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Cheap flights from Missouri to Sydney from $774

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
27 1월 — 3 2월1
1 adult
1 adult, Economy, 0 bags

Cheap 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 28 12월 2025.

화 30/1206:20STL - SYD
1 stop33h 40mQantas Airways
일 11/108:55SYD - STL
2 stops32h 04mQantas Airways
Deal found 27/12$1,583
화 30/1217:40MCI - SYD
2 stops25h 15mQantas Airways
수 14/113:05SYD - MCI
2 stops44h 42mQantas Airways
Deal found 27/12$2,049
월 29/1217:40MCI - SYD
2 stops25h 15mQantas Airways
일 11/106:20SYD - MCI
2 stops23h 45mQantas Airways
Deal found 27/12$2,143
월 29/1217:40MCI - SYD
2 stops25h 15mQantas Airways
월 12/113:05SYD - MCI
2 stops41h 00mQantas Airways
Deal found 27/12$2,177
화 30/1218:44STL - SYD
2 stops24h 11mQantas Airways
화 6/118:30SYD - STL
2 stops37h 13mQantas Airways
Deal found 25/12$2,327
일 28/1217:07MCI - SYD
2 stops47h 28mAir Canada
목 15/116:00SYD - MCI
2 stops48h 30mAir Canada
Deal found 27/12$2,385
일 28/1217:07MCI - SYD
2 stops47h 28mAir Canada
금 16/111:20SYD - MCI
2 stops21h 48mAir Canada
Deal found 27/12$2,420
일 28/1217:07MCI - SYD
2 stops47h 28mAir Canada
수 14/111:20SYD - MCI
2 stops29h 10mAir Canada
Deal found 27/12$2,494
월 29/1206:15MCI - SYD
1 stop31h 45mUnited Airlines
월 12/112:10SYD - MCI
1 stop24h 03mUnited Airlines
Deal found 27/12$2,625
일 28/1214:35MCI - SYD
2 stops24h 55mDelta
월 12/114:15SYD - MCI
2 stops23h 24mDelta
Deal found 27/12$2,632
일 28/1216:05MCI - SYD
1 stop23h 25mDelta
금 16/110:40SYD - MCI
1 stop21h 07mDelta
Deal found 27/12$2,699
수 31/1215:29MCI - SYD
2 stops24h 01mDelta
목 15/110:40SYD - MCI
1 stop21h 07mDelta
Deal found 27/12$2,707

Find flight deals from Missouri to Sydney

Keep the following information in mind while searching for Missouri to Sydney flight deals. Data was last updated 28 12월 2025.

Round-trip from

$1,366

One-way from

$774

Popular in

December

Cheapest in

August

Average price

$2,628
Qantas Airways
  • Qantas Airways
  • 10/2-17/2
  • 3 total stops
  • 66h 39m total
  • Missouri to Sydney
Search Deals
24/3
  • 24/3
  • 2 total stops
  • 23h 14m total
  • Missouri to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($155 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($65 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 28 12월 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

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

토 31/1

07:04-09:00

1 stop32h 56m

Sydney Kingsford Smith

금 13/2

19:15-23:48

2 stops45h 33m

$1,461

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

일 15/3

06:38-09:00

1 stop34h 22m

Sydney Kingsford Smith

화 24/3

19:15-17:13

2 stops37h 58m

$1,501

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

수 18/2

14:02-21:30

2 stops38h 28m

Sydney Kingsford Smith

일 22/2

14:05-17:08

1 stop20h 03m

$1,545

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

목 22/1

07:04-20:50

2 stops44h 46m

Sydney Kingsford Smith

목 29/1

11:20-23:59

1 stop29h 39m

$1,616

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

토 2/5

06:30-09:35

2 stops36h 05m

Sydney Kingsford Smith

토 16/5

12:00-18:17

1 stop21h 17m

$1,713

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

월 4/5

06:30-13:15

2 stops39h 45m

Sydney Kingsford Smith

월 18/5

12:00-18:17

1 stop21h 17m

$1,713

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

월 18/5

06:30-10:20

2 stops36h 50m

Sydney Kingsford Smith

화 26/5

12:00-16:10

1 stop19h 10m

$1,713

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

화 10/2

07:04-07:25

1 stop31h 21m

Sydney Kingsford Smith

화 17/2

11:20-23:48

1 stop29h 28m

$1,714

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

토 7/3

06:30-09:00

1 stop33h 30m

Sydney Kingsford Smith

토 14/3

13:05-17:13

1 stop20h 08m

$1,714

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

수 8/4

12:12-08:00

2 stops28h 48m

Sydney Kingsford Smith

토 18/4

12:00-18:07

1 stop21h 07m

$1,875

Flights are sorted by cheapest return flights first.

Deals found on 26/12

Showing 1-10 of 35 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, May is the cheapest month in which you can book a flight from Missouri to Sydney (average of $845). Flying from Missouri to Sydney in July is currently the most expensive (average of $1,844). 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.

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 Qantas Airways fly from Missouri to Sydney in about 32h 56m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 14571 km.

  • 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, May is the cheapest month in which you can book a flight from Missouri to Sydney (average of $845). Flying from Missouri to Sydney in July is currently the most expensive (average of $1,844). 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
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Cronulla
Bondi Beach

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Fly with Cheapflights

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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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