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$1,102+ Cheap flights to St. Louis

— STL
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags

Flights to St. Louis in 2026

Enter your travel dates to find the best prices.

Cheapest flights to St. Louis

Wed 21/1010:10 -
1 stop29h 36m
Sat 24/1019:10 -
2 stops24h 35m
Deal found 8/9$1,580
Wed 21/1010:20 -
2 stops29h 24m
Sat 24/1005:10 -
2 stops35h 25m
Deal found 8/9$1,589
Tue 20/1010:10 -
1 stop29h 36m
Tue 27/1012:47 -
2 stops30h 58m
Deal found 4/9$1,599
Mon 12/1010:10 -
1 stop29h 36m
Thu 5/1112:58 -
1 stop24h 57m
Deal found 7/9$1,616
Thu 17/909:10 -
1 stop29h 20m
Sat 7/1118:44 -
1 stop43h 11m
Deal found 8/9$1,631
Thu 17/909:10 -
2 stops22h 30m
Sat 7/1114:54 -
2 stops25h 06m
Deal found 8/9$1,632

Find flight deals to St. Louis

Return from

$1,427

One-way from

$1,102

Popular in

April

Cheapest in

September

Average price

$1,440
Air Canada
  • Air Canada
  • 12/10-5/11
  • 4 total stops
  • 52h 55m total
  • Sydney to St. Louis
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American Airlines
  • American Airlines
  • 17/10-31/12
  • 2 total stops
  • 24h 10m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($217 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($47 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
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Cheapflights Fare Finder

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

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Sat 17/10

10:10-18:20

2 stops24h 10m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,102
Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Sat 17/10

11:20-18:43

1 stop23h 23m

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

Sat 17/10

11:15-23:59

3 stops52h 44m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,419

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:10-23:46

1 stop29h 36m

Lambert-St Louis

Sat 24/10

19:10-11:45

2 stops24h 35m

$1,580

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:20-23:44

2 stops29h 24m

Lambert-St Louis

Sat 24/10

05:10-08:35

2 stops35h 25m

$1,589

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Mon 12/10

10:10-23:46

1 stop29h 36m

Lambert-St Louis

Thu 5/11

14:54-09:30

2 stops25h 36m

$1,700

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 20/10

10:30-17:01

2 stops22h 31m

Lambert-St Louis

Tue 27/10

13:08-08:05

3 stops26h 57m

$1,740

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

22:20-20:57

2 stops38h 37m

Lambert-St Louis

Sat 24/10

19:10-20:50

2 stops33h 40m

$2,598

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

22:05-21:21

3 stops39h 16m

Lambert-St Louis

Sat 24/10

08:00-19:25

3 stops67h 25m

$2,646

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Sorted by cheapest first

Best time to book a flight to St. Louis

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

Cheapflights Insights

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

What are the cheapest airlines that fly to St. Louis?

The cheapest airlines flying from Sydney to St. Louis are United Airlines, American Airlines and Qantas Airways.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Qantas Airways,United Airlines, andAmerican Airlines to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
1,091 reviews
Check prices

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Boarding

7.7

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
1,091 reviews
Qantas Airways
7.5
Good
1,091 reviews
Check prices

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Boarding

7.7

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!
United Airlines
7.4
Good
10,190 reviews
Qantas Airways
7.5
Good
1,091 reviews
Check prices

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Boarding

7.7

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!
American Airlines
7.1
Good
12,046 reviews
Qantas Airways
7.5
Good
1,091 reviews
Check prices

Crew

8.1

Entertainment

7.2

Food

7.0

Overall

7.5

Comfort

7.4

Boarding

7.7

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!

FAQs about flying to St. Louis

  • What airport do you fly into for flights to St. Louis?

    If you book a flight to St. Louis, you will be flying into Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 20.4 km from the centre of St. Louis.

  • Can I find cheaper flights to St. Louis if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Louis on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to St. Louis?

    Based on reviews from Cheapflights users, Qantas Airways is rated the highest out of the airlines that fly to St. Louis.

  • What is the cheapest airport to fly to in St. Louis?

    Lambert-St Louis is currently the cheapest airport to fly to in St. Louis. One-way flights to Lambert-St Louis typically cost $164, while return flights cost around $909.

  • How much is a return flight to St. Louis?

    A return flight to St. Louis will typically cost around $909, however they can be found for as little as $909.

  • Where does the fastest flight to St. Louis depart from?

    For those looking to save time traveling to St. Louis, Sydney Kingsford Smith offers the quickest one-way flight (20 hours 56 minutes).

  • Does Lambert-St Louis have car hire?

    Yes. Those touching down at Lambert-St Louis can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Lambert-St Louis?

    Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. St Ann Townhome Less Than 1 Mi to International Airport! is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

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