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

Air New Zealand, United Airlines, and Air Canada 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 20h 32m, 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.

$880 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.

18:13 - 20:50

STL

SYD

33h 37m

2 stops

11:15 - 23:42

SYD

STL

29h 27m

1 stop

$1,323Qantas Airways

Sun, 1 Nov - Sat, 14 Nov

07:00 - 09:00

STL

SYD

33h 00m

1 stop

17:50 - 12:37

SYD

STL

35h 47m

2 stops

$1,533Qantas Airways

Sat, 7 Nov - Thu, 12 Nov

17:24 - 07:20

MCI

SYD

22h 56m

2 stops

09:20 - 10:50

SYD

MCI

40h 30m

2 stops

$1,597Air Canada

Tue, 2 Jun - Tue, 16 Jun

19:59 - 06:55

MCI

SYD

19h 56m

1 stop

09:30 - 15:45

SYD

MCI

21h 15m

1 stop

$1,622Air New Zealand

Tue, 2 Jun - Sun, 14 Jun

19:23 - 06:55

STL

SYD

20h 32m

1 stop

10:20 - 18:17

SYD

STL

22h 57m

1 stop

$1,622Air New Zealand

Wed, 10 Jun - Wed, 17 Jun

16:26 - 07:00

MCI

SYD

23h 34m

1 stop

09:30 - 15:45

SYD

MCI

21h 15m

1 stop

$1,623United Airlines

Sun, 7 Jun - Wed, 24 Jun

08:42 - 06:55

STL

SYD

31h 13m

1 stop

10:20 - 18:39

SYD

STL

23h 19m

1 stop

$1,623United Airlines

Sun, 16 Aug - Sun, 30 Aug

17:24 - 07:00

MCI

SYD

22h 36m

2 stops

10:20 - 17:30

SYD

MCI

22h 10m

2 stops

$1,629Air New Zealand

Mon, 15 Jun - Wed, 12 Aug

16:48 - 07:00

STL

SYD

23h 12m

2 stops

09:30 - 18:13

SYD

STL

23h 43m

2 stops

$1,629Air New Zealand

Wed, 10 Jun - Wed, 17 Jun

08:55 - 07:20

STL

SYD

31h 25m

2 stops

09:20 - 18:42

SYD

STL

24h 22m

2 stops

$1,672Air Canada

Wed, 22 Jul - Wed, 29 Jul

American Airlines flights from Missouri to Sydney

Our best American Airlines deals on Missouri to Sydney flight tickets

American Airlines

31 July

STL06:37Lambert-St Louis

33h 28m

1 stop

SYD07:05Sydney Kingsford Smith

9 Aug

SYD12:00Sydney Kingsford Smith

22h 51m

1 stop

STL19:51Lambert-St Louis

$1,972

American Airlines

1 July

MCI14:37Kansas City

25h 53m

2 stops

SYD07:30Sydney Kingsford Smith

15 July

SYD17:50Sydney Kingsford Smith

21h 24m

2 stops

MCI00:14Kansas City

$2,254

American Airlines

17 May

MCI14:33Kansas City

25h 57m

2 stops

SYD07:30Sydney Kingsford Smith

19 May

SYD21:25Sydney Kingsford Smith

26h 29m

2 stops

MCI08:54Kansas City

$3,164

Air Canada flights from Missouri to Sydney

Our best Air Canada deals on Missouri to Sydney flight tickets

Air Canada

2 June

MCI17:24Kansas City

22h 56m

2 stops

SYD07:20Sydney Kingsford Smith

16 June

SYD09:20Sydney Kingsford Smith

40h 30m

2 stops

MCI10:50Kansas City

$1,597

Air Canada

22 July

STL08:55Lambert-St Louis

31h 25m

2 stops

SYD07:20Sydney Kingsford Smith

29 July

SYD09:20Sydney Kingsford Smith

24h 22m

2 stops

STL18:42Lambert-St Louis

$1,672

Air Canada

22 July

STL08:55Lambert-St Louis

31h 25m

2 stops

SYD07:20Sydney Kingsford Smith

29 July

SYD09:20Sydney Kingsford Smith

48h 22m

3 stops

STL18:42Lambert-St Louis

$1,685

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 1/11

18:13-20:50

2 stops33h 37m

Sydney Kingsford Smith

Sat 14/11

11:15-23:42

1 stop29h 27m

$1,323

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 7/11

07:00-09:00

1 stop33h 00m

Sydney Kingsford Smith

Thu 12/11

17:50-12:37

2 stops35h 47m

$1,533

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Tue 2/6

17:24-07:20

2 stops22h 56m

Sydney Kingsford Smith

Tue 16/6

09:20-10:50

2 stops40h 30m

$1,597

Fastest return journey

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Tue 2/6

19:59-06:55

1 stop19h 56m

Sydney Kingsford Smith

Sun 14/6

09:30-15:45

1 stop21h 15m

$1,622

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 10/6

19:23-06:55

1 stop20h 32m

Sydney Kingsford Smith

Wed 17/6

10:20-18:17

1 stop22h 57m

$1,622

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sun 7/6

16:26-07:00

1 stop23h 34m

Sydney Kingsford Smith

Wed 24/6

09:30-15:45

1 stop21h 15m

$1,623

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 16/8

08:42-06:55

1 stop31h 13m

Sydney Kingsford Smith

Sun 30/8

10:20-18:39

1 stop23h 19m

$1,623

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Mon 15/6

17:24-07:00

2 stops22h 36m

Sydney Kingsford Smith

Wed 12/8

10:20-17:30

2 stops22h 10m

$1,629

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 10/6

16:48-07:00

2 stops23h 12m

Sydney Kingsford Smith

Wed 17/6

09:30-18:13

2 stops23h 43m

$1,629

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 22/7

08:55-07:20

2 stops31h 25m

Sydney Kingsford Smith

Wed 29/7

09:20-18:42

2 stops24h 22m

$1,672

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 $433. 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 $712.

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

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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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.