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

Flying on American Airlines is currently your cheapest option to St. Louis, with prices starting at $1,854. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air Canada, with the lowest prices starting at $1,855 and $1,865, respectively. Users have found that American Airlines is 18% cheaper than the other options available to this destination. Find deals

What are the cheapest airlines to fly from Sydney to St. Louis one-way?

For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $1,328. Users have also found prices from $2,079 and $2,668 on Turkish Airlines and LATAM Airlines, respectively. Find deals

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

Travellers seeking maximum savings on their Sydney to St. Louis flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

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 Qantas Airways. Something to consider prior to booking your flight.

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

It’s generally more expensive to depart on a Friday, 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?

February can be a great time to fly to St. Louis from Sydney with a flight ticket averaging about $2,268. Cheapflights users have found deals in the month of February for as cheap as $1,654. The most expensive prices can be found in the month of August.

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.

$764+ Flights from Sydney to St. Louis

Cheap flight deals from Sydney to St. Louis

Round-trip from	$1,854
One-way from	$764
Popular in	August
Cheapest in	February
Average price	$2,380

American Airlines
10/2-16/2
3 total stops
53h 05m total
Sydney to St. Louis

Search Deals

19/3
3 total stops
33h 58m total
Sydney to St. Louis

Search Deals

High demand for flights, 8% potential price rise

Search Deals

Best time to find cheap flights, 4% potential price drop

Search Deals

Average for round-trip flights in January 2025

Search Deals

Find flight deals from Sydney to St. Louis

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 17 January 2025.

Mon 10/211:15SYD - STL

1 stop28h 48mAmerican Airlines

Sun 16/215:43STL - SYD

2 stops24h 17mAmerican Airlines

Deal found 17/1$1,854

Mon 3/311:50SYD - STL

2 stops24h 59mUnited Airlines

Mon 10/316:30STL - SYD

2 stops24h 35mUnited Airlines

Deal found 16/1$1,855

Thu 13/211:20SYD - STL

2 stops44h 46mAir Canada

Thu 20/215:50STL - SYD

2 stops48h 45mAir Canada

Deal found 15/1$1,865

Mon 12/509:25SYD - STL

2 stops27h 08mDelta

Sat 31/507:20STL - SYD

2 stops32h 15mDelta

Deal found 17/1$1,986

Thu 13/217:25SYD - STL

1 stop22h 43mMultiple Airlines

Thu 20/209:00STL - SYD

1 stop28h 10mMultiple Airlines

Deal found 15/1$2,407

Mon 30/617:35SYD - STL

1 stop20h 23mQantas Airways

Sun 13/706:29STL - SYD

1 stop33h 06mQantas Airways

Deal found 15/1$2,959

Thu 13/221:00SYD - STL

3 stops59h 40mTurkish Airlines

Thu 20/217:36STL - SYD

3 stops56h 24mTurkish Airlines

Deal found 15/1$3,116

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 17 January 2025.

Mon 10/211:15SYD - STL

1 stop28h 48mAmerican Airlines

Sun 16/215:43STL - SYD

2 stops24h 17mAmerican Airlines

Deal found 17/1$1,854

Mon 3/311:50SYD - STL

2 stops24h 59mUnited Airlines

Mon 10/316:30STL - SYD

2 stops24h 35mUnited Airlines

Deal found 16/1$1,855

Thu 13/211:20SYD - STL

2 stops44h 46mAir Canada

Thu 20/215:50STL - SYD

2 stops48h 45mAir Canada

Deal found 15/1$1,865

Mon 12/509:25SYD - STL

2 stops27h 08mDelta

Sat 31/507:20STL - SYD

2 stops32h 15mDelta

Deal found 17/1$1,986

Thu 13/217:25SYD - STL

1 stop22h 43mMultiple Airlines

Thu 20/209:00STL - SYD

1 stop28h 10mMultiple Airlines

Deal found 15/1$2,407

Mon 30/617:35SYD - STL

1 stop20h 23mQantas Airways

Sun 13/706:29STL - SYD

1 stop33h 06mQantas Airways

Deal found 15/1$2,959

Thu 13/221:00SYD - STL

3 stops59h 40mTurkish Airlines

Thu 20/217:36STL - SYD

3 stops56h 24mTurkish Airlines

Deal found 15/1$3,116

Last-minute flights from Sydney to St. Louis
Discover last-minute flight deals from Sydney to St. Louis. Data last updated 17 January 2025 and is based on user searches.

Mon 10/211:15SYD - STL

1 stop28h 48mAmerican Airlines

Sun 16/215:43STL - SYD

2 stops24h 17mAmerican Airlines

Deal found 17/1$1,854

Mon 10/211:50SYD - STL

1 stop19h 47mUnited Airlines

Sun 16/209:00STL - SYD

1 stop28h 20mUnited Airlines

Deal found 17/1$1,855

Thu 13/211:20SYD - STL

2 stops44h 46mAir Canada

Thu 20/215:50STL - SYD

2 stops48h 45mAir Canada

Deal found 15/1$1,865

Thu 13/217:25SYD - STL

1 stop22h 43mMultiple Airlines

Thu 20/209:00STL - SYD

1 stop28h 10mMultiple Airlines

Deal found 15/1$2,407

Thu 13/221:00SYD - STL

3 stops59h 40mTurkish Airlines

Thu 20/217:36STL - SYD

3 stops56h 24mTurkish Airlines

Deal found 15/1$3,116

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 17 January 2025.

Wed 19/314:00SYD - STL

3 stops33h 58mMultiple Airlines

Deal found 17/1$764

Mon 17/312:10SYD - STL

2 stops38h 52mUnited Airlines

Deal found 17/1$1,328

Sun 16/321:00SYD - STL

3 stops57h 23mTurkish Airlines

Deal found 17/1$2,079

Sat 15/311:40SYD - STL

3 stops40h 20mLATAM Airlines

Deal found 17/1$2,668

Find flights from Sydney to St. Louis within your budget

Fly from

Fly to

Route

Depart

Return

Price

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 10/2

11:15-23:03

1 stop28h 48m

Lambert-St Louis

Sun 16/2

15:43-09:00

2 stops24h 17m

$1,854

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 3/3

11:50-19:49

2 stops24h 59m

Lambert-St Louis

Mon 10/3

16:30-09:05

2 stops24h 35m

$1,855

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 13/2

11:20-15:06

2 stops44h 46m

Lambert-St Louis

Thu 20/2

15:50-09:35

2 stops48h 45m

$1,865

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 12/5

09:25-21:33

2 stops27h 08m

Lambert-St Louis

Sat 31/5

07:20-06:35

2 stops32h 15m

$1,986

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 13/2

17:25-23:08

1 stop22h 43m

Lambert-St Louis

Thu 20/2

09:00-06:10

1 stop28h 10m

$2,407

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 30/6

17:35-22:58

1 stop20h 23m

Lambert-St Louis

Sun 13/7

06:29-06:35

1 stop33h 06m

$2,959

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 13/2

21:00-15:40

3 stops59h 40m

Lambert-St Louis

Thu 20/2

17:36-19:00

3 stops56h 24m

$3,116

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 19/3

14:00-07:58

3 stops33h 58m

$764

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 17/3

12:10-11:02

2 stops38h 52m

$1,328

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 16/3

21:00-14:23

3 stops57h 23m

$2,079

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 11 results

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.

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.

Travel insights for flights from Sydney to St. Louis

Get recent, data-driven insights about flights from Sydney to St. Louis including ideal travel times, pricing trends, and more.

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

It’s typically best to fly out from Sydney to St. Louis in the morning. Doing so could potentially save you 32% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in St. Louis by month

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.

Temperature in St. Louis by month

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).

Reviews of airlines servicing St. Louis

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,513 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Qantas Airways

7.5

Good

821 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LATAM Airlines

7.5

Good

1,849 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,969 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Turkish Airlines

7.3

Good

3,925 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from Sydney to St. Louis round-trip?
Flying on American Airlines is currently your cheapest option to St. Louis, with prices starting at $1,854. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air Canada, with the lowest prices starting at $1,855 and $1,865, respectively. Users have found that American Airlines is 18% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Sydney to St. Louis one-way?
For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $1,328. Users have also found prices from $2,079 and $2,668 on Turkish Airlines and LATAM Airlines, respectively.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sydney to St. Louis

Sydney to Kansas City flights

Complete your trip

St. Louis car hire

Lambert-St Louis Airport car hire

Springfield Capital Airport car hire

Belleville Airport car hire

Marion Williamson County Airport car hire

Central West End car hire

Soulard car hire

Midtown car hire

Top 4 airlines flying from Sydney to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$1,478	Average$2,218	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,540	Average$2,562	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$1,552	Average$2,640	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$1,774	Average$2,324	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.

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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 $764

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 19/3. 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 17 January 2025.

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 17 January 2025.

Find flights from Sydney to St. Louis within your budget

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.

Travel insights for flights from Sydney to St. Louis

Get recent, data-driven insights about flights from Sydney to St. Louis including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Sydney to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

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.

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

What are the cheapest airlines to fly from Sydney to St. Louis one-way?

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?

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.

Top 4 airlines flying from Sydney to St. Louis

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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 17 January 2025.