Cheap flights from Denver to St. Louis (DEN - STL) from $39

To fly from Denver to St. Louis, you need to book a flight from Denver Intl (DEN) to Lambert-St Louis (STL). Nonstop flights to Lambert-St Louis from Denver Intl take 2h 00m on average. When it comes time to book airfare, you have a few options: there are 20 outbound flights from Denver Intl to Lambert-St Louis offered by 3 different airlines.

Yes, there are multiple flights from Denver to St. Louis for under $100. The cheapest flight booked recently is on Frontier for just $47, but on average you can expect to pay $76.

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 $76.

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

Nonstop flights are available for this route on the following days: Friday.

Within the past month, 21 users have taken a look at flights from Denver Intl to Lambert-St Louis.

On average 2 flights depart from Denver to St. Louis per day.
Afternoon (Noon - 6pm) - 100% of flight departures

A quick flight from Denver to St. Louis can take about 2h 06m. Frontier provides one of the quickest options available for as low as $47. The distance from Denver to St. Louis is about 772 mi. Most flights are nonstop.

Our cheapest airline available from Denver to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $47 on this airline. Frontier is currently priced 71% below the average price you’ll pay for this route.

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $39. Users have also found prices from $88 and $99 on Delta and American Airlines, respectively.

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to St. Louis on time: Frontier (77%), United Airlines (75%), Air Canada (75%).

While on average a flight from Denver to St. Louis is generally $200, our data shows the cheapest flight currently is $48. When looking at the most popular route, (Denver Intl - Lambert-St Louis), you can expect to pay $114 for that flight.

Denver Intl Airport is DEN and Lambert-St Louis Airport is STL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

The amount of baggage you can bring on your Denver to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter Denver to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on Denver to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to St. Louis.

Yes. Cheapflights offers flight deals from Denver to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from Denver to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on Denver to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The Denver to St. Louis flight deals you see on this page were last updated on 6/5.

Consider American Airlines, Frontier or United Airlines when booking your flight. These represent the most popular airlines when flying from Denver to St. Louis.

Currently, September is the cheapest month in which you can book a flight from Denver to St. Louis (average of $318). Flying from Denver to St. Louis in July is currently the most expensive (average of $365). 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.