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Cheap flights from Missouri to Sydney from $712

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
5 Apr — 12 Apr1
1 adult

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 31 March 2025.

Round-trip from

$1,923

One-way from

$712

Popular in

December

Cheapest in

November

Average price

$2,312
Fiji Airways
  • Fiji Airways
  • 3/6-10/6
  • 4 total stops
  • 48h 10m total
  • Missouri to Sydney
Search Deals
26/8
  • 26/8
  • 2 total stops
  • 32h 03m total
  • Missouri to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($311 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($74 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 31 March 2025.

Sat 1/1114:55STL - SYD
2 stops32h 40mMultiple Airlines
Sat 15/1106:00SYD - STL
2 stops33h 29mMultiple Airlines
Deal found 31/3$1,846
Tue 3/619:19STL - SYD
2 stops25h 26mFiji Airways
Tue 10/613:15SYD - STL
2 stops22h 44mFiji Airways
Deal found 30/3$1,923
Tue 3/613:30STL - SYD
2 stops50h 50mAir Canada
Wed 11/609:20SYD - STL
2 stops25h 38mAir Canada
Deal found 30/3$1,975
Wed 3/909:17MCI - SYD
2 stops31h 03mAir Canada
Wed 17/909:20SYD - MCI
2 stops29h 08mAir Canada
Deal found 30/3$2,142
Wed 28/514:19STL - SYD
2 stops25h 46mAmerican Airlines
Mon 16/609:10SYD - STL
1 stop28h 49mAmerican Airlines
Deal found 30/3$2,299
Tue 3/616:52STL - SYD
1 stop23h 03mQantas Airways
Wed 11/609:10SYD - STL
1 stop28h 49mQantas Airways
Deal found 30/3$2,306
Wed 3/916:26MCI - SYD
1 stop23h 29mQantas Airways
Wed 17/912:10SYD - MCI
1 stop23h 06mQantas Airways
Deal found 30/3$2,307
Mon 2/619:10STL - SYD
1 stop20h 45mUnited Airlines
Mon 9/610:20SYD - STL
1 stop22h 40mUnited Airlines
Deal found 30/3$2,315
Mon 23/618:12MCI - SYD
1 stop21h 43mUnited Airlines
Mon 30/609:30SYD - MCI
2 stops29h 01mUnited Airlines
Deal found 30/3$2,323
Tue 17/615:42MCI - SYD
1 stop23h 53mDelta
Tue 8/709:25SYD - MCI
1 stop20h 24mDelta
Deal found 30/3$2,330
Wed 7/507:00MCI - SYD
2 stops45h 45mAlaska Airlines
Fri 23/521:40SYD - MCI
2 stops41h 19mAlaska Airlines
Deal found 30/3$2,357
Thu 29/510:15MCI - SYD
3 stops35h 00mMultiple Airlines
Mon 2/619:45SYD - MCI
3 stops39h 27mMultiple Airlines
Deal found 31/3$2,366

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 31 March 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

Tue 3/6

19:19-11:45

2 stops25h 26m

Sydney Kingsford Smith

Tue 10/6

13:15-20:59

2 stops22h 44m

$1,923

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 3/6

13:30-07:20

2 stops50h 50m

Sydney Kingsford Smith

Wed 11/6

09:20-19:58

2 stops25h 38m

$1,975

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 3/9

09:17-07:20

2 stops31h 03m

Sydney Kingsford Smith

Wed 17/9

09:20-23:28

2 stops29h 08m

$2,142

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 28/5

14:19-07:05

2 stops25h 46m

Sydney Kingsford Smith

Mon 16/6

09:10-22:59

1 stop28h 49m

$2,299

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 3/6

16:52-06:55

1 stop23h 03m

Sydney Kingsford Smith

Wed 11/6

09:10-22:59

1 stop28h 49m

$2,306

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 3/9

16:26-06:55

1 stop23h 29m

Sydney Kingsford Smith

Wed 17/9

12:10-20:16

1 stop23h 06m

$2,307

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 2/6

19:10-06:55

1 stop20h 45m

Sydney Kingsford Smith

Wed 11/6

10:20-18:00

1 stop22h 40m

$2,315

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Mon 23/6

14:56-06:55

2 stops24h 59m

Sydney Kingsford Smith

Tue 1/7

09:30-23:31

2 stops29h 01m

$2,323

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Tue 17/6

15:42-06:35

1 stop23h 53m

Sydney Kingsford Smith

Tue 8/7

09:25-14:49

1 stop20h 24m

$2,330

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

Wed 7/5

07:00-19:45

2 stops45h 45m

Sydney Kingsford Smith

Fri 23/5

21:40-23:59

2 stops41h 19m

$2,357

Flights are sorted by cheapest return flights first.

Deals found on 31/3

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 return 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 $129). Flying from Missouri to Sydney in October is currently the most expensive (average of $171). 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 31 March 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 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 31 March 2025.
Peruse reviews from past customers who have flown with ANA, Fiji Airways and Delta from Missouri to Sydney to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very Good
831 reviews
Check prices

Overall

8.3

Boarding

8.5

Food

7.6

Comfort

8.2

Crew

8.7

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
Check prices

Overall

8.3

Boarding

8.5

Food

7.6

Comfort

8.2

Crew

8.7

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
Check prices

Overall

8.3

Boarding

8.5

Food

7.6

Comfort

8.2

Crew

8.7

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
Check prices

Overall

8.3

Boarding

8.5

Food

7.6

Comfort

8.2

Crew

8.7

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
Check prices

Overall

8.3

Boarding

8.5

Food

7.6

Comfort

8.2

Crew

8.7

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
Check prices

Overall

8.3

Boarding

8.5

Food

7.6

Comfort

8.2

Crew

8.7

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?

    If you book a flight to Sydney from Missouri, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney.

  • What are the cheapest airlines to fly from Missouri to Sydney one-way?

    One-way options have recently been found by users for as low as $1,022 on Fiji Airways. Other airlines that offer cheap prices include Air Canada from $1,205 and ANA from $1,301 one-way.

  • 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 holiday 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 $129). Flying from Missouri to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Cronulla
Randwick
Terrigal
Lithgow
Bondi Beach
Leura
Swansea

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Fly with Cheapflights

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How does Cheapflights help users find flights from Missouri to Sydney?

Deals for Missouri to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Missouri to Sydney?

Cheapflights simply makes it quick and affordable to book flights from Missouri to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Missouri to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Missouri to Sydney flexibly with Cheapflights today.

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Of course! You can now track prices for flights from Missouri to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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