$246+ Cheap flights from St. Louis

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — MEL
29 Jun — 6 Jul1
1 adult
1 adult, Economy, 0 bags

Find flights from St. Louis within your budget

 
Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 30 May 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

12:43-06:45

2 stops26h 02m

Melbourne

Tue 3/11

12:00-15:29

1 stop20h 29m

$1,511

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 15/7

05:10-08:15

2 stops36h 05m

Melbourne

Wed 22/7

09:30-23:57

2 stops29h 27m

$1,546
Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 12/7

19:23-08:15

1 stop21h 52m

Melbourne

Sun 19/7

10:55-18:17

1 stop22h 22m

$1,788

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 23/9

17:00-08:15

2 stops24h 15m

Sydney Kingsford Smith

Wed 7/10

10:30-18:14

2 stops23h 44m

$1,799

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Mon 3/8

17:13-10:20

2 stops26h 07m

Brisbane

Mon 31/8

08:00-18:10

2 stops25h 10m

$1,839

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 13/7

05:10-07:30

2 stops35h 20m

Melbourne

Mon 20/7

10:55-23:29

2 stops27h 34m

$1,846

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 7/9

15:32-08:00

2 stops25h 28m

Sydney Kingsford Smith

Mon 14/9

12:00-18:04

1 stop21h 04m

$1,871

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 27/10

16:15-13:30

3 stops54h 15m

Brisbane

Wed 11/11

06:10-15:30

3 stops49h 20m

$1,878

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Thu 11/6

16:48-07:00

2 stops23h 12m

Sydney Kingsford Smith

Mon 7/9

10:20-18:39

1 stop23h 19m

$1,923

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Mon 3/8

06:37-05:00

1 stop31h 23m

Brisbane

Mon 31/8

20:35-09:24

2 stops27h 49m

$1,959

Flights are sorted by cheapest return flights first.

Deals found on 26/5

Showing 1-10 of 39 resultsSorted by cheapest first
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Best time to book a flight from St. Louis

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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.

Travel insights for flights from St. Louis

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Direct flights from Missouri

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Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 30 May 2026.

  • What are the most popular destinations to fly to from St. Louis?

    For the current month, the most popular flights from St. Louis are Denver, Dallas/Fort Worth Airport, Atlanta. Denver, Cancún, Atlanta are the most popular locations from St. Louis year round.

  • What is the cheapest premium economy flight from St. Louis?

    Options for some of the cheapest premium economy flights from St. Louis we have found on Cheapflights are as follows:
    Fly from Lambert-St Louis to Houston George Bush Intcntl Airport starting at $5,150

  • What is the cheapest first class flight from St. Louis?

    If you’re looking to fly first-class from St. Louis to anywhere, put Charlotte on your list as prices start at $800 for this destination.

  • How does Cheapflights help users find flights from St. Louis?

    When you search for this flight from St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

  • Why should you use Cheapflights to find cheap flight tickets from St. Louis?

    Cheapflights helps you find that perfect flight from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from St. Louis with no change fees?

    Yes, we can. To see specific flights from St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

  • Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

    Yes, Cheapflights offers price alerts on flights from St. Louis so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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Fly with Cheapflights

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How does Cheapflights help users find flights from St. Louis?

When you search for this flight from St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis?

Cheapflights helps you find that perfect flight from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis with no change fees?

Yes, we can. To see specific flights from St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

Yes, Cheapflights offers price alerts on flights from St. Louis so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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