Cheap Flights to Colorado from ₩217,100

View ₩217,100 flight on Fri, Jul 3, 2026Opens in a new window

Popular airlines to Colorado

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Frontier Airlines

    Frontier Airlines

  • 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 ₩217,100 for one-way flights and ₩397,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Jul 3 - Tue, Jul 7
PDX
Portland
DEN
Denver
₩397,200 Roundtrip, found 15 hours ago
₩397,200
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jul 3 from Portland to Denver, returning Tue, Jul 7, priced at ₩397,200 found 15 hours ago
Delta
Fri, Jul 3 - Tue, Jul 7
PDX
Portland
DEN
Denver
₩427,800 Roundtrip, found 15 hours ago
₩427,800
Roundtrip
found 15 hours ago
Select Delta flight, departing Fri, Jul 3 from Portland to Denver, returning Tue, Jul 7, priced at ₩427,800 found 15 hours ago
United
Fri, Jul 3 - Tue, Jul 7
PDX
Portland
DEN
Denver
₩434,200 Roundtrip, found 15 hours ago
₩434,200
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jul 3 from Portland to Denver, returning Tue, Jul 7, priced at ₩434,200 found 15 hours ago
American Airlines
Sun, Jun 14 - Fri, Jul 3
PDX
Portland
DEN
Denver
₩727,500 Roundtrip, found 20 hours ago
₩727,500
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sun, Jun 14 from Portland to Denver, returning Fri, Jul 3, priced at ₩727,500 found 20 hours ago
American Airlines
Tue, Mar 3 - Mon, Mar 9
ICN
Seoul
GJT
Grand Junction
₩912,600 Roundtrip, found 21 hours ago
₩912,600
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Tue, Mar 3 from Seoul to Grand Junction, returning Mon, Mar 9, priced at ₩912,600 found 21 hours ago
American Airlines
Tue, Mar 24 - Tue, Apr 7
ICN
Seoul
DEN
Denver
₩912,600 Roundtrip, found 9 hours ago
₩912,600
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Mar 24 from Seoul to Denver, returning Tue, Apr 7, priced at ₩912,600 found 9 hours ago
Hawaiian Airlines
Fri, Mar 13 - Sat, Apr 4
ICN
Seoul
DEN
Denver
₩920,800 Roundtrip, found 1 day ago
₩920,800
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Fri, Mar 13 from Seoul to Denver, returning Sat, Apr 4, priced at ₩920,800 found 1 day ago
Alaska Airlines
Wed, Apr 22 - Wed, May 6
ICN
Seoul
DEN
Denver
₩920,800 Roundtrip, found 9 hours ago
₩920,800
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Wed, Apr 22 from Seoul to Denver, returning Wed, May 6, priced at ₩920,800 found 9 hours ago
United
Tue, Feb 17 - Mon, Mar 2
ICN
Seoul
COS
Colorado Springs
₩974,000 Roundtrip, found 3 days ago
₩974,000
Roundtrip
found 3 days ago
Select United flight, departing Tue, Feb 17 from Seoul to Colorado Springs, returning Mon, Mar 2, priced at ₩974,000 found 3 days ago
Korean Air
Mon, Mar 30 - Mon, May 4
ICN
Seoul
DEN
Denver
₩1,032,000 Roundtrip, found 4 days ago
₩1,032,000
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Mar 30 from Seoul to Denver, returning Mon, May 4, priced at ₩1,032,000 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 ₩397,200. 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 ₩397,200 and reached a maximum of ₩1,212,000. For one-way journeys departing from Portland (PDX), the cheapest seat during this time was only ₩217,100.
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 ₩397,200 and ₩1,212,000. 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
Tue, Mar 3 - Mon, Mar 9
ICN
Seoul
GJT
Grand Junction
₩912,600 Roundtrip, found 21 hours ago
₩912,600
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Tue, Mar 3 from Seoul to Grand Junction, returning Mon, Mar 9, priced at ₩912,600 found 21 hours ago
*Available to Expedia members.