Sydney

$733+ Cheap flights from Missouri to Sydney (SYD)

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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
ago. 19 — ago. 261
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Cheap flight deals from Missouri to Sydney

Keep the following information in mind while searching for Missouri to Sydney flight deals. Data was last updated agosto 14, 2025.

Round-trip from

$829
(United Airlines)

One-way from

$733
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$1,378
From Missouri to Sydney Kingsford Smith
One-way flight from Missouri to Sydney Kingsford Smith
Highest demand for flights based on searches. 8% potential increase in price ($128 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($52 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Missouri to Sydney

Cheapest flights from Missouri to Sydney
Explore the most affordable flight options available from Missouri to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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. 10/263:02 pmCOU - SYD
2 stops26h 03mUnited Airlines
mié. 11/512:10 pmSYD - COU
2 stops26h 09mUnited Airlines
Deal found 8/12$829
This Travelocity deal was found by Cheapflights users on 8/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/136:00 amMCI - SYD
2 stops34h 20mAir Canada
sáb. 9/209:20 amSYD - MCI
2 stops29h 07mAir Canada
Deal found 8/13$1,078
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/26:13 pmSTL - SYD
2 stops24h 22mQantas Airways
dom. 11/92:20 pmSYD - STL
1 stop22h 10mQantas Airways
Deal found 8/13$1,083
This Orbitz deal was found by Cheapflights users on 8/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/21:47 pmMCI - SYD
2 stops26h 48mAir Canada
dom. 11/911:20 amSYD - MCI
2 stops21h 45mAir Canada
Deal found 8/13$1,086
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/43:59 pmSTL - SYD
1 stop21h 56mQantas Airways
mar. 11/115:30 pmSYD - STL
2 stops23h 12mQantas Airways
Deal found 8/13$1,088
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/25:35 pmMCI - SYD
2 stops25h 00mQantas Airways
dom. 11/92:20 pmSYD - MCI
1 stop39h 29mQantas Airways
Deal found 8/13$1,090
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/281:55 pmSTL - SYD
1 stop24h 00mQantas Airways
dom. 12/146:05 amSYD - STL
2 stops27h 02mQantas Airways
Deal found 8/14$1,092
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/39:05 amMCI - SYD
2 stops31h 15mAir Canada
mié. 9/179:20 amSYD - MCI
2 stops29h 07mAir Canada
Deal found 8/13$1,096
This oojo deal was found by Cheapflights users on 8/14. 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.
mié. 11/57:00 amSTL - SYD
2 stops33h 20mQantas Airways
dom. 11/232:20 pmSYD - STL
1 stop22h 10mQantas Airways
Deal found 8/14$1,106
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/61:45 pmMCI - SYD
2 stops26h 35mAir Canada
sáb. 9/139:20 amSYD - MCI
2 stops21h 49mAir Canada
Deal found 8/13$1,123
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/217:00 amSTL - SYD
2 stops40h 50mQantas Airways
dom. 11/302:20 pmSYD - STL
1 stop39h 17mQantas Airways
Deal found 8/13$1,137
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/32:57 pmMCI - SYD
1 stop24h 58mQantas Airways
mié. 9/1712:10 pmSYD - MCI
1 stop21h 55mQantas Airways
Deal found 8/14$1,165

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Sydney 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 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Missouri to Sydney that are best for you.

Fly from

Missouri

Fly to

Sydney

Route

Depart

Return

Price

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

mar. 10/28

9:00 am-7:00 am

2 stops30h 00m

Sydney Kingsford Smith

mié. 11/5

12:10 pm-9:19 pm

2 stops26h 09m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

lun. 10/27

8:00 am-7:00 am

2 stops31h 00m

Sydney Kingsford Smith

lun. 11/3

11:50 am-9:19 pm

2 stops26h 29m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

lun. 10/27

8:00 am-7:00 am

2 stops31h 00m

Sydney Kingsford Smith

mar. 11/4

11:50 am-8:51 pm

2 stops26h 01m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

dom. 9/28

9:01 am-7:00 am

2 stops30h 59m

Sydney Kingsford Smith

dom. 10/5

11:20 am-2:17 pm

2 stops42h 57m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

mié. 10/29

8:00 am-7:00 am

2 stops31h 00m

Sydney Kingsford Smith

mié. 11/5

11:50 am-8:51 pm

2 stops26h 01m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

dom. 10/26

3:02 pm-9:05 am

2 stops26h 03m

Sydney Kingsford Smith

mié. 11/5

12:10 pm-9:19 pm

2 stops26h 09m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

lun. 10/27

3:02 pm-9:15 am

2 stops26h 13m

Sydney Kingsford Smith

mié. 11/5

12:10 pm-8:51 pm

2 stops25h 41m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

dom. 10/26

8:00 am-7:00 am

2 stops31h 00m

Sydney Kingsford Smith

lun. 11/3

11:50 am-9:19 pm

2 stops26h 29m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

dom. 10/26

9:00 am-7:00 am

2 stops30h 00m

Sydney Kingsford Smith

dom. 11/2

11:50 am-9:51 pm

2 stops26h 01m

$829

ColumbiaSydney

COU - SYD

COUSYD

Columbia Regional

mar. 10/28

8:00 am-7:00 am

2 stops31h 00m

Sydney Kingsford Smith

mar. 11/4

12:10 pm-8:51 pm

2 stops25h 41m

$829

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 32 results
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Best time to book a flight from Missouri to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Missouri 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 Missouri to Sydney

What is the cheapest month to book a flight from Missouri to Sydney?

Currently, February is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,031). Flying from Missouri to Sydney in December is currently the most expensive (average of $1,619). 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 MO to SYD?

Find hourly flight availability from Missouri to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

When flying from Missouri to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Sydney. 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 into for flights to Sydney from Missouri?

    Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Missouri to Sydney. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

  • What are the most popular routes from Missouri to Sydney?

  • Can I find deals for flights from Missouri to Sydney that include hotel bookings?

    Yes. In addition to deals on Missouri to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Sydney.

  • Can I find deals for business class flights from Missouri to Sydney?

    Yes. Cheapflights offers flight deals from Missouri to Sydney 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 Missouri to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,031). Flying from Missouri to Sydney in December is currently the most expensive (average of $1,619). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Missouri to Sydney

Discover the top 7 airlines that operate flights from Missouri to Sydney. 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 2,558,603 searches. Data last updated agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$822Average$1,285FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$887Average$1,222FlexibilityNo cancel feeOn-time74%
DeltaCheapest$981Average$1,444FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$1,000Average$1,293FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,044Average$1,588FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,173Average$1,873FlexibilityNo cancel feeOn-time78%
Qantas AirwaysCheapest$1,185Average$1,612FlexibilityNo cancel feeOn-time74%

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