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$1,057+ Cheap flights to St. Louis

— STL
4 Dec — 11 Dec1
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 15/1211:10 -
2 stops23h 36m
Tue 22/1216:32 -
2 stops23h 28m
Deal found 31/10$3,126
Tue 15/1211:10 -
1 stop26h 30m
Tue 22/1218:57 -
1 stop42h 58m
Deal found 31/10$3,271
Thu 17/1211:50 -
1 stop45h 36m
Sun 27/1217:07 -
1 stop23h 13m
Deal found 1/11$7,042

Find flight deals to St. Louis

Return from

$1,742

One-way from

$1,057

Popular in

April

Cheapest in

January

Average price

$1,739
United Airlines
  • United Airlines
  • 23/2-1/3
  • 4 total stops
  • 99h 54m total
  • Sydney to St. Louis
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United Airlines
  • United Airlines
  • 13/11-31/12
  • 2 total stops
  • 29h 25m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($165 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($43 potential savings vs. average return price).
Search Deals
Average for return flights in November 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
Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 13/11

09:15-14:13

1 stop21h 58m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,057

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 13/11

11:10-20:42

1 stop26h 32m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,109

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 13/11

11:50-23:24

3 stops28h 34m

Lambert-St Louis

Wed 31/12

00:00-16:00

Nonstop0h 00m

$1,280

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

11:20-20:54

2 stops50h 34m

Lambert-St Louis

Mon 1/3

14:45-09:05

2 stops49h 20m

$1,742

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

21:35-21:12

3 stops64h 37m

Lambert-St Louis

Mon 1/3

06:15-19:25

3 stops68h 10m

$2,737

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

06:55-13:41

2 stops23h 46m

Lambert-St Louis

Mon 1/3

14:21-11:05

3 stops27h 44m

$3,016

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 15/12

11:10-17:46

2 stops23h 36m

Lambert-St Louis

Tue 22/12

16:32-09:00

2 stops23h 28m

$3,126

Flights are sorted by cheapest return flights first.

Deals found on 4/11

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
1,122 reviews
Check prices

Food

7.0

Comfort

7.5

Entertainment

7.2

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour
Qantas Airways
7.5
Good
1,122 reviews
Qantas Airways
7.5
Good
1,122 reviews
Check prices

Food

7.0

Comfort

7.5

Entertainment

7.2

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour
United Airlines
7.3
Good
10,463 reviews
Qantas Airways
7.5
Good
1,122 reviews
Check prices

Food

7.0

Comfort

7.5

Entertainment

7.2

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour
American Airlines
7.0
Good
12,232 reviews
Qantas Airways
7.5
Good
1,122 reviews
Check prices

Food

7.0

Comfort

7.5

Entertainment

7.2

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

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 $170, while return flights cost around $389.

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

    A return flight to St. Louis will typically cost around $410, however they can be found for as little as $389.

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

    For those looking to save time traveling to St. Louis, Brisbane offers the quickest one-way flight (22 hours 14 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. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

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