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$199+ 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 20/4. 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
9 Mar — 16 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from St. Louis

Discover essential information about flights departing from St. Louis, including flight schedules, destinations, airlines operating at the St. Louis airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 7 February 2026.

Good round-trip deal

$254 or less
Price to beat on a round-trip flight from Lambert-St Louis.
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Find flights from St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 7 February 2026.

Sun 24/513:00
STL
-
BNE
2 stops27h 05m
Air Canada
Mon 8/610:00
BNE
-
STL
2 stops25h 05m
Air Canada
Deal found 4/2$1,286
Tue 3/318:18
STL
-
SYD
2 stops33h 32m
Qantas Airways
Tue 10/311:20
SYD
-
STL
1 stop28h 38m
Qantas Airways
Deal found 4/2$1,292
Mon 9/318:50
STL
-
SYD
2 stops34h 00m
Qantas Airways
Mon 16/311:20
SYD
-
STL
1 stop28h 38m
Qantas Airways
Deal found 5/2$1,294
Mon 23/318:50
STL
-
SYD
2 stops34h 00m
Qantas Airways
Mon 30/318:50
SYD
-
STL
1 stop21h 08m
Qantas Airways
Deal found 6/2$1,305
Thu 26/206:38
STL
-
SYD
2 stops45h 12m
Qantas Airways
Thu 5/317:45
SYD
-
STL
1 stop23h 14m
Qantas Airways
Deal found 5/2$1,319
Tue 17/206:38
STL
-
BNE
1 stop30h 22m
Qantas Airways
Thu 19/218:30
BNE
-
STL
2 stops36h 58m
Qantas Airways
Deal found 4/2$1,329
Wed 4/318:18
STL
-
SYD
2 stops33h 32m
Qantas Airways
Wed 11/311:20
SYD
-
STL
1 stop28h 38m
Qantas Airways
Deal found 4/2$1,329
Sat 23/513:00
STL
-
BNE
2 stops51h 05m
Air Canada
Fri 5/610:00
BNE
-
STL
2 stops49h 05m
Air Canada
Deal found 5/2$1,342
Fri 6/306:38
STL
-
SYD
1 stop33h 22m
Qantas Airways
Fri 13/317:50
SYD
-
STL
2 stops38h 07m
Qantas Airways
Deal found 4/2$1,520
Tue 24/318:08
STL
-
MEL
2 stops46h 12m
Qantas Airways
Tue 31/309:45
MEL
-
STL
1 stop30h 13m
Qantas Airways
Deal found 6/2$1,547
Fri 6/311:46
STL
-
BNE
2 stops28h 29m
Qantas Airways
Fri 13/308:40
BNE
-
STL
1 stop21h 48m
Qantas Airways
Deal found 6/2$1,551
Wed 20/507:30
STL
-
SYD
2 stops32h 50m
Air Canada
Mon 25/509:20
SYD
-
STL
2 stops41h 46m
Air Canada
Deal found 4/2$1,586

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 7 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Melbourne

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 23/3

18:50-20:50

2 stops34h 00m

Sydney Kingsford Smith

Mon 30/3

18:50-23:58

1 stop21h 08m

$1,305

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 17/2

06:38-05:00

1 stop30h 22m

Brisbane

Thu 19/2

18:30-15:28

2 stops36h 58m

$1,329

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 23/5

13:00-07:05

2 stops51h 05m

Brisbane

Fri 5/6

10:00-20:05

2 stops49h 05m

$1,342

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sun 24/5

14:20-11:30

3 stops30h 10m

Brisbane

Mon 8/6

10:00-20:05

2 stops25h 05m

$1,430

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 6/3

06:38-09:00

1 stop33h 22m

Sydney Kingsford Smith

Fri 13/3

17:50-15:57

2 stops38h 07m

$1,520

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 24/3

18:08-08:20

2 stops46h 12m

Melbourne

Tue 31/3

09:45-23:58

1 stop30h 13m

$1,547

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 6/3

11:46-08:15

2 stops28h 29m

Brisbane

Fri 13/3

08:40-15:28

1 stop21h 48m

$1,551

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 20/5

07:30-07:20

2 stops32h 50m

Sydney Kingsford Smith

Mon 25/5

09:20-12:06

2 stops41h 46m

$1,586

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 6/3

18:05-08:45

2 stops46h 40m

Brisbane

Fri 13/3

09:45-15:29

2 stops44h 44m

$1,600

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 20/5

07:30-07:20

1 stop32h 50m

Sydney Kingsford Smith

Mon 25/5

09:20-12:06

1 stop41h 46m

$1,627

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 40 results
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Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from St. Louis

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis?

Currently, August is the cheapest month in which you can book a flight from St. Louis (average of $1,540). Flying from St. Louis in July will prove the most costly (average of $2,225). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from St. Louis?

When flying from St. Louis check dates and pricing for the following: United Airlines. As it departs for the following popular destinations: Melbourne.

United Airlines
United Airlines
From $2,027

What are popular destinations to fly to from St. Louis?

St. Louis offers frequent flights to Chicago (631 flights per day), Atlanta (137 flights per day) and Detroit (124 flights per day).

Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $154

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Atlanta Hartsfield-Jackson, with prices starting at $154. Explore other affordable destinations below.

Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $154

Airline reviews for flights from St. Louis

Get insights into the airlines that provide service from 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 airline for your flight from St. Louis. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Get a feel of what it's like to fly with United Airlines from St. Louis 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.
United Airlines
7.4
Good
9,250 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,250 reviews
United Airlines
7.4
Good
9,250 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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Direct flights from Missouri

Book a direct flight from one of these other cities located in Missouri.
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Direct flights from Springfield

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 7 February 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, Cancún, Atlanta. Denver, Cancún, Atlanta are the most popular locations from St. Louis year round.

  • What is the cheapest flight from St. Louis to anywhere?

    Users have flown out of St. Louis for as low as $154 to Atlanta (prices may vary depending on the airline and departure time). On average, users have booked flights for $259 to fly from St. Louis.

  • 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 $5,303

  • 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 $823 for this destination.

  • What is the cheapest month to fly from St. Louis?

    Currently, the cheapest month for flights from St. Louis is August. The most expensive month for flights is July. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • 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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