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Cheap DEN to STL Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Denver to St. Louis route information

Origin Airport Denver Intl.
Destination Airport Lambert-St. Louis Intl.
Airlines Serving Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Flight Price $91
Distance 767 mi

Cheap DEN to STL Flights

  • Question : Which airline has the least delays from Denver to Saint Louis?
    Answer : Booking with ExpressJet means you will arrive to Saint Louis around the time you were supposed to. In fact, this timely airline has a 100% average for landing before the plane turns into a pumpkin. Of course, it never hurts to be prepared. If you’re on UPS, be sure to sign up for the delay notifications to stay up to date with your flight’s status.
  • Question : What is the cheapest day to fly?
    Answer : The cheapest day to fly from Denver to Saint Louis is on Wednesday. So, if you want to save a little cash on your next trip look for flights on that day.
  • Question : How much is a plane ticket to Saint Louis (STL) from Denver (DEN)?
    Answer : Prices can range from $81 to $715. Booking far in advance can usually help you get the cheapest rate. Prices are usually lower the further out you book.
  • Question : What day has the most flight time options?
    Answer : Monday has the greatest variety of flight times for Denver to Saint Louis with 29. However, with only 23 flight times, Saturday doesn't offer quite as many options when finding that perfect departure time.
  • Question : What is the cheapest day to fly to Saint Louis?
    Answer : As of Jun 24th, the best day for booking to Saint Louis (STL) is Jul 9th. A ticket will run you $81, which is 61% below the average price to book the same route.
  • Question : How many flights are there per day from Denver to Saint Louis?
    Answer : Depending on the day of the week, the number of flight times will change, but on average there are 26. That is higher than the national average of nine.
  • Question : What is the cheapest airline flying from Denver to Saint Louis?
    Answer : Ticket costs are hitting as high as $715 over the next three months when flying to STL from DEN. Check out Frontier Airlines, as customers have been booking flights at just $81.

May 23, 2019

Flight attendant was very nice.

Apr 20, 2019

I wish I had known in advance that baggage and seat assignment would cost twice as much as tickets.

Apr 6, 2019

The seats suck!!!

Jan 30, 2019

Very acceptable. Great bargain.

Jan 27, 2019

How do you get free upgrades??

Jan 3, 2019

Bag fee sucks but otherwise good flight

Nov 21, 2018

Everything was fine, but the de-icing process took a long time.

Oct 3, 2018

excellent service

Oct 2, 2018

No frills airlines that delivers efficient service, friendly crews and above adequate air transportation options.

Sep 27, 2018

Wheelchair was there at each stop and staff were great.