Cheap flights to Colorado

View €94 flight on Sat, 18 Apr 2026Opens in a new window

Popular airlines to Colorado

  • Frontier Airlines

  • American Airlines

  • United

  • Delta

  • Alaska Airlines

  • Southwest Airlines

  • JetBlue Airways

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Cheap round-trip flights to Colorado

Prices were available within the past 7 days and start at €94 for one-way flights and €199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 18 Apr - Mon, 20 Apr
STL
St. Louis
DEN
Denver
€199 Return, found 1 day ago
€199
Return
found 1 day ago
Select American Airlines flight, departing Sat, 18 Apr from St. Louis to Denver, returning Mon, 20 Apr, priced at €199 found 1 day ago
Delta
Sat, 18 Apr - Sat, 25 Apr
STL
St. Louis
DEN
Denver
€206 Return, found 1 day ago
€206
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Apr from St. Louis to Denver, returning Sat, 25 Apr, priced at €206 found 1 day ago
United
Thu, 14 May - Fri, 15 May
STL
St. Louis
DEN
Denver
€267 Return, found 4 days ago
€267
Return
found 4 days ago
Select United flight, departing Thu, 14 May from St. Louis to Denver, returning Fri, 15 May, priced at €267 found 4 days ago
American Airlines
Sun, 29 Mar - Sat, 4 Apr
STL
St. Louis
EGE
Vail
€268 Return, found 1 day ago
€268
Return
found 1 day ago
Select American Airlines flight, departing Sun, 29 Mar from St. Louis to Vail, returning Sat, 4 Apr, priced at €268 found 1 day ago
Delta
Sun, 26 Apr - Sun, 3 May
STL
St. Louis
COS
Colorado Springs
€359 Return, found 3 days ago
€359
Return
found 3 days ago
Select Delta flight, departing Sun, 26 Apr from St. Louis to Colorado Springs, returning Sun, 3 May, priced at €359 found 3 days ago
Icelandair
Fri, 17 Apr - Tue, 21 Apr
DUB
Dublin
DEN
Denver
€422 Return, found 2 days ago
€422
Return
found 2 days ago
Select Icelandair flight, departing Fri, 17 Apr from Dublin to Denver, returning Tue, 21 Apr, priced at €422 found 2 days ago
British Airways
Tue, 28 Apr - Tue, 5 May
DUB
Dublin
DEN
Denver
€454 Return, found 1 day ago
€454
Return
found 1 day ago
Select British Airways flight, departing Tue, 28 Apr from Dublin to Denver, returning Tue, 5 May, priced at €454 found 1 day ago
Aer Lingus
Fri, 1 May - Sat, 16 May
DUB
Dublin
DEN
Denver
€466 Return, just found
€466
Return
just found
Select Aer Lingus flight, departing Fri, 1 May from Dublin to Denver, returning Sat, 16 May, priced at €466 just found
Iberia
Thu, 9 Apr - Sun, 19 Apr
DUB
Dublin
DEN
Denver
€471 Return, found 2 hours ago
€471
Return
found 2 hours ago
Select Iberia flight, departing Thu, 9 Apr from Dublin to Denver, returning Sun, 19 Apr, priced at €471 found 2 hours ago
KLM
Fri, 1 May - Mon, 4 May
DUB
Dublin
DEN
Denver
€527 Return, found 2 days ago
€527
Return
found 2 days ago
Select KLM flight, departing Fri, 1 May from Dublin to Denver, returning Mon, 4 May, priced at €527 found 2 days ago

Trending flights to Colorado

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 17 Apr - Tue, 21 Apr
DUB
Dublin
DEN
Denver
€422 Return, found 2 days ago
€422
Return
found 2 days ago
Select Icelandair flight, departing Fri, 17 Apr from Dublin to Denver, returning Tue, 21 Apr, priced at €422 found 2 days ago

Frequently asked questions

How do I find cheap flights to Colorado that have flexible change policies?
We get that things can change in a flash, so booking a flexible ticket with Expedia is always a smart move. Simply click on "No change fee" under the "Flexible change policies" filter. Your low-cost, flexible flight to Colorado is only a few clicks away.
Which airlines fly to Colorado?
Pack your bags and take your pick of these well-known airlines that have flights into or near Colorado:

  • United Airlines - 13,862 flights to or near Colorado each month, including 13,033 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6,604 flights to or near Colorado each month, including 6,339 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1,967 flights to or near Colorado each month, including 1,967 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to Colorado?
One of the best ways to bag cheap tickets to Colorado is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It'll bring up the cheapest prices for nearby days. The best price for a flight to Colorado in the last seven days was €199. Booking ahead will usually help you get an even bigger bargain.
How much is a flight to Colorado?
In the last seven days, return tickets to Colorado sold from just €199 and reached a maximum of €603. For one-way journeys departing from St. Louis (STL), the cheapest seat during this time was only €94.
What are the most popular airports to fly into in Colorado?
Cruise into one of these busy Colorado airports and you'll be in the perfect position to discover all that this fantastic region has to offer:

  • Denver Intl. Airport (DEN) - 24,249 flights per month.
  • Colorado Springs Airport (COS) - 889 flights per month.
  • Pitkin County Airport (ASE) - 534 flights per month.

How much is a plane ticket to Colorado?
In the last seven days, fares ranged between €199 and €603. Have a look at our amazing deals to Colorado, make a booking and then get ready for your getaway!
What is the best time to go to Colorado?
Denver, Colorado's most prominent city, is an awesome location to visit at anytime. Not a big fan of cooler weather? Then venture here from June 20 onward in summer, when temperatures fluctuate from 16ºC to 27ºC. May, July and August is when Denver is at its liveliest.
What months are the cheapest to book a flight to Colorado?
A cheap month to bag a fabulous deal to Colorado is February, while prices are at a premium in December. Try to avoid this month if you'd like to save money.

Book with confidence

About Colorado

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