What airlines fly to Colorado?

Korean Air, Delta and Asiana Airlines are the top three most popular airlines that fly to Colorado from Incheon Intl Airport according to our data. Korean Air is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 5 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Incheon Intl to Colorado?

United Airlines, Japan Airlines, and American Airlines are the most popular carriers operating from Incheon Intl to Colorado

When did momondo last update prices for flights from Incheon Intl Airport to Colorado?

Prices for flights from Incheon Intl Airport to Colorado are refreshed on a daily basis.

How many operators does momondo search for flights from Incheon Intl Airport to Colorado?

There are 5 operators available for flights from Incheon Intl Airport to Colorado as of April 2026.

How old do you have to be to fly from Incheon Intl Airport to Colorado?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$433 Cheap Flights from Incheon Intl Airport to Colorado in 2026

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Find the cheapest flights from Incheon Intl Airport to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:50 pm - 10:11 pm

ICN

DEN

16h 21m

1 stop

6:00 am - 3:20 pm

DEN

ICN

18h 20m

1 stop

$656Asiana Airlines

Wed, Sep 16 - Mon, Sep 21

9:00 pm - 9:49 pm

ICN

DEN

15h 49m

1 stop

2:57 pm - 5:15 am

DEN

ICN

23h 18m

1 stop

$670Multiple Airlines

Tue, May 12 - Tue, May 19

7:35 pm - 1:39 pm

ICN

DEN

33h 04m

2 stops

6:00 am - 5:30 pm

DEN

ICN

20h 30m

1 stop

$678Alaska Airlines

Sun, May 17 - Mon, Aug 10

7:35 pm - 1:39 pm

ICN

DEN

33h 04m

2 stops

7:59 pm - 5:30 pm

DEN

ICN

54h 31m

2 stops

$690Alaska Airlines

Sun, May 17 - Mon, Aug 10

9:20 pm - 11:37 pm

ICN

DEN

17h 17m

1 stop

7:43 pm - 4:30 am

DEN

ICN

17h 47m

1 stop

$691Asiana Airlines

Sun, May 17 - Mon, Aug 10

9:00 pm - 9:49 pm

ICN

DEN

15h 49m

1 stop

8:50 pm - 4:55 am

DEN

ICN

17h 05m

1 stop

$695Multiple Airlines

Fri, May 1 - Sat, May 9

7:35 pm - 11:49 pm

ICN

DEN

19h 14m

2 stops

7:59 pm - 5:30 pm

DEN

ICN

30h 31m

2 stops

$697Alaska Airlines

Sun, May 24 - Thu, Jul 30

4:50 pm - 11:59 pm

ICN

COS

22h 09m

2 stops

1:30 pm - 3:00 pm

COS

ICN

34h 30m

2 stops

$1,182United Airlines

Wed, Jul 8 - Sat, Jul 18

4:50 pm - 10:06 pm

ICN

COS

20h 16m

2 stops

3:07 pm - 4:20 am

COS

ICN

22h 13m

2 stops

$1,225United Airlines

Wed, Jul 8 - Sat, Jul 18

4:40 pm - 10:46 pm

ICN

COS

21h 06m

2 stops

5:55 pm - 3:20 pm

COS

ICN

30h 25m

1 stop

$1,321Delta

Tue, Jul 14 - Sun, Aug 30

Asiana Airlines flights from Incheon Intl Airport to Colorado

Our best Asiana Airlines deals on Incheon Intl Airport to Colorado flight tickets

Asiana Airlines

Sep 16

ICN8:50 pmIncheon Intl

16h 21m

1 stop

DEN10:11 pmDenver Intl

Sep 21

DEN6:00 amDenver Intl

18h 20m

1 stop

ICN3:20 pmIncheon Intl

$656

Asiana Airlines

May 17

ICN9:20 pmIncheon Intl

17h 17m

1 stop

DEN11:37 pmDenver Intl

Aug 10

DEN7:43 pmDenver Intl

17h 47m

1 stop

ICN4:30 amIncheon Intl

$691

Asiana Airlines

Jun 23

ICN8:50 pmIncheon Intl

16h 54m

1 stop

DEN10:44 pmDenver Intl

Jul 14

DEN6:04 amDenver Intl

18h 16m

1 stop

ICN3:20 pmIncheon Intl

$769

Delta flights from Incheon Intl Airport to Colorado

Our best Delta deals on Incheon Intl Airport to Colorado flight tickets

Delta

Apr 3

ICN2:30 pmIncheon Intl

20h 27m

2 stops

DEN7:57 pmDenver Intl

May 2

DEN7:45 pmDenver Intl

29h 55m

1 stop

ICN4:40 pmIncheon Intl

$1,189

Delta

Jul 14

ICN4:40 pmIncheon Intl

21h 06m

2 stops

COS10:46 pmColorado Springs

Aug 30

COS5:55 pmColorado Springs

30h 25m

1 stop

ICN3:20 pmIncheon Intl

$1,321

Delta

Apr 4

ICN7:00 pmIncheon Intl

29h 28m

2 stops

DEN9:28 amDenver Intl

May 2

DEN6:27 pmDenver Intl

31h 23m

2 stops

ICN4:50 pmIncheon Intl

$1,322

momondo Fare Finder

Use the filters below to find and compare flights from Incheon Intl Airport to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Wed 9/16

8:50 pm-10:11 pm

1 stop16h 21m

Denver Intl

Mon 9/21

6:00 am-3:20 pm

1 stop18h 20m

$656

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 5/12

9:00 pm-9:49 pm

1 stop15h 49m

Denver Intl

Tue 5/19

2:57 pm-5:15 am

1 stop23h 18m

$670

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sun 5/17

7:35 pm-1:39 pm

2 stops33h 04m

Denver Intl

Mon 8/10

6:00 am-5:30 pm

1 stop20h 30m

$678

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sun 5/17

7:35 pm-1:39 pm

2 stops33h 04m

Denver Intl

Mon 8/10

7:59 pm-5:30 pm

2 stops54h 31m

$690

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sun 5/17

9:20 pm-11:37 pm

1 stop17h 17m

Denver Intl

Mon 8/10

7:43 pm-4:30 am

1 stop17h 47m

$691

Quickest round-trip

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/1

9:00 pm-9:49 pm

1 stop15h 49m

Denver Intl

Sat 5/9

8:50 pm-4:55 am

1 stop17h 05m

$695

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sun 5/24

7:35 pm-11:49 pm

2 stops19h 14m

Denver Intl

Thu 7/30

7:59 pm-5:30 pm

2 stops30h 31m

$697

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Wed 7/8

4:50 pm-11:59 pm

2 stops22h 09m

Colorado Springs

Sat 7/18

1:30 pm-3:00 pm

2 stops34h 30m

$1,182

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Wed 7/8

4:50 pm-10:06 pm

2 stops20h 16m

Colorado Springs

Sat 7/18

3:07 pm-4:20 am

2 stops22h 13m

$1,225

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Tue 7/14

4:40 pm-10:46 pm

2 stops21h 06m

Colorado Springs

Sun 8/30

5:55 pm-3:20 pm

1 stop30h 25m

$1,321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Incheon Intl Airport to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Colorado?

The month of January is, on average, the cheapest month to fly to Colorado from Incheon Intl Airport, with most prices found around $680. The month of December is another great option to travel to Colorado, with average flight prices from Incheon Intl Airport averaging around $703.

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $866 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Incheon Intl Airport for as low as $669 on momondo.

Can stopping save me money on Incheon Intl Airport to Colorado flights?

You could potentially save up to 51% on your flight if you consider stops on a Incheon Intl Airport to Colorado flight.

Cheap Incheon Intl Airport to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Colorado

Fastest flight time	15h 49m
Direct flights	None

The fastest flight from Incheon Intl Airport to Colorado takes 15h 49m

There are no direct flights from Incheon Intl Airport to Colorado. There are no popular flight routes from Incheon Intl Airport to Colorado.

Search flight deals

Frequently asked questions about flying from Incheon Intl Airport to Colorado

When did momondo last update prices for flights from Incheon Intl Airport to Colorado?
Prices for flights from Incheon Intl Airport to Colorado are refreshed on a daily basis.
How many operators does momondo search for flights from Incheon Intl Airport to Colorado?
There are 5 operators available for flights from Incheon Intl Airport to Colorado as of April 2026.
How old do you have to be to fly from Incheon Intl Airport to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Incheon Intl Airport to Colorado

Compare and see reviews for airlines that fly from Incheon Intl Airport to Colorado with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $589	Free Cancellation	Rating 7.4 9,533 reviews	Search United Airlines flights
Delta	PriceFrom $620	Free Cancellation	Rating 7.9 8,369 reviews	Search Delta flights
Air Canada	PriceFrom $686	Free Cancellation	Rating 7.1 10,880 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.1 508 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,203 reviews	Search Korean Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Colorado?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Colorado from Seoul.

Can I find flights from Seoul to Colorado with flexible booking policies on momondo?

Flights from Seoul to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seoul to Colorado?

Once you have performed a search for Seoul to Colorado flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seoul to Colorado right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seoul to Colorado flights. All you need is a valid email address and we will do the rest; it is that quick and easy.