Find flights
Airlines

$196+ 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 8/10. 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
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Cheapest airline

United Airlines
On average, United Airlines currently has the cheapest one-way flight from Lambert-St Louis (avg. price of $2,464).
Search Deals

Find flights from St. Louis

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 18 September 2025.

Wed 4/206:00STL - MEL
1 stop34h 30mQantas Airways
Thu 26/206:45MEL - STL
2 stops33h 23mQantas Airways
Deal found 17/9$1,431
Sun 16/1118:13STL - MEL
2 stops30h 02mQantas Airways
Wed 3/1212:00MEL - STL
1 stop28h 57mQantas Airways
Deal found 17/9$1,464
Wed 5/1115:59STL - SYD
2 stops46h 36mQantas Airways
Sun 23/1111:20SYD - STL
1 stop29h 22mQantas Airways
Deal found 18/9$1,511
Sat 28/214:45STL - BNE
2 stops26h 00mAir Canada
Tue 3/310:45BNE - STL
2 stops44h 44mAir Canada
Deal found 15/9$1,596
Sat 1/1117:29STL - BNE
1 stop22h 01mUnited Airlines
Sat 8/1111:40BNE - STL
1 stop20h 47mUnited Airlines
Deal found 17/9$1,602
Sat 22/1111:20STL - BNE
2 stops28h 10mUnited Airlines
Fri 26/1211:40BNE - STL
2 stops26h 15mUnited Airlines
Deal found 18/9$1,608
Sat 22/1118:13STL - BNE
1 stop20h 17mQantas Airways
Fri 26/1209:40BNE - STL
2 stops23h 30mQantas Airways
Deal found 16/9$1,623
Sat 28/214:45STL - BNE
2 stops26h 00mAir Canada
Wed 4/310:45BNE - STL
2 stops44h 44mAir Canada
Deal found 17/9$1,626
Sat 1/1117:09STL - MEL
1 stop43h 51mQantas Airways
Sat 8/1119:20MEL - STL
2 stops45h 22mQantas Airways
Deal found 17/9$1,659
Tue 11/1117:58STL - SYD
2 stops25h 32mFiji Airways
Tue 25/1114:10SYD - STL
2 stops22h 20mFiji Airways
Deal found 17/9$1,716
Fri 30/106:00STL - SYD
1 stop34h 00mQantas Airways
Mon 16/207:05SYD - STL
2 stops33h 03mQantas Airways
Deal found 17/9$1,724
Thu 5/217:54STL - MEL
2 stops25h 51mFiji Airways
Thu 26/214:30MEL - STL
2 stops24h 54mFiji Airways
Deal found 18/9$1,757

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 18 September 2025. 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

Wed 5/11

15:59-07:35

2 stops46h 36m

Sydney Kingsford Smith

Sun 23/11

11:20-23:42

1 stop29h 22m

$1,511

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 28/2

14:45-08:45

2 stops26h 00m

Brisbane

Tue 3/3

10:45-15:29

2 stops44h 44m

$1,596

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 1/11

17:29-06:30

1 stop22h 01m

Brisbane

Sat 8/11

11:40-16:27

1 stop20h 47m

$1,602

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 22/11

11:20-07:30

2 stops28h 10m

Brisbane

Fri 26/12

11:40-21:55

2 stops26h 15m

$1,608

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 22/11

18:13-06:30

1 stop20h 17m

Brisbane

Fri 26/12

09:40-17:10

2 stops23h 30m

$1,623

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 28/2

14:45-08:45

2 stops26h 00m

Brisbane

Wed 4/3

10:45-15:29

2 stops44h 44m

$1,626

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 29/10

06:39-09:00

1 stop34h 21m

Sydney Kingsford Smith

Sat 15/11

19:15-17:08

2 stops38h 53m

$1,761

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 22/11

16:05-08:45

2 stops48h 40m

Brisbane

Fri 26/12

10:45-15:29

2 stops44h 44m

$1,847

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 1/11

12:21-09:30

2 stops29h 09m

Melbourne

Sat 8/11

12:00-19:30

2 stops24h 30m

$1,899

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Wed 29/10

06:39-12:45

2 stops38h 06m

Sydney Kingsford Smith

Thu 13/11

14:00-22:29

2 stops25h 29m

$1,902

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 45 results
1
2
3
...
5

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, February is the cheapest month in which you can book a flight from St. Louis (average of $1,030). Flying from St. Louis in July will prove the most costly (average of $2,328). 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 $1,313

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
8,926 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sept 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sept 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights from Missouri

Book a direct flight from one of these other cities located in Missouri.
Direct flights from Kansas City
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 18 September 2025.

  • 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, Athens, 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 $5,549

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

    Currently, the cheapest month for flights from St. Louis is February. 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.

See more FAQs

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.