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$1,561+ Cheap flights to St. Louis

— STL
19 Sep — 26 Sep1
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

Tue 17/1111:20 -
2 stops23h 34m
Tue 1/1214:54 -
2 stops25h 06m
Deal found 15/8$1,729
Tue 17/1114:05 -
1 stop23h 14m
Tue 1/1214:54 -
1 stop23h 01m
Deal found 15/8$1,731
Tue 3/1111:20 -
2 stops23h 34m
Thu 26/1114:54 -
2 stops25h 06m
Deal found 15/8$1,734
Tue 17/1111:20 -
2 stops22h 39m
Tue 1/1213:08 -
3 stops26h 57m
Deal found 15/8$1,754
Fri 4/912:00 -
1 stop21h 05m
Fri 18/906:30 -
1 stop33h 35m
Deal found 16/8$2,126
Tue 3/1109:55 -
3 stops26h 27m
Thu 26/1114:23 -
2 stops25h 37m
Deal found 15/8$2,225
Thu 10/920:45 -
2 stops35h 25m
Fri 18/918:08 -
2 stops33h 42m
Deal found 18/8$2,339

Find flight deals to St. Louis

Return from

$1,561

One-way from

$3,801

Popular in

April

Cheapest in

September

Average price

$1,499
American Airlines
  • American Airlines
  • 26/1-30/1
  • 3 total stops
  • 62h 12m total
  • Sydney to St. Louis
Search Deals
15/11
  • 15/11
  • 3 total stops
  • 57h 04m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($238 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($49 potential savings vs. average return price).
Search Deals
Average for return flights in August 2026
Search Deals

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

Tue 26/1

11:20-23:59

1 stop29h 39m

Lambert-St Louis

Sat 30/1

10:12-11:45

2 stops32h 33m

$1,561

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 17/11

11:50-18:09

2 stops23h 19m

Lambert-St Louis

Tue 1/12

13:08-09:05

3 stops26h 57m

$1,761

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Mon 1/2

11:20-16:26

2 stops22h 06m

Lambert-St Louis

Thu 25/2

13:08-09:05

3 stops26h 57m

$1,810

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Mon 1/2

09:55-21:13

3 stops28h 18m

Lambert-St Louis

Thu 25/2

07:33-08:35

3 stops32h 02m

$2,137

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 3/11

09:55-19:22

3 stops26h 27m

Lambert-St Louis

Thu 26/11

14:23-09:00

2 stops25h 37m

$2,225

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 10/9

20:45-17:10

2 stops35h 25m

Lambert-St Louis

Fri 18/9

18:08-18:50

2 stops33h 42m

$2,339

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 4/9

20:45-17:10

2 stops35h 25m

Lambert-St Louis

Fri 18/9

18:08-18:50

2 stops33h 42m

$2,418
Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 1/10

09:10-16:40

2 stops22h 30m

Lambert-St Louis

Thu 8/10

15:20-06:55

1 stop23h 35m

$2,457

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 7/1

11:20-22:06

2 stops27h 46m

Lambert-St Louis

Sun 31/1

13:08-09:05

3 stops26h 57m

$2,630

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 26/1

22:10-19:41

2 stops38h 31m

Lambert-St Louis

Sat 30/1

10:12-19:20

2 stops40h 08m

$2,875

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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
1,083 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Food

7.0

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
1,083 reviews
Qantas Airways
7.5
Good
1,083 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Food

7.0

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
10,103 reviews
Qantas Airways
7.5
Good
1,083 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Food

7.0

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
11,968 reviews
Qantas Airways
7.5
Good
1,083 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Food

7.0

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 $167, while return flights cost around $924.

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

    A return flight to St. Louis will typically cost around $924, however they can be found for as little as $924.

  • 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 (19 hours 40 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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