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$892+ Cheap flights to St. Louis

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
6 Jul — 13 Jul1
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
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 6 June 2026.

Mon 22/617:50
SYD
-
STL
2 stops21h 07m
American Airlines
Mon 17/815:32
STL
-
SYD
2 stops24h 33m
American Airlines
Deal found 5/6$1,435
Wed 24/617:50
SYD
-
STL
2 stops29h 41m
American Airlines
Tue 18/810:16
STL
-
SYD
2 stops29h 49m
American Airlines
Deal found 2/6$1,443
Tue 23/609:30
SYD
-
STL
2 stops27h 00m
United Airlines
Mon 17/811:15
STL
-
SYD
2 stops28h 45m
United Airlines
Deal found 5/6$1,450
Wed 24/617:50
SYD
-
STL
1 stop21h 06m
American Airlines
Sun 16/806:00
STL
-
SYD
1 stop34h 30m
American Airlines
Deal found 2/6$1,453
Mon 22/609:30
SYD
-
STL
2 stops29h 27m
United Airlines
Sun 16/813:36
STL
-
SYD
2 stops26h 24m
United Airlines
Deal found 2/6$1,458
Sun 21/609:10
SYD
-
STL
2 stops30h 06m
American Airlines
Sun 16/806:00
STL
-
SYD
1 stop34h 05m
American Airlines
Deal found 5/6$1,495
Wed 5/809:10
SYD
-
STL
1 stop28h 49m
American Airlines
Sat 29/817:11
STL
-
SYD
1 stop22h 44m
American Airlines
Deal found 6/6$1,497
Sun 21/609:10
SYD
-
STL
1 stop29h 46m
American Airlines
Wed 19/817:11
STL
-
SYD
2 stops22h 54m
American Airlines
Deal found 2/6$1,502
Sat 20/617:50
SYD
-
STL
2 stops35h 02m
American Airlines
Sun 16/809:32
STL
-
SYD
2 stops30h 33m
American Airlines
Deal found 5/6$1,505
Mon 22/617:50
SYD
-
STL
2 stops21h 07m
American Airlines
Sat 22/813:25
STL
-
SYD
2 stops27h 05m
American Airlines
Deal found 5/6$1,516
Sun 21/609:30
SYD
-
STL
2 stops27h 00m
United Airlines
Sun 16/816:40
STL
-
SYD
2 stops23h 20m
United Airlines
Deal found 5/6$1,520

Find flight deals to St. Louis

Find the latest flights to St. Louis in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 6 June 2026.

Return from

$1,435

One-way from

$892

Popular in

July

Cheapest in

September

Average price

$2,043
American Airlines
  • American Airlines
  • 22/6-17/8
  • 4 total stops
  • 45h 40m total
  • Sydney to St. Louis
Search Deals
Delta
  • Delta
  • 30/7
  • 2 total stops
  • 30h 26m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($147 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($45 potential savings vs. average return price).
Search Deals
Average for return flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to St. Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 6 June 2026.
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 - STL

SYDSTL

Sydney Kingsford Smith

Wed 5/8

09:30-16:33

2 stops22h 03m

Lambert-St Louis

Sat 29/8

16:40-07:00

2 stops47h 20m

$1,443

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 19/7

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Sun 26/7

06:00-07:00

2 stops34h 00m

$1,525

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 21/6

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Thu 20/8

08:42-06:55

1 stop31h 13m

$1,591
Fastest return journey

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 21/6

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Fri 21/8

16:40-07:00

2 stops23h 20m

$1,591

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 21/6

09:30-21:30

2 stops27h 00m

Lambert-St Louis

Sat 22/8

16:40-07:00

2 stops23h 20m

$1,591

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 22/7

09:10-16:40

2 stops22h 30m

Lambert-St Louis

Sun 26/7

06:37-07:05

1 stop33h 28m

$1,704

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 5/9

09:30-16:34

2 stops22h 04m

Lambert-St Louis

Tue 29/9

11:10-07:00

2 stops28h 50m

$1,763

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 5/9

09:10-22:59

1 stop28h 49m

Lambert-St Louis

Tue 29/9

06:30-07:05

1 stop33h 35m

$1,773

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 7/8

09:10-22:59

1 stop28h 49m

Lambert-St Louis

Tue 11/8

06:00-07:05

1 stop34h 05m

$1,802

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 25/6

09:30-23:57

2 stops29h 27m

Lambert-St Louis

Thu 20/8

12:59-07:00

2 stops27h 01m

$1,938

Flights are sorted by cheapest return flights first.

Deals found on 6/6

Showing 1-10 of 18 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
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.

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, Qantas Airways and American Airlines.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 6 June 2026.
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
1,044 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Overall

7.5

Comfort

7.5

Entertainment

7.2

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
1,044 reviews
Qantas Airways
7.5
Good
1,044 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Overall

7.5

Comfort

7.5

Entertainment

7.2

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
9,780 reviews
Qantas Airways
7.5
Good
1,044 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Overall

7.5

Comfort

7.5

Entertainment

7.2

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
11,652 reviews
Qantas Airways
7.5
Good
1,044 reviews
Check prices

Crew

8.1

Boarding

7.7

Food

7.0

Overall

7.5

Comfort

7.5

Entertainment

7.2

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, Air Canada is rated the highest out of the airlines that fly to St. Louis.

  • 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 (21 hours 57 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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