$723+ Cheap flights from Sydney (SYD) to St. Louis (STL)
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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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Find cheap flights from Sydney to St. Louis 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
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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 Sydney to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Sydney to St. LouisExplore the most affordable flight options available from Sydney to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
Explore the most affordable flight options available from Sydney to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:15 am -
1 stop29h 30m
Tue 12/18:29 am -
1 stop29h 26m
Deal found 8/21![American Airlines logo]()
$982
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:10 am -
2 stops43h 34m
Sat 10/243:20 pm -
1 stop23h 35m
Deal found 8/21![American Airlines logo]()
$1,078
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Tue 10/1310:10 am -
1 stop29h 36m
Thu 11/512:58 pm -
1 stop24h 57m
Deal found 8/25![American Airlines logo]()
$1,158
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Thu 10/81:00 pm -
1 stop21h 20m
Thu 10/156:04 am -
2 stops36h 26m
Deal found 8/25![American Airlines logo]()
$1,184
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Tue 11/1711:50 am -
2 stops22h 07m
Tue 12/11:15 pm -
3 stops26h 50m
Deal found 8/21![United Airlines logo]()
$1,252
Best flights from Sydney to St. LouisDiscover carefully curated flight deals from Sydney to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from Sydney to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:10 am -
2 stops43h 34m
Sat 10/243:20 pm -
1 stop23h 35m
Deal found 8/21![American Airlines logo]()
$1,078
This SmartFares deal was found by Cheapflights users on 8/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:15 am -
2 stops29h 01m
Fri 10/25:47 pm -
2 stops46h 03m
Deal found 8/25![Delta logo]()
$1,265
This Qantas Airways deal was found by Cheapflights users on 8/24. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:25 am -
3 stops28h 18m
Thu 10/152:27 pm -
2 stops25h 38m
Deal found 8/24![Multiple Airlines logo]()
$1,653
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:10 am -
1 stop29h 20m
Sun 10/116:04 am -
2 stops36h 26m
Deal found 8/21![Qantas Airways logo]()
$1,702
This Air Canada deal was found by Cheapflights users on 8/25. 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.
Wed 10/2110:20 am -
2 stops22h 17m
Sat 10/241:36 pm -
2 stops26h 59m
Deal found 8/25![Air Canada logo]()
$1,810
This Turkish Airlines deal was found by Cheapflights users on 8/25. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:05 pm -
3 stops39h 16m
Sat 10/248:00 am -
3 stops67h 25m
Deal found 8/25![Turkish Airlines logo]()
$1,906
This Qantas Airways deal was found by Cheapflights users on 8/21. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:05 am -
3 stops26h 14m
Tue 12/12:54 pm -
3 stops27h 51m
Deal found 8/21![Multiple Airlines logo]()
$1,827
This Air New Zealand deal was found by Cheapflights users on 8/25. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:55 am -
3 stops27h 49m
Thu 11/57:30 am -
3 stops34h 05m
Deal found 8/25![Multiple Airlines logo]()
$1,909
Last-minute flights from Sydney to St. LouisDiscover last-minute flight deals from Sydney to St. Louis. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from Sydney to St. Louis. Data last updated August 26, 2026 and is based on user searches.
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:45 pm -
2 stops64h 12m
Sat 10/36:20 am -
1 stop33h 45m
Deal found 8/25![Multiple Airlines logo]()
$1,940
This SmartFares deal was found by Cheapflights users on 8/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am -
2 stops25h 43m
Sat 10/35:00 pm -
2 stops46h 50m
Deal found 8/25![Delta logo]()
$2,056
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:45 pm -
2 stops64h 12m
Fri 10/26:30 am -
1 stop33h 35m
Deal found 8/25![Multiple Airlines logo]()
$2,073
This Aunt Betty deal was found by Cheapflights users on 8/25. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:45 pm -
2 stops32h 36m
Fri 10/23:19 pm -
2 stops35h 31m
Deal found 8/25![Multiple Airlines logo]()
$1,970
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:45 pm -
2 stops42h 14m
Sat 10/36:20 am -
1 stop33h 45m
Deal found 8/25![Multiple Airlines logo]()
$1,831
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:45 pm -
2 stops42h 14m
Fri 10/26:30 am -
1 stop33h 35m
Deal found 8/25![Multiple Airlines logo]()
$1,964
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:45 pm -
2 stops60h 53m
Sat 10/36:20 am -
1 stop33h 45m
Deal found 8/25![Multiple Airlines logo]()
$1,642
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:45 pm -
2 stops60h 53m
Fri 10/26:30 am -
1 stop33h 35m
Deal found 8/25![Multiple Airlines logo]()
$1,858
This SmartFares deal was found by Cheapflights users on 8/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:15 am -
2 stops29h 01m
Sat 10/35:00 pm -
2 stops46h 50m
Deal found 8/25![Delta logo]()
$2,005
This SmartFares deal was found by Cheapflights users on 8/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:15 am -
2 stops29h 01m
Fri 10/25:47 pm -
2 stops46h 03m
Deal found 8/25![Delta logo]()
$1,265
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:10 am -
1 stop29h 20m
Fri 10/26:30 am -
1 stop33h 35m
Deal found 8/25![Qantas Airways logo]()
$1,623
This Bravofly deal was found by Cheapflights users on 8/25. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:50 pm -
2 stops43h 17m
Fri 10/26:30 am -
1 stop33h 35m
Deal found 8/25![Multiple Airlines logo]()
$1,922
One-way flights from Sydney to St. LouisSearch for one-way flight options from Sydney to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from Sydney to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Mon 11/211:10 am -
1 stop26h 32m
Deal found 8/24![American Airlines logo]()
$723
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Fri 10/3011:10 am -
1 stop28h 49m
Deal found 8/24![American Airlines logo]()
$783
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:40 pm -
3 stops37h 34m
Deal found 8/24![Multiple Airlines logo]()
$821
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:55 am -
3 stops47h 30m
Deal found 8/24![Multiple Airlines logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:55 am -
3 stops57h 04m
Deal found 8/23![Multiple Airlines logo]()
$1,323
This Delta deal was found by Cheapflights users on 8/23. 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.
Sun 11/110:40 am -
2 stops27h 29m
Deal found 8/23![Delta logo]()
$1,661
This AranGrant deal was found by Cheapflights users on 8/23. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:20 am -
1 stop26h 22m
Deal found 8/23![Qantas Airways logo]()
$2,004
Find flight deals from Sydney to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $982 (American Airlines) |
One-way from | $723 (American Airlines) |
Popular in | April |
Cheapest in | September |
Average price | $1,064 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sydney to St. Louis 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 7,457,451 searches. Data last updated August 26, 2026.
Use the filters below to find and compare flights from Sydney to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Wed 10/21
10:10 am-1:44 pm
2 stops43h 34m
Lambert-St Louis
Sat 10/24
3:20 pm-6:55 am
1 stop23h 35m
$1,078
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Tue 9/22
9:15 am-11:16 pm
2 stops29h 01m
Lambert-St Louis
Fri 10/2
5:47 pm-6:50 am
2 stops46h 03m
$1,265
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Thu 10/8
6:25 am-6:43 pm
3 stops28h 18m
Lambert-St Louis
Thu 10/15
2:27 pm-8:05 am
2 stops25h 38m
$1,653
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Sun 10/4
10:10 am-11:30 pm
1 stop29h 20m
Lambert-St Louis
Sun 10/11
6:04 am-10:30 am
2 stops36h 26m
$1,702
Quickest round-trip
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Wed 10/21
10:20 am-4:37 pm
2 stops22h 17m
Lambert-St Louis
Sat 10/24
1:36 pm-8:35 am
2 stops26h 59m
$1,810
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Tue 11/17
11:05 am-8:19 pm
3 stops26h 14m
Lambert-St Louis
Tue 12/1
2:54 pm-11:45 am
3 stops27h 51m
$1,827
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Wed 10/21
10:05 pm-9:21 pm
3 stops39h 16m
Lambert-St Louis
Sat 10/24
8:00 am-7:25 pm
3 stops67h 25m
$1,906
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Tue 10/13
11:55 am-11:44 pm
3 stops27h 49m
Lambert-St Louis
Thu 11/5
7:30 am-10:35 am
3 stops34h 05m
$1,909
Cheapest one-way
Quickest one-way
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Mon 11/2
11:10 am-6:16 pm
2 stops24h 06m
$728
SydneySt. Louis
SYD Sydney Kingsford Smith - STL Lambert-St Louis
SYDSTL
Sydney Kingsford Smith
Fri 10/30
11:10 am-7:48 pm
2 stops24h 38m
$788
Showing 1-10 of 13 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Sydney-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sydney-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sydney to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Sydney with our price prediction graph.
SYD-STL
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 Sydney to St. Louis
What is the cheapest month to book a flight from Sydney to St. Louis?
Currently, September is the cheapest month in which you can book a flight from Sydney to St. Louis (average of $1,039). Flying from Sydney to St. Louis in April is currently the most expensive (average of $1,627). 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.
How much does it cost to fly round-trip from Sydney to St. Louis?
Airfare is typical for this route at the moment.
Sydney to St. Louis flights typically cost between $960 and $1,208 in November.The cheapest round-trip price found within the last 5 days was $982 on American Airlines (Nov 17-Dec 1).
Related info for your journey
Find useful and relevant information for your journey from Sydney to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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