Cheap flights from Denver to St Louis (DEN - STL)

Flight FAQs

From Denver to St Louis

Are flight prices decreasing from Denver to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Denver and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Denver Intl to Lambert-St Louis to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. Some of the new policies that have been implemented to accommodate travelers flying from Denver Intl to Lambert-St Louis are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Denver Intl to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Denver Intl to Lambert-St Louis that may be offering flexible cancellation policies are Frontier, United Airlines, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Denver to St Louis for under $100 on Cheapflights?

Yes, there are multiple flights from Denver to St Louis for under $100. The cheapest flight booked recently is on Frontier for just $49, but on average you can expect to pay $82.

Are there nonstop flights from Denver to St Louis for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Denver to St Louis under $100. A good price for a nonstop flight from Denver to St Louis is less than $101.

Are there last-minute flights available from Denver to St Louis for under $100?

There are currently 20+ open flights from Denver to St Louis within the next 7 days for less than $100.

What days are nonstop flights available from Denver to St Louis?

You can find nonstop flights on the following days: Thursday.

How popular is this flight route?

Within the past month, 130 users have taken a look at flights from Denver Intl to Lambert-St Louis.

How many flights depart from Denver to St Louis on average per day?

Travelers can expect 1 flight from Denver Intl to Lambert-St Louis on average per day.
Morning (6am - Noon) - 100% of flight departures

Does it rain more in Denver or St Louis?

In Denver, there will be less rainfall in Denver compared to St Louis over the next 5 days.

Is Denver weather warmer or cooler than St Louis?

We forecast the temperature to be around the 90 °F's in July, on average. The temperature in St Louis is generally the same as in Denver. Book flights in a timely manner in correlation to your departure date.

How long is the flight from Denver to St Louis?

Airlines like Frontier and American Airlines fly from Denver to St Louis in about 1h 58m. The time it takes to get you to your destination can typically vary by up to 2h 53m. Airlines will cover a distance of 772 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Denver to St Louis round-trip?

Frontier, at $49, was found to be the cheapest airline from Denver to St Louis. An alternate airline flying to your destination would be American Airlines. Frontier is currently priced 70% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Denver to St Louis one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $24. United Airlines flights start at $49 while deals on American Airlines start at $53 one-way.