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 $2,045 and $1,809 in May. The cheapest return flight price found within the last 3 days was $1,755 on Air Canada (20 May-28 May). Find deals

Question 1

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

Accepted Answer

Dallas (DFW) – chosen by Cheapflights users on 42% of one-stop itineraries from Sydney to St. Louis on Cheapflights. Find deals

Question 2

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

Accepted Answer

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 19h 21m. Find deals

Question 3

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

Accepted Answer

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of $1,824. Find deals

Question 4

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

Accepted Answer

Airfare is below average for this route at the moment.Sydney to St. Louis flights typically cost between $2,045 and $1,809 in May.
The cheapest return flight price found within the last 3 days was $1,755 on Air Canada (20 May-28 May). Find deals

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

Departing from Sydney to St. Louis will take you 29h 38m. 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.

Question 7

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

Accepted Answer

Flying on United Airlines is currently your cheapest option to St. Louis, with prices starting at $1,161. Additional round-trip tickets that might be worth considering are offered by American Airlines and Qantas Airways, with the lowest prices starting at $1,607 and $1,693, respectively. Users have found that United Airlines is 36% cheaper than the other options available to this destination.

Question 8

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

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Sydney to St. Louis (average of $1,322). Flying from Sydney to St. Louis in April is currently the most expensive (average of $2,286). 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.

Question 9

E

Accepted Answer

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.

Question 10

E

Accepted Answer

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).

Question 11

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

Accepted Answer

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.

Question 12

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

Accepted Answer

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.

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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.

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,161	Average$1,694	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$1,607	Average$1,749	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$1,693	Average$1,795	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

Cheap flights from Sydney to St. Louis from $1,967

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/5. 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 19 April 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 19 April 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 19 April 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 19 April 2026.

Last-minute flights from Sydney to St. LouisDiscover last-minute flight deals from Sydney to St. Louis. Data last updated 19 April 2026 and is based on user searches.

Discover last-minute flight deals from Sydney to St. Louis. Data last updated 19 April 2026 and is based on user searches.

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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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Sydney and St. Louis flights

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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?

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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 19 April 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 19 April 2026.

Last-minute flights from Sydney to St. Louis
Discover last-minute flight deals from Sydney to St. Louis. Data last updated 19 April 2026 and is based on user searches.