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Cheap flights from St Louis (STL) to Sydney (SYD)

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The best prices from St Louis to Sydney are usually found in February or April, booked 54 days in advance, depart on a Monday or Tuesday and return on a Monday

How to find the cheapest flight from
St Louis (STL) to Sydney (SYD)

STL - SYD
Price
$989 - $1,810
SYD
Temperature
32 - 75.2 °F
SYD
Rainfall
3.3 - 6.3 inches

Popular in

December

High demand for flights, 34% potential price rise

Cheapest in

February

Best time to find cheap flights, 17% potential price drop

Average price

$1,126

Average for round-trip flights in September 2020

Round-trip from

$989

From St Louis to Sydney

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St Louis to Sydney?

Sunday is generally a great day to depart. Flying on this day could help you save up to 25%.

How far in advance should I book a flight from St Louis to Sydney?

To save on the cost of your flight from St Louis to Sydney, book at least 46 days before your planned departure. Booking around this time can save you about 16% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $972 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,089.

What is the cheapest month to fly from St Louis to Sydney?

Flights from St Louis to Sydney lean towards being more expensive in December. Prices are generally better when you fly from St Louis to Sydney in March, with the cheapest ticket starting at $734.

When is the cheapest time to fly from St Louis to Sydney (STL - SYD)?

When flying from St Louis to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight in the evening.

Cheap flights from St Louis to Sydney in September, October 2020

The best prices found for STL to SYD flights for September, October
26 Oct - 2 Nov
$1,235pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Air Canada
   
2 STOPS
STL
Lambert-St Louis
28 Oct - 4 Nov
$1,260pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Air Canada
   
2 STOPS
STL
Lambert-St Louis
29 Oct - 1 Nov
$1,290pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Air Canada
   
2 STOPS
STL
Lambert-St Louis

St Louis to Sydney 2020 flight deals

Cheap flights to Sydney from St Louis found for this year
26 Oct - 2 Nov
$1,235pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Air Canada
   
2 STOPS
STL
Lambert-St Louis
28 Oct - 4 Nov
$1,260pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Air Canada
   
2 STOPS
STL
Lambert-St Louis
29 Oct - 1 Nov
$1,290pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Air Canada
   
2 STOPS
STL
Lambert-St Louis

Related info for your journey

Useful info, stats and facts about St Louis to Sydney flights.

Flight FAQs

From St Louis to Sydney

Are flight prices decreasing from St Louis to Sydney due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Sydney for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from St Louis to Sydney for under $1,300 on Cheapflights?

Yes, there are multiple flights from St Louis to Sydney for under $1,300. The cheapest flight booked recently is on Qatar Airways for just $1,230, but on average you can expect to pay $2,187.

Are there nonstop flights from St Louis to Sydney for under $1,200 on Cheapflights?

There are no nonstop flights from St Louis to Sydney, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in St Louis or Sydney?

The rainfall in St Louis is generally less than the rainfall in Sydney. This will continue over the next 10 days.

Is St Louis weather warmer or cooler than Sydney?

Expect the weather to be around 90 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Sydney is generally colder than in St Louis.

How long is the flight from St Louis to Sydney?

Departing from St Louis to Sydney will take you 23h 35m. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from St Louis to Sydney round-trip?

Flying on Qatar Airways is currently your cheapest option to Sydney, with prices starting at $1,230. Additional round-trip tickets that might be worth considering are offered by Delta and Cathay Pacific, with the lowest prices starting at $1,570 and $2,166, respectively.

Destination information for Sydney

Things to know before you go. Useful info for your trip from St Louis to Sydney
Today's exchange rate
$1 = $1.42
Average temperature for September in Sydney
68.0 °F
Avg rainfall for September in Sydney
4.9 ″

Airports servicing St. Louis

Airports servicing Sydney

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