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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
11 Jul — 18 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 11 June 2026.

Fri 7/809:10
SYD
-
STL
2 stops38h 13m
American Airlines
Tue 11/805:42
STL
-
SYD
1 stop34h 13m
American Airlines
Deal found 9/6$1,420
Thu 30/709:10
SYD
-
STL
1 stop29h 49m
American Airlines
Sun 9/815:35
STL
-
SYD
2 stops24h 30m
American Airlines
Deal found 8/6$1,423
Wed 26/809:10
SYD
-
STL
2 stops23h 55m
American Airlines
Wed 9/915:34
STL
-
SYD
2 stops24h 31m
American Airlines
Deal found 10/6$1,424
Thu 30/709:10
SYD
-
STL
1 stop29h 49m
Qantas Airways
Sun 9/806:00
STL
-
SYD
1 stop34h 05m
Qantas Airways
Deal found 8/6$1,430
Wed 26/809:10
SYD
-
STL
2 stops22h 31m
American Airlines
Sun 6/913:25
STL
-
SYD
2 stops27h 05m
American Airlines
Deal found 10/6$1,434
Thu 30/709:20
SYD
-
STL
3 stops48h 22m
Air Canada
Sun 9/812:10
STL
-
SYD
2 stops52h 10m
Air Canada
Deal found 8/6$1,436
Wed 17/610:20
SYD
-
STL
1 stop22h 57m
United Airlines
Sat 4/719:05
STL
-
SYD
2 stops44h 50m
United Airlines
Deal found 9/6$1,451
Fri 12/620:15
SYD
-
STL
2 stops36h 18m
Qantas Airways
Sun 14/606:35
STL
-
SYD
1 stop33h 30m
Qantas Airways
Deal found 8/6$1,461
Wed 26/809:10
SYD
-
STL
1 stop28h 49m
Qantas Airways
Wed 9/906:30
STL
-
SYD
1 stop33h 35m
Qantas Airways
Deal found 10/6$1,490
Wed 26/812:00
SYD
-
STL
1 stop19h 41m
Qantas Airways
Sun 6/918:45
STL
-
SYD
1 stop21h 10m
Qantas Airways
Deal found 10/6$1,491
Fri 28/809:10
SYD
-
STL
1 stop28h 49m
American Airlines
Mon 7/906:00
STL
-
SYD
1 stop34h 05m
American Airlines
Deal found 10/6$1,494

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 11 June 2026.

Return from

$1,420

One-way from

$892

Popular in

July

Cheapest in

September

Average price

$2,067
American Airlines
  • American Airlines
  • 7/8-11/8
  • 3 total stops
  • 72h 26m total
  • Sydney to St. Louis
Search Deals
United Airlines
  • United Airlines
  • 23/6
  • 1 total stop
  • 22h 57m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($206 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($63 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 11 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
Fastest return journey

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 30/7

09:10-16:28

2 stops22h 18m

Lambert-St Louis

Sun 9/8

15:35-07:05

2 stops24h 30m

$1,423

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 24/7

09:20-18:42

2 stops24h 22m

Lambert-St Louis

Fri 31/7

12:10-07:20

2 stops52h 10m

$1,674

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 7/8

09:20-14:02

2 stops43h 42m

Lambert-St Louis

Tue 11/8

08:55-07:20

2 stops31h 25m

$1,692

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 7/8

17:50-22:59

1 stop20h 09m

Lambert-St Louis

Tue 11/8

10:16-07:05

2 stops29h 49m

$1,749

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 1/9

17:50-22:59

1 stop20h 09m

Lambert-St Louis

Wed 9/9

06:30-07:05

1 stop33h 35m

$1,763

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

$1,810

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 30/6

09:30-10:07

2 stops39h 37m

Lambert-St Louis

Tue 14/7

19:23-06:55

1 stop20h 32m

$1,859
Cheapest one-way

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 30/7

09:15-08:46

2 stops38h 31m

$892
Fastest single journey

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 17/6

10:20-18:17

1 stop22h 57m

$895

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 18/6

10:20-18:17

1 stop22h 57m

$895

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 14 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 11 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
1,046 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

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
1,046 reviews
Qantas Airways
7.5
Good
1,046 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

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
9,808 reviews
Qantas Airways
7.5
Good
1,046 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

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
11,641 reviews
Qantas Airways
7.5
Good
1,046 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

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, Sydney Kingsford Smith offers the quickest one-way flight (20 hours 9 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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