St. Louis, MO STL to Denver, CO DEN flight with Frontier Airlines

The best way to find a cheap flight ticket from St. Louis, MO to Denver, CO is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from St. Louis, MO to Denver, CO will cost around $660 if you buy it on the day, but the cheapest tickets can be found for only $139.

Of the 67 flights that leave St. Louis, MO for Denver, CO onSat, Apr 04, 3 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Sat, Apr 04 the direct flights cover the 1279 km distance in an average of 3 h 34 m but if you time it right, some flights will get you there in just 2 h 33 m .

On Sat, Apr 04 the longest flights will take 5 h 5 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.