - SYD
2 stops35h 30mAir New Zealand
Tue 6/411:50 amSYD - STL
2 stops25h 25mAir New Zealand
Deal found 5/29$2,183

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 2,784,634 searches. Data last updated May 30, 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 8/149:08 amSTL - SYD
2 stops30h 47mUnited Airlines
Tue 9/310:20 amSYD - STL
1 stop21h 43mUnited Airlines
Deal found 5/29$1,330
Sat 7/64:36 pmSTL - SYD
2 stops47h 24mUnited Airlines
Sat 7/2710:20 amSYD - STL
2 stops24h 17mUnited Airlines
Deal found 5/29$1,396
Wed 8/1412:00 pmSTL - SYD
3 stops52h 20mAir Canada
Tue 9/39:20 amSYD - STL
2 stops45h 00mAir Canada
Deal found 5/29$1,423
Fri 8/166:08 amSTL - SYD
2 stops33h 52mUnited Airlines
Fri 8/2310:20 amSYD - STL
1 stop29h 07mUnited Airlines
Deal found 5/29$1,425
Thu 6/276:29 amSTL - SYD
1 stop34h 41mQantas Airways
Thu 7/45:35 pmSYD - STL
1 stop20h 23mQantas Airways
Deal found 5/28$1,426
Thu 6/276:30 amSTL - SYD
2 stops33h 30mUnited Airlines
Thu 7/410:20 amSYD - STL
2 stops39h 05mUnited Airlines
Deal found 5/28$1,430
Mon 8/122:35 pmSTL - SYD
2 stops25h 00mDelta
Sat 8/179:25 amSYD - STL
2 stops27h 03mDelta
Deal found 5/29$1,462
Fri 8/1612:00 pmSTL - SYD
3 stops52h 20mAir Canada
Fri 8/239:20 amSYD - STL
2 stops45h 01mAir Canada
Deal found 5/29$1,465
Sat 9/1410:10 amSTL - SYD
2 stops30h 10mAir Canada
Sat 9/219:20 amSYD - STL
2 stops45h 00mAir Canada
Deal found 5/29$1,498

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 2,784,634 searches. Data last updated May 30, 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.
Wed 8/1411:36 amSTL - SYD
3 stops33h 09mMultiple Airlines
Deal found 5/28$918
Wed 8/1411:10 amSTL - SYD
2 stops32h 25mAir New Zealand
Deal found 5/28$1,094
Fri 6/213:07 pmSTL - AVV
3 stops40h 43mMultiple Airlines
Deal found 5/30$1,188
Wed 6/191:55 pmSTL - MEL
3 stops31h 20mMultiple Airlines
Deal found 5/30$1,192
Fri 6/213:07 pmSTL - MEL
3 stops49h 33mMultiple Airlines
Deal found 5/30$1,203
Wed 8/144:18 pmSTL - SYD
1 stop22h 57mQantas Airways
Deal found 5/28$1,215
Wed 6/191:55 pmSTL - AVV
3 stops33h 15mMultiple Airlines
Deal found 5/30$1,248
Fri 6/218:55 amSTL - MEL
2 stops34h 55mAir New Zealand
Deal found 5/29$1,403
Wed 6/198:05 amSTL - MEL
3 stops35h 45mMultiple Airlines
Deal found 5/29$1,450

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,330 - $1,590

Route

Depart

Return

Price

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Wed 8/14

2 stops30h 47m

Sydney Kingsford Smith

Tue 9/3

1 stop21h 43m

$1,330

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Sat 7/6

2 stops47h 24m

Sydney Kingsford Smith

Sat 7/27

2 stops24h 17m

$1,396

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Wed 8/14

3 stops52h 20m

Sydney Kingsford Smith

Tue 9/3

2 stops45h 00m

$1,423

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Thu 6/27

1 stop34h 41m

Sydney Kingsford Smith

Thu 7/4

1 stop20h 23m

$1,426

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Mon 8/12

2 stops25h 00m

Sydney Kingsford Smith

Sat 8/17

2 stops27h 03m

$1,462

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Fri 8/16

3 stops52h 20m

Sydney Kingsford Smith

Fri 8/23

2 stops45h 01m

$1,465

Lambert-St LouisMelbourne Avalon

STL - AVV

STLAVV

Lambert-St Louis

Sun 10/20

3 stops36h 00m

Melbourne Avalon

Sat 11/2

3 stops53h 58m

$1,563

Lambert-St LouisSydney Kingsford Smith

STL - SYD

STLSYD

Lambert-St Louis

Thu 6/27

1 stop33h 36m

Sydney Kingsford Smith

Thu 7/4

2 stops39h 33m

$1,582

Lambert-St LouisHobart

STL - HBA

STLHBA

Lambert-St Louis

Sat 10/26

3 stops37h 40m

Hobart

Mon 11/4

3 stops33h 15m

$1,590

Flights are sorted by cheapest first

Deals found on 5/29

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 May 30, 2024.
Get a feel of what it's like to fly with United Airlines, Air Canada and Qantas 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.
Air New Zealand
8.3
Very good
610 reviews
Check prices

Boarding

8.4

Entertainment

7.9

Food

7.6

Overall

8.3

Crew

8.7

Comfort

8.1

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

Boarding

8.4

Entertainment

7.9

Food

7.6

Overall

8.3

Crew

8.7

Comfort

8.1

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?

Delta
8.0
Very good
10,457 reviews
Air New Zealand
8.3
Very good
610 reviews
Check prices

Boarding

8.4

Entertainment

7.9

Food

7.6

Overall

8.3

Crew

8.7

Comfort

8.1

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
945 reviews
Air New Zealand
8.3
Very good
610 reviews
Check prices

Boarding

8.4

Entertainment

7.9

Food

7.6

Overall

8.3

Crew

8.7

Comfort

8.1

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
10,777 reviews
Air New Zealand
8.3
Very good
610 reviews
Check prices

Boarding

8.4

Entertainment

7.9

Food

7.6

Overall

8.3

Crew

8.7

Comfort

8.1

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?

American Airlines
7.3
Good
14,284 reviews
Air New Zealand
8.3
Very good
610 reviews
Check prices

Boarding

8.4

Entertainment

7.9

Food

7.6

Overall

8.3

Crew

8.7

Comfort

8.1

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 $1,400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Australia for under $1,400. The cheapest flight booked recently is on United Airlines for just $1,330, but on average you can expect to pay $1,509.

  • 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 $1,094. Qantas Airways flights start at $1,215 while deals on United Airlines start at $1,561 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 Avalon and Lambert-St Louis - Melbourne.

  • 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), Cairns Airport (CNS) 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 5/29.

  • 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 $1,097). Flying from St. Louis to Australia in July is currently the most expensive (average of $1,385). 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$924Average$1,448FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,013Average$1,535FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,127Average$1,391FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,205Average$1,523FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,257Average$2,191FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,422Average$1,842FlexibilityNo 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

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

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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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