What airlines fly to Colorado?

Korean Air, Asiana Airlines and Delta 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 47% 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 and Qatar Airways 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 September 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.

$518 Cheap Flights from Incheon Intl Airport to Colorado in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:00 pm - 11:43 pmICN Incheon Intl-DEN Denver Intl

20h 43m2 stops San Francisco Phoenix Sky Harbor Intl

9:21 am - 9:20 pmDEN Denver Intl-ICN Incheon Intl

20h 59m1 stop San Francisco

$981Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

5:45 pm - 11:08 pmICN Incheon Intl-DEN Denver Intl

20h 23m1 stop Vancouver Intl

8:15 am - 5:10 pmDEN Denver Intl-ICN Incheon Intl

16h 55m1 stop Vancouver Intl

$1,005Air Canada

Wed, Oct 21 - Thu, Nov 12

5:45 pm - 6:18 pmICN Incheon Intl-DEN Denver Intl

15h 33m1 stop Vancouver Intl

7:20 pm - 4:10 pmDEN Denver Intl-ICN Incheon Intl

29h 50m2 stops Edmonton Vancouver Intl

$1,005Air Canada

Tue, Oct 20 - Sun, Oct 25

7:45 pm - 9:46 amICN Incheon Intl-DEN Denver Intl

29h 01m1 stop San Francisco

9:21 am - 9:20 pmDEN Denver Intl-ICN Incheon Intl

19h 59m1 stop San Francisco

$1,018Multiple Airlines

Sun, Oct 25 - Sun, Nov 1

6:00 pm - 9:46 amICN Incheon Intl-DEN Denver Intl

30h 46m1 stop San Francisco

9:21 am - 9:20 pmDEN Denver Intl-ICN Incheon Intl

20h 59m1 stop San Francisco

$1,023Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

7:20 pm - 11:56 amICN Incheon Intl-DEN Denver Intl

31h 36m2 stops Seattle/Tacoma Intl Salt Lake City

5:25 am - 5:45 pmDEN Denver Intl-ICN Incheon Intl

21h 20m2 stops Salt Lake City Seattle/Tacoma Intl

$1,050Delta

Thu, Oct 22 - Thu, Oct 29

7:00 pm - 9:44 amICN Incheon Intl-DEN Denver Intl

29h 44m2 stops Seattle/Tacoma Intl Salt Lake City

3:40 pm - 5:45 pmDEN Denver Intl-ICN Incheon Intl

34h 05m2 stops Salt Lake City Seattle/Tacoma Intl

$1,050Delta

Mon, Oct 19 - Mon, Jan 11

6:55 pm - 6:13 pmICN Incheon Intl-DEN Denver Intl

15h 18m1 stop Vancouver Intl

8:15 am - 5:10 pmDEN Denver Intl-ICN Incheon Intl

16h 55m1 stop Vancouver Intl

$1,119Asiana Airlines

Mon, Nov 16 - Fri, Nov 27

6:00 pm - 9:58 pmICN Incheon Intl-COS Colorado Springs

19h 58m2 stops San Francisco Denver Intl

5:13 pm - 5:40 amCOS Colorado Springs-ICN Incheon Intl

20h 27m2 stops Denver Intl San Francisco

$1,161United Airlines

Mon, Feb 1 - Mon, Feb 15

6:00 pm - 9:58 pmICN Incheon Intl-COS Colorado Springs

19h 58m2 stops San Francisco Denver Intl

5:13 pm - 5:40 amCOS Colorado Springs-ICN Incheon Intl

20h 27m2 stops Denver Intl San Francisco

$1,162United Airlines

Mon, Feb 1 - Mon, Feb 15

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 pm - 11:47 pmICN Incheon Intl-DEN Denver Intl

19h 47m1 stop Seattle/Tacoma Intl

5:30 am - 4:50 pmDEN Denver Intl-ICN Incheon Intl

20h 20m2 stops Salt Lake City Seattle/Tacoma Intl

$1,219Delta

Sun, Sep 13 - Thu, Sep 17

7:20 pm - 7:40 pmICN Incheon Intl-DEN Denver Intl

15h 20m1 stop Salt Lake City

5:30 am - 4:50 pmDEN Denver Intl-ICN Incheon Intl

20h 20m2 stops Salt Lake City Seattle/Tacoma Intl

$1,219Delta

Sun, Sep 13 - Wed, Sep 16

4:50 pm - 11:42 pmICN Incheon Intl-DEN Denver Intl

21h 52m1 stop San Francisco

5:00 am - 3:00 pmDEN Denver Intl-ICN Incheon Intl

19h 00m1 stop San Francisco

$1,219United Airlines

Sun, Sep 13 - Thu, Sep 17

4:50 pm - 12:59 amICN Incheon Intl-DEN Denver Intl

23h 09m1 stop San Francisco

1:25 pm - 4:20 amDEN Denver Intl-ICN Incheon Intl

23h 55m2 stops Chicago O'Hare Intl San Francisco

$1,219United Airlines

Sun, Sep 13 - Tue, Sep 15

7:00 pm - 11:47 pmICN Incheon Intl-DEN Denver Intl

19h 47m1 stop Seattle/Tacoma Intl

10:45 am - 3:20 pmDEN Denver Intl-ICN Incheon Intl

37h 35m1 stop Salt Lake City

$1,219Delta

Sun, Sep 13 - Wed, Sep 16

4:50 pm - 11:42 pmICN Incheon Intl-DEN Denver Intl

21h 52m1 stop San Francisco

7:25 pm - 4:20 amDEN Denver Intl-ICN Incheon Intl

17h 55m1 stop San Francisco

$1,219United Airlines

Sun, Sep 13 - Tue, Sep 15

4:50 pm - 11:42 pmICN Incheon Intl-DEN Denver Intl

21h 52m1 stop San Francisco

9:09 pm - 4:20 amDEN Denver Intl-ICN Incheon Intl

16h 11m1 stop San Francisco

$1,219United Airlines

Sun, Sep 13 - Mon, Sep 14

7:35 pm - 12:20 pmICN Incheon Intl-DEN Denver Intl

31h 45m2 stops Seattle/Tacoma Intl San Diego

8:06 pm - 5:30 pmDEN Denver Intl-ICN Incheon Intl

30h 24m2 stops San Diego Seattle/Tacoma Intl

$1,261Alaska Airlines

Sun, Sep 13 - Wed, Sep 16

7:35 pm - 12:20 pmICN Incheon Intl-DEN Denver Intl

31h 45m2 stops Seattle/Tacoma Intl San Diego

8:06 pm - 5:30 pmDEN Denver Intl-ICN Incheon Intl

30h 24m2 stops San Diego Seattle/Tacoma Intl

$1,280Alaska Airlines

Sun, Sep 13 - Thu, Sep 17

7:35 pm - 12:20 pmICN Incheon Intl-DEN Denver Intl

31h 45m2 stops Seattle/Tacoma Intl San Diego

8:06 pm - 5:30 pmDEN Denver Intl-ICN Incheon Intl

54h 24m2 stops San Diego Seattle/Tacoma Intl

$1,295Alaska Airlines

Sun, Sep 13 - Tue, Sep 15

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Air Canada flights from Incheon Intl Airport to Colorado

Our best Air Canada deals on Incheon Intl Airport to Colorado flight tickets

Air Canada

Oct 20

ICN5:45 pmIncheon Intl

29h 49m

2 stops

DEN8:34 amDenver Intl

Oct 25

DEN7:20 pmDenver Intl

29h 50m

2 stops

ICN4:10 pmIncheon Intl

$1,005

Air Canada

Dec 3

ICN6:55 pmIncheon Intl

15h 18m

1 stop

DEN6:13 pmDenver Intl

Dec 9

DEN8:15 amDenver Intl

16h 55m

1 stop

ICN5:10 pmIncheon Intl

$1,006

Air Canada

Oct 20

ICN5:45 pmIncheon Intl

29h 49m

2 stops

DEN8:34 amDenver Intl

Oct 25

DEN7:20 pmDenver Intl

29h 50m

2 stops

ICN4:10 pmIncheon Intl

$1,007

American Airlines flights from Incheon Intl Airport to Colorado

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

American Airlines

Sep 25

ICN5:50 pmIncheon Intl

16h 48m

1 stop

DEN7:38 pmDenver Intl

Oct 23

DEN6:26 amDenver Intl

18h 19m

1 stop

ICN3:45 pmIncheon Intl

$1,078

American Airlines

Oct 5

ICN5:50 pmIncheon Intl

21h 46m

2 stops

DEN12:36 amDenver Intl

Oct 18

DEN11:53 pmDenver Intl

24h 52m

2 stops

ICN3:45 pmIncheon Intl

$1,082

American Airlines

Sep 25

ICN5:50 pmIncheon Intl

21h 27m

2 stops

DEN12:17 amDenver Intl

Oct 23

DEN5:24 amDenver Intl

19h 21m

1 stop

ICN3:45 pmIncheon Intl

$1,083

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 Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Sat 10/24

6:00 pm-11:43 pm

2 stops20h 43m

Denver Intl

Sat 10/31

9:21 am-9:20 pm

1 stop20h 59m

$981

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Wed 10/21

5:45 pm-11:08 pm

1 stop20h 23m

Denver Intl

Thu 11/12

8:15 am-5:10 pm

1 stop16h 55m

$1,005

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 10/20

5:45 pm-6:18 pm

1 stop15h 33m

Denver Intl

Sun 10/25

7:20 pm-4:10 pm

2 stops29h 50m

$1,005

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Sun 10/25

7:45 pm-9:46 am

1 stop29h 01m

Denver Intl

Sun 11/1

9:21 am-9:20 pm

1 stop19h 59m

$1,018

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Sat 10/24

6:00 pm-9:46 am

1 stop30h 46m

Denver Intl

Sat 10/31

9:21 am-9:20 pm

1 stop20h 59m

$1,023

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Thu 10/22

7:20 pm-11:56 am

2 stops31h 36m

Denver Intl

Thu 10/29

5:25 am-5:45 pm

2 stops21h 20m

$1,050

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Mon 10/19

7:00 pm-9:44 am

2 stops29h 44m

Denver Intl

Mon 1/11

3:40 pm-5:45 pm

2 stops34h 05m

$1,050

Quickest round-trip

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Mon 11/16

6:55 pm-6:13 pm

1 stop15h 18m

Denver Intl

Fri 11/27

8:15 am-5:10 pm

1 stop16h 55m

$1,119

IncheonColorado Springs

ICN Incheon Intl - COS Colorado Springs

ICNCOS

Incheon Intl

Mon 2/1

6:00 pm-9:58 pm

2 stops19h 58m

Colorado Springs

Mon 2/15

5:13 pm-5:40 am

2 stops20h 27m

$1,161

IncheonColorado Springs

ICN Incheon Intl - COS Colorado Springs

ICNCOS

Incheon Intl

Mon 2/1

6:00 pm-9:58 pm

2 stops19h 58m

Colorado Springs

Mon 2/15

5:13 pm-5:40 am

2 stops20h 27m

$1,162

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 $695. 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 from Incheon Intl Airport 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 $974 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 $687 on momondo.

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

Best Price Found	$518
Fastest flight time	16h 25m
Direct flights	None

The best one-way flight to Colorado from Incheon Intl Airport in the past 72 hours is $518. The best round-trip flight deal from Incheon Intl Airport to Colorado found on momondo in the last 72 hours is $981.

The fastest flight from Incheon Intl Airport to Colorado takes 16h 25m

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 September 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
Delta	PriceFrom $459	Free Cancellation	Rating 7.8 8,568 reviews	Search Delta flights
United Airlines	PriceFrom $650	Free Cancellation	Rating 7.4 10,211 reviews	Search United Airlines flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.1 561 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,220 reviews	Search Korean Air flights
Air Canada	PriceFrom $955	Free Cancellation	Rating 7.1 11,619 reviews	Search Air Canada 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.