Cheap Flights from St. Louis (STL) to Denver (DEN)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Denver Intl. Airport (DEN)

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Find the cheapest month to fly from St. Louis (STL) to Denver (DEN)

February is typically the cheapest month to fly

From ₩83,214 - ₩426,005 per traveler.

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to DIA airport?
Pack your bags, because round-trip flights from Lambert Field to DIA airport start from . That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Denver Intl. Airport (DEN)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Lambert Field to DIA airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for St. Louis Lambert International Airport to DIA airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert Field to Denver Intl. Airport (DEN)?
That new movie you've been eager to see will have to wait — the flight distance between Lambert Field and Denver Airport is only 1,250 kilometers. The captain will be instructing you to put your seat upright for landing before you know it.
Which airlines fly direct from STL to DEN?
Southwest Airlines (WN) is one of the top choices for many travelers flying between Lambert Field and DEN. Select from the 178 flights it operates on this route each month. You could also take a look at fares with United Airlines (UA). This carrier operates 121 flights a month between St. Louis and Denver.
Are St. Louis Lambert International Airport to Denver Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from St. Louis Lambert International Airport to Denver Airport can be hit-or-miss. It is possible to find a bargain, but then again, you could miss out entirely! If you'd prefer to play it safe and start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices so far in advance. Our top tip? Check back often as prices are updated frequently.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Denver Intl.
Distance
1228 km
Average flight time
1 hour 18 mins

Book with confidence

Book with confidence

St. Louis to Denver Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to Denver will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Denver.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to DEN flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to DEN with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

St. Louis to Denver Flights

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Explore a world of travel with Expedia

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