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$608+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Jun 22 — Jun 291
Sun 6/22
Sun 6/29
1 adult, Economy
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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 June 17, 2025.

Round-trip from

$1,013
(Kiwi.com)

One-way from

$608
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,418
From Missouri to Sydney Kingsford Smith
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One-way flight from Missouri to Sydney Kingsford Smith
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Highest demand for flights based on searches. 10% potential increase in price ($175 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/142:38 pmMCI - SYD
1 stop25h 52mMultiple Airlines
Wed 8/204:20 pmSYD - MCI
2 stops37h 22mMultiple Airlines
Deal found 6/17$1,013
This Expedia deal was found by Cheapflights users on 6/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:00 amMCI - SYD
2 stops34h 20mAir Canada
Sat 9/209:20 amSYD - MCI
2 stops26h 22mAir Canada
Deal found 6/15$1,038
This Qantas Airways deal was found by Cheapflights users on 6/15. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:26 pmMCI - SYD
1 stop21h 29mQantas Airways
Wed 9/1712:10 pmSYD - MCI
1 stop21h 54mQantas Airways
Deal found 6/15$1,135
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Fri 9/51:14 pmMCI - SYD
2 stops26h 51mAmerican Airlines
Sat 9/209:10 amSYD - MCI
2 stops23h 15mAmerican Airlines
Deal found 6/16$1,138
This Orbitz deal was found by Cheapflights users on 6/15. 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.
Sun 9/141:30 pmSTL - SYD
2 stops26h 50mAir Canada
Sat 9/279:20 amSYD - STL
2 stops29h 38mAir Canada
Deal found 6/15$1,144
This Justfly.com deal was found by Cheapflights users on 6/15. 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.
Wed 11/56:15 amSTL - SYD
2 stops43h 35mQantas Airways
Sun 11/232:20 pmSYD - STL
1 stop40h 41mQantas Airways
Deal found 6/15$1,149
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 9/35:59 pmMCI - SYD
1 stop21h 56mUnited Airlines
Wed 9/1710:20 amSYD - MCI
1 stop21h 58mUnited Airlines
Deal found 6/16$1,151
This Delta deal was found by Cheapflights users on 6/16. 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.
Fri 9/56:00 amMCI - SYD
2 stops33h 35mDelta
Sat 9/209:25 amSYD - MCI
1 stop28h 45mDelta
Deal found 6/16$1,155
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/177:41 pmSTL - SYD
1 stop20h 14mMultiple Airlines
Wed 9/34:20 pmSYD - STL
2 stops37h 19mMultiple Airlines
Deal found 6/16$1,237
This FlightHub deal was found by Cheapflights users on 6/16. 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.
Tue 8/195:52 pmSTL - SYD
2 stops37h 18mFiji Airways
Tue 9/21:15 pmSYD - STL
2 stops24h 54mFiji Airways
Deal found 6/16$1,244
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:53 pmSTL - SYD
2 stops26h 12mAmerican Airlines
Sat 9/279:10 amSYD - STL
2 stops26h 05mAmerican Airlines
Deal found 6/14$1,258
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sat 8/165:41 pmSTL - SYD
1 stop22h 14mUnited Airlines
Fri 9/510:20 amSYD - STL
1 stop21h 33mUnited Airlines
Deal found 6/16$1,271

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 June 17, 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

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 8/14

2:38 pm-7:30 am

1 stop25h 52m

Sydney Kingsford Smith

Wed 8/20

4:20 pm-2:42 pm

2 stops37h 22m

$1,013

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sat 9/6

6:00 am-7:20 am

2 stops34h 20m

Sydney Kingsford Smith

Sat 9/20

9:20 am-8:42 pm

2 stops26h 22m

$1,038

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 9/3

6:26 pm-6:55 am

1 stop21h 29m

Sydney Kingsford Smith

Wed 9/17

12:10 pm-7:04 pm

1 stop21h 54m

$1,135

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 9/5

1:14 pm-7:05 am

2 stops26h 51m

Sydney Kingsford Smith

Sat 9/20

9:10 am-5:25 pm

2 stops23h 15m

$1,138

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 9/14

1:30 pm-7:20 am

2 stops26h 50m

Sydney Kingsford Smith

Sat 9/27

9:20 am-11:58 pm

2 stops29h 38m

$1,144

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 9/3

5:59 pm-6:55 am

1 stop21h 56m

Sydney Kingsford Smith

Wed 9/17

10:20 am-5:18 pm

1 stop21h 58m

$1,151

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 9/5

6:00 am-6:35 am

2 stops33h 35m

Sydney Kingsford Smith

Sat 9/20

9:25 am-11:10 pm

1 stop28h 45m

$1,155

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 8/18

5:52 pm-6:55 am

1 stop22h 03m

Sydney Kingsford Smith

Tue 9/2

5:45 pm-11:09 pm

1 stop20h 24m

$1,187

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 8/17

7:41 pm-6:55 am

1 stop20h 14m

Sydney Kingsford Smith

Wed 9/3

4:20 pm-2:39 pm

2 stops37h 19m

$1,237

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 8/19

5:52 pm-10:10 pm

2 stops37h 18m

Sydney Kingsford Smith

Tue 9/2

1:15 pm-11:09 pm

2 stops24h 54m

$1,244

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 24 results
1
2
3

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, March is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,040). Flying from Missouri to Sydney in December is currently the most expensive (average of $1,635). 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 June 17, 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.

Rainfall in Sydney by month

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

In terms of precipitation, rainfall in Sydney 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 Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

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

If weather is an important factor for your trip to Sydney, 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 Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated June 17, 2025.
To help decide which airline to fly from Missouri to Sydney, see what other customers have to say about Emirates, Fiji Airways and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,268 reviews

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,268 reviews
Emirates
8.1
Very good
3,268 reviews

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Fiji Airways
8.0
Very good
199 reviews
Emirates
8.1
Very good
3,268 reviews

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Delta
8.0
Very good
7,963 reviews
Emirates
8.1
Very good
3,268 reviews

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air New Zealand
8.0
Very good
485 reviews
Emirates
8.1
Very good
3,268 reviews

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qantas Airways
7.5
Good
860 reviews
Emirates
8.1
Very good
3,268 reviews

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 cheapest airlines to fly from Missouri to Sydney one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $683. Qantas Airways flights start at $712 while deals on American Airlines start at $733 one-way.

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

    The most popular route from Missouri to Sydney is Kansas City - Sydney Kingsford Smith. You may also consider Lambert-St Louis - Sydney Kingsford Smith or Columbia Regional - Sydney Kingsford Smith.

  • 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, March is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,040). Flying from Missouri to Sydney in December is currently the most expensive (average of $1,635). 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 Missouri?

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

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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 June 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$822Average$1,405FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$962Average$1,339FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$1,132Average$1,222FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,173Average$1,875FlexibilityNo cancel feeOn-time78%
Qantas AirwaysCheapest$1,185Average$1,684FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,193Average$1,586FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,211Average$1,440FlexibilityNo cancel feeOn-timeN/A

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