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

Dallas (DFW) – chosen by Cheapflights users on 46% of one-stop itineraries from Sydney to St. Louis on Cheapflights. Find deals

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 24m. Find deals

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

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of $1,834. Find deals

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

Flights via Houston (IAH) offer the fastest connection on this route, with an average stopover time of 2h 19m. Find deals

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

Departing from Sydney to St. Louis will take you 27h. The distance from Sydney to St. Louis is about 14571 km.

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 $1,164. Additional round-trip tickets that might be worth considering are offered by American Airlines and Qantas Airways, with the lowest prices starting at $1,611 and $1,697, respectively. Users have found that United Airlines is 36% 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 United Airlines, Qantas Airways 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.

$879+ Cheap Flights from Sydney to St. Louis

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

Airfare is below average for this route at the moment. Sydney to St. Louis flights typically cost between $2,133 and $1,549 in June. The cheapest return flight price found within the last 3 days was $1,441 on United Airlines (17 June-24 June).

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 18 May 2026.

Mon 18/509:10

SYD

STL

1 stop29h 49m

Qantas Airways

Mon 25/506:35

STL

SYD

1 stop33h 30m

Qantas Airways

Deal found 16/5$1,417

Mon 18/509:10

SYD

STL

2 stops25h 20m

American Airlines

Mon 25/509:41

STL

SYD

2 stops30h 24m

American Airlines

Deal found 16/5$1,424

Wed 17/609:30

SYD

STL

2 stops27h 00m

United Airlines

Wed 24/610:25

STL

SYD

2 stops29h 35m

United Airlines

Deal found 17/5$1,441

Thu 11/609:20

SYD

STL

2 stops22h 13m

Air Canada

Wed 17/616:48

STL

SYD

2 stops23h 32m

Air Canada

Deal found 16/5$1,448

Mon 18/510:20

SYD

STL

1 stop23h 02m

United Airlines

Mon 25/510:25

STL

SYD

2 stops29h 35m

United Airlines

Deal found 16/5$1,451

Wed 12/809:30

SYD

STL

2 stops22h 36m

United Airlines

Sat 5/917:59

STL

SYD

2 stops45h 56m

United Airlines

Deal found 13/5$1,461

Wed 12/812:00

SYD

STL

1 stop19h 41m

Qantas Airways

Sat 5/917:11

STL

SYD

1 stop22h 44m

Qantas Airways

Deal found 16/5$1,480

Wed 3/609:10

SYD

STL

1 stop29h 46m

American Airlines

Sun 7/614:58

STL

SYD

2 stops24h 27m

American Airlines

Deal found 16/5$1,482

Wed 20/509:10

SYD

STL

1 stop29h 49m

American Airlines

Thu 28/519:50

STL

SYD

2 stops44h 15m

American Airlines

Deal found 17/5$1,485

Find flight deals from Sydney to St. Louis

Round-trip from	$1,441
One-way from	$879
Popular in	July
Cheapest in	September
Average price	$1,609

United Airlines
17/6-24/6
3 total stops
49h 44m total
Sydney to St. Louis

Search Deals

American Airlines
25/5
2 total stops
29h 34m total
Sydney to St. Louis

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($279 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($85 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 17/6

09:30-21:30

2 stops27h 00m

Lambert-St Louis

Wed 24/6

10:25-07:00

2 stops29h 35m

$1,441

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 12/8

10:20-18:39

1 stop23h 19m

Lambert-St Louis

Sat 5/9

17:59-06:55

2 stops45h 56m

$1,461

Fastest return journey

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 12/6

09:30-16:33

2 stops22h 03m

Lambert-St Louis

Sun 5/7

19:23-06:55

1 stop20h 32m

$1,511

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 11/6

09:20-20:25

3 stops50h 05m

Lambert-St Louis

Wed 17/6

13:05-07:20

3 stops51h 15m

$1,557

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 3/6

09:20-21:10

2 stops26h 50m

Lambert-St Louis

Sun 7/6

08:40-07:20

2 stops31h 40m

$1,689

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 12/8

09:20-18:42

3 stops48h 22m

Lambert-St Louis

Sat 5/9

12:10-07:20

3 stops52h 10m

$1,774

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 8/7

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Mon 20/7

19:23-06:55

1 stop20h 32m

$1,845

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 3/6

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Sun 7/6

19:23-06:55

1 stop20h 32m

$2,892

Cheapest one-way

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 27/5

09:10-23:56

1 stop29h 46m

$879

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 25/5

09:10-20:30

2 stops26h 20m

$889

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 15 resultsSorted 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

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

Currently, September is the cheapest month in which you can book a flight from Sydney to St. Louis (average of $1,325). Flying from Sydney to St. Louis in July is currently the most expensive (average of $2,501). 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?

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

1,037 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!

Qantas Airways

7.5

Good

1,037 reviews

Qantas Airways

7.5

Good

1,037 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

United Airlines

7.4

Good

9,731 reviews

Qantas Airways

7.5

Good

1,037 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

American Airlines

7.1

Good

11,646 reviews

Qantas Airways

7.5

Good

1,037 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Tania,May 2026

SYD - DFW

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. The distance from Sydney to St. Louis is about 14571 km.
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 $1,164. Additional round-trip tickets that might be worth considering are offered by American Airlines and Qantas Airways, with the lowest prices starting at $1,611 and $1,697, respectively. Users have found that United Airlines is 36% 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, September is the cheapest month in which you can book a flight from Sydney to St. Louis (average of $1,325). Flying from Sydney to St. Louis in July is currently the most expensive (average of $2,501). 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

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Alternative routes for Sydney to St. Louis

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Top 3 airlines flying from Sydney to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,164	Average$1,698	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$1,611	Average$1,754	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$1,697	Average$1,799	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

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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?

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

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Cheap flights from Sydney to St. Louis from $879

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/5. 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 18 May 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 18 May 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 18 May 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 18 May 2026.

Last-minute flights from Sydney to St. LouisDiscover last-minute flight deals from Sydney to St. Louis. Data last updated 18 May 2026 and is based on user searches.

Discover last-minute flight deals from Sydney to St. Louis. Data last updated 18 May 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 18 May 2026.

Search for one-way flight options from Sydney to St. Louis. Find affordable one-way fares based on user searches. Data last updated 18 May 2026.

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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

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

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?

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

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

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

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

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

Find useful and relevant information for your journey from Sydney to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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?

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Alternative routes for Sydney to St. Louis

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Complete your trip

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Direct flights to United States

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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 18 May 2026.

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Browse through other flights departing from Sydney. Flights are based on user searches made on Cheapflights and were last updated on 18 May 2026.

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Top 3 airlines flying from Sydney to St. Louis

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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 18 May 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 18 May 2026.

Last-minute flights from Sydney to St. Louis
Discover last-minute flight deals from Sydney to St. Louis. Data last updated 18 May 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 18 May 2026.