S$ 26 Cheap Flights from St. Louis to Denver (STL-DEN)

Cheap Flights from St. Louis to Denver

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Cheap Flights from St. Louis to Denver starting at CNY 26

We've found these cheap flights for you. You can book one-way or return flight tickets.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from St. Louis to Denver

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Cheapest Airlines flying from St. Louis to Denver

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From S$ 26

Delta Air Lines

From S$ 99

Sun Country Airlines

From S$ 126

United Airlines

From S$ 130

American Airlines

From S$ 131

Southwest Airlines

From S$ 199

Alaska Airlines

From S$ 236

ANA airlines

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Alternative Routes from St. Louis to Denver

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from St. Louis to Denver.

Cheapest
STL
20:04
2h 31m
Direct
DEN
21:35
St. Louis Lambert International Airport - Denver International Airport
Wed, May 1Frontier Airlines
S$ 26
STL
20:04
2h 31m
Direct
DEN
21:35
St. Louis Lambert International Airport - Denver International Airport
Wed, May 1Frontier Airlines
S$ 26
Find More Flights

Frequently Asked Questions

When to buy flight tickets from St. Louis (STL) to Denver (DEN) the cheapest?
Airlines adjust prices for flights from St. Louis to Denver based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from St. Louis (STL) to Denver (DEN) cost?
According to Trip.com's data, the lowest price is around S$ 352.
How long is a flight from St. Louis (STL) to Denver (DEN)?
It takes about 3 hours 20 minutes to fly from St. Louis (STL) to Denver (DEN).
What time does the earliest flight from St. Louis to Denver depart?
The earliest flight departs from St. Louis (STL) at 05:25 and arrives in Denver (DEN) at 12:35.
What time does the latest flight from St. Louis to Denver depart?
The latest flight departs from St. Louis (STL) at 20:15 and arrives in Denver (DEN) at 21:30.
What are the most popular airlines that fly from St. Louis (STL) to Denver (DEN)?
Airlines with flights from St. Louis (STL) to Denver (DEN): United Airlines, Frontier Airlines, Volaris and Southwest Airlines.
What's the most popular airline for direct flights from St. Louis (STL) to Denver (DEN)?
Frontier Airlines operates 1 direct flights from St. Louis (STL) to Denver (DEN).
How many airports in Denver?
There are 4 airports near Denver: Denver International Airport, Denver Arapahoe County Airport, Denver Buckley Angb and Rocky Mountain Metropolitan Airport.

How to find a cheap flight from St. Louis to Denver

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Denver. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Find cheapest flight ticket from St. Louis to Denver

Cheapest direct flight price	S$ 26
Cheapest return ticket price	S$ 49
Cheapest month	February
Peak season for travel	October
Flight distance	1,253.6km
Average flight time	3 hours 20 minutes
Popular airline	Delta Air Lines