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Cheap flights from Missouri to Sydney from $852

STL — SYD
20 Nov — 27 Nov1
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

Mon 26/1013:40 -
2 stops26h 55m
Mon 9/1111:20 -
2 stops23h 45m
Deal found 21/10$1,490
Sat 24/1012:10 -
2 stops52h 25m
Sat 31/1010:20 -
2 stops46h 03m
Deal found 21/10$1,548
Wed 18/1116:05 -
2 stops48h 30m
Wed 25/1111:20 -
2 stops45h 06m
Deal found 21/10$1,555
Tue 10/1111:03 -
1 stop26h 52m
Mon 16/1114:05 -
1 stop19h 22m
Deal found 19/10$1,681
Mon 26/1015:20 -
1 stop23h 35m
Mon 9/1114:05 -
1 stop21h 11m
Deal found 21/10$1,697
Mon 26/1015:20 -
2 stops25h 40m
Mon 9/1114:05 -
1 stop23h 15m
Deal found 21/10$1,698
Wed 28/1012:47 -
1 stop26h 08m
Wed 4/1111:10 -
1 stop26h 32m
Deal found 19/10$1,711
Wed 18/1114:55 -
1 stop23h 05m
Wed 25/1109:15 -
1 stop24h 35m
Deal found 21/10$1,714
Mon 26/1013:40 -
2 stops26h 55m
Mon 9/1111:20 -
3 stops29h 04m
Deal found 21/10$1,715
Mon 26/1015:20 -
1 stop23h 35m
Sun 1/1114:05 -
1 stop21h 11m
Deal found 19/10$1,751
Sun 8/1105:45 -
2 stops34h 50m
Thu 12/1111:20 -
3 stops47h 10m
Deal found 19/10$1,763
Mon 16/1114:54 -
1 stop23h 01m
Mon 23/1107:20 -
2 stops22h 06m
Deal found 17/10$1,770

Find flight deals from Missouri to Sydney

Round-trip from

$1,550

One-way from

$852

Popular in

December

Cheapest in

March

Average price

$2,367
Air Canada
  • Air Canada
  • 8/3-20/3
  • 4 total stops
  • 72h 21m total
  • Missouri to Sydney
Search Deals
27/2-31/12
  • 27/2-31/12
  • 3 total stops
  • 44h 59m total
  • Missouri to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($336 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Missouri to Sydney that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Sat 27/2

20:31-10:30

3 stops44h 59m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$852
Fastest return journey

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Tue 27/10

17:20-06:55

1 stop21h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$892

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Tue 27/10

14:20-09:00

2 stops26h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$911

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Sat 27/2

19:10-11:45

2 stops23h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$994

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Thu 12/11

14:50-09:00

2 stops25h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$996

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Mon 1/2

14:39-09:00

2 stops25h 21m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,036

Kansas CitySydney

MCI Kansas City - SYD Sydney Kingsford Smith

MCISYD

Kansas City

Mon 1/2

14:38-11:05

3 stops27h 27m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,041

St. LouisSydney

STL Lambert-St Louis - SYD Sydney Kingsford Smith

STLSYD

Lambert-St Louis

Sat 20/2

09:01-06:25

3 stops28h 24m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,059

St. LouisSydney

STL Lambert-St Louis - SYD Sydney Kingsford Smith

STLSYD

Lambert-St Louis

Sat 23/1

18:45-06:20

2 stops42h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,119

St. LouisSydney

STL Lambert-St Louis - SYD Sydney Kingsford Smith

STLSYD

Lambert-St Louis

Sat 2/1

19:55-19:25

3 stops54h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,384

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 32 resultsSorted by cheapest first
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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

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, July is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,837). Flying from Missouri to Sydney in December is currently the most expensive (average of $2,392). 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?

Airfare is below average for this route at the moment.
Missouri to Sydney flights typically cost between $2,003 and $2,541 in March.
The cheapest return price found within the last 5 days was $1,550 on Multiple Airlines (8 Mar–20 Mar).

Related info for your journey

  • 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 United Airlines and Air Canada fly from Missouri to Sydney in about 27h. The time it takes to get you to your destination can typically vary by up to 7h 50m. Airlines will cover a distance of 14571 km. This flight may include one or multiple stops.

  • 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, July is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,837). Flying from Missouri to Sydney in December is currently the most expensive (average of $2,392). 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
Penrith
Manly
Lithgow
Cronulla
Terrigal
Katoomba
Randwick
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

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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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