Prices are in Australian Dollars.

Cheap flights from Sydney to St. Louis

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

All the information you need to plan the best SYD to STL flight in 2021: compare Sydney to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
SYD - STL
Price
$1,030 - $1,885
STL
Temperature
0 - 27 °C
STL
Precipitation
56 - 119 mm

Popular in

December

High demand for flights, 29% potential price rise

Cheapest in

May

Best time to find cheap flights, 23% potential price drop

Average price

$1,259

Average for round-trip flights in ספטמבר 2021

Round-trip from

₪1,030

From Sydney Kingsford Smith to Lambert-St Louis

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 return from Sydney to St. Louis?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

May can be a great time to fly to St. Louis from Sydney with a flight ticket averaging about $1,331. Cheapflights users have found deals in the month of May for as cheap as $917. The most expensive prices can be found in the month of December.

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

It’s typically best to fly out from Sydney to St. Louis in the afternoon. Doing so could potentially save you 8% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Sydney</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From Sydney to St. Louis

Which airlines flying from Sydney Kingsford Smith to Lambert-St Louis have flexible cancellations due to COVID-19?

American Airlines, United Airlines, and Qantas Airways are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

How popular is this Sydney to St. Louis flight route?

Within the past month, 176 users have taken a look at flights from Sydney Kingsford Smith to Lambert-St Louis.

What are the cheapest flights from Sydney to St. Louis?

Looking at all options, your cheapest flight can be booked for $1,933. While the most popular route (Sydney Kingsford Smith - Lambert-St Louis) can be booked for $2,633 on average our data indicates $2,252 when flying from Sydney to St. Louis

What are the most popular airlines that fly from Sydney to St. Louis?

The most popular airlines flying from Sydney to St. Louis are American Airlines, Air Canada and Air New Zealand. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for St. Louis (STL)

Do I need a COVID test to fly to St. Louis from Sydney?

Information is based on travel restrictions from Sydney Kingsford Smith to Lambert-St Louis

Most visitors from Sydney Kingsford Smith need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from Sydney Kingsford Smith must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Sydney Kingsford Smith are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to Sydney from St. Louis?

Returning to Sydney Kingsford Smith from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Sydney Kingsford Smith.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Sydney Kingsford Smith.

Hide COVID Travel Restrictions for St. Louis (STL)

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from Sydney to St. Louis.
Today's exchange rate
$1 = $0.73
Average temperature for September in St. Louis
28.0 °C
Avg rainfall for September in St. Louis
76.0 mm

Airports servicing Sydney

Airports servicing St. Louis

Top 4 airlines flying from Sydney Kingsford Smith to Lambert-St Louis

The chart below displays the airlines Cheapflights users travelling from Sydney to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$1,066 $1,489 No cancel fee 69%
Search United Airlines flights
Air New Zealand
$1,067 $1,340 No cancel fee 78%
Search Air New Zealand flights
Qantas Airways
$1,148 $1,731 No cancel fee 74%
Search Qantas Airways flights
American Airlines
$1,197 $1,496 No cancel fee 71%
Search American Airlines flights
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