Question 1

What is the cheapest flight from Sydney to St. Louis?

Accepted Answer

In the last 3 days, the lowest price for a flight from Sydney to St. Louis was $639 for a one-way ticket and $1,087 for a round-trip. <a href='/flight-routes/Sydney-Kingsford-Smith-SYD/Lambert-St-Louis-STL'>Visit our flight page for the latest deals!>/a>

Question 2

Do I need a passport to fly between Sydney and St. Louis?

Accepted Answer

Yes <a href='/flight-routes/Sydney-Kingsford-Smith-SYD/Lambert-St-Louis-STL'>Visit our flight page for the latest deals!>/a>

Question 3

Which aircraft models fly most regularly from Sydney to St. Louis?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 4

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

Accepted Answer

The cheapest month for flights from Sydney to St. Louis is September, where tickets cost $948 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $1,640 and $1,608 respectively.

Question 5

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

Accepted Answer

The cheapest month for flights from Sydney to St. Louis is September, where tickets cost $948 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $1,640 and $1,608 respectively.

Question 6

How does KAYAK find such low prices on flights from Sydney to St. Louis?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to St. Louis. <a href='/flight-routes/Sydney-Kingsford-Smith-SYD/Lambert-St-Louis-STL'>Visit our flight page for the latest deals!>/a>

Question 7

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to St. Louis?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Sydney is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Sydney-Kingsford-Smith-SYD/Lambert-St-Louis-STL'>Visit our flight page for the latest deals!>/a>

Question 8

What is the Hacker Fare option on flights from Sydney to St. Louis?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Sydney with another airline. Booking your flights between Sydney and STL can sometimes prove cheaper using this method. <a href='/flight-routes/Sydney-Kingsford-Smith-SYD/Lambert-St-Louis-STL'>Visit our flight page for the latest deals!>/a>

Question 9

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to St. Louis?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Sydney-Kingsford-Smith-SYD/Lambert-St-Louis-STL'>Visit our flight page for the latest deals!>/a>

Question 10

Which airlines provide the cheapest flights from Sydney to St. Louis?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Sydney to St. Louis were found on Delta ($1,087) and Air Canada ($1,213).

Question 11

Which airlines provide the cheapest flights from Sydney to St. Louis?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Sydney to St. Louis were found on Delta ($1,087) and Air Canada ($1,213).

Question 12

How much is a round-trip flight from Sydney to St. Louis?

Accepted Answer

Flight prices are below average for this route right now.Flights to St. Louis from Sydney usually cost between $1,526 and $1,111 in May.
The lowest price found in the past 3 days was $1,087 on Delta (May 20-May 28).

Low season	March
High season	July
Cheapest flight	$737

SYD - STL

$639 Find Cheap Flights from Sydney to St. Louis

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Everything you should know

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

Recent round-trip flight deals from Sydney to St. Louis

Recent one-way flight deals from Sydney to St. Louis

KAYAK's insights & trends for Sydney to St. Louis flights

Get data-powered insights and trends into flights from Sydney to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sydney to St. Louis?

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

The cheapest month for flights from Sydney to St. Louis is September, where tickets cost $948 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $1,640 and $1,608 respectively.

Which airlines provide the cheapest flights from Sydney to St. Louis?

In the past 3 days, the cheapest round-trip tickets from Sydney to St. Louis were found on Delta ($1,087) and Air Canada ($1,213).

Good to know

When to book flights from Sydney to St. Louis

FAQs for booking flights from Sydney to St. Louis

What is the cheapest flight from Sydney to St. Louis?

In the last 3 days, the lowest price for a flight from Sydney to St. Louis was $639 for a one-way ticket and $1,087 for a round-trip.

Do I need a passport to fly between Sydney and St. Louis?

Yes

Which aircraft models fly most regularly from Sydney to St. Louis?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Sydney to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Sydney to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Sydney with another airline. Booking your flights between Sydney and STL can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Sydney to St. Louis

Information on your arrival and departure airports

Cabin class types available on flights from Sydney to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights to and from Sydney and St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight