$306+ 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 24/6. 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
6 Jul — 13 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 6 June 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

Wed 1/7

06:01-08:15

2 stops35h 14m

Melbourne

Tue 7/7

10:10-18:17

2 stops47h 07m

$1,573

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 27/10

18:51-06:30

1 stop20h 39m

Brisbane

Wed 11/11

09:15-16:40

1 stop23h 25m

$1,838

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 16/8

15:35-07:00

2 stops24h 25m

Sydney Kingsford Smith

Mon 24/8

10:20-18:39

1 stop23h 19m

$1,877

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 30/6

13:13-07:00

2 stops26h 47m

Sydney Kingsford Smith

Tue 7/7

09:30-18:13

2 stops23h 43m

$1,884

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 18/7

19:23-08:15

1 stop21h 52m

Melbourne

Sat 25/7

06:00-18:17

2 stops27h 17m

$1,939

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 8/8

19:23-06:55

1 stop20h 32m

Sydney Kingsford Smith

Sun 16/8

10:20-18:39

1 stop23h 19m

$1,946

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 13/10

06:30-09:45

2 stops35h 15m

Sydney Kingsford Smith

Wed 18/11

14:05-16:40

1 stop19h 35m

$1,962

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 23/9

17:00-06:55

1 stop22h 55m

Sydney Kingsford Smith

Wed 7/10

13:00-18:14

1 stop21h 14m

$1,981

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 3/7

15:22-06:55

2 stops24h 33m

Sydney Kingsford Smith

Fri 10/7

10:20-18:17

1 stop22h 57m

$2,004

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 15/7

10:20-08:15

2 stops30h 55m

Melbourne

Wed 22/7

09:30-20:43

2 stops26h 13m

$2,011

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 47 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 6 June 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, Atlanta, Cancún. 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 $5,217

  • 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 $810 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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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