$29+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
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 travelers. Please note that the information is based on the most recent updates available. Data last updated December 12, 2025.
Cheapest one-way flight | $38 |
|---|---|
Cheapest round-trip flight | $58 |
Cheapest airline | Delta |
Most popular destination | Denver Intl (DEN) |
Good round-trip deal | $123 or less |
Good one-way deal | $73 or less |
Find flights from St. Louis
Cheapest flights from St. LouisExplore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on December 12, 2025.
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 December 12, 2025.
This Super.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Super.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from St. Louis within your budget
Fly to
Route
Depart
Return
Price
St. LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Tue 1/6
5:11 pm-8:27 pm
Nonstop2h 16m
Orlando
Fri 1/9
5:20 am-2:48 pm
1 stop10h 28m
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 1/7
5:11 pm-9:49 pm
2 stops29h 38m
Denver Intl
Sat 1/10
6:50 am-10:02 am
Nonstop2h 12m
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 1/7
7:43 pm-9:15 pm
Nonstop2h 32m
Denver Intl
Wed 1/14
10:40 am-12:40 pm
2 stops25h 00m
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 1/7
7:43 pm-9:15 pm
Nonstop2h 32m
Denver Intl
Wed 1/14
9:20 pm-10:34 pm
3 stops24h 14m
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 1/7
11:23 am-4:44 pm
1 stop6h 21m
Denver Intl
Sat 1/10
12:42 pm-9:35 pm
1 stop7h 53m
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Fri 2/13
1:59 pm-3:35 pm
Nonstop2h 36m
Denver Intl
Mon 2/16
9:06 pm-6:51 am
2 stops32h 45m
St. LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Thu 1/15
1:35 pm-6:30 am
1 stop15h 55m
Orlando
Sun 1/18
7:20 am-9:11 am
Nonstop2h 51m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Tue 1/27
2:50 pm-9:00 pm
1 stop8h 10m
Las Vegas Harry Reid Intl
Fri 1/30
7:00 am-10:46 pm
1 stop13h 46m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Wed 2/11
6:10 am-11:05 am
1 stop6h 55m
Las Vegas Harry Reid Intl
Wed 2/18
5:10 pm-12:25 am
1 stop5h 15m
St. LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Thu 1/15
9:50 am-8:48 pm
2 stops9h 58m
Orlando
Sun 1/18
7:47 pm-6:51 am
1 stop12h 04m
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 December
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: Among all the travel providers offering deals on flights from St. Louis, CheapOair has been found to have the most accurate pricing. Users can find the same prices on deals on Cheapflights as CheapOair 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 CheapOair the highest out of those offering flight deals from St. Louis. CheapOair 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.
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.
When is the best time to book a flight from St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Las Vegas. Price data was last updated on December 5, 2025.
To ensure you get the cheapest price possible for a flight from St. Louis, you should look to book at least 20 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.
What is the cheapest month to book a flight from St. Louis?
Currently, March is the cheapest month in which you can book a flight from St. Louis (average of $106). Flying from St. Louis in July will prove the most costly (average of $195). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
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 December 6, 2025.
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 Saturday mornings when fares are usually the most expensive.
Which airlines fly from St. Louis?
For flights departing from St. Louis check dates and pricing for the following: Frontier, Southwest, American Airlines, United Airlines, Delta. These airlines depart to the following popular destinations: Las Vegas.
What are popular destinations to fly to from St. Louis?
Some of the most frequent flights departing from St. Louis everyday are: Chicago (814 flights per day), New York (213 flights per day), and Dallas (211 flights per day).
What is the cheapest place to fly to from St. Louis?
The cheapest city to fly to from St. Louis is Orlando, with prices starting at $38. Explore other affordable destinations below.
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 December 12, 2025. 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, and United Airlines from St. Louis. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Comfort
Crew
Boarding
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Comfort
Crew
Boarding
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Comfort
Crew
Boarding
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Comfort
Crew
Boarding
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Comfort
Crew
Boarding
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Comfort
Crew
Boarding
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN