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$588+ 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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
nov. 25 — dic. 21
lun. 11/25
lun. 12/2
1 adult, Economy
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Cheap flight deals from St. Louis to Australia

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Australia (AU0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 20, 2024.

Find 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 noviembre 20, 2024.

This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/244:54 pmSTL - SYD
1 stop21h 06mUnited Airlines
dom. 12/811:50 amSYD - STL
1 stop21h 48mUnited Airlines
Deal found 11/19$1,707
This Air Canada deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/33:50 pmSTL - SYD
2 stops48h 45mAir Canada
lun. 12/1611:20 amSYD - STL
2 stops44h 46mAir Canada
Deal found 11/19$1,708
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/126:30 amSTL - SYD
2 stops33h 05mDelta
vie. 12/2711:05 amSYD - STL
2 stops27h 30mDelta
Deal found 11/19$1,821
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/308:50 amSTL - BNE
1 stop30h 40mUnited Airlines
mié. 1/1511:40 amBNE - STL
2 stops21h 56mUnited Airlines
Deal found 11/20$1,852
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/37:00 amSTL - SYD
2 stops34h 25mAir New Zealand
lun. 12/1612:10 pmSYD - STL
1 stop22h 46mAir New Zealand
Deal found 11/19$2,036
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/35:31 pmSTL - SYD
1 stop20h 04mQantas Airways
lun. 12/1611:15 amSYD - STL
1 stop29h 57mQantas Airways
Deal found 11/19$2,097
This Air New Zealand deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/31:39 pmSTL - SYD
3 stops26h 06mMultiple Airlines
lun. 12/169:55 amSYD - STL
3 stops27h 46mMultiple Airlines
Deal found 11/19$2,200
This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/3011:46 amSTL - BNE
3 stops28h 54mMultiple Airlines
mar. 1/1412:10 amBNE - STL
2 stops32h 10mMultiple Airlines
Deal found 11/20$4,682
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/212:17 pmSTL - SYD
2 stops24h 08mAmerican Airlines
sáb. 1/45:25 pmSYD - STL
1 stop23h 02mAmerican Airlines
Deal found 11/19$5,888
This Booking.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/245:31 pmSTL - SYD
3 stops44h 24mBritish Airways
dom. 12/84:20 pmSYD - STL
3 stops41h 14mBritish Airways
Deal found 11/19$10,727

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 2,629,791 searches. Data last updated noviembre 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

vie. 3/21

3:50 pm-8:35 am

2 stops48h 45m

Sydney Kingsford Smith

vie. 4/18

9:20 am-3:06 pm

2 stops44h 46m

$1,099

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

lun. 2/3

1:02 pm-9:30 am

2 stops27h 28m

Melbourne

dom. 2/16

11:30 am-8:44 pm

2 stops26h 14m

$1,161

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

vie. 3/21

8:40 am-7:00 am

1 stop30h 20m

Sydney Kingsford Smith

vie. 4/18

10:20 am-12:27 am

1 stop29h 07m

$1,202

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

lun. 2/3

4:36 pm-1:50 pm

2 stops28h 14m

Melbourne

dom. 2/16

8:35 am-8:44 pm

2 stops29h 09m

$1,375

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

sáb. 2/1

4:36 pm-8:45 am

2 stops23h 09m

Sydney Kingsford Smith

lun. 6/30

10:20 am-12:27 am

1 stop29h 07m

$1,435

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

mié. 4/30

7:02 pm-10:35 am

2 stops24h 33m

Brisbane

lun. 5/5

11:35 am-11:11 pm

2 stops26h 36m

$1,449

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

lun. 2/3

3:50 pm-11:15 pm

3 stops62h 25m

Melbourne Avalon

dom. 2/16

8:55 pm-3:06 pm

3 stops59h 11m

$1,461

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

sáb. 2/1

4:36 pm-8:45 am

2 stops23h 09m

Sydney Kingsford Smith

lun. 6/30

11:50 am-11:18 pm

3 stops26h 28m

$1,511

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

mar. 3/11

7:51 pm-12:15 pm

2 stops24h 24m

Melbourne

jue. 3/27

1:45 pm-11:50 pm

2 stops26h 05m

$1,512

St. LouisCanberra

STL - CBR

STLCBR

Lambert-St Louis

dom. 2/2

3:50 pm-4:30 pm

3 stops55h 40m

Canberra

sáb. 2/8

3:20 pm-3:06 pm

3 stops64h 46m

$1,620

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 45 results
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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.

Travel insights for flights from St. Louis to Australia

Get recent, data-driven insights about flights from St. Louis to Australia including ideal travel times, pricing trends, and more.

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 $1,062). Flying from St. Louis to Australia in December is currently the most expensive (average of $1,318). 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?

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 noviembre 20, 2024.

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.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

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.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

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).

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 noviembre 20, 2024.
Get a feel of what it's like to fly with Qantas Airways, Air Canada and Air New Zealand 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.
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

ANA
8.4
Very good
833 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Asiana Airlines
8.3
Very good
476 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Emirates
8.1
Very good
3,486 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Air New Zealand
8.1
Very good
529 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Delta
8.0
Very good
8,756 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

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.

  • 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 $1,101. Delta flights start at $1,119 while deals on United Airlines start at $1,412 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.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Australia (average of $1,062). Flying from St. Louis to Australia in December is currently the most expensive (average of $1,318). 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 7 airlines flying from St. Louis to Australia

Discover the top 7 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 2,629,791 searches. Data last updated noviembre 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$687Average$1,924FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$917Average$1,380FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$924Average$1,568FlexibilityNo cancel feeOn-time69%
DeltaCheapest$942Average$1,551FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,134Average$1,637FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,322Average$1,744FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,559Average$1,715FlexibilityNo cancel feeOn-time68%
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