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St. Louis

$36+ Cheap flights from 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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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 August 1, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 9/9

4:05 pm-5:20 pm

Nonstop2h 15m

Denver Intl

Wed 9/16

6:35 am-9:35 am

Nonstop2h 00m

$157

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 9/1

2:50 pm-5:20 pm

1 stop3h 30m

Denver Intl

Tue 9/8

7:00 am-12:55 pm

1 stop4h 55m

$172

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 9/15

11:21 am-5:17 pm

1 stop5h 56m

Dallas/Fort Worth

Wed 9/16

8:15 am-1:23 pm

1 stop5h 08m

$183

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/25

12:52 pm-6:59 pm

1 stop6h 07m

Dallas/Fort Worth

Tue 9/1

8:10 am-2:33 pm

1 stop6h 23m

$183

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/25

9:15 am-3:50 pm

1 stop6h 35m

Dallas/Fort Worth

Wed 8/26

8:10 am-2:33 pm

1 stop6h 23m

$183

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 8/26

6:25 pm-10:48 pm

1 stop5h 23m

Denver Intl

Thu 8/27

6:00 am-2:33 pm

1 stop7h 33m

$192

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 9/30

2:25 pm-7:40 pm

1 stop6h 15m

Denver Intl

Fri 10/2

12:50 am-9:34 am

1 stop7h 44m

$192

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sun 9/6

6:30 am-7:45 am

Nonstop2h 15m

Denver Intl

Sun 9/6

10:55 am-3:50 pm

1 stop3h 55m

$197

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 9/3

11:00 am-5:17 pm

1 stop6h 17m

Dallas/Fort Worth

Tue 9/8

5:55 pm-11:42 pm

1 stop5h 47m

$200

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Thu 9/3

1:36 pm-3:00 pm

Nonstop2h 24m

Denver Intl

Sun 9/6

4:40 pm-10:59 pm

1 stop5h 19m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis in August
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: Among all the travel providers offering deals on flights from St. Louis, FlightHub has been found to have the most accurate pricing. Users can find the same prices on deals on Cheapflights as FlightHub about >95% of the time. This is based on searches for flights from St. Louis made on Cheapflights over the past month and is updated monthly.
  • Most trusted provider: In terms of trustworthiness, Cheapflights users rate FlightHub the highest out of those offering flight deals from St. Louis. FlightHub has a user feedback rating of 3 out of 3 stars (3 being the best) and has received the most positive sentiment from Cheapflights users searching for flights from St. Louis. This info is gathered from Cheapflights searches over the past month.

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 round-trip 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, January is the cheapest month in which you can book a flight from St. Louis (average of $253). Flying from St. Louis in June will prove the most costly (average of $391). 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?

For flights departing from St. Louis check dates and pricing for the following: Frontier, Southwest, United Airlines, Delta, American Airlines. These airlines depart to the following popular destinations: Las Vegas.

Southwest
Southwest
From $77
American Airlines
American Airlines
From $97
Frontier
Frontier
From $50
United Airlines
United Airlines
From $117

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

Some of the most frequent flights departing from St. Louis everyday are: Chicago (797 flights per day), Dallas (207 flights per day), and Atlanta (169 flights per day).

Chicago
Chicago
From $58
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $61
Denver Intl
Denver Intl
From $100
Dallas/Fort Worth
Dallas/Fort Worth
From $74

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

The cheapest city to fly to from St. Louis is Las Vegas Harry Reid Intl, with prices starting at $50. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $50
Chicago
Chicago
From $58
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $61
Dallas/Fort Worth
Dallas/Fort Worth
From $74

When is the best time to book a flight from St. Louis?

To ensure you get the cheapest price possible for a flight from St. Louis, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

When is the cheapest time to fly from St. Louis?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Las Vegas. Price data was last updated on July 25, 2026.

Those who are seeking the cheapest fare on flights departing from St. Louis would be wise to consider leaving during Monday evenings when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Thursday mornings when fares are usually the most expensive.

Airline reviews for flights from St. Louis

Read reviews and ratings of airlines operating flights from St. Louis. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your St. Louis travel. Please note that the reviews are sourced from user searches and were last updated on August 1, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from St. Louis. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,229 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,497 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,062 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,845 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Frontier
5.6
Fair
2,740 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Browse thousands of different options on Cheapflights for your next trip

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Popular international destinations from St. Louis

The most popular international flight routes departing from St. Louis we’ve come across at this time.
Flights from St. Louis to Cancún
Flights from St. Louis to Punta Cana

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 August 1, 2026.

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

    This month, the top selected destinations from St. Louis are Denver, Atlanta, Boston. Throughout the year, Denver, Cancún, Atlanta are some of the top choices made by users flying from St. Louis.

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

    Users have flown out of St. Louis for as low as $50 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for $736 to fly from St. Louis.

  • What are the cheapest airlines flying from St. Louis to anywhere?

    Over the past few days, we've found that Frontier, Southern / Mokulele, and Southwest have the cheapest prices from St. Louis. Frontier flights from St. Louis to Atlanta Hartsfield-Jackson ($50), Southern / Mokulele flights from St. Louis to Nashville Intl ($66), and Southwest flights from St. Louis to Albuquerque ($77).

  • 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 Orlando Airport starting at $416
    Fly from Lambert-St Louis to Las Vegas starting at $484
    Fly from Lambert-St Louis to Cancún starting at $590
    Fly from Lambert-St Louis to New York LaGuardia Airport starting at $669

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

    If you’re looking for a cheap first-class flight from St. Louis, consider Orlando. Prices start at $220 so you can fly first-class even on a budget.

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

    January is currently the cheapest month to fly from St. Louis. At this moment in time June is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

  • Where are the cheapest places to fly to from St. Louis?

    Check out the cheapest flights from St. Louis to embark to:
    Fly from St. Louis to Atlanta from $80 round trip
    Fly from St. Louis to Denver from $82 round trip
    Fly from St. Louis to Las Vegas from $100 round trip
    Fly from St. Louis to Minneapolis from $117 round trip
    Fly from St. Louis to Chicago from $117 round trip

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