Cheap Flights from St. Louis (STL) to Sydney (SYD)

View AU$1,038 flight on Sun, 16 Aug 2026Opens in a new window

Flight 1

Popular airlines from Lambert-St. Louis International Airport (STL) to Sydney Airport (SYD)

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Cheap Flights from St. Louis (STL) to Sydney (SYD)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 11 May - Sun, 24 May
STL
St. Louis
SYD
Sydney
AU$1,605 Return, found 2 days ago
AU$1,605
Return
found 2 days ago
Select United flight, departing Mon, 11 May from St. Louis to Sydney, returning Sun, 24 May, priced at AU$1,605 found 2 days ago
Delta
Mon, 11 May - Sun, 24 May
STL
St. Louis
SYD
Sydney
AU$1,606 Return, found 2 days ago
AU$1,606
Return
found 2 days ago
Select Delta flight, departing Mon, 11 May from St. Louis to Sydney, returning Sun, 24 May, priced at AU$1,606 found 2 days ago
Qantas Airways
Mon, 11 May - Sun, 24 May
STL
St. Louis
SYD
Sydney
AU$1,801 Return, found 2 days ago
AU$1,801
Return
found 2 days ago
Select Qantas Airways flight, departing Mon, 11 May from St. Louis to Sydney, returning Sun, 24 May, priced at AU$1,801 found 2 days ago
United
Wed, 5 Aug - Sun, 16 Aug
STL
St. Louis
SYD
Sydney
AU$1,810 Return, found 5 days ago
AU$1,810
Return
found 5 days ago
Select United flight, departing Wed, 5 Aug from St. Louis to Sydney, returning Sun, 16 Aug, priced at AU$1,810 found 5 days ago
Delta
Wed, 5 Aug - Sun, 16 Aug
STL
St. Louis
SYD
Sydney
AU$1,810 Return, found 5 days ago
AU$1,810
Return
found 5 days ago
Select Delta flight, departing Wed, 5 Aug from St. Louis to Sydney, returning Sun, 16 Aug, priced at AU$1,810 found 5 days ago
Qantas Airways
Wed, 5 Aug - Sun, 16 Aug
STL
St. Louis
SYD
Sydney
AU$1,839 Return, found 5 days ago
AU$1,839
Return
found 5 days ago
Select Qantas Airways flight, departing Wed, 5 Aug from St. Louis to Sydney, returning Sun, 16 Aug, priced at AU$1,839 found 5 days ago
Qantas Airways
Wed, 5 Aug - Sun, 16 Aug
STL
St. Louis
SYD
Sydney
AU$1,849 Return, found 5 days ago
AU$1,849
Return
found 5 days ago
Select Qantas Airways flight, departing Wed, 5 Aug from St. Louis to Sydney, returning Sun, 16 Aug, priced at AU$1,849 found 5 days ago
Qantas Airways
Wed, 5 Aug - Sun, 16 Aug
STL
St. Louis
SYD
Sydney
AU$1,850 Return, found 5 days ago
AU$1,850
Return
found 5 days ago
Select Qantas Airways flight, departing Wed, 5 Aug from St. Louis to Sydney, returning Sun, 16 Aug, priced at AU$1,850 found 5 days ago
Air Canada
Tue, 3 Nov - Sat, 7 Nov
STL
St. Louis
SYD
Sydney
AU$1,973 Return, found 2 days ago
AU$1,973
Return
found 2 days ago
Select Air Canada flight, departing Tue, 3 Nov from St. Louis to Sydney, returning Sat, 7 Nov, priced at AU$1,973 found 2 days ago
American Airlines
Mon, 11 May - Sun, 24 May
STL
St. Louis
SYD
Sydney
AU$2,039 Return, found 2 days ago
AU$2,039
Return
found 2 days ago
Select American Airlines flight, departing Mon, 11 May from St. Louis to Sydney, returning Sun, 24 May, priced at AU$2,039 found 2 days ago

Find the cheapest month to fly from St. Louis (STL) to Sydney (SYD)

May is typically the cheapest month to fly

From AU$1,643 - AU$2,367 per traveller.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, American Airlines, Cathay Pacific, Delta, Qantas Airways, United
Return price
AU$1,605
Distance
14496 km

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