How long does it take to fly to Sydney?

If you’re flying from a popular airport in Missouri, such as Kansas City or St. Louis, and flying into Sydney, then you can expect flight times to average 20h 02m and 20h 31m, respectively.

What is the cheapest airline that flies from Missouri to Sydney Kingsford Smith?

United Airlines, Delta, and American Airlines are the most popular carriers operating from Missouri to Sydney Kingsford Smith

When did momondo last update prices for flights from Missouri to Sydney Kingsford Smith Airport?

Prices for flights from Missouri to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How old do you have to be to fly from Missouri to Sydney Kingsford Smith Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$793 Cheap Flights from Missouri to Sydney in 2026

Find the cheapest flights from Missouri to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:53 - 06:55

MCI

SYD

20h 02m

1 stop

12:00 - 18:34

SYD

MCI

21h 34m

1 stop

$1,651Qantas Airways

Wed, 29 Jul - Mon, 17 Aug

06:00 - 07:30

STL

SYD

34h 30m

1 stop

09:10 - 22:59

SYD

STL

28h 49m

1 stop

$1,666Qantas Airways

Mon, 10 Aug - Mon, 17 Aug

13:40 - 06:55

MCI

SYD

26h 15m

2 stops

10:20 - 14:33

SYD

MCI

19h 13m

1 stop

$1,719United Airlines

Wed, 29 Jul - Mon, 17 Aug

16:48 - 07:00

STL

SYD

23h 12m

2 stops

10:20 - 18:39

SYD

STL

23h 19m

1 stop

$1,719United Airlines

Mon, 10 Aug - Mon, 17 Aug

14:30 - 07:30

MCI

SYD

26h 00m

2 stops

09:10 - 16:29

SYD

MCI

22h 19m

2 stops

$1,721American Airlines

Wed, 29 Jul - Mon, 17 Aug

13:38 - 07:00

STL

SYD

26h 22m

2 stops

09:30 - 19:16

SYD

STL

24h 46m

2 stops

$1,725United Airlines

Mon, 10 Aug - Mon, 17 Aug

05:10 - 07:00

STL

SYD

34h 50m

2 stops

10:20 - 16:34

SYD

STL

21h 14m

2 stops

$1,727United Airlines

Sun, 9 Aug - Sun, 16 Aug

06:00 - 07:05

STL

SYD

34h 05m

1 stop

09:10 - 18:05

SYD

STL

23h 55m

2 stops

$1,732American Airlines

Mon, 10 Aug - Mon, 17 Aug

16:40 - 07:00

STL

SYD

23h 20m

2 stops

10:20 - 18:39

SYD

STL

23h 19m

1 stop

$1,786Air New Zealand

Mon, 31 Aug - Mon, 14 Sep

17:24 - 07:00

MCI

SYD

22h 36m

2 stops

09:30 - 20:39

SYD

MCI

26h 09m

2 stops

$1,850Air New Zealand

Sat, 8 Aug - Sat, 15 Aug

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Qantas Airways flights from Missouri to Sydney

Our best Qantas Airways deals on Missouri to Sydney flight tickets

Qantas Airways

29 July

MCI19:53Kansas City

20h 02m

1 stop

SYD06:55Sydney Kingsford Smith

17 Aug

SYD12:00Sydney Kingsford Smith

21h 34m

1 stop

MCI18:34Kansas City

$1,651

Qantas Airways

10 Aug

STL06:00Lambert-St Louis

34h 30m

1 stop

SYD07:30Sydney Kingsford Smith

17 Aug

SYD09:10Sydney Kingsford Smith

28h 49m

1 stop

STL22:59Lambert-St Louis

$1,666

Qantas Airways

31 Aug

STL06:00Lambert-St Louis

34h 05m

1 stop

SYD07:05Sydney Kingsford Smith

14 Sept

SYD09:10Sydney Kingsford Smith

29h 30m

1 stop

STL23:40Lambert-St Louis

$1,770

American Airlines flights from Missouri to Sydney

Our best American Airlines deals on Missouri to Sydney flight tickets

American Airlines

29 July

MCI14:30Kansas City

26h 00m

2 stops

SYD07:30Sydney Kingsford Smith

17 Aug

SYD09:10Sydney Kingsford Smith

22h 19m

2 stops

MCI16:29Kansas City

$1,721

American Airlines

10 Aug

STL06:00Lambert-St Louis

34h 05m

1 stop

SYD07:05Sydney Kingsford Smith

17 Aug

SYD09:10Sydney Kingsford Smith

23h 55m

2 stops

STL18:05Lambert-St Louis

$1,732

American Airlines

21 July

STL09:44Lambert-St Louis

30h 11m

1 stop

SYD06:55Sydney Kingsford Smith

28 July

SYD17:50Sydney Kingsford Smith

21h 09m

1 stop

STL23:59Lambert-St Louis

$1,744

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 29/7

19:53-06:55

1 stop20h 02m

Sydney Kingsford Smith

Mon 17/8

12:00-18:34

1 stop21h 34m

$1,651

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 10/8

06:00-07:30

1 stop34h 30m

Sydney Kingsford Smith

Mon 17/8

09:10-22:59

1 stop28h 49m

$1,666

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 29/7

13:40-06:55

2 stops26h 15m

Sydney Kingsford Smith

Mon 17/8

10:20-14:33

1 stop19h 13m

$1,719

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 10/8

16:48-07:00

2 stops23h 12m

Sydney Kingsford Smith

Mon 17/8

10:20-18:39

1 stop23h 19m

$1,719

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 29/7

14:30-07:30

2 stops26h 00m

Sydney Kingsford Smith

Mon 17/8

09:10-16:29

2 stops22h 19m

$1,721

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 10/8

13:38-07:00

2 stops26h 22m

Sydney Kingsford Smith

Mon 17/8

09:30-19:16

2 stops24h 46m

$1,725

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 9/8

05:10-07:00

2 stops34h 50m

Sydney Kingsford Smith

Sun 16/8

10:20-16:34

2 stops21h 14m

$1,727

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 10/8

06:00-07:05

1 stop34h 05m

Sydney Kingsford Smith

Mon 17/8

09:10-18:05

2 stops23h 55m

$1,732

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 31/8

16:40-07:00

2 stops23h 20m

Sydney Kingsford Smith

Mon 14/9

10:20-18:39

1 stop23h 19m

$1,786

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sat 8/8

17:24-07:00

2 stops22h 36m

Sydney Kingsford Smith

Sat 15/8

09:30-20:39

2 stops26h 09m

$1,850

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Sydney?

The month of May is, on average, the cheapest month to fly to Sydney from Missouri, with most prices found around $449. If you aren’t able to travel to Sydney during the month of May, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $738.

Can stopping save me money on Missouri to Sydney flights?

You could potentially save up to 26% on your flight if you consider stops on a Missouri to Sydney flight.

Cheap Missouri to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Sydney

Fastest flight time	20h 02m
Direct flights	None

The fastest flight from Missouri to Sydney takes 20h 02m

There are no direct flights from Missouri to Sydney. There are no popular flight routes from Missouri to Sydney.

Search flight deals

Frequently asked questions about flying from Missouri to Sydney

When did momondo last update prices for flights from Missouri to Sydney Kingsford Smith Airport?
Prices for flights from Missouri to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How old do you have to be to fly from Missouri to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Terrigal

Penrith

Katoomba

Manly

Coogee

Leura

Lithgow

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Sydney?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Missouri to Sydney . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Missouri to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from Missouri which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Missouri to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missouri to Sydney.

I’m not ready to book a flight from Missouri to Sydney right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Missouri and alert you when they change.