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Cheap flights from Missouri to Sydney from $767

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
9 juil. — 16 juil.1
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 4 juillet 2025.

Round-trip from

$1,347

One-way from

$767

Popular in

December

Cheapest in

August

Average price

$2,118
15/8-22/8
  • 15/8-22/8
  • 2 total stops
  • 45h 00m total
  • Missouri to Sydney
Search Deals
5/8
  • 5/8
  • 1 total stop
  • 34h 30m total
  • Missouri to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($211 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($79 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 4 juillet 2025.

ven. 15/814:56MCI - SYD
1 stop25h 09mMultiple Airlines
ven. 22/809:10SYD - MCI
1 stop19h 51mMultiple Airlines
Deal found 1/7$1,347
mer. 3/918:26MCI - SYD
1 stop21h 29mQantas Airways
mer. 17/912:10SYD - MCI
1 stop21h 55mQantas Airways
Deal found 1/7$1,550
mer. 27/806:00MCI - SYD
2 stops34h 20mAir Canada
sam. 6/909:20SYD - MCI
2 stops26h 22mAir Canada
Deal found 2/7$1,582
jeu. 25/914:53MCI - SYD
2 stops25h 12mAmerican Airlines
jeu. 16/1010:10SYD - MCI
2 stops23h 07mAmerican Airlines
Deal found 1/7$1,617
jeu. 25/918:00MCI - SYD
1 stop21h 55mUnited Airlines
jeu. 16/1011:20SYD - MCI
1 stop21h 55mUnited Airlines
Deal found 1/7$1,636
ven. 28/1106:15STL - SYD
2 stops34h 05mQantas Airways
dim. 14/1214:20SYD - STL
1 stop18h 47mQantas Airways
Deal found 3/7$1,716
dim. 14/913:30STL - SYD
2 stops26h 50mMultiple Airlines
sam. 27/909:20SYD - STL
2 stops22h 12mMultiple Airlines
Deal found 2/7$1,744
jeu. 21/809:15STL - SYD
2 stops31h 05mAir Canada
mer. 3/909:20SYD - STL
2 stops44h 58mAir Canada
Deal found 3/7$1,750
ven. 1/817:27STL - SYD
1 stop22h 28mAmerican Airlines
jeu. 14/809:10SYD - STL
2 stops22h 36mAmerican Airlines
Deal found 2/7$1,768
dim. 14/917:49STL - SYD
1 stop22h 06mUnited Airlines
sam. 27/910:20SYD - STL
1 stop21h 25mUnited Airlines
Deal found 2/7$1,797
ven. 31/1015:45MCI - SYD
1 stop23h 45mDelta
jeu. 13/1110:40SYD - MCI
1 stop21h 09mDelta
Deal found 1/7$1,867
sam. 16/817:52STL - SYD
2 stops26h 53mFiji Airways
sam. 23/813:45SYD - STL
2 stops21h 37mFiji Airways
Deal found 2/7$1,984

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 4 juillet 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

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

ven. 15/8

14:56-07:05

1 stop25h 09m

Sydney Kingsford Smith

ven. 22/8

09:10-14:01

1 stop19h 51m

$1,347

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

mer. 3/9

18:26-06:55

1 stop21h 29m

Sydney Kingsford Smith

mer. 17/9

12:10-19:05

1 stop21h 55m

$1,550

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

mer. 27/8

06:00-07:20

2 stops34h 20m

Sydney Kingsford Smith

sam. 6/9

09:20-20:42

2 stops26h 22m

$1,582

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

jeu. 25/9

14:53-07:05

2 stops25h 12m

Sydney Kingsford Smith

jeu. 16/10

10:10-17:17

2 stops23h 07m

$1,617

Kansas CitySydney

MCI - SYD

MCISYD

Kansas City

jeu. 25/9

18:00-06:55

1 stop21h 55m

Sydney Kingsford Smith

jeu. 16/10

11:20-17:15

1 stop21h 55m

$1,636

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

ven. 28/11

06:15-09:20

2 stops34h 05m

Sydney Kingsford Smith

dim. 14/12

14:20-16:07

1 stop18h 47m

$1,716

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

dim. 14/9

13:30-07:20

2 stops26h 50m

Sydney Kingsford Smith

sam. 27/9

09:20-16:32

2 stops22h 12m

$1,744

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

jeu. 21/8

09:15-07:20

2 stops31h 05m

Sydney Kingsford Smith

mer. 3/9

09:20-15:18

2 stops44h 58m

$1,750

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

ven. 1/8

17:27-06:55

1 stop22h 28m

Sydney Kingsford Smith

jeu. 14/8

09:10-16:46

2 stops22h 36m

$1,768

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

dim. 14/9

17:49-06:55

1 stop22h 06m

Sydney Kingsford Smith

sam. 27/9

10:20-16:45

1 stop21h 25m

$1,797

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 27 results
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2
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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 4 juillet 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.

How much does it cost for a return flight from Missouri to Sydney?

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 4 juillet 2025.
See what other customers who have flown with ANA, Alaska Airlines, andFiji Airways from Missouri to Sydney have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very Good
886 reviews
Check prices

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Overall

8.4

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very Good
886 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Overall

8.4

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Alaska Airlines
8.0
Very Good
10,000 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Overall

8.4

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Fiji Airways
8.0
Very Good
202 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Overall

8.4

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very Good
7,970 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Overall

8.4

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Air New Zealand
8.0
Very Good
485 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Overall

8.4

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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 $829 on Air Canada. Other airlines that offer cheap prices include United Airlines from $866 and American Airlines from $1,564 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
Randwick
Cronulla
Terrigal
Lithgow
Bondi Beach
Leura

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