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$1,616+ Cheap flights to St. Louis

— STL
29 Sep — 6 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

Tue 13/1010:10 -
1 stop29h 36m
Thu 5/1112:58 -
1 stop24h 57m
Deal found 25/8$1,616
Tue 20/1010:10 -
1 stop29h 36m
Sat 24/1008:48 -
2 stops34h 57m
Deal found 29/8$1,645
Thu 8/1013:00 -
1 stop21h 20m
Thu 15/1006:04 -
2 stops36h 26m
Deal found 25/8$1,652
Wed 23/909:10 -
1 stop29h 20m
Wed 30/906:30 -
1 stop33h 35m
Deal found 26/8$1,744
Wed 23/910:20 -
2 stops21h 14m
Wed 30/913:29 -
2 stops26h 26m
Deal found 26/8$1,763

Find flight deals to St. Louis

Return from

$1,616

Popular in

April

Cheapest in

September

Average price

$1,485
American Airlines
  • American Airlines
  • 13/10-5/11
  • 2 total stops
  • 54h 33m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($221 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for return flights in August 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

Wed 23/9

09:10-23:30

1 stop29h 20m

Lambert-St Louis

Wed 30/9

06:30-07:05

1 stop33h 35m

$1,744

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 22/9

09:15-23:16

2 stops29h 01m

Lambert-St Louis

Fri 2/10

17:47-06:50

2 stops46h 03m

$1,765

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 13/10

10:30-17:01

2 stops22h 31m

Lambert-St Louis

Thu 5/11

13:08-09:05

3 stops26h 57m

$1,817

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 25/12

10:40-21:51

2 stops28h 11m

Lambert-St Louis

Thu 28/1

06:30-08:30

2 stops33h 00m

$2,209

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:20-16:37

2 stops22h 17m

Lambert-St Louis

Sat 24/10

13:36-08:35

2 stops26h 59m

$2,526

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 20/10

10:20-23:44

2 stops29h 24m

Lambert-St Louis

Sat 24/10

11:35-08:35

3 stops29h 00m

$2,540

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 13/10

11:55-23:44

3 stops27h 49m

Lambert-St Louis

Thu 5/11

07:30-10:35

3 stops34h 05m

$2,596
Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 25/12

11:50-17:08

2 stops22h 18m

Lambert-St Louis

Thu 28/1

13:09-09:05

3 stops26h 56m

$2,614

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

$2,660

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 20/10

22:05-21:21

3 stops39h 16m

Lambert-St Louis

Sat 24/10

08:00-19:25

3 stops67h 25m

$2,668

Flights are sorted by cheapest return flights first.

Deals found on 26/8

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
1,087 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Entertainment

7.2

Overall

7.5

Comfort

7.4

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
1,087 reviews
Qantas Airways
7.5
Good
1,087 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Entertainment

7.2

Overall

7.5

Comfort

7.4

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
10,139 reviews
Qantas Airways
7.5
Good
1,087 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Entertainment

7.2

Overall

7.5

Comfort

7.4

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
12,021 reviews
Qantas Airways
7.5
Good
1,087 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Entertainment

7.2

Overall

7.5

Comfort

7.4

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 $165, while return flights cost around $915.

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

    A return flight to St. Louis will typically cost around $915, however they can be found for as little as $915.

  • 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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