Cheap flights from St. Louis to Denver (STL - DEN) from $39
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 5/17. 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 — DEN
May 3 — May 101
From?
To?
1 adult, Economy
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The best prices from Lambert-St Louis to Denver Intl are usually found in October or September, booked 55 days in advance, depart on a Tuesday or Saturday and return on a Wednesday
Cheap flight deals from St. Louis to Denver
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 28, 2024.
Popular in | December |
|---|---|
Cheapest in | October |
Round-trip from | $193 |
One-way from | $103 |
What is the cheapest day to fly round-trip from St. Louis to Denver?
Sunday flights are generally found to be more expensive for flights from St. Louis to Denver. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Denver.
How far in advance should I book a flight from St. Louis to Denver?
Find a great deal and save up to 63% by booking at least 56 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Denver within the next two weeks, with the cheapest ticket starting at $128.
What is the cheapest month to fly from St. Louis to Denver?
October can be a great time to fly to Denver from St. Louis with a flight ticket averaging about $155. Cheapflights users have found deals in the month of October for as cheap as $40. The most expensive prices can be found in the month of December.
When is the cheapest time to fly from St. Louis to Denver (STL - DEN)?
It’s optimal to fly from St. Louis to Denver in the evening. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight at noon.
Cheap Frontier flights from St. Louis to Denver
Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Denver. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Find some of the cheapest Frontier flights traveling from St. Louis to Denver. It's recommended that users confirm their flight details before booking.
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 6/196:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/28$57
Wed 10/28:00 pmSTL - DEN
Nonstop2h 28mFrontier
Sat 10/56:26 amDEN - STL
Nonstop2h 11mFrontier
Deal found 4/27$58
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/2110:00 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$67
Wed 5/158:04 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/197:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$68
Wed 5/228:04 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 5/296:26 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/28$72
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 6/1811:39 amDEN - STL
Nonstop2h 08mFrontier
Deal found 4/27$74
Mon 6/178:22 pmSTL - DEN
Nonstop2h 31mFrontier
Sat 6/226:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$77
Sat 5/118:04 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/1412:45 pmDEN - STL
Nonstop2h 05mFrontier
Deal found 4/27$78
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Mon 6/176:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$79
Cheap American Airlines flights from St. Louis to Denver
Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Denver. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Have a look at some of the cheapest available American Airlines flights departing from St. Louis and landing in Denver. Make sure to examine the flight information before completing your reservation.
Tue 8/205:37 amSTL - DEN
1 stop8h 07mAmerican Airlines
Mon 8/2611:59 pmDEN - STL
1 stop9h 05mAmerican Airlines
Deal found 4/27$179
Wed 8/212:38 pmSTL - DEN
1 stop5h 59mAmerican Airlines
Fri 8/234:26 pmDEN - STL
1 stop5h 54mAmerican Airlines
Deal found 4/27$195
Sat 10/57:37 amSTL - DEN
1 stop6h 07mAmerican Airlines
Mon 10/711:59 pmDEN - STL
1 stop9h 05mAmerican Airlines
Deal found 4/27$199
Thu 9/125:54 amSTL - DEN
1 stop4h 41mAmerican Airlines
Sat 9/144:26 pmDEN - STL
1 stop5h 54mAmerican Airlines
Deal found 4/28$200
Wed 5/225:21 amSTL - DEN
1 stop5h 22mAmerican Airlines
Sat 5/2510:38 amDEN - STL
1 stop7h 50mAmerican Airlines
Deal found 4/27$203
Wed 5/225:55 amSTL - DEN
1 stop8h 52mAmerican Airlines
Wed 5/2911:59 pmDEN - STL
1 stop8h 54mAmerican Airlines
Deal found 4/27$204
Wed 7/176:04 amSTL - DEN
1 stop10h 03mAmerican Airlines
Tue 7/237:12 amDEN - STL
1 stop9h 07mAmerican Airlines
Deal found 4/28$214
Wed 6/125:27 amSTL - DEN
1 stop5h 23mAmerican Airlines
Mon 6/1711:59 pmDEN - STL
1 stop7h 34mAmerican Airlines
Deal found 4/27$216
Thu 5/235:55 amSTL - DEN
1 stop4h 50mAmerican Airlines
Thu 5/3010:32 amDEN - STL
1 stop4h 45mAmerican Airlines
Deal found 4/28$223
Cheap St. Louis to Denver flights in April & May 2024
Find cheap flight options from St. Louis to Denver specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Prices were last updated on April 28, 2024.
These are some of the most attractive deals on flights from St. Louis to Denver in 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/2110:44 pmSTL - DEN
Nonstop2h 36mFrontier
Wed 5/226:26 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$57
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/2110:00 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$67
Wed 5/158:04 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/197:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$68
Wed 5/228:04 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 5/296:26 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$72
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/197:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$77
Sat 5/118:04 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/1412:45 pmDEN - STL
Nonstop2h 05mFrontier
Deal found 4/27$78
Tue 5/2110:44 pmSTL - DEN
Nonstop2h 36mFrontier
Thu 5/236:54 pmDEN - STL
Nonstop2h 12mFrontier
Deal found 4/27$86
Tue 5/2110:44 pmSTL - DEN
Nonstop2h 36mFrontier
Mon 5/276:26 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/28$87
Sun 5/1911:22 pmSTL - DEN
Nonstop2h 27mFrontier
Sun 5/267:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$88
St. Louis to Denver 2024 flight deals
Discover exclusive flight deals for travel between St. Louis and Denver in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
These are some of the most attractive deals on flights from St. Louis to Denver in 2024. More deals are always being added, so be sure to check back regularly.
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 6/196:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$57
Wed 10/28:00 pmSTL - DEN
Nonstop2h 28mFrontier
Sat 10/56:26 amDEN - STL
Nonstop2h 11mFrontier
Deal found 4/27$58
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/2110:00 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$67
Wed 5/158:04 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/197:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$68
Wed 5/228:04 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 5/296:26 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$72
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 6/1811:39 amDEN - STL
Nonstop2h 08mFrontier
Deal found 4/27$74
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/197:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$77
Sat 5/118:04 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/1412:45 pmDEN - STL
Nonstop2h 05mFrontier
Deal found 4/27$78
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Mon 6/176:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$79
Non-stop flights to Denver from St. Louis
Discover non-stop flight options from St. Louis to Denver. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Consider booking one of these non-stop flights heading from St. Louis to Denver. Select from other flights from St. Louis to Denver by using the search form above.
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 6/196:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/28$57
Wed 10/28:00 pmSTL - DEN
Nonstop2h 28mFrontier
Sat 10/56:26 amDEN - STL
Nonstop2h 11mFrontier
Deal found 4/27$58
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/2110:00 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$67
Wed 5/158:04 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/197:22 pmDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$68
Wed 5/228:04 pmSTL - DEN
Nonstop2h 31mFrontier
Wed 5/296:26 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/28$72
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 6/1811:39 amDEN - STL
Nonstop2h 08mFrontier
Deal found 4/27$74
Mon 6/178:22 pmSTL - DEN
Nonstop2h 31mFrontier
Sat 6/226:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$77
Sat 5/118:04 pmSTL - DEN
Nonstop2h 31mFrontier
Tue 5/1412:45 pmDEN - STL
Nonstop2h 05mFrontier
Deal found 4/27$78
Wed 6/128:02 pmSTL - DEN
Nonstop2h 31mFrontier
Mon 6/176:20 amDEN - STL
Nonstop2h 10mFrontier
Deal found 4/27$79
St. Louis to Denver flights leaving soon
Find last-minute flight options from St. Louis to Denver for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Consider one of these great deals we found on last-minute flights from St. Louis to Denver. Users should examine the flight details to ensure there are no surprises.
Mon 5/67:51 pmSTL - DEN
1 stop14h 09mFrontier
Wed 5/86:41 amDEN - STL
Nonstop2h 06mFrontier
Deal found 4/26$123
Mon 5/68:04 pmSTL - DEN
Nonstop2h 31mFrontier
Sun 5/1211:20 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$139
Mon 5/68:04 pmSTL - DEN
Nonstop2h 31mFrontier
Mon 5/136:41 amDEN - STL
Nonstop2h 06mFrontier
Deal found 4/27$159
Fri 5/35:35 pmSTL - DEN
Nonstop2h 28mFrontier
Sun 5/511:20 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$168
Mon 5/69:53 pmSTL - DEN
1 stop11h 51mFrontier
Sun 5/1211:20 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$177
Mon 5/68:04 pmSTL - DEN
Nonstop2h 31mFrontier
Mon 5/136:31 amDEN - STL
1 stop12h 40mFrontier
Deal found 4/27$196
Fri 5/37:51 pmSTL - DEN
1 stop27h 06mFrontier
Sun 5/511:20 amDEN - STL
Nonstop2h 09mFrontier
Deal found 4/27$204
Mon 5/69:53 pmSTL - DEN
1 stop11h 51mFrontier
Wed 5/83:09 pmDEN - STL
1 stop18h 09mFrontier
Deal found 4/26$206
Mon 5/67:51 pmSTL - DEN
1 stop16h 47mFrontier
Sun 5/1212:21 amDEN - STL
1 stop29h 52mFrontier
Deal found 4/27$235
One-way flights to Denver from St. Louis
Search for one-way flight options from St. Louis to Denver. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Users in need of a one-way flight from St. Louis to Denver can choose from these deals. Users can also find round-trip St. Louis to Denver flights by using the search form above.
Fri 5/178:45 pmSTL - DEN
Nonstop2h 31mFrontier
Deal found 4/27$39
Sun 5/1911:22 pmSTL - DEN
Nonstop2h 27mFrontier
Deal found 4/27$40
Tue 7/3010:32 pmSTL - DEN
Nonstop2h 29mFrontier
Deal found 4/27$45
Thu 5/3011:06 pmSTL - DEN
Nonstop2h 27mFrontier
Deal found 4/27$49
Thu 6/273:32 pmSTL - DEN
Nonstop2h 30mFrontier
Deal found 4/27$50
Thu 9/263:53 pmSTL - DEN
Nonstop2h 24mFrontier
Deal found 4/27$54
Fri 5/318:45 pmSTL - DEN
Nonstop2h 31mFrontier
Deal found 4/27$59
Sat 5/48:04 pmSTL - DEN
Nonstop2h 31mFrontier
Deal found 4/27$60
Wed 7/38:00 pmSTL - DEN
Nonstop2h 28mFrontier
Deal found 4/28$64
Find flights from St. Louis to Denver within your budget
Customize your flight search to find flights from St. Louis to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$57 - $179
Route
Depart
Return
Price
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Wed 6/12
Nonstop2h 31m
Denver Intl
Wed 6/19
Nonstop2h 10m
$57
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Wed 10/2
Nonstop2h 28m
Denver Intl
Sat 10/5
Nonstop2h 11m
$58
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Fri 5/17
Nonstop2h 31m
Denver Intl
Tue 5/21
Nonstop2h 09m
$67
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Wed 5/15
Nonstop2h 31m
Denver Intl
Sun 5/19
Nonstop2h 10m
$68
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Wed 5/22
Nonstop2h 31m
Denver Intl
Wed 5/29
Nonstop2h 10m
$72
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Wed 6/12
Nonstop2h 31m
Denver Intl
Tue 6/18
Nonstop2h 08m
$74
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Sun 6/2
1 stop22h 45m
Denver Intl
Wed 6/5
Nonstop2h 10m
$140
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Sat 6/1
1 stop6h 44m
Denver Intl
Tue 6/4
1 stop5h 46m
$176
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Tue 8/20
1 stop8h 07m
Denver Intl
Mon 8/26
1 stop9h 05m
$179
When is the best time to book a flight from St. Louis to Denver?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Denver. Price data was last updated on January 28, 2024.
Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
When is the cheapest time to fly from St. Louis to Denver?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Denver. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Denver flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Average price of flights to Denver by month
Plan your trip from St. Louis to Denver by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Denver is currently $51 while a round-trip flight costs $99. Price data was last updated on April 21, 2024.
Currently, December is the cheapest month in which you can book a flight from St. Louis to Denver (average of $193). Flying from St. Louis to Denver in June is currently the most expensive (average of $288). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
January
$220
February
$237
March
$269
April
$206
May
$229
June
$288
July
$282
August
$218
September
$214
October
$194
November
$198
December
$193
Temperature and rainfall in Denver by month
Plan your trip to Denver by taking into account the average temperature and rainfall totals by month.
DEN Temperature | 30.2 - 73.4 °F |
|---|
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated April 28, 2024.
Read through reviews of airlines operating flights from St. Louis to Denver, such as Frontier, American Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
9,110 reviews
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,110 reviews
9,110 reviews
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,932 reviews
9,110 reviews
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
11,221 reviews
9,110 reviews
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,844 reviews
9,110 reviews
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
656 reviews
9,110 reviews
Overall
8.1
Crew
8.6
Boarding
8.2
Comfort
7.9
Entertainment
7.3
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to DenverSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from St. Louis to Denver
Discover the top 4 airlines that operate flights from St. Louis to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 28, 2024.
Search flights from St. Louis to Denver by cabin class
Find flights from St. Louis to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from St. Louis to Denver
Find hourly flight availability from St. Louis to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 28, 2024.
| 6%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 31%of flight departures | Morning6 am to noon |
| 53%of flight departures | AfternoonNoon to 6 pm |
| 10%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Weekly flight availability from St. Louis to Denver
Explore weekly flight availability from St. Louis to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 28, 2024.
| Sunday | 13daily flights |
|---|---|
| Monday | 22daily flights |
| Tuesday | 20daily flights |
| Wednesday | 20daily flights |
| Thursday | 21daily flights |
| Friday | 21daily flights |
| Saturday | 12daily flights |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
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Why should you use Cheapflights to find cheap flight tickets from St. Louis to Denver?
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