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$448+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
abr. 5 — abr. 121
sáb. 4/5
sáb. 4/12
1 adult, Economy
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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 marzo 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,209
(Gurufare)

One-way from

$448
(Jetabroad)

Popular in

December

Cheapest in

November

Average price

$1,441
Provider with most accurate pricing for Kansas City-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Kansas City-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
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Highest demand for flights based on searches. 9% potential increase in price ($160 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 marzo 31, 2025.

This Gurufare deal was found by Cheapflights users on 3/30. 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.
mar. 6/37:19 pmSTL - SYD
2 stops25h 26mFiji Airways
mar. 6/101:15 pmSYD - STL
2 stops22h 44mFiji Airways
Deal found 3/30$1,209
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/31:30 pmSTL - SYD
2 stops50h 50mAir Canada
mié. 6/119:20 amSYD - STL
2 stops25h 38mAir Canada
Deal found 3/30$1,242
This Fiji Airways deal was found by Cheapflights users on 3/30. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/311:39 amSTL - SYD
2 stops33h 36mMultiple Airlines
mar. 4/81:15 pmSYD - STL
2 stops24h 13mMultiple Airlines
Deal found 3/30$1,306
This Justfly.com deal was found by Cheapflights users on 3/30. 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.
mié. 9/39:17 amMCI - SYD
2 stops31h 03mAir Canada
mié. 9/179:20 amSYD - MCI
2 stops29h 08mAir Canada
Deal found 3/30$1,347
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/281:38 pmSTL - SYD
2 stops26h 27mAmerican Airlines
lun. 6/169:10 amSYD - STL
1 stop28h 49mAmerican Airlines
Deal found 3/31$1,446
This Gurufare deal was found by Cheapflights users on 3/30. 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.
mar. 6/34:52 pmSTL - SYD
1 stop23h 03mQantas Airways
mié. 6/119:10 amSYD - STL
1 stop28h 49mQantas Airways
Deal found 3/30$1,450
This Gurufare deal was found by Cheapflights users on 3/30. 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.
mié. 9/34:26 pmMCI - SYD
1 stop23h 29mQantas Airways
mié. 9/1712:10 pmSYD - MCI
1 stop23h 06mQantas Airways
Deal found 3/30$1,451
This United Airlines deal was found by Cheapflights users on 3/30. 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.
lun. 6/27:10 pmSTL - SYD
1 stop20h 45mUnited Airlines
lun. 6/910:20 amSYD - STL
1 stop22h 40mUnited Airlines
Deal found 3/30$1,456
This United Airlines deal was found by Cheapflights users on 3/30. 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.
lun. 6/235:20 pmMCI - SYD
2 stops22h 40mUnited Airlines
mié. 7/29:30 amSYD - MCI
2 stops28h 44mUnited Airlines
Deal found 3/30$1,461
This Delta deal was found by Cheapflights users on 3/30. 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.
mar. 6/173:42 pmMCI - SYD
1 stop23h 53mDelta
mar. 7/89:25 amSYD - MCI
1 stop20h 24mDelta
Deal found 3/30$1,465
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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.
mié. 5/77:00 amMCI - SYD
2 stops45h 45mAlaska Airlines
vie. 5/239:40 pmSYD - MCI
2 stops41h 19mAlaska Airlines
Deal found 3/30$1,482
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/2910:15 amMCI - SYD
3 stops35h 00mMultiple Airlines
lun. 6/27:45 pmSYD - MCI
3 stops39h 27mMultiple Airlines
Deal found 3/31$1,488

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 marzo 31, 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

mar. 6/3

7:19 pm-11:45 am

2 stops25h 26m

Sydney Kingsford Smith

mar. 6/10

1:15 pm-8:59 pm

2 stops22h 44m

$1,209

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

mar. 6/3

1:30 pm-7:20 am

2 stops50h 50m

Sydney Kingsford Smith

mié. 6/11

9:20 am-7:58 pm

2 stops25h 38m

$1,242

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

mié. 9/3

9:17 am-7:20 am

2 stops31h 03m

Sydney Kingsford Smith

mié. 9/17

9:20 am-11:28 pm

2 stops29h 08m

$1,347

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

mié. 5/28

1:38 pm-7:05 am

2 stops26h 27m

Sydney Kingsford Smith

lun. 6/16

9:10 am-10:59 pm

1 stop28h 49m

$1,446

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

mar. 6/3

4:52 pm-6:55 am

1 stop23h 03m

Sydney Kingsford Smith

mié. 6/11

9:10 am-10:59 pm

1 stop28h 49m

$1,450

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

mié. 9/3

4:26 pm-6:55 am

1 stop23h 29m

Sydney Kingsford Smith

mié. 9/17

12:10 pm-8:16 pm

1 stop23h 06m

$1,451

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

lun. 6/2

7:10 pm-6:55 am

1 stop20h 45m

Sydney Kingsford Smith

lun. 6/9

10:20 am-6:00 pm

1 stop22h 40m

$1,456

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

lun. 6/23

6:12 pm-6:55 am

1 stop21h 43m

Sydney Kingsford Smith

mar. 7/1

9:30 am-11:31 pm

2 stops29h 01m

$1,461

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

mar. 6/17

3:42 pm-6:35 am

1 stop23h 53m

Sydney Kingsford Smith

dom. 7/6

9:25 am-2:45 pm

1 stop20h 20m

$1,465

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

mié. 5/7

7:00 am-7:45 pm

2 stops45h 45m

Sydney Kingsford Smith

vie. 5/23

9:40 pm-11:59 pm

2 stops41h 19m

$1,482

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 33 results
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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 marzo 31, 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 marzo 31, 2025.
To help decide which airline to fly from Missouri to Sydney, see what other customers have to say about ANA, Fiji Airways and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very good
831 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Comfort

8.2

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
ANA
8.3
Very good
831 reviews
ANA
8.3
Very good
831 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Comfort

8.2

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Fiji Airways
8.0
Very good
180 reviews
ANA
8.3
Very good
831 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Comfort

8.2

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Delta
8.0
Very good
7,899 reviews
ANA
8.3
Very good
831 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Comfort

8.2

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Alaska Airlines
8.0
Very good
9,818 reviews
ANA
8.3
Very good
831 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Comfort

8.2

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Air New Zealand
8.0
Very good
459 reviews
ANA
8.3
Very good
831 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Comfort

8.2

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

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 cheapest airlines to fly from Missouri to Sydney one-way?

    To fly one-way, consider booking your trip with Fiji Airways, which is currently one of the cheapest options available, starting at $643. Air Canada flights start at $758 while deals on ANA start at $818 one-way.

  • 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

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Alternative routes for Missouri to Sydney

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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 marzo 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$848Average$1,470FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$962Average$1,337FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,173Average$1,873FlexibilityNo cancel feeOn-time78%
DeltaCheapest$1,211Average$1,489FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,240Average$1,777FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,281Average$1,861FlexibilityNo cancel feeOn-time74%
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