HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$560+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missouri to Sydney

Keep the following information in mind while searching for Missouri to Sydney flight deals. Data was last updated April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,204
(StudentUniverse)

One-way from

$560
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,416
Provider with most accurate pricing for Kansas City-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kansas City-Sydney Kingsford Smith flights.
Search Deals
From Missouri to Sydney Kingsford Smith
Search Deals
One-way flight from Missouri to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($179 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 April 22, 2025.

This oojo deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:59 pmSTL - SYD
2 stops25h 16mFiji Airways
Tue 9/301:15 pmSYD - STL
2 stops24h 12mFiji Airways
Deal found 4/21$1,240
This Justfly.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:30 pmSTL - SYD
2 stops50h 50mAir Canada
Tue 9/309:20 amSYD - STL
3 stops49h 37mAir Canada
Deal found 4/21$1,259
This Gurufare deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:30 pmMCI - SYD
2 stops23h 15mAir New Zealand
Wed 8/1311:50 amSYD - MCI
2 stops25h 10mAir New Zealand
Deal found 4/21$1,260
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/22:27 pmSTL - SYD
2 stops25h 38mMultiple Airlines
Wed 6/189:10 amSYD - STL
2 stops43h 32mMultiple Airlines
Deal found 4/21$1,383
This Gurufare deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:15 amSTL - SYD
2 stops37h 20mAir New Zealand
Tue 9/3010:20 amSYD - STL
1 stop21h 22mAir New Zealand
Deal found 4/21$1,447
This Gurufare deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/305:49 pmMCI - SYD
1 stop22h 06mQantas Airways
Mon 8/1812:10 pmSYD - MCI
1 stop18h 52mQantas Airways
Deal found 4/21$1,452
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/38:25 amMCI - SYD
3 stops31h 30mUnited Airlines
Mon 8/1810:20 amSYD - MCI
1 stop22h 04mUnited Airlines
Deal found 4/21$1,457
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/91:42 pmSTL - SYD
2 stops26h 13mUnited Airlines
Sun 6/2210:20 amSYD - STL
1 stop22h 40mUnited Airlines
Deal found 4/20$1,457
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/143:45 pmMCI - SYD
1 stop23h 50mDelta
Mon 7/289:25 amSYD - MCI
1 stop28h 51mDelta
Deal found 4/21$1,467
This Justfly.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:15 amSTL - SYD
1 stop33h 45mQantas Airways
Sun 12/145:50 pmSYD - STL
2 stops47h 22mQantas Airways
Deal found 4/21$1,470
This Justfly.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/85:15 pmMCI - SYD
2 stops23h 05mAir Canada
Thu 8/149:20 amSYD - MCI
2 stops26h 23mAir Canada
Deal found 4/21$1,528
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:56 pmMCI - SYD
2 stops32h 49mAlaska Airlines
Tue 8/199:40 pmSYD - MCI
2 stops32h 02mAlaska Airlines
Deal found 4/21$1,535

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2025.
Use the filters below to find and compare flights from Missouri to Sydney that are best for you.

Fly from

Missouri

Fly to

Sydney

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 10/12

8:27 am-8:45 am

2 stops32h 18m

Sydney Kingsford Smith

Sun 10/26

7:55 am-10:06 pm

2 stops30h 11m

$1,204

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Thu 9/11

7:59 pm-12:15 pm

2 stops25h 16m

Sydney Kingsford Smith

Tue 9/30

1:15 pm-10:27 pm

2 stops24h 12m

$1,240

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Thu 9/11

1:30 pm-7:20 am

2 stops50h 50m

Sydney Kingsford Smith

Tue 9/30

9:20 am-7:57 pm

3 stops49h 37m

$1,259

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 8/6

6:30 pm-8:45 am

2 stops23h 15m

Sydney Kingsford Smith

Wed 8/13

11:50 am-10:00 pm

2 stops25h 10m

$1,260

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 8/20

1:39 pm-8:45 am

3 stops28h 06m

Sydney Kingsford Smith

Wed 9/3

11:50 am-10:16 pm

2 stops25h 26m

$1,356

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 8/20

6:10 pm-6:55 am

1 stop21h 45m

Sydney Kingsford Smith

Wed 9/3

9:10 am-10:59 pm

1 stop28h 49m

$1,451

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 7/30

5:49 pm-6:55 am

1 stop22h 06m

Sydney Kingsford Smith

Mon 8/18

12:10 pm-4:02 pm

1 stop18h 52m

$1,452

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 10/12

7:00 am-8:05 am

1 stop33h 05m

Sydney Kingsford Smith

Sun 10/26

11:15 am-10:53 pm

1 stop27h 38m

$1,454

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Sun 8/3

6:05 pm-6:55 am

1 stop21h 50m

Sydney Kingsford Smith

Sun 8/17

10:20 am-5:24 pm

1 stop22h 04m

$1,457

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 6/9

1:42 pm-6:55 am

2 stops26h 13m

Sydney Kingsford Smith

Sun 6/22

10:20 am-6:00 pm

1 stop22h 40m

$1,457

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 23 results
1
2
3

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, February is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,046). Flying from Missouri to Sydney in December is currently the most expensive (average of $1,643). 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?

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 April 22, 2025.

When flying from Missouri to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

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.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated April 22, 2025.
To help decide which airline to fly from Missouri to Sydney, see what other customers have to say about Fiji Airways, Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.1
Very good
188 reviews

Entertainment

7.5

Food

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Fiji Airways
8.1
Very good
188 reviews
Fiji Airways
8.1
Very good
188 reviews

Entertainment

7.5

Food

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Alaska Airlines
8.0
Very good
9,911 reviews
Fiji Airways
8.1
Very good
188 reviews

Entertainment

7.5

Food

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Delta
8.0
Very good
7,920 reviews
Fiji Airways
8.1
Very good
188 reviews

Entertainment

7.5

Food

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Air New Zealand
8.0
Very good
469 reviews
Fiji Airways
8.1
Very good
188 reviews

Entertainment

7.5

Food

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Qantas Airways
7.5
Good
826 reviews
Fiji Airways
8.1
Very good
188 reviews

Entertainment

7.5

Food

7.5

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

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?

    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.

  • What are the most popular routes from Missouri to Sydney?

    The most popular route from Missouri to Sydney is Kansas City - Sydney Kingsford Smith. You may also consider Lambert-St Louis - 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, February is the cheapest month in which you can book a flight from Missouri to Sydney (average of $1,046). Flying from Missouri to Sydney in December is currently the most expensive (average of $1,643). 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

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Wollongong
Parramatta
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
John F Kennedy Intl to Sydney flights
Dallas/Fort Worth to Sydney flights
San Francisco to Sydney flights
Newark to Sydney flights
LaGuardia to Sydney flights
Ontario to Sydney flights
Seattle to Sydney flights
O'Hare Intl to Sydney flights
Dulles Intl to Sydney flights
Santa Ana to Sydney flights
Boston to Sydney flights
Reagan-National to Sydney flights
Hobby to Sydney flights
Baltimore to Sydney flights
Atlanta to Sydney flights
Honolulu to Sydney flights
George Bush Intcntl to Sydney flights
Midway to Sydney flights
Denver to Sydney flights
Minneapolis to Sydney flights
Detroit to Sydney flights
Burbank to Sydney flights
Miami to Sydney flights
San Jose to Sydney flights
Oakland to Sydney flights
Orlando to Sydney flights
Philadelphia to Sydney flights
Sky Harbor Intl to Sydney flights
Tampa to Sydney flights
Charlotte to Sydney flights
Salt Lake City to Sydney flights
Raleigh to Sydney flights
Portland to Sydney flights
San Diego to Sydney flights
Nashville to Sydney flights
Cincinnati to Sydney flights
Austin to Sydney flights
Fort Lauderdale to Sydney flights
Indianapolis to Sydney flights
Love Field to Sydney flights
Las Vegas to Sydney flights
Kansas City to Sydney flights
Seattle to Coolangatta flights
Cleveland to Sydney flights
Columbus to Sydney flights
Charleston to Sydney flights
New Orleans to Sydney flights
Pittsburgh to Sydney flights
St. Louis to Sydney flights

Top 6 airlines flying from Missouri to Sydney

Discover the top 6 airlines that operate flights from Missouri to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$848Average$1,463FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$962Average$1,329FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,173Average$1,855FlexibilityNo cancel feeOn-time78%
Qantas AirwaysCheapest$1,185Average$1,755FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,193Average$1,767FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,211Average$1,455FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.