$549+ Cheap flights from St. Louis (STL) 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Jun 4 — Jun 111
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis 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 St. Louis to Sydney
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Best
Last-minute
One-way
Cheapest flights from St. Louis to SydneyExplore the most affordable flight options available from St. Louis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 5, 2026.
Explore the most affordable flight options available from St. Louis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 5, 2026.
This oojo deal was found by Cheapflights users on 5/3. 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.
Sat 10/246:30 am
STL
- SYD
1 stop34h 30m
Qantas Airways
Sat 11/75:50 pm
SYD
- STL
2 stops39h 50m
Qantas Airways
Deal found 5/3![Qantas Airways logo]()
$1,012
This oojo deal was found by Cheapflights users on 5/2. 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.
Fri 11/206:13 pm
STL
- SYD
2 stops33h 37m
Qantas Airways
Sun 11/2911:15 am
SYD
- STL
1 stop29h 27m
Qantas Airways
Deal found 5/2![Qantas Airways logo]()
$1,162
This oojo deal was found by Cheapflights users on 5/4. 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.
Wed 10/216:30 am
STL
- SYD
1 stop33h 35m
Qantas Airways
Mon 10/265:50 pm
SYD
- STL
2 stops36h 55m
Qantas Airways
Deal found 5/4![Qantas Airways logo]()
$1,163
This Qantas Airways deal was found by Cheapflights users on 4/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:24 pm
STL
- SYD
1 stop20h 31m
Qantas Airways
Sun 6/2112:00 pm
SYD
- STL
1 stop19h 33m
Qantas Airways
Deal found 4/30![Qantas Airways logo]()
$1,301
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/47:06 pm
STL
- SYD
1 stop20h 49m
United Airlines
Mon 5/1810:20 am
SYD
- STL
1 stop23h 02m
United Airlines
Deal found 5/1![United Airlines logo]()
$1,303
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/47:06 pm
STL
- SYD
1 stop20h 49m
United Airlines
Mon 5/1110:20 am
SYD
- STL
1 stop23h 02m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,304
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/144:48 pm
STL
- SYD
2 stops23h 12m
United Airlines
Sun 6/219:30 am
SYD
- STL
2 stops26h 51m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,309
Best flights from St. Louis to SydneyDiscover carefully curated flight deals from St. Louis to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 5, 2026.
Discover carefully curated flight deals from St. Louis to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 5, 2026.
This United Airlines deal was found by Cheapflights users on 5/2. 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 5/261:13 pm
STL
- SYD
2 stops26h 47m
United Airlines
Wed 6/1010:20 am
SYD
- STL
2 stops21h 13m
United Airlines
Deal found 5/2![United Airlines logo]()
$1,308
This Delta deal was found by Cheapflights users on 5/2. 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 10/48:50 am
STL
- SYD
2 stops31h 00m
Delta
Sun 10/1810:15 am
SYD
- STL
2 stops26h 22m
Delta
Deal found 5/2![Delta logo]()
$1,465
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
STL
- SYD
1 stop34h 05m
Qantas Airways
Mon 9/149:10 am
SYD
- STL
1 stop28h 52m
Qantas Airways
Deal found 4/30![Qantas Airways logo]()
$1,470
This United Airlines deal was found by Cheapflights users on 5/4. 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 6/82:57 pm
STL
- SYD
2 stops25h 03m
United Airlines
Tue 6/239:30 am
SYD
- STL
2 stops29h 27m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,308
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 6/141:38 pm
STL
- SYD
2 stops26h 22m
United Airlines
Sun 6/2110:20 am
SYD
- STL
2 stops40h 51m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,325
This Delta deal was found by Cheapflights users on 5/3. 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.
Tue 10/133:42 pm
STL
- SYD
2 stops24h 08m
Delta
Wed 11/1810:40 am
SYD
- STL
2 stops29h 59m
Delta
Deal found 5/3![Delta logo]()
$1,465
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Thu 5/287:23 pm
STL
- SYD
1 stop20h 32m
United Airlines
Thu 6/410:20 am
SYD
- STL
1 stop22h 57m
United Airlines
Deal found 5/1![United Airlines logo]()
$1,439
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 6/103:22 pm
STL
- SYD
2 stops24h 38m
United Airlines
Sat 6/2710:20 am
SYD
- STL
2 stops25h 23m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,536
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sat 6/133:22 pm
STL
- SYD
2 stops24h 38m
United Airlines
Mon 6/229:30 am
SYD
- STL
2 stops29h 27m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,576
Last-minute flights from St. Louis to SydneyDiscover last-minute flight deals from St. Louis to Sydney. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Sydney. Data last updated May 5, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/47:06 pm
STL
- SYD
1 stop20h 49m
United Airlines
Mon 5/1810:20 am
SYD
- STL
1 stop23h 02m
United Airlines
Deal found 5/1![United Airlines logo]()
$1,303
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/47:06 pm
STL
- SYD
1 stop20h 49m
United Airlines
Mon 5/1110:20 am
SYD
- STL
1 stop23h 02m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,304
This FlightHub deal was found by Cheapflights users on 5/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:11 pm
STL
- SYD
1 stop21h 44m
Qantas Airways
Sat 5/2312:00 pm
SYD
- STL
1 stop19h 41m
Qantas Airways
Deal found 5/4![Qantas Airways logo]()
$1,366
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/54:06 pm
STL
- SYD
2 stops23h 49m
United Airlines
Sat 5/2310:20 am
SYD
- STL
1 stop22h 57m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,372
This Qantas Airways deal was found by Cheapflights users on 5/4. 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.
Mon 6/86:35 am
STL
- SYD
1 stop33h 30m
Qantas Airways
Sun 6/219:10 am
SYD
- STL
1 stop29h 46m
Qantas Airways
Deal found 5/4![Qantas Airways logo]()
$1,375
This Qantas Airways deal was found by Cheapflights users on 4/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:24 pm
STL
- SYD
1 stop20h 31m
Qantas Airways
Sun 6/2112:00 pm
SYD
- STL
1 stop19h 33m
Qantas Airways
Deal found 4/30![Qantas Airways logo]()
$1,301
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/147:23 pm
STL
- SYD
1 stop20h 32m
United Airlines
Sun 6/219:30 am
SYD
- STL
2 stops26h 51m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,309
One-way flights from St. Louis to SydneySearch for one-way flight options from St. Louis to Sydney. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
Search for one-way flight options from St. Louis to Sydney. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/159:18 pm
STL
- SYD
3 stops57h 52m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Tue 5/126:51 pm
STL
- SYD
3 stops49h 59m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Thu 6/43:30 pm
STL
- SYD
3 stops53h 20m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$598
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Tue 6/168:08 pm
STL
- SYD
2 stops44h 22m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$643
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/119:18 pm
STL
- SYD
2 stops43h 12m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$645
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Tue 6/28:08 pm
STL
- SYD
2 stops44h 22m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$649
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/19:21 pm
STL
- SYD
2 stops43h 09m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$655
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Thu 5/143:33 pm
STL
- SYD
2 stops48h 57m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$700
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Wed 6/38:08 pm
STL
- SYD
3 stops45h 32m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$721
Find flight deals from St. Louis to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sydney (SYD). 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 May 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,012 (oojo) |
One-way from | $549 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $1,434 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 May 5, 2026.
Use the filters below to find and compare flights from St. Louis to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Tue 5/26
1:13 pm-7:00 am
2 stops26h 47m
Sydney Kingsford Smith
Wed 6/10
10:20 am-4:33 pm
2 stops21h 13m
$1,308
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 6/8
2:57 pm-7:00 am
2 stops25h 03m
Sydney Kingsford Smith
Tue 6/23
9:30 am-11:57 pm
2 stops29h 27m
$1,308
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 6/14
1:38 pm-7:00 am
2 stops26h 22m
Sydney Kingsford Smith
Sun 6/21
10:20 am-12:11 pm
2 stops40h 51m
$1,325
Quickest round-trip
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Thu 5/28
7:23 pm-6:55 am
1 stop20h 32m
Sydney Kingsford Smith
Thu 6/4
10:20 am-6:17 pm
1 stop22h 57m
$1,439
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 10/4
8:50 am-7:50 am
2 stops31h 00m
Sydney Kingsford Smith
Sun 10/18
10:15 am-8:37 pm
2 stops26h 22m
$1,465
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Tue 10/13
3:42 pm-7:50 am
2 stops24h 08m
Sydney Kingsford Smith
Wed 11/18
10:40 am-11:39 pm
2 stops29h 59m
$1,465
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 9/7
6:00 am-7:05 am
1 stop34h 05m
Sydney Kingsford Smith
Mon 9/14
9:10 am-11:02 pm
1 stop28h 52m
$1,470
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Wed 6/10
3:22 pm-7:00 am
2 stops24h 38m
Sydney Kingsford Smith
Sat 6/27
10:20 am-8:43 pm
2 stops25h 23m
$1,536
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 6/13
3:22 pm-7:00 am
2 stops24h 38m
Sydney Kingsford Smith
Mon 6/22
9:30 am-11:57 pm
2 stops29h 27m
$1,576
Cheapest one-way
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Thu 6/4
3:30 pm-11:50 am
3 stops53h 20m
$598
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Sydney
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sydney in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on St. Louis-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Sydney flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Sydney 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 St. Louis-Sydney 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 St. Louis to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from St. Louis with our price prediction graph.
STL-SYD
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 St. Louis to Sydney
What is the cheapest month to book a flight from St. Louis to Sydney?
Currently, March is the cheapest month in which you can book a flight from St. Louis to Sydney (average of $1,233). Flying from St. Louis to Sydney in December is currently the most expensive (average of $1,665). 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 St. Louis 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 May 5, 2026.
Get a feel of what it's like to fly with Fiji Airways,Qantas Airways, andUnited Airlines from St. Louis to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.5
Entertainment
7.5
Overall
8.1
Comfort
8.1
Crew
8.6
Boarding
8.2
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Food
7.5
Entertainment
7.5
Overall
8.1
Comfort
8.1
Crew
8.6
Boarding
8.2
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Food
7.5
Entertainment
7.5
Overall
8.1
Comfort
8.1
Crew
8.6
Boarding
8.2
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Food
7.5
Entertainment
7.5
Overall
8.1
Comfort
8.1
Crew
8.6
Boarding
8.2
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Food
7.5
Entertainment
7.5
Overall
8.1
Comfort
8.1
Crew
8.6
Boarding
8.2
Reviews
1 / 19
8.0
ExcellentPaul,Mar 2026
YVR - NAN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Sydney. 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 Sydney?
Book flights to Sydney if you plan to visit one of these locationsParramatta
Wollongong
Coogee
Manly
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Find flights from St. Louis to Sydney, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Sydney flights
Browse other St. Louis and Sydney flight options. Last updated on May 5, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on May 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Sydney
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 5, 2026.
Top 4 airlines flying from St. Louis to Sydney
Discover the top 4 airlines that operate flights from St. Louis 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 May 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$887 | Average$1,214 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,144 | Average$1,512 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,145 | Average$1,357 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,233 | Average$1,497 | FlexibilityNo cancel fee | On-time71% |