Cheap flights from Saint Louis to Denver from $31

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Cheap Saint Louis - Denver flight offers

Find cheap flight tickets and last-minute flight deals from Saint Louis to Denver

Frontier Airlines
Tue, 06/09 (STL) Saint Louis -> (DEN) Denver
Direct
Frontier Airlines
Fri, 06/12 (DEN) Denver -> (STL) Saint Louis
Direct
Price found Yesterday
from $31
Southwest Airlines
Mon, 07/20 (STL) Saint Louis -> (DEN) Denver
Direct
Southwest Airlines
Sun, 07/26 (DEN) Denver -> (STL) Saint Louis
Direct
Price found 6 days ago
from $81
Frontier Airlines
Tue, 07/21 (STL) Saint Louis -> (DEN) Denver
Direct
Frontier Airlines
Mon, 07/27 (DEN) Denver -> (STL) Saint Louis
Direct
Price found 8 days ago
from $121
Frontier Airlines
Tue, 06/09 (STL) Saint Louis -> (DEN) Denver
Direct
Price found Yesterday
from $31
Frontier Airlines
Mon, 06/08 (STL) Saint Louis -> (DEN) Denver
Direct
Price found 8 days ago
from $41
Frontier Airlines
Tue, 06/09 (STL) Saint Louis -> (DEN) Denver
Direct
Frontier Airlines
Fri, 06/12 (DEN) Denver -> (STL) Saint Louis
Direct
Price found Yesterday
from $31
Southwest Airlines
Mon, 07/20 (STL) Saint Louis -> (DEN) Denver
Direct
Southwest Airlines
Sun, 07/26 (DEN) Denver -> (STL) Saint Louis
Direct
Price found 6 days ago
from $81
Frontier Airlines
Tue, 07/21 (STL) Saint Louis -> (DEN) Denver
Direct
Frontier Airlines
Mon, 07/27 (DEN) Denver -> (STL) Saint Louis
Direct
Price found 8 days ago
from $121

Info about flights from Saint Louis to Denver

Some useful info about flights from Saint Louis to Denver to help you plan your next trip

Best price last 15 days $31
Average flight duration 2h 20m
Cheapest month June
Average number of flights per week 24
First flight time 00:05
Last flight time 22:50

When is it best to fly from Saint Louis to Denver

Find out what is the best time of year to fly from Saint Louis to Denver

Jun $37
Jul $101
Aug $118
Sep $102
Oct $73
Nov $57
Dec $84
Jan $113
Feb $69
Mar $95
Apr $90
May $81
Most expensive month August
Average price $118
Cheapest month June
Average price $37
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

Top airlines on the route Saint Louis - Denver

Airlines providing flights to Denver from Saint Louis

American Airlines
American Airlines
Frontier Airlines
Frontier Airlines

Planning a flight from Saint Louis to Denver?

Flight prices from Saint Louis to Denver change depending on demand and time of booking.

The lowest fare seen in the past 15 days was $31.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

Airport options between Saint Louis and Denver

Even for routes around 768 mi, using different airports might affect flight cost and travel time.

  • Airports in Saint Louis: Only Saint Louis - Lambert operates here.
  • Airports in Denver: Denver is the only functioning airport.

Checking the average travel time to the airport can help you plan better. For some routes, changing your arrival or departure airport might also affect the price.

Flights from Saint Louis - Lambert to Denver

Plan smarter: flights from Saint Louis to Denver

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to United States also checked out: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Saint Louis to Denver.

How much does an airline ticket from Saint Louis to Denver cost?

The lowest price recorded in the last 15 days for a flight from Saint Louis to Denver is $31.

How far is Saint Louis from Denver?

Saint Louis is about 768 mi from Denver.

What are the airports in Denver?

Denver has one airport: Denver.

What are the airports in Saint Louis?

Saint Louis has one airport: Saint Louis - Lambert.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Las Vegas, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Saint Louis to Denver?

The best time to book a flight from Saint Louis to Denver is 1 month in advance, while the worst time is 29 weeks in advance.

What is the cheapest month to fly from Saint Louis to Denver?

The cheapest month to fly from Saint Louis to Denver is June.

What is the most expensive month to fly from Saint Louis to Denver?

The most expensive month to fly from Saint Louis to Denver is August.

What is the best day of the week to fly from Saint Louis to Denver?

For flights from Saint Louis to Denver Friday is on average the cheapest day to fly, while Monday is the most expensive day to fly.