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$887+ 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
29 Jul — 5 Aug1
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 29 June 2026.

Wed 15/712:00
SYD
-
STL
1 stop19h 28m
American Airlines
Thu 3/906:00
STL
-
SYD
1 stop34h 05m
American Airlines
Deal found 25/6$1,397
Thu 16/709:10
SYD
-
STL
1 stop29h 49m
American Airlines
Tue 1/906:00
STL
-
SYD
1 stop34h 05m
American Airlines
Deal found 25/6$1,421
Mon 10/809:10
SYD
-
STL
1 stop28h 49m
American Airlines
Mon 17/815:32
STL
-
SYD
2 stops24h 33m
American Airlines
Deal found 26/6$1,422
Mon 13/717:50
SYD
-
STL
2 stops21h 08m
American Airlines
Tue 1/906:00
STL
-
SYD
1 stop34h 05m
American Airlines
Deal found 25/6$1,432
Tue 7/710:20
SYD
-
STL
1 stop22h 57m
United Airlines
Tue 1/916:40
STL
-
SYD
2 stops23h 15m
United Airlines
Deal found 25/6$1,447
Tue 7/709:30
SYD
-
STL
2 stops22h 03m
United Airlines
Wed 2/910:53
STL
-
SYD
2 stops29h 07m
United Airlines
Deal found 26/6$1,448
Mon 13/709:10
SYD
-
STL
1 stop29h 49m
American Airlines
Sat 5/906:00
STL
-
SYD
1 stop34h 05m
American Airlines
Deal found 25/6$1,492
Mon 10/809:15
SYD
-
STL
2 stops24h 40m
Delta
Mon 17/807:00
STL
-
SYD
2 stops32h 50m
Delta
Deal found 26/6$1,508
Wed 4/1114:05
SYD
-
STL
1 stop22h 25m
Qantas Airways
Tue 10/1107:00
STL
-
SYD
1 stop33h 00m
Qantas Airways
Deal found 28/6$1,511
Tue 7/710:20
SYD
-
STL
1 stop22h 57m
United Airlines
Fri 4/916:40
STL
-
SYD
2 stops23h 20m
United Airlines
Deal found 25/6$1,518
Wed 12/809:10
SYD
-
STL
2 stops26h 16m
American Airlines
Sun 16/812:45
STL
-
SYD
2 stops27h 20m
American Airlines
Deal found 28/6$1,551

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 29 June 2026.

Return from

$1,397

One-way from

$887

Popular in

July

Cheapest in

September

Average price

$2,102
American Airlines
  • American Airlines
  • 15/7-3/9
  • 2 total stops
  • 53h 33m total
  • Sydney to St. Louis
Search Deals
Delta
  • Delta
  • 30/7
  • 2 total stops
  • 29h 38m total
  • Sydney to St. Louis
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($138 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($61 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 29 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

Thu 9/7

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Tue 1/9

11:15-06:55

2 stops28h 40m

$1,448

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 9/7

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Wed 2/9

13:36-07:00

2 stops26h 24m

$1,448

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 10/7

10:20-18:13

2 stops22h 53m

Lambert-St Louis

Mon 31/8

16:40-06:55

2 stops23h 15m

$1,518
Fastest return journey

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 9/7

09:30-16:33

2 stops22h 03m

Lambert-St Louis

Fri 4/9

16:40-07:00

2 stops23h 20m

$1,518

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 9/7

09:30-17:27

2 stops22h 57m

Lambert-St Louis

Thu 3/9

15:13-07:00

2 stops24h 47m

$1,518

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 12/8

09:10-12:15

2 stops42h 05m

Lambert-St Louis

Sun 16/8

15:35-07:05

2 stops24h 30m

$1,551

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 9/7

09:15-16:46

2 stops22h 31m

Lambert-St Louis

Wed 26/8

17:34-06:50

2 stops46h 16m

$1,577

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 12/8

09:10-22:59

1 stop28h 49m

Lambert-St Louis

Sun 16/8

06:00-07:30

1 stop34h 30m

$1,618
Cheapest one-way

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 27/7

09:15-23:53

2 stops29h 38m

$887

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 8/7

09:15-22:15

2 stops28h 00m

$887

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 16 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 29 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
1,054 reviews
Check prices

Food

7.0

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Overall

7.5

Crew

8.1

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
1,054 reviews
Qantas Airways
7.5
Good
1,054 reviews
Check prices

Food

7.0

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Overall

7.5

Crew

8.1

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
9,895 reviews
Qantas Airways
7.5
Good
1,054 reviews
Check prices

Food

7.0

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Overall

7.5

Crew

8.1

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
11,771 reviews
Qantas Airways
7.5
Good
1,054 reviews
Check prices

Food

7.0

Comfort

7.4

Boarding

7.7

Entertainment

7.2

Overall

7.5

Crew

8.1

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 (22 hours 25 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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