Cheap Flights to Colorado from ₩674,700

View ₩674,700 flight on Mon, Feb 2, 2026Opens in a new window

Popular airlines to Colorado

  • Frontier Airlines

    Frontier Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Alaska Airlines

    Alaska Airlines

  • JetBlue Airways

    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 ₩674,700 for one-way flights and ₩871,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Apr 2 - Tue, Apr 14
ICN
Seoul
DEN
Denver
₩871,300 Roundtrip, found 9 hours ago
₩871,300
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Thu, Apr 2 from Seoul to Denver, returning Tue, Apr 14, priced at ₩871,300 found 9 hours ago
Hawaiian Airlines
Mon, Feb 2 - Sat, Feb 28
ICN
Seoul
DEN
Denver
₩892,800 Roundtrip, just found
₩892,800
Roundtrip
just found
Select Hawaiian Airlines flight, departing Mon, Feb 2 from Seoul to Denver, returning Sat, Feb 28, priced at ₩892,800 just found
Alaska Airlines
Fri, Mar 13 - Fri, Mar 27
ICN
Seoul
DEN
Denver
₩892,800 Roundtrip, just found
₩892,800
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Mar 13 from Seoul to Denver, returning Fri, Mar 27, priced at ₩892,800 just found
American Airlines
Fri, Feb 6 - Tue, Feb 10
ICN
Seoul
DRO
Durango
₩911,300 Roundtrip, found 1 day ago
₩911,300
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Feb 6 from Seoul to Durango, returning Tue, Feb 10, priced at ₩911,300 found 1 day ago
Delta
Mon, Feb 2 - Sat, Feb 28
ICN
Seoul
DEN
Denver
₩930,600 Roundtrip, just found
₩930,600
Roundtrip
just found
Select Delta flight, departing Mon, Feb 2 from Seoul to Denver, returning Sat, Feb 28, priced at ₩930,600 just found
United
Fri, Dec 26 - Fri, Jan 30
ICN
Seoul
COS
Colorado Springs
₩972,600 Roundtrip, found 4 days ago
₩972,600
Roundtrip
found 4 days ago
Select United flight, departing Fri, Dec 26 from Seoul to Colorado Springs, returning Fri, Jan 30, priced at ₩972,600 found 4 days ago
United
Tue, Feb 17 - Fri, Feb 27
ICN
Seoul
DEN
Denver
₩972,600 Roundtrip, just found
₩972,600
Roundtrip
just found
Select United flight, departing Tue, Feb 17 from Seoul to Denver, returning Fri, Feb 27, priced at ₩972,600 just found
United
Thu, Jan 15 - Sun, Jan 18
ICN
Seoul
EGE
Vail
₩1,023,000 Roundtrip, found 1 day ago
₩1,023,000
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 15 from Seoul to Vail, returning Sun, Jan 18, priced at ₩1,023,000 found 1 day ago
Korean Air
Fri, Oct 9 - Tue, Oct 20
ICN
Seoul
DEN
Denver
₩1,030,600 Roundtrip, found 4 days ago
₩1,030,600
Roundtrip
found 4 days ago
Select Korean Air flight, departing Fri, Oct 9 from Seoul to Denver, returning Tue, Oct 20, priced at ₩1,030,600 found 4 days ago
American Airlines
Wed, Dec 24 - Mon, Dec 29
ICN
Seoul
ASE
Aspen
₩1,111,000 Roundtrip, found 6 days ago
₩1,111,000
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Dec 24 from Seoul to Aspen, returning Mon, Dec 29, priced at ₩1,111,000 found 6 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 ₩871,300. 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 ₩871,300 and reached a maximum of ₩1,279,400. For one-way journeys departing from Seoul (ICN), the cheapest seat during this time was only ₩674,700.
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 ₩871,300 and ₩1,279,400. 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, Apr 2 - Tue, Apr 14
ICN
Seoul
DEN
Denver
₩871,300 Roundtrip, found 9 hours ago
₩871,300
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Thu, Apr 2 from Seoul to Denver, returning Tue, Apr 14, priced at ₩871,300 found 9 hours ago
*Available to Expedia members.