Cheap Flights to Colorado from ₩683,900

View ₩683,900 flight on Fri, Feb 20, 2026Opens in a new window

Popular airlines to Colorado

  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • Southwest Airlines

  • Alaska Airlines

  • JetBlue Airways

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How much is the cheapest flight to Colorado?

Prices were available within the past 7 days and start at ₩683,900 for one-way flights and ₩866,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Feb 19 - Fri, Mar 6
ICN
Seoul
DEN
Denver
₩866,800 Roundtrip, found 4 days ago
₩866,800
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Feb 19 from Seoul to Denver, returning Fri, Mar 6, priced at ₩866,800 found 4 days ago
American Airlines
Fri, Feb 20 - Wed, Mar 4
ICN
Seoul
COS
Colorado Springs
₩1,217,900 Roundtrip, found 3 hours ago
₩1,217,900
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Feb 20 from Seoul to Colorado Springs, returning Wed, Mar 4, priced at ₩1,217,900 found 3 hours ago
Delta
Mon, Feb 23 - Mon, Mar 2
ICN
Seoul
COS
Colorado Springs
₩1,331,800 Roundtrip, found 2 days ago
₩1,331,800
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Feb 23 from Seoul to Colorado Springs, returning Mon, Mar 2, priced at ₩1,331,800 found 2 days ago
Hawaiian Airlines
Thu, Feb 26 - Tue, Mar 3
ICN
Seoul
DEN
Denver
₩1,339,600 Roundtrip, found 3 days ago
₩1,339,600
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Thu, Feb 26 from Seoul to Denver, returning Tue, Mar 3, priced at ₩1,339,600 found 3 days ago
Air Canada
Mon, Feb 23 - Mon, Mar 2
ICN
Seoul
COS
Colorado Springs
₩1,363,600 Roundtrip, found 2 days ago
₩1,363,600
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Feb 23 from Seoul to Colorado Springs, returning Mon, Mar 2, priced at ₩1,363,600 found 2 days ago
Alaska Airlines
Mon, May 18 - Mon, Jun 8
ICN
Seoul
DEN
Denver
₩1,565,900 Roundtrip, found 1 day ago
₩1,565,900
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, May 18 from Seoul to Denver, returning Mon, Jun 8, priced at ₩1,565,900 found 1 day ago
United
Wed, Apr 8 - Wed, Apr 22
ICN
Seoul
COS
Colorado Springs
₩1,574,600 Roundtrip, found 2 days ago
₩1,574,600
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 8 from Seoul to Colorado Springs, returning Wed, Apr 22, priced at ₩1,574,600 found 2 days ago
Korean Air
Tue, Apr 7 - Wed, Apr 15
ICN
Seoul
DEN
Denver
₩1,689,800 Roundtrip, found 1 day ago
₩1,689,800
Roundtrip
found 1 day ago
Select Korean Air flight, departing Tue, Apr 7 from Seoul to Denver, returning Wed, Apr 15, priced at ₩1,689,800 found 1 day ago
American Airlines
Tue, Feb 24 - Sat, Feb 28
ICN
Seoul
GJT
Grand Junction
₩1,857,900 Roundtrip, found 4 hours ago
₩1,857,900
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Feb 24 from Seoul to Grand Junction, returning Sat, Feb 28, priced at ₩1,857,900 found 4 hours ago
Singapore Airlines
Wed, Mar 11 - Sat, Apr 4
ICN
Seoul
DEN
Denver
₩1,997,000 Roundtrip, found 4 days ago
₩1,997,000
Roundtrip
found 4 days ago
Select Singapore Airlines flight, departing Wed, Mar 11 from Seoul to Denver, returning Sat, Apr 4, priced at ₩1,997,000 found 4 days ago

About Colorado

Expedia offers flights to Colorado to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Colorado or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

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 ₩866,800. 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 ₩866,800 and reached a maximum of ₩1,997,000. For one-way journeys departing from Seoul (ICN), the cheapest seat during this time was only ₩683,900.
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.

When is the cheapest time to fly to Colorado?
Jet off on a Tuesday to increase your chances of bagging the cheapest deal to Colorado. Mondays are usually the next most affordable day to depart. Saturday is typically the costliest day to fly anywhere.
How much is a plane ticket to Colorado?
In the last seven days, fares ranged between ₩866,800 and ₩1,997,000. 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 60ºF to 80ºF. 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.

Trending flights to Colorado

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

American Airlines
Thu, Feb 19 - Fri, Mar 6
ICN
Seoul
DEN
Denver
₩866,800 Roundtrip, found 4 days ago
₩866,800
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Feb 19 from Seoul to Denver, returning Fri, Mar 6, priced at ₩866,800 found 4 days ago
*Available to Expedia members.