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 21h 25m and 23h 35m, respectively.

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

United Airlines, Fiji Airways, 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.

$1,004 Cheap Flights from Missouri to Sydney in 2025

1 adult

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Find the cheapest flights from Missouri to Sydney

Round-trip

One-way

Last minute

Cheap return flights

16:05 - 09:35STL-SYD

48h 30m2 stops

11:20 - 15:29SYD-STL

45h 09m2 stops

$1,485Air Canada

Find Deal

Mon, 17 Nov - Sat, 22 Nov

13:30 - 09:35STL-SYD

27h 05m2 stops

11:20 - 15:29SYD-STL

45h 09m2 stops

$1,556

Find Deal

Sun, 1 Feb - Sun, 15 Feb

16:05 - 08:35STL-SYD

48h 30m2 stops

11:20 - 15:29SYD-STL

45h 09m2 stops

$1,581Air Canada

Find Deal

Wed, 29 Oct - Sat, 15 Nov

13:45 - 07:20MCI-SYD

26h 35m2 stops

09:20 - 20:42SYD-MCI

26h 22m2 stops

$1,585

Find Deal

Wed, 3 Sep - Wed, 17 Sep

17:54 - 12:15STL-SYD

25h 21m2 stops

14:20 - 16:06SYD-STL

18h 46m1 stop

$1,673Qantas Airways

Find Deal

Sun, 1 Feb - Sun, 15 Feb

16:07 - 06:55STL-SYD

21h 48m1 stop

07:20 - 11:40SYD-STL

21h 20m2 stops

$1,686Qantas Airways

Find Deal

Fri, 28 Nov - Sun, 14 Dec

13:12 - 06:55MCI-SYD

26h 43m1 stop

12:10 - 21:04SYD-MCI

23h 54m1 stop

$1,860American Airlines

Find Deal

Thu, 18 Sep - Thu, 25 Sep

13:14 - 06:55MCI-SYD

26h 41m1 stop

09:10 - 20:47SYD-MCI

26h 37m2 stops

$1,877American Airlines

Find Deal

Mon, 15 Sep - Tue, 23 Sep

17:59 - 06:55MCI-SYD

21h 56m1 stop

10:20 - 17:18SYD-MCI

21h 58m1 stop

$1,896United Airlines

Find Deal

Fri, 5 Sep - Sat, 20 Sep

11:41 - 07:00MCI-SYD

28h 19m2 stops

09:30 - 20:42SYD-MCI

26h 12m2 stops

$1,902United Airlines

Find Deal

Thu, 18 Sep - Thu, 25 Sep

United Airlines flights from Missouri to Sydney

Our best United Airlines deals on Missouri to Sydney flight tickets

United Airlines

5 Sept

MCI17:59Kansas City

21h 56m

1 stop

SYD06:55Sydney Kingsford Smith

20 Sept

SYD10:20Sydney Kingsford Smith

21h 58m

1 stop

MCI17:18Kansas City

$1,896

Find similar

United Airlines

18 Sept

MCI11:41Kansas City

28h 19m

2 stops

SYD07:00Sydney Kingsford Smith

25 Sept

SYD09:30Sydney Kingsford Smith

26h 12m

2 stops

MCI20:42Kansas City

$1,902

Find similar

United Airlines

7 Aug

STL17:41Lambert-St Louis

22h 14m

1 stop

SYD06:55Sydney Kingsford Smith

20 Aug

SYD10:20Sydney Kingsford Smith

21h 33m

1 stop

STL16:53Lambert-St Louis

$1,978

Find similar

Air Canada flights from Missouri to Sydney

Our best Air Canada deals on Missouri to Sydney flight tickets

Air Canada

17 Nov

STL16:05Lambert-St Louis

48h 30m

2 stops

SYD09:35Sydney Kingsford Smith

22 Nov

SYD11:20Sydney Kingsford Smith

45h 09m

2 stops

STL15:29Lambert-St Louis

$1,485

Find similar

Air Canada

29 Oct

STL16:05Lambert-St Louis

48h 30m

2 stops

SYD08:35Sydney Kingsford Smith

15 Nov

SYD11:20Sydney Kingsford Smith

45h 09m

2 stops

STL15:29Lambert-St Louis

$1,581

Find similar

Air Canada

29 Oct

STL16:05Lambert-St Louis

48h 30m

2 stops

SYD08:35Sydney Kingsford Smith

15 Nov

SYD11:20Sydney Kingsford Smith

45h 09m

2 stops

STL15:29Lambert-St Louis

$1,582

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 17/11

16:05-09:35

2 stops48h 30m

Sydney Kingsford Smith

Sat 22/11

11:20-15:29

2 stops45h 09m

$1,485

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 1/2

13:30-09:35

2 stops27h 05m

Sydney Kingsford Smith

Sun 15/2

11:20-15:29

2 stops45h 09m

$1,556

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 29/10

16:05-08:35

2 stops48h 30m

Sydney Kingsford Smith

Sat 15/11

11:20-15:29

2 stops45h 09m

$1,581

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 3/9

13:45-07:20

2 stops26h 35m

Sydney Kingsford Smith

Wed 17/9

09:20-20:42

2 stops26h 22m

$1,585

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 1/2

17:54-12:15

2 stops25h 21m

Sydney Kingsford Smith

Sun 15/2

14:20-16:06

1 stop18h 46m

$1,673

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 28/11

16:07-06:55

1 stop21h 48m

Sydney Kingsford Smith

Sun 14/12

07:20-11:40

2 stops21h 20m

$1,686

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 18/9

13:12-06:55

1 stop26h 43m

Sydney Kingsford Smith

Thu 25/9

12:10-21:04

1 stop23h 54m

$1,860

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Mon 15/9

13:14-06:55

1 stop26h 41m

Sydney Kingsford Smith

Tue 23/9

09:10-20:47

2 stops26h 37m

$1,877

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Fri 5/9

17:59-06:55

1 stop21h 56m

Sydney Kingsford Smith

Sat 20/9

10:20-17:18

1 stop21h 58m

$1,896

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 18/9

11:41-07:00

2 stops28h 19m

Sydney Kingsford Smith

Thu 25/9

09:30-20:42

2 stops26h 12m

$1,902

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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 October is, on average, the cheapest month to fly to Sydney from Missouri, with most prices found around $1,992. If you aren’t able to travel to Sydney during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $2,066.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,204. The most expensive day to fly to Sydney is Monday, with ticket prices averaging around $2,315.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Missouri to Sydney in the afternoon for as low as $2,235. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $2,811 on average. Flights to Sydney from Missouri in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,246 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Missouri for as low as $1,932 on momondo.

Can stopping save me money on Missouri to Sydney flights?

You could potentially save up to 7% 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

Best price found	$1,004
Fastest flight time	19h 59m
Direct flights	None
Airports in Sydney	1 airport

The best one-way flight to Sydney from Missouri in the past 72 hours is $1,004. The best return flight deal from Missouri to Sydney found on momondo in the last 72 hours is $1,485.

The fastest flight from Missouri to Sydney takes 19h 59m

There are no direct flights from Missouri to Sydney. Popular non-direct routes for this connection are Lambert-St Louis Airport - Sydney Kingsford Smith Airport and Kansas City Airport - Sydney Kingsford Smith Airport.

There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

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.

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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.