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

Air New Zealand and Qantas Airways are the most popular carriers operating from Missouri to Sydney Kingsford Smith

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 19h 56m and 21h 04m, respectively.

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.

$707 Cheap Flights from Missouri to Sydney in 2026

1 adult

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Find the cheapest flights from Missouri to Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

05:10 - 07:20

STL

SYD

35h 10m

2 stops

09:20 - 12:40

SYD

STL

42h 20m

2 stops

$1,665Air Canada

Mon, 14 Sep - Fri, 18 Sep

12:10 - 07:20

STL

SYD

28h 10m

2 stops

09:20 - 18:41

SYD

STL

48h 21m

2 stops

$1,675Air Canada

Fri, 18 Sep - Thu, 24 Sep

16:06 - 07:20

STL

SYD

24h 14m

2 stops

09:20 - 20:43

SYD

STL

26h 23m

2 stops

$1,677Air Canada

Tue, 12 May - Sun, 24 May

12:10 - 07:20

STL

SYD

28h 10m

2 stops

09:20 - 18:41

SYD

STL

48h 21m

3 stops

$1,684Air Canada

Mon, 14 Sep - Fri, 18 Sep

12:10 - 07:20

STL

SYD

28h 10m

2 stops

09:20 - 18:41

SYD

STL

48h 21m

3 stops

$1,687Air Canada

Fri, 18 Sep - Thu, 24 Sep

12:10 - 07:20

STL

SYD

52h 10m

3 stops

09:20 - 18:41

SYD

STL

48h 21m

3 stops

$1,696Air Canada

Mon, 14 Sep - Fri, 18 Sep

05:10 - 07:20

STL

SYD

35h 10m

2 stops

09:20 - 23:50

SYD

STL

29h 30m

2 stops

$1,709Air Canada

Mon, 7 Sep - Mon, 14 Sep

16:05 - 07:20

STL

SYD

48h 15m

2 stops

09:20 - 20:25

SYD

STL

26h 05m

2 stops

$1,712Air Canada

Sun, 26 Apr - Sun, 10 May

05:10 - 07:20

STL

SYD

35h 10m

2 stops

09:20 - 14:00

SYD

STL

43h 40m

2 stops

$1,715Air Canada

Mon, 7 Sep - Mon, 14 Sep

14:15 - 07:20

STL

SYD

26h 05m

1 stop

09:20 - 20:43

SYD

STL

26h 23m

2 stops

$1,726Multiple Airlines

Tue, 12 May - Sun, 24 May

Qantas Airways flights from Missouri to Sydney

Our best Qantas Airways deals on Missouri to Sydney flight tickets

Qantas Airways

4 May

STL06:21Lambert-St Louis

44h 19m

2 stops

SYD17:40Sydney Kingsford Smith

18 May

SYD12:00Sydney Kingsford Smith

22h 30m

1 stop

STL19:30Lambert-St Louis

$1,870

Qantas Airways

19 Apr

STL06:21Lambert-St Louis

40h 29m

2 stops

SYD13:50Sydney Kingsford Smith

29 Apr

SYD12:00Sydney Kingsford Smith

20h 21m

1 stop

STL17:21Lambert-St Louis

$2,014

Qantas Airways

4 May

STL18:11Lambert-St Louis

21h 44m

1 stop

SYD06:55Sydney Kingsford Smith

18 May

SYD12:00Sydney Kingsford Smith

20h 21m

1 stop

STL17:21Lambert-St Louis

$2,031

Delta flights from Missouri to Sydney

Our best Delta deals on Missouri to Sydney flight tickets

Delta

8 May

MCI14:06Kansas City

25h 44m

2 stops

SYD06:50Sydney Kingsford Smith

15 May

SYD09:15Sydney Kingsford Smith

20h 46m

1 stop

MCI15:01Kansas City

$2,313

Delta

18 July

MCI05:39Kansas City

34h 11m

2 stops

SYD06:50Sydney Kingsford Smith

29 July

SYD09:15Sydney Kingsford Smith

20h 35m

1 stop

MCI14:50Kansas City

$2,740

Delta

18 July

MCI14:56Kansas City

24h 54m

2 stops

SYD06:50Sydney Kingsford Smith

29 July

SYD09:15Sydney Kingsford Smith

24h 15m

2 stops

MCI18:30Kansas City

$2,834

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 14/9

05:10-07:20

2 stops35h 10m

Sydney Kingsford Smith

Fri 18/9

09:20-12:40

2 stops42h 20m

$1,665

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 18/9

12:10-07:20

2 stops28h 10m

Sydney Kingsford Smith

Thu 24/9

09:20-18:41

2 stops48h 21m

$1,675

Fastest return journey

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 12/5

16:06-07:20

2 stops24h 14m

Sydney Kingsford Smith

Sun 24/5

09:20-20:43

2 stops26h 23m

$1,677

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 14/9

12:10-07:20

2 stops28h 10m

Sydney Kingsford Smith

Fri 18/9

09:20-18:41

3 stops48h 21m

$1,684

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 18/9

12:10-07:20

2 stops28h 10m

Sydney Kingsford Smith

Thu 24/9

09:20-18:41

3 stops48h 21m

$1,687

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 14/9

12:10-07:20

3 stops52h 10m

Sydney Kingsford Smith

Fri 18/9

09:20-18:41

3 stops48h 21m

$1,696

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 7/9

05:10-07:20

2 stops35h 10m

Sydney Kingsford Smith

Mon 14/9

09:20-23:50

2 stops29h 30m

$1,709

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 26/4

16:05-07:20

2 stops48h 15m

Sydney Kingsford Smith

Sun 10/5

09:20-20:25

2 stops26h 05m

$1,712

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 7/9

05:10-07:20

2 stops35h 10m

Sydney Kingsford Smith

Mon 14/9

09:20-14:00

2 stops43h 40m

$1,715

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 12/5

14:15-07:20

1 stop26h 05m

Sydney Kingsford Smith

Sun 24/5

09:20-20:43

2 stops26h 23m

$1,726

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 September is, on average, the cheapest month to fly to Sydney from Missouri, with most prices found around $1,629. If you aren’t able to travel to Sydney during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,802.

Can stopping save me money on Missouri to Sydney flights?

You could potentially save up to 11% 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	19h 56m
Direct flights	None

The fastest flight from Missouri to Sydney takes 19h 56m

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

Search flight deals

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.

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

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.