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Cheap flights from Missouri to Sydney from $886

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 14/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
15 Nov — 22 Nov1
1 adult
1 adult, Economy

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 16 October 2025.

Round-trip from

$1,887

One-way from

$886

Popular in

December

Cheapest in

August

Average price

$2,044
Delta
  • Delta
  • 26/2-13/3
  • 2 total stops
  • 51h 59m total
  • Missouri to Sydney
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American Airlines
  • American Airlines
  • 14/3
  • 2 total stops
  • 24h 15m total
  • Missouri to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($204 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($67 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Missouri to Sydney

Enter your travel dates to find the best prices.

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 16 October 2025.

Fri 31/1015:55MCI - SYD
1 stop23h 35mDelta
Fri 7/1110:40SYD - MCI
1 stop21h 06mDelta
Deal found 15/10$1,887
Sat 1/1115:55MCI - SYD
1 stop23h 35mDelta
Wed 5/1110:40SYD - MCI
1 stop21h 06mDelta
Deal found 13/10$1,890
Fri 28/1106:40MCI - SYD
2 stops32h 50mDelta
Fri 5/1210:40SYD - MCI
1 stop21h 20mDelta
Deal found 14/10$1,893
Wed 5/1107:00STL - SYD
2 stops33h 50mQantas Airways
Sun 23/1114:05SYD - STL
1 stop19h 27mQantas Airways
Deal found 16/10$1,949
Wed 12/1115:04MCI - SYD
2 stops38h 21mQantas Airways
Wed 26/1114:05SYD - MCI
1 stop22h 06mQantas Airways
Deal found 14/10$1,956
Sun 9/1117:35MCI - SYD
1 stop20h 20mQantas Airways
Sun 23/1114:05SYD - MCI
1 stop22h 13mQantas Airways
Deal found 14/10$1,958
Thu 6/1110:18MCI - SYD
2 stops29h 12mDelta
Sun 23/1110:40SYD - MCI
2 stops30h 10mDelta
Deal found 14/10$1,959
Wed 5/1107:00STL - SYD
1 stop31h 25mAmerican Airlines
Sun 23/1114:05SYD - STL
1 stop19h 27mAmerican Airlines
Deal found 15/10$1,959
Sun 9/1114:54MCI - SYD
2 stops25h 06mAmerican Airlines
Sun 23/1111:20SYD - MCI
2 stops22h 36mAmerican Airlines
Deal found 14/10$1,995
Wed 29/1008:49STL - SYD
1 stop30h 06mAmerican Airlines
Sat 15/1117:45SYD - STL
1 stop22h 57mAmerican Airlines
Deal found 16/10$2,035
Fri 28/1107:00STL - SYD
1 stop31h 25mAmerican Airlines
Sun 14/1211:20SYD - STL
1 stop29h 37mAmerican Airlines
Deal found 16/10$2,050
Sat 18/1016:50STL - SYD
2 stops23h 10mUnited Airlines
Sat 8/1112:10SYD - STL
1 stop21h 17mUnited Airlines
Deal found 15/10$2,136

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 16 October 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 13/11

15:50-08:30

1 stop23h 40m

Sydney Kingsford Smith

Thu 20/11

10:40-14:55

1 stop21h 15m

$1,887

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 27/2

15:45-08:30

1 stop23h 45m

Sydney Kingsford Smith

Fri 13/3

09:40-14:49

1 stop21h 09m

$1,887

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 26/2

07:00-06:50

1 stop30h 50m

Sydney Kingsford Smith

Thu 12/3

09:40-14:49

1 stop21h 09m

$1,887

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sat 1/11

15:55-07:30

1 stop23h 35m

Sydney Kingsford Smith

Wed 5/11

10:40-14:46

1 stop21h 06m

$1,890

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 28/11

05:50-08:30

2 stops33h 40m

Sydney Kingsford Smith

Fri 5/12

10:40-21:13

2 stops27h 33m

$1,893

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 27/2

14:15-08:30

2 stops25h 15m

Sydney Kingsford Smith

Sat 14/3

13:15-23:04

2 stops25h 49m

$1,895

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sat 28/2

06:00-06:50

2 stops31h 50m

Sydney Kingsford Smith

Fri 13/3

09:40-17:25

2 stops23h 45m

$1,895

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 26/2

12:30-06:50

2 stops25h 20m

Sydney Kingsford Smith

Sat 14/3

13:15-00:25

2 stops27h 10m

$1,895

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 27/2

14:15-08:30

2 stops25h 15m

Sydney Kingsford Smith

Thu 12/3

09:40-16:48

2 stops23h 08m

$1,895

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 4/3

17:40-08:30

2 stops45h 50m

Sydney Kingsford Smith

Fri 13/3

09:40-23:04

2 stops29h 24m

$1,895

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 34 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 return 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, October is the cheapest month in which you can book a flight from Missouri to Sydney (average of $860). Flying from Missouri to Sydney in July is currently the most expensive (average of $1,904). 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 16 October 2025.

It’s typically best to fly out from Missouri to Sydney in the evening. Doing so could potentially save you 44% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost for a return flight from Missouri to Sydney?

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?

    If you book a flight to Sydney from Missouri, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney.

  • How long is the flight from Missouri to Sydney?

    Airlines like Delta, Qantas Airways, and American Airlines fly from Missouri to Sydney in about 23h 40m. The time it takes to get you to your destination can typically vary by up to 10h 10m. Airlines will cover a distance of 14225 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to Sydney one-way?

    One-way options have recently been found by users for as low as $886 on American Airlines. Other airlines that offer cheap prices include Delta from $898 and Fiji Airways from $1,017 one-way.

  • 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 holiday 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, October is the cheapest month in which you can book a flight from Missouri to Sydney (average of $860). Flying from Missouri to Sydney in July is currently the most expensive (average of $1,904). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Manly
Terrigal
Randwick
Coogee
Cronulla
Leura
Lithgow
Bondi Beach

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Missouri to Sydney?

Deals for Missouri to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Missouri to Sydney?

Cheapflights simply makes it quick and affordable to book flights from Missouri to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Missouri to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Missouri to Sydney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Missouri to Sydney become cheaper?

Of course! You can now track prices for flights from Missouri to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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