How long is the flight from St. Louis to Australia?

Departing from St. Louis to Australia will take you 22h 30m. Airlines will cover a distance of 8745 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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.

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).

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 United Airlines, Qantas Airways or American Airlines when booking your flight. These represent the most popular airlines when flying from St. Louis to Australia.

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 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.

$539+ Flights from St. Louis to Australia

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Cheap 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 diciembre 23, 2025.

mié. 12/313:30 pmSTL - MEL

2 stops47h 50mQantas Airways

mié. 1/1412:00 pmMEL - STL

1 stop28h 59mQantas Airways

Deal found 12/21

$1,113

mié. 12/312:45 pmSTL - MEL

2 stops25h 45mUnited Airlines

mié. 1/1411:30 amMEL - STL

2 stops24h 57mUnited Airlines

Deal found 12/22

$1,278

sáb. 12/276:44 pmSTL - SYD

2 stops44h 16mQantas Airways

vie. 1/97:30 pmSYD - STL

2 stops45h 29mQantas Airways

Deal found 12/20

$1,557

jue. 12/256:41 amSTL - SYD

1 stop30h 39mUnited Airlines

sáb. 12/271:00 pmSYD - STL

2 stops50h 30mUnited Airlines

Deal found 12/21

$1,592

mié. 12/314:05 pmSTL - AVV

3 stops59h 15mMultiple Airlines

mié. 1/148:55 pmAVV - STL

3 stops59h 34mMultiple Airlines

Deal found 12/21

$1,971

sáb. 12/2712:55 pmSTL - SYD

2 stops26h 35mDelta

vie. 1/910:40 amSYD - STL

2 stops21h 08mDelta

Deal found 12/21

$2,107

mié. 12/246:20 amSTL - SYD

1 stop33h 40mQantas Airways

vie. 12/2610:00 pmSYD - STL

2 stops42h 51mQantas Airways

Deal found 12/20

$2,118

mié. 12/2410:30 amSTL - SYD

1 stop27h 30mUnited Airlines

vie. 12/261:00 pmSYD - STL

2 stops50h 30mUnited Airlines

Deal found 12/20

$2,128

mié. 12/249:00 amSTL - SYD

2 stops31h 05mUnited Airlines

vie. 1/212:10 pmSYD - STL

2 stops27h 12mUnited Airlines

Deal found 12/20

$2,168

sáb. 12/276:41 amSTL - SYD

1 stop30h 39mUnited Airlines

vie. 1/912:10 pmSYD - STL

1 stop20h 27mUnited Airlines

Deal found 12/21

$2,214

mié. 12/316:00 amSTL - MEL

2 stops33h 00mDelta

mié. 1/1410:10 amMEL - STL

3 stops30h 15mDelta

Deal found 12/22

$2,747

mié. 12/314:05 pmSTL - MEL

3 stops53h 35mMultiple Airlines

mié. 1/147:25 amMEL - STL

3 stops49h 04mMultiple Airlines

Deal found 12/21

$2,834

Best flights from St. Louis to Australia
Discover carefully curated flight deals from St. Louis to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 23, 2025.

mié. 2/47:04 amSTL - SYD

2 stops44h 46mQantas Airways

mié. 2/1111:20 amSYD - STL

1 stop29h 39mQantas Airways

Deal found 12/21

$939

jue. 2/56:00 pmSTL - BNE

2 stops46h 45mAir Canada

jue. 2/1210:45 amBNE - STL

2 stops25h 41mAir Canada

Deal found 12/22

$1,032

sáb. 1/315:00 pmSTL - BNE

1 stop22h 30mUnited Airlines

mié. 2/411:40 amBNE - STL

1 stop19h 57mUnited Airlines

Deal found 12/20

$1,038

jue. 2/55:04 pmSTL - MEL

2 stops32h 41mMultiple Airlines

jue. 2/127:00 amMEL - STL

2 stops29h 25mMultiple Airlines

Deal found 12/21

$1,169

lun. 4/1311:43 amSTL - MEL

2 stops29h 07mDelta

vie. 4/2410:00 amMEL - STL

2 stops26h 17mDelta

Deal found 12/22

$1,217

mar. 3/109:35 amSTL - PER

2 stops48h 20mCathay Pacific

lun. 3/2312:25 amPER - STL

2 stops36h 34mCathay Pacific

Deal found 12/21

$1,353

jue. 4/307:00 amSTL - PER

2 stops39h 55mQatar Airways

vie. 5/810:45 pmPER - STL

2 stops38h 10mQatar Airways

Deal found 12/21

$1,444

dom. 3/156:38 amSTL - SYD

1 stop34h 22mQantas Airways

mar. 3/245:50 pmSYD - STL

2 stops39h 23mQantas Airways

Deal found 12/21

$939

mar. 3/106:51 amSTL - PER

2 stops44h 59mAir New Zealand

mar. 3/2410:55 pmPER - STL

3 stops32h 04mAir New Zealand

Deal found 12/22

$1,961

sáb. 1/314:05 pmSTL - BNE

2 stops48h 40mAir Canada

mié. 2/410:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 12/20

$1,039

sáb. 2/216:30 amSTL - SYD

2 stops57h 40mQantas Airways

sáb. 2/285:45 pmSYD - STL

1 stop23h 03mQantas Airways

Deal found 12/21

$946

jue. 2/55:00 pmSTL - BNE

1 stop22h 30mUnited Airlines

jue. 2/1211:40 amBNE - STL

2 stops24h 46mUnited Airlines

Deal found 12/22

$1,043

sáb. 1/317:04 amSTL - BNE

1 stop29h 56mQantas Airways

mié. 2/46:30 pmBNE - STL

2 stops37h 44mQantas Airways

Deal found 12/20

$1,000

vie. 2/610:19 amSTL - MEL

2 stops28h 41mDelta

dom. 2/2210:10 amMEL - STL

2 stops31h 15mDelta

Deal found 12/22

$1,217

sáb. 3/144:05 pmSTL - SYD

2 stops48h 30mAir Canada

lun. 3/2310:25 amSYD - STL

2 stops45h 04mAir Canada

Deal found 12/21

$1,145

jue. 2/54:05 pmSTL - BNE

3 stops54h 15mMultiple Airlines

jue. 2/126:10 amBNE - STL

3 stops49h 19mMultiple Airlines

Deal found 12/22

$1,335

vie. 4/39:45 amSTL - MEL

2 stops31h 05mDelta

dom. 4/1910:00 amMEL - STL

2 stops28h 12mDelta

Deal found 12/21

$1,217

jue. 2/55:04 pmSTL - MEL

2 stops29h 31mQantas Airways

jue. 2/1212:00 pmMEL - STL

1 stop28h 48mQantas Airways

Deal found 12/21

$1,055

vie. 4/37:05 pmSTL - MEL

1 stop22h 10mUnited Airlines

dom. 4/1910:55 amMEL - STL

1 stop22h 29mUnited Airlines

Deal found 12/21

$1,286

sáb. 3/74:05 pmSTL - SYD

2 stops47h 30mAir Canada

sáb. 3/1410:20 amSYD - STL

2 stops45h 09mAir Canada

Deal found 12/22

$1,187

dom. 2/156:30 amSTL - CNS

2 stops35h 25mCathay Pacific

jue. 2/1911:25 amCNS - STL

2 stops28h 23mCathay Pacific

Deal found 12/20

$1,504

mar. 3/106:08 pmSTL - PER

2 stops39h 47mMultiple Airlines

lun. 3/2312:25 amPER - STL

2 stops36h 34mMultiple Airlines

Deal found 12/22

$1,386

vie. 1/211:05 amSTL - MEL

2 stops29h 55mUnited Airlines

jue. 1/2211:30 amMEL - STL

2 stops24h 57mUnited Airlines

Deal found 12/21

$1,290

jue. 2/57:04 amSTL - SYD

2 stops55h 31mQantas Airways

jue. 2/1211:20 amSYD - STL

1 stop29h 28mQantas Airways

Deal found 12/22

$1,084

mié. 1/217:04 amSTL - SYD

2 stops57h 06mQantas Airways

sáb. 2/1411:20 amSYD - STL

1 stop29h 28mQantas Airways

Deal found 12/22

$1,084

vie. 2/67:04 amSTL - AVV

2 stops38h 06mMultiple Airlines

dom. 2/228:55 pmAVV - STL

2 stops37h 10mMultiple Airlines

Deal found 12/22

$1,448

lun. 4/136:30 amSTL - MEL

1 stop33h 15mQantas Airways

vie. 4/241:35 pmMEL - STL

1 stop19h 42mQantas Airways

Deal found 12/22

$1,118

jue. 2/1910:04 amSTL - PER

2 stops46h 51mCathay Pacific

lun. 2/238:30 amPER - STL

2 stops53h 18mCathay Pacific

Deal found 12/20

$1,880

lun. 5/46:30 amSTL - SYD

2 stops37h 25mQantas Airways

lun. 5/1812:00 pmSYD - STL

1 stop21h 17mQantas Airways

Deal found 12/23

$1,149

sáb. 2/215:55 pmSTL - CBR

3 stops45h 25mQatar Airways

mié. 2/2512:30 pmCBR - STL

3 stops45h 35mQatar Airways

Deal found 12/20

$2,258

Last-minute flights from St. Louis to Australia
Discover last-minute flight deals from St. Louis to Australia. Data last updated diciembre 23, 2025 and is based on user searches.

mié. 12/313:30 pmSTL - MEL

2 stops47h 50mQantas Airways

mié. 1/1412:00 pmMEL - STL

1 stop28h 59mQantas Airways

Deal found 12/21

$1,113

mié. 12/312:45 pmSTL - MEL

2 stops25h 45mUnited Airlines

mié. 1/1411:30 amMEL - STL

2 stops24h 57mUnited Airlines

Deal found 12/22

$1,278

vie. 1/26:44 pmSTL - MEL

1 stop41h 16mQantas Airways

jue. 1/224:05 pmMEL - STL

1 stop20h 24mQantas Airways

Deal found 12/23

$1,244

vie. 1/22:45 pmSTL - MEL

2 stops25h 45mUnited Airlines

jue. 1/2211:30 amMEL - STL

2 stops24h 57mUnited Airlines

Deal found 12/22

$1,290

vie. 1/26:44 pmSTL - MEL

1 stop41h 16mMultiple Airlines

jue. 1/229:05 pmMEL - STL

2 stops34h 42mMultiple Airlines

Deal found 12/23

$1,491

lun. 1/129:57 amSTL - MEL

2 stops30h 33mUnited Airlines

lun. 1/1911:30 amMEL - STL

2 stops28h 28mUnited Airlines

Deal found 12/22

$1,450

vie. 1/1611:55 amSTL - SYD

2 stops50h 40mQantas Airways

vie. 1/2311:20 amSYD - STL

1 stop29h 39mQantas Airways

Deal found 12/23

$1,164

mié. 1/217:04 amSTL - SYD

2 stops57h 06mQantas Airways

sáb. 2/1411:20 amSYD - STL

1 stop29h 28mQantas Airways

Deal found 12/22

$1,084

mié. 1/215:00 pmSTL - SYD

1 stop23h 15mUnited Airlines

sáb. 2/1411:50 amSYD - STL

1 stop20h 48mUnited Airlines

Deal found 12/22

$1,343

sáb. 1/317:04 amSTL - BNE

1 stop29h 56mQantas Airways

mié. 2/46:30 pmBNE - STL

2 stops37h 44mQantas Airways

Deal found 12/21

$1,000

sáb. 1/315:00 pmSTL - BNE

1 stop22h 30mUnited Airlines

mié. 2/411:40 amBNE - STL

1 stop19h 57mUnited Airlines

Deal found 12/21

$1,038

sáb. 1/314:05 pmSTL - BNE

2 stops48h 40mAir Canada

mié. 2/410:45 amBNE - STL

2 stops44h 44mAir Canada

Deal found 12/22

$1,039

One-way flights from St. Louis to Australia
Search for one-way flight options from St. Louis to Australia. Find affordable one-way fares based on user searches. Data last updated diciembre 23, 2025.

jue. 2/1210:11 pmSTL - SYD

2 stops38h 59mMultiple Airlines

Deal found 12/22

$539

mié. 3/47:00 amSTL - PER

3 stops55h 30mMultiple Airlines

Deal found 12/22

$617

mié. 3/45:18 pmSTL - SYD

3 stops46h 32mMultiple Airlines

Deal found 12/22

$642

lun. 3/24:30 pmSTL - SYD

2 stops24h 05mMultiple Airlines

Deal found 12/22

$670

dom. 2/154:05 pmSTL - SYD

2 stops48h 30mAir Canada

Deal found 12/22

$672

mié. 2/45:04 pmSTL - SYD

2 stops24h 51mQantas Airways

Deal found 12/21

$736

dom. 2/157:00 amSTL - SYD

3 stops30h 10mMultiple Airlines

Deal found 12/22

$770

jue. 2/1210:10 amSTL - SYD

1 stop27h 50mUnited Airlines

Deal found 12/22

$832

lun. 3/26:00 amSTL - SYD

1 stop32h 00mUnited Airlines

Deal found 12/22

$866

mar. 3/107:00 amSTL - SYD

3 stops56h 40mMultiple Airlines

Deal found 12/23

$12,220

Find flight deals from St. Louis to Australia

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$939 (oojo)
One-way from	$539 (Kiwi.com)
Popular in	December
Cheapest in	August
Average price	$1,766

Provider with most accurate pricing for Lambert-St Louis-Sydney Kingsford Smith flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Sydney Kingsford Smith flights.

Search Deals

From Lambert-St Louis to Australia

Search Deals

One-way flight from Lambert-St Louis to Australia

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($70 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

mié. 2/4

7:04 am-8:50 pm

2 stops44h 46m

Sydney Kingsford Smith

mié. 2/11

11:20 am-11:59 pm

1 stop29h 39m

$939

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

dom. 3/15

6:38 am-9:00 am

1 stop34h 22m

Sydney Kingsford Smith

mar. 3/24

5:50 pm-5:13 pm

2 stops39h 23m

$939

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

sáb. 2/21

6:30 am-9:10 am

2 stops57h 40m

Sydney Kingsford Smith

sáb. 2/28

5:45 pm-11:48 pm

1 stop23h 03m

$946

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

sáb. 1/31

7:04 am-5:00 am

1 stop29h 56m

Brisbane

mié. 2/4

6:30 pm-4:14 pm

2 stops37h 44m

$1,000

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

jue. 2/5

6:00 pm-8:45 am

2 stops46h 45m

Brisbane

jue. 2/12

10:45 am-8:26 pm

2 stops25h 41m

$1,032

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

sáb. 1/31

5:00 pm-7:30 am

1 stop22h 30m

Brisbane

mié. 2/4

11:40 am-3:37 pm

1 stop19h 57m

$1,038

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

sáb. 1/31

4:05 pm-8:45 am

2 stops48h 40m

Brisbane

mié. 2/4

10:45 am-3:29 pm

2 stops44h 44m

$1,039

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

jue. 2/5

5:00 pm-7:30 am

1 stop22h 30m

Brisbane

jue. 2/12

11:40 am-8:26 pm

2 stops24h 46m

$1,043

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

jue. 2/5

5:04 pm-3:35 pm

2 stops29h 31m

Melbourne

jue. 2/12

12:00 pm-11:48 pm

1 stop28h 48m

$1,055

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

jue. 2/5

7:04 am-7:35 am

2 stops55h 31m

Sydney Kingsford Smith

jue. 2/12

11:20 am-11:48 pm

1 stop29h 28m

$1,084

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 40 results

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Australia

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Australia (average of $705). Flying from St. Louis to Australia in June is currently the most expensive (average of $1,259). 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?

When flying from St. Louis to Australia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the morning.

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

Travelers seeking maximum savings on their St. Louis to Australia flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Australia

Read reviews from past customers who have flown Fiji Airways, Qantas Airways, and United Airlines from St. Louis to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Fiji Airways

8.0

Very good

211 reviews

Reviews

1 / 17

10.0

Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Fiji Airways

8.0

Very good

211 reviews

Fiji Airways

8.0

Very good

211 reviews

Reviews

1 / 17

10.0

Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Qantas Airways

7.5

Good

949 reviews

Fiji Airways

8.0

Very good

211 reviews

Reviews

1 / 17

10.0

Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

United Airlines

7.4

Good

9,107 reviews

Fiji Airways

8.0

Very good

211 reviews

Reviews

1 / 17

10.0

Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

American Airlines

7.2

Good

11,051 reviews

Fiji Airways

8.0

Very good

211 reviews

Reviews

1 / 17

10.0

Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Air Canada

7.1

Good

10,551 reviews

Fiji Airways

8.0

Very good

211 reviews

Reviews

1 / 17

10.0

Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Related info for your journey

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.
How long is the flight from St. Louis to Australia?
Departing from St. Louis to Australia will take you 22h 30m. Airlines will cover a distance of 8745 mi. Both multi-stop and nonstop flights can be found to your destination and back.
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, August is the cheapest month in which you can book a flight from St. Louis to Australia (average of $705). Flying from St. Louis to Australia in June is currently the most expensive (average of $1,259). 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Australia car rentals

New South Wales car rentals

Victoria car rentals

Queensland car rentals

Tasmania car rentals

Australian Capital Territory car rentals

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Top 5 airlines flying from St. Louis to Australia

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$897	Average$1,260	FlexibilityNo cancel fee	On-time67%
Qantas Airways	Cheapest$975	Average$1,372	FlexibilityNo cancel fee	On-time74%
United Airlines	Cheapest$1,027	Average$1,489	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$1,118	Average$1,455	FlexibilityNo cancel fee	On-time71%
Fiji Airways	Cheapest$1,132	Average$1,296	FlexibilityNo cancel fee	On-time74%

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$539+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from St. Louis to Australia

Cheapest flights from St. Louis to AustraliaExplore 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 diciembre 23, 2025.

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 diciembre 23, 2025.

Find flight deals from St. Louis to Australia

Keep the following information in mind while searching for St. Louis to Australia flight deals. Data was last updated diciembre 23, 2025.

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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 diciembre 23, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Australia. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Australia

Read reviews from past customers who have flown Fiji Airways, Qantas Airways, and United Airlines from St. Louis to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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Top 5 airlines flying from St. Louis to Australia

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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 diciembre 23, 2025.