How long is the flight from Missouri to Sydney?

For as low as $1,231, Qantas Airways can have you in Sydney from Missouri in 22h 04m. The distance from Missouri to Sydney is about 8839 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular routes from Missouri to Sydney?

The most popular route from Missouri to Sydney is Lambert-St Louis - Sydney Kingsford Smith. You may also consider Kansas City - Sydney Kingsford Smith or Columbia Regional - Sydney Kingsford Smith.

What are the most popular airlines that fly from Missouri to Sydney?

United Airlines, Qantas Airways and American Airlines are the most popular airlines when flying from Missouri to Sydney.

What airport do you fly into for flights to Sydney from Missouri?

Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Missouri to Sydney. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

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 vacation 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.

$520+ Flights from Missouri to Sydney

Q: How much does it cost to fly round-trip from Missouri to Sydney?

Airfare is below average for this route at the moment. Missouri to Sydney flights typically cost between $1,304 and $1,751 in February. The cheapest round-trip price found within the last 3 days was $918 on Qantas Airways (Feb 8-Feb 15).

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Cheap flight deals from Missouri to Sydney

Cheapest flights from Missouri to Sydney
Explore the most affordable flight options available from Missouri to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Tue 12/306:44 pmSTL - SYD

2 stops24h 11mQantas Airways

Tue 1/611:20 amSYD - STL

1 stop29h 39mQantas Airways

Deal found 12/25

$1,064

Mon 12/292:00 pmMCI - SYD

2 stops39h 25mQantas Airways

Fri 1/168:00 amSYD - MCI

2 stops30h 27mQantas Airways

Deal found 12/24

$1,261

Mon 12/292:00 pmMCI - SYD

2 stops36h 15mQantas Airways

Thu 1/1510:00 pmSYD - MCI

2 stops40h 27mQantas Airways

Deal found 12/24

$1,268

Mon 12/292:00 pmMCI - SYD

2 stops39h 25mQantas Airways

Sat 1/177:15 pmSYD - MCI

2 stops38h 32mQantas Airways

Deal found 12/24

$1,373

Tue 12/305:40 pmMCI - SYD

2 stops28h 10mQantas Airways

Wed 1/141:05 pmSYD - MCI

2 stops41h 00mQantas Airways

Deal found 12/24

$1,377

Mon 12/292:00 pmMCI - SYD

2 stops36h 45mQantas Airways

Mon 1/127:15 pmSYD - MCI

2 stops38h 34mQantas Airways

Deal found 12/24

$1,386

Tue 12/305:40 pmMCI - SYD

2 stops28h 10mQantas Airways

Fri 1/167:00 amSYD - MCI

2 stops31h 27mQantas Airways

Deal found 12/24

$1,402

Tue 12/305:40 pmMCI - SYD

2 stops25h 15mQantas Airways

Thu 1/157:15 pmSYD - MCI

2 stops43h 12mQantas Airways

Deal found 12/24

$1,409

Tue 12/305:40 pmMCI - SYD

2 stops25h 15mQantas Airways

Sun 1/116:20 amSYD - MCI

2 stops23h 45mQantas Airways

Deal found 12/24

$1,438

Wed 12/312:00 pmMCI - SYD

2 stops31h 50mQantas Airways

Sat 1/177:15 pmSYD - MCI

2 stops34h 50mQantas Airways

Deal found 12/24

$1,460

Sat 12/271:59 pmMCI - SYD

2 stops26h 01mQantas Airways

Fri 1/1610:05 amSYD - MCI

2 stops28h 22mQantas Airways

Deal found 12/24

$1,556

Sat 12/271:59 pmMCI - SYD

2 stops26h 01mQantas Airways

Thu 1/155:15 pmSYD - MCI

2 stops45h 12mQantas Airways

Deal found 12/24

$1,563

Best flights from Missouri to Sydney
Discover carefully curated flight deals from Missouri to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Sat 1/317:04 amSTL - SYD

1 stop32h 56mQantas Airways

Fri 2/137:15 pmSYD - STL

2 stops45h 33mQantas Airways

Deal found 12/25

$982

Thu 1/293:46 pmMCI - SYD

1 stop22h 04mDelta

Sat 2/1410:40 amSYD - MCI

1 stop21h 11mDelta

Deal found 12/24

$1,231

Sun 2/83:10 pmCOU - SYD

2 stops24h 55mUnited Airlines

Sun 2/1512:10 pmSYD - COU

2 stops25h 14mUnited Airlines

Deal found 12/25

$1,618

Sat 5/26:30 amSTL - SYD

2 stops38h 25mQantas Airways

Sat 5/1612:00 pmSYD - STL

1 stop19h 11mQantas Airways

Deal found 12/25

$1,150

Sun 2/812:49 pmCOU - SYD

3 stops25h 36mMultiple Airlines

Sun 2/155:45 pmSYD - COU

2 stops21h 49mMultiple Airlines

Deal found 12/25

$2,303

Mon 5/46:30 amSTL - SYD

2 stops35h 50mQantas Airways

Mon 5/1812:00 pmSYD - STL

1 stop21h 17mQantas Airways

Deal found 12/25

$1,150

Sun 2/87:04 amSTL - SYD

1 stop32h 56mQantas Airways

Sun 2/155:45 pmSYD - STL

1 stop23h 03mQantas Airways

Deal found 12/25

$1,151

Mon 5/186:30 amSTL - SYD

2 stops36h 50mQantas Airways

Tue 5/2612:00 pmSYD - STL

1 stop19h 10mQantas Airways

Deal found 12/26

$1,151

Sat 3/146:38 amSTL - SYD

1 stop34h 22mQantas Airways

Mon 3/231:05 pmSYD - STL

1 stop20h 08mQantas Airways

Deal found 12/24

$1,151

Sat 3/216:38 amSTL - SYD

1 stop34h 22mQantas Airways

Fri 4/31:00 pmSYD - STL

1 stop22h 29mQantas Airways

Deal found 12/25

$1,152

Sat 2/71:02 pmMCI - SYD

2 stops26h 13mQantas Airways

Sat 2/142:05 pmSYD - MCI

1 stop21h 45mQantas Airways

Deal found 12/24

$1,161

Wed 2/411:17 amCOU - SYD

2 stops26h 43mUnited Airlines

Sun 2/82:00 pmSYD - COU

2 stops24h 37mUnited Airlines

Deal found 12/23

$2,118

Mon 2/911:17 amCOU - SYD

2 stops26h 03mUnited Airlines

Thu 2/1211:20 amSYD - COU

2 stops26h 04mUnited Airlines

Deal found 12/25

$2,169

Thu 1/12:00 pmMCI - SYD

2 stops31h 55mQantas Airways

Fri 1/1611:45 amSYD - MCI

2 stops26h 42mQantas Airways

Deal found 12/24

$1,261

Thu 1/12:00 pmMCI - SYD

2 stops35h 15mQantas Airways

Thu 1/159:00 pmSYD - MCI

2 stops41h 27mQantas Airways

Deal found 12/24

$1,268

Sat 2/142:02 pmMCI - SYD

2 stops26h 43mQantas Airways

Wed 2/182:05 pmSYD - MCI

1 stop21h 42mQantas Airways

Deal found 12/23

$1,367

Mon 12/292:00 pmMCI - SYD

2 stops38h 00mQantas Airways

Sat 1/177:15 pmSYD - MCI

2 stops38h 32mQantas Airways

Deal found 12/24

$1,373

Tue 12/305:40 pmMCI - SYD

2 stops28h 10mQantas Airways

Thu 1/159:00 pmSYD - MCI

2 stops41h 27mQantas Airways

Deal found 12/24

$1,409

Wed 2/45:07 pmCOU - SYD

1 stop20h 48mQantas Airways

Sun 2/82:05 pmSYD - COU

1 stop19h 32mQantas Airways

Deal found 12/24

$2,849

Mon 2/95:07 pmCOU - SYD

1 stop20h 48mQantas Airways

Thu 2/122:05 pmSYD - COU

1 stop20h 18mQantas Airways

Deal found 12/25

$2,900

Last-minute flights from Missouri to Sydney
Discover last-minute flight deals from Missouri to Sydney. Data last updated December 26, 2025 and is based on user searches.

Mon 12/292:00 pmMCI - SYD

2 stops39h 25mQantas Airways

Fri 1/168:00 amSYD - MCI

2 stops30h 27mQantas Airways

Deal found 12/24

$1,261

Mon 12/292:00 pmMCI - SYD

2 stops36h 15mQantas Airways

Thu 1/1510:00 pmSYD - MCI

2 stops40h 27mQantas Airways

Deal found 12/24

$1,268

Mon 12/292:00 pmMCI - SYD

2 stops39h 25mQantas Airways

Sat 1/177:15 pmSYD - MCI

2 stops38h 32mQantas Airways

Deal found 12/24

$1,373

Mon 12/292:00 pmMCI - SYD

2 stops36h 45mQantas Airways

Mon 1/127:15 pmSYD - MCI

2 stops38h 34mQantas Airways

Deal found 12/24

$1,386

Tue 12/306:44 pmSTL - SYD

2 stops24h 11mQantas Airways

Tue 1/611:20 amSYD - STL

1 stop29h 39mQantas Airways

Deal found 12/25

$1,064

Tue 12/305:40 pmMCI - SYD

2 stops28h 10mQantas Airways

Wed 1/141:05 pmSYD - MCI

2 stops41h 00mQantas Airways

Deal found 12/24

$1,377

Tue 12/305:40 pmMCI - SYD

2 stops28h 10mQantas Airways

Fri 1/167:00 amSYD - MCI

2 stops31h 27mQantas Airways

Deal found 12/24

$1,402

Fri 1/1611:55 amSTL - SYD

2 stops50h 40mQantas Airways

Fri 1/2311:20 amSYD - STL

1 stop29h 39mQantas Airways

Deal found 12/26

$1,159

Thu 1/227:04 amSTL - SYD

2 stops44h 46mQantas Airways

Thu 1/2911:20 amSYD - STL

1 stop29h 39mQantas Airways

Deal found 12/24

$1,231

Thu 1/293:46 pmMCI - SYD

1 stop22h 04mDelta

Sat 2/1410:40 amSYD - MCI

1 stop21h 11mDelta

Deal found 12/24

$1,231

Sat 1/317:04 amSTL - SYD

1 stop32h 56mQantas Airways

Fri 2/137:15 pmSYD - STL

2 stops45h 33mQantas Airways

Deal found 12/25

$982

Sat 1/314:15 pmSTL - SYD

2 stops48h 20mAir Canada

Fri 2/1311:20 amSYD - STL

2 stops45h 09mAir Canada

Deal found 12/25

$1,244

One-way flights from Missouri to Sydney
Search for one-way flight options from Missouri to Sydney. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Tue 3/245:21 pmMCI - SYD

2 stops23h 14mMultiple Airlines

Deal found 12/26

$520

Tue 3/246:00 amMCI - SYD

2 stops34h 35mAir Canada

Deal found 12/25

$558

Sat 2/75:10 pmMCI - SYD

2 stops23h 25mMultiple Airlines

Deal found 12/25

$562

Tue 3/241:58 pmMCI - SYD

1 stop24h 57mQantas Airways

Deal found 12/25

$563

Sat 2/71:02 pmMCI - SYD

1 stop24h 53mQantas Airways

Deal found 12/25

$569

Sat 3/215:21 pmMCI - SYD

2 stops47h 14mAir Canada

Deal found 12/26

$576

Fri 3/138:00 amMCI - SYD

2 stops31h 00mUnited Airlines

Deal found 12/25

$586

Mon 3/231:58 pmMCI - SYD

1 stop24h 57mQantas Airways

Deal found 12/26

$596

Sun 3/226:13 pmMCI - SYD

1 stop20h 42mQantas Airways

Deal found 12/26

$599

Wed 3/255:30 pmMCI - SYD

1 stop23h 45mUnited Airlines

Deal found 12/26

$642

Mon 3/24:05 pmSTL - SYD

2 stops48h 30mAir Canada

Deal found 12/24

$672

Thu 2/124:39 pmSTL - SYD

1 stop21h 21mUnited Airlines

Deal found 12/24

$833

Find flight deals from Missouri to Sydney

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$918 (oojo)
One-way from	$520 (Air Canada)
Popular in	December
Cheapest in	August
Average price	$1,766

Provider with most accurate pricing for Lambert-St Louis-Sydney Kingsford Smith flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Sydney Kingsford Smith flights.

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From Missouri to Sydney Kingsford Smith

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One-way flight from Missouri to Sydney Kingsford Smith

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($70 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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Fly from

Fly to

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 1/31

7:04 am-9:00 am

1 stop32h 56m

Sydney Kingsford Smith

Fri 2/13

7:15 pm-11:48 pm

2 stops45h 33m

$982

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 5/2

6:30 am-11:55 am

2 stops38h 25m

Sydney Kingsford Smith

Sat 5/16

12:00 pm-4:11 pm

1 stop19h 11m

$1,150

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 5/4

6:30 am-9:20 am

2 stops35h 50m

Sydney Kingsford Smith

Mon 5/18

12:00 pm-6:17 pm

1 stop21h 17m

$1,150

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 2/8

7:04 am-9:00 am

1 stop32h 56m

Sydney Kingsford Smith

Sun 2/15

5:45 pm-11:48 pm

1 stop23h 03m

$1,151

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 5/18

6:30 am-10:20 am

2 stops36h 50m

Sydney Kingsford Smith

Tue 5/26

12:00 pm-4:10 pm

1 stop19h 10m

$1,151

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 3/14

6:38 am-9:00 am

1 stop34h 22m

Sydney Kingsford Smith

Mon 3/23

1:05 pm-5:13 pm

1 stop20h 08m

$1,151

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 3/21

6:38 am-9:00 am

1 stop34h 22m

Sydney Kingsford Smith

Fri 4/3

1:00 pm-7:29 pm

1 stop22h 29m

$1,152

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sat 2/7

1:02 pm-8:15 am

2 stops26h 13m

Sydney Kingsford Smith

Sat 2/14

2:05 pm-6:50 pm

1 stop21h 45m

$1,161

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 1/29

3:46 pm-6:50 am

1 stop22h 04m

Sydney Kingsford Smith

Sat 2/14

10:40 am-2:51 pm

1 stop21h 11m

$1,231

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Thu 1/1

2:00 pm-2:55 pm

2 stops31h 55m

Sydney Kingsford Smith

Fri 1/16

11:45 am-9:27 pm

2 stops26h 42m

$1,261

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 33 results

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 round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, May is the cheapest month in which you can book a flight from Missouri to Sydney (average of $568). Flying from Missouri to Sydney in July is currently the most expensive (average of $1,239). 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.

What is the cheapest time of day to fly from MO to SYD?

Unlike in the evening, when flights are generally more expensive, you can save up to 9% on flights from Missouri to Sydney by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip from Missouri to Sydney?

Related info for your journey

What airport do you fly into for flights to Sydney from Missouri?
Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Missouri to Sydney. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.
How long is the flight from Missouri to Sydney?
For as low as $1,231, Qantas Airways can have you in Sydney from Missouri in 22h 04m. The distance from Missouri to Sydney is about 8839 mi. This flight may include one or multiple stops.
What are the most popular routes from Missouri to Sydney?
The most popular route from Missouri to Sydney is Lambert-St Louis - Sydney Kingsford Smith. You may also consider Kansas City - Sydney Kingsford Smith or Columbia Regional - Sydney Kingsford Smith.
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 vacation 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, May is the cheapest month in which you can book a flight from Missouri to Sydney (average of $568). Flying from Missouri to Sydney in July is currently the most expensive (average of $1,239). 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

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Top 6 airlines flying from Missouri to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$822	Average$1,286	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$897	Average$1,215	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$1,044	Average$1,486	FlexibilityNo cancel fee	On-time71%
Qantas Airways	Cheapest$1,130	Average$1,449	FlexibilityNo cancel fee	On-time74%
Fiji Airways	Cheapest$1,132	Average$1,222	FlexibilityNo cancel fee	On-time74%
Delta	Cheapest$1,160	Average$1,461	FlexibilityNo cancel fee	On-timeN/A

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$520+ Cheap flights from Missouri to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Missouri to Sydney

Cheapest flights from Missouri to SydneyExplore the most affordable flight options available from Missouri to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Explore the most affordable flight options available from Missouri to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Find flight deals from Missouri to Sydney

Keep the following information in mind while searching for Missouri to Sydney flight deals. Data was last updated December 26, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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?

What is the cheapest time of day to fly from MO to SYD?

Find hourly flight availability from Missouri to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.

How much does it cost to fly round-trip from Missouri to Sydney?

Related info for your journey

Find useful and relevant information for your journey from Missouri to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Sydney from Missouri?

How long is the flight from Missouri to Sydney?

What are the most popular routes from Missouri to Sydney?

Can I find deals for flights from Missouri to Sydney that include hotel bookings?

How can I find direct flights from Missouri to Sydney?

Can I find deals for business class flights from Missouri to Sydney?

What is the cheapest month to book a flight from Missouri to Sydney?

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Alternative routes for Missouri to Sydney

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Top 6 airlines flying from Missouri to Sydney

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Cheapest flights from Missouri to Sydney
Explore the most affordable flight options available from Missouri to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.