What’s the top stopover airport for flights from Sydney to St. Louis?

Dallas (DFW) – chosen by Cheapflights users on 67% of one-stop itineraries from Sydney to St. Louis on Cheapflights.

What’s the cheapest stopover airport for flights from Sydney to St. Louis?

San Francisco (SFO) is the most affordable one-stop option, with an average return flight price of $1,831.

What’s the fastest stopover option from Sydney to St. Louis?

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 19h 58m.

Which airport typically offers the quickest stopover for flights from Sydney to St. Louis?

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 2h 35m.

How long is the flight from Sydney to St. Louis?

Departing from Sydney to St. Louis will take you 27h 49m. The distance from Sydney to St. Louis is about 14571 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Flying on United Airlines is currently your cheapest option to St. Louis, with prices starting at $1,439. Additional round-trip tickets that might be worth considering are offered by American Airlines and Qantas Airways, with the lowest prices starting at $1,450 and $1,496, respectively. Users have found that United Airlines is 22% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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

The most popular airlines flying from Sydney to St. Louis are Qantas Airways, United Airlines and American Airlines. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from SYD to STL?

When flying from Sydney to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Sydney to St. Louis that include hotel bookings?

Yes. In addition to deals on Sydney to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Sydney to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to St. Louis.

Can I find deals for business class flights from Sydney to St. Louis?

Yes. Cheapflights offers flight deals from Sydney to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,055+ Cheap Flights from Sydney to St. Louis

Cheap flight deals from Sydney to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Sydney to St. Louis
Explore the most affordable flight options available from Sydney to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Thu 12/1111:20 -

2 stops22h 30m

Mon 16/1114:55 -

2 stops25h 10m

Deal found 4/11$2,969

Tue 15/1211:10 -

2 stops23h 36m

Tue 22/1216:32 -

2 stops23h 28m

Deal found 31/10$3,118

Tue 15/1211:10 -

1 stop26h 30m

Tue 22/1218:57 -

1 stop42h 58m

Deal found 31/10$3,262

Thu 17/1211:50 -

1 stop45h 36m

Sun 27/1217:07 -

1 stop23h 13m

Deal found 1/11$7,023

Find flight deals from Sydney to St. Louis

Round-trip from	$1,738
One-way from	$1,055
Popular in	April
Cheapest in	January
Average price	$1,735

United Airlines
23/2-1/3
4 total stops
99h 54m total
Sydney to St. Louis

Search Deals

United Airlines
13/11-31/12
2 total stops
29h 25m total
Sydney to St. Louis

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($234 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($61 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 13/11

09:15-14:13

1 stop21h 58m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,055

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 13/11

11:10-20:42

1 stop26h 32m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,106

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 13/11

11:50-23:24

3 stops28h 34m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,276

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

11:20-20:54

2 stops50h 34m

Lambert-St Louis

Mon 1/3

14:45-09:05

2 stops49h 20m

$1,738

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 25/2

14:05-18:09

1 stop21h 04m

Lambert-St Louis

Tue 23/3

14:35-06:25

2 stops23h 50m

$1,793

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 25/2

10:40-21:29

2 stops27h 49m

Lambert-St Louis

Tue 23/3

07:20-07:20

2 stops32h 00m

$1,798

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

21:35-21:12

3 stops64h 37m

Lambert-St Louis

Mon 1/3

06:15-19:25

3 stops68h 10m

$2,729

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

06:55-13:41

2 stops23h 46m

Lambert-St Louis

Mon 1/3

14:21-11:05

3 stops27h 44m

$3,008

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 15/12

14:05-20:27

1 stop23h 22m

Lambert-St Louis

Tue 22/12

16:32-09:00

2 stops23h 28m

$3,251

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 8/1

14:05-20:29

2 stops23h 24m

Lambert-St Louis

Tue 2/2

14:55-12:25

3 stops28h 30m

$3,432

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Sorted by cheapest first

Best time to book a flight from Sydney to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Sydney with our price prediction graph.

SYD-STL

Estimated return 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 Sydney to St. Louis

Prices

Currently, January is the cheapest month in which you can book a flight from Sydney to St. Louis (average of $1,455). Flying from Sydney to St. Louis in April is currently the most expensive (average of $2,325). 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 for a return flight from Sydney to St. Louis?

Airfare is typical for this route at the moment.

Sydney to St. Louis flights typically cost between $1,626 and $1,826 in February.
The cheapest return price found within the last 5 days was $1,738 on United Airlines (23 Feb–1 Mar).

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Qantas Airways,United Airlines, andAmerican Airlines from Sydney to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qantas Airways

7.5

Good

1,122 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Qantas Airways

7.5

Good

1,122 reviews

Qantas Airways

7.5

Good

1,122 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

United Airlines

7.3

Good

10,463 reviews

Qantas Airways

7.5

Good

1,122 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

American Airlines

7.0

Good

12,232 reviews

Qantas Airways

7.5

Good

1,122 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Related info for your journey

How long is the flight from Sydney to St. Louis?
Departing from Sydney to St. Louis will take you 27h 49m. The distance from Sydney to St. Louis is about 14571 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Sydney to St. Louis round-trip?
Flying on United Airlines is currently your cheapest option to St. Louis, with prices starting at $1,439. Additional round-trip tickets that might be worth considering are offered by American Airlines and Qantas Airways, with the lowest prices starting at $1,450 and $1,496, respectively. Users have found that United Airlines is 22% cheaper than the other options available to this destination.
Can I find deals for flights from Sydney to St. Louis that include hotel bookings?
Yes. In addition to deals on Sydney to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Sydney to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to St. Louis.
Can I find deals for business class flights from Sydney to St. Louis?
Yes. Cheapflights offers flight deals from Sydney to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sydney to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Sydney to St. Louis (average of $1,455). Flying from Sydney to St. Louis in April is currently the most expensive (average of $2,325). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Other flights from Sydney

Popular flights

Alternative routes for Sydney to St. Louis

Sydney to Kansas City flights

Top 3 airlines flying from Sydney to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,439	Average$2,238	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$1,450	Average$2,023	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$1,496	Average$1,785	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Sydney to St. Louis?

When you search for this flight from Sydney to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Sydney to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Sydney to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sydney to St. Louis with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to St. Louis with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to St. Louis become cheaper?

Not ready to book yet? You can track prices for flights from Sydney to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Sydney to St. Louis from $1,055

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Sydney to St. Louis

Cheapest flights from Sydney to St. LouisExplore the most affordable flight options available from Sydney to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Explore the most affordable flight options available from Sydney to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Sydney to St. LouisDiscover carefully curated flight deals from Sydney to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Discover carefully curated flight deals from Sydney to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Sydney to St. LouisDiscover last-minute flight deals from Sydney to St. Louis. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Sydney to St. Louis. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Sydney to St. LouisSearch for one-way flight options from Sydney to St. Louis. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Search for one-way flight options from Sydney to St. Louis. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Sydney to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sydney to St. Louis that are best for you.

Best time to book a flight from Sydney to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Sydney with our price prediction graph.

Cheapflights Insights

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

How much does it cost for a return flight from Sydney to St. Louis?

Airfare is typical for this route at the moment.

Sydney to St. Louis flights typically cost between $1,626 and $1,826 in February.The cheapest return price found within the last 5 days was $1,738 on United Airlines (23 Feb–1 Mar).

What’s the top stopover airport for flights from Sydney to St. Louis?

Dallas (DFW) – chosen by Cheapflights users on 67% of one-stop itineraries from Sydney to St. Louis on Cheapflights.

What’s the cheapest stopover airport for flights from Sydney to St. Louis?

San Francisco (SFO) is the most affordable one-stop option, with an average return flight price of $1,831.

What’s the fastest stopover option from Sydney to St. Louis?

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 19h 58m.

Which airport typically offers the quickest stopover for flights from Sydney to St. Louis?

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 2h 35m.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Qantas Airways,United Airlines, andAmerican Airlines from Sydney to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Sydney to St. Louis?

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

Can I find deals for flights from Sydney to St. Louis that include hotel bookings?

How can I find direct flights from Sydney to St. Louis?

Can I find deals for business class flights from Sydney to St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sydney to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to St. Louis by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Sydney to St. Louis by cabin class

Find flights from Sydney to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Sydney and St. Louis flights

Browse other Sydney and St. Louis flight options. Last updated on 5 November 2026.

Other flights from Sydney

Browse through other flights departing from Sydney. Flights are based on user searches made on Cheapflights and were last updated on 5 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 3 airlines flying from Sydney to St. Louis

Fly with Cheapflights

How does Cheapflights help users find flights from Sydney to St. Louis?

Why should you use Cheapflights to find cheap flight tickets from Sydney to St. Louis?

Can Cheapflights find flights from Sydney to St. Louis with no change fees?

Can Cheapflights notify me if prices for flights from Sydney to St. Louis become cheaper?

100% Free

Book with flexibility

Travel Smart

Cheapest flights from Sydney to St. Louis
Explore the most affordable flight options available from Sydney to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Sydney to St. Louis
Discover carefully curated flight deals from Sydney to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Sydney to St. Louis
Discover last-minute flight deals from Sydney to St. Louis. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Sydney to St. Louis
Search for one-way flight options from Sydney to St. Louis. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Sydney to St. Louis flights typically cost between $1,626 and $1,826 in February.
The cheapest return price found within the last 5 days was $1,738 on United Airlines (23 Feb–1 Mar).