What airlines fly to Colorado?

Korean Air, Asiana Airlines and Delta are the top three most popular airlines that fly to Colorado from Seoul 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.

How long is the flight from Seoul to Colorado?

Flight times from Seoul to Colorado vary, but if you’re flying out of Incheon and flying into Denver (one of the most popular routes), then the duration is 15h 06m on average. Another popular route from Seoul to Colorado is flying from Seoul to Denver, which will take roughly 20h 18m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Seoul to Colorado?

Prices for flights from Seoul to Colorado were last updated today.

How many operators does momondo search for flights from Seoul to Colorado?

There are 5 operators available for flights from Seoul to Colorado as of August 2026.

How old do you have to be to fly from Seoul to Colorado?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Colorado.

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

The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$441 Cheap Flights from Seoul to Colorado in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seoul to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:50 pm - 8:28 amICN Incheon Intl-DEN Denver Intl

30h 38m2 stops San Francisco Sacramento Intl

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

19h 00m1 stop San Francisco

$824United Airlines

Fri, Sep 25 - Sun, Sep 27

5:50 pm - 8:12 amICN Incheon Intl-DEN Denver Intl

29h 22m1 stop Dallas/Fort Worth

4:22 pm - 4:45 pmDEN Denver Intl-ICN Incheon Intl

33h 23m1 stop Dallas/Fort Worth

$874American Airlines

Wed, Oct 21 - Sun, Oct 25

5:50 pm - 9:52 amICN Incheon Intl-DEN Denver Intl

31h 02m1 stop Dallas/Fort Worth

6:26 am - 3:45 pmDEN Denver Intl-ICN Incheon Intl

18h 19m1 stop Dallas/Fort Worth

$876American Airlines

Thu, Sep 3 - Wed, Sep 16

6:55 pm - 8:40 amICN Incheon Intl-DEN Denver Intl

29h 45m2 stops Vancouver Intl Calgary

8:15 am - 4:05 pmDEN Denver Intl-ICN Incheon Intl

16h 50m1 stop Vancouver Intl

$912Air Canada

Thu, Dec 24 - Fri, Jun 4

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

15h 18m1 stop Vancouver Intl

8:15 am - 4:05 pmDEN Denver Intl-ICN Incheon Intl

16h 50m1 stop Vancouver Intl

$912Air Canada

Thu, Dec 24 - Fri, Jun 4

11:30 am - 7:45 pmICN Incheon Intl-DEN Denver Intl

23h 15m2 stops San Francisco Sacramento Intl

11:18 am - 4:20 amDEN Denver Intl-ICN Incheon Intl

26h 02m1 stop San Francisco

$917United Airlines

Wed, Sep 16 - Thu, Sep 17

7:00 pm - 12:09 pmICN Incheon Intl-DEN Denver Intl

32h 09m2 stops Seattle/Tacoma Intl Salt Lake City

6:06 pm - 4:50 pmDEN Denver Intl-ICN Incheon Intl

31h 44m2 stops Salt Lake City Seattle/Tacoma Intl

$996Delta

Fri, Sep 25 - Sun, Sep 27

6:45 pm - 7:10 pmICN Incheon Intl-DEN Denver Intl

16h 25m2 stops Seattle/Tacoma Intl Salt Lake City

3:40 pm - 4:40 pmDEN Denver Intl-ICN Incheon Intl

34h 00m2 stops Salt Lake City Seattle/Tacoma Intl

$1,077Delta

Wed, Dec 23 - Sun, Jun 6

12:40 pm - 2:22 pmICN Incheon Intl-DEN Denver Intl

16h 42m1 stop Los Angeles Los Angeles

5:45 pm - 4:10 amDEN Denver Intl-ICN Incheon Intl

19h 25m1 stop Los Angeles Los Angeles

$1,115Asiana Airlines

Tue, Aug 25 - Tue, Sep 8

2:30 pm - 6:10 pmICN Incheon Intl-DEN Denver Intl

19h 40m1 stop Los Angeles Los Angeles

7:05 am - 3:20 pmDEN Denver Intl-ICN Incheon Intl

17h 15m1 stop Salt Lake City

$1,220Korean Air

Wed, Jan 13 - Thu, Jun 3

Cheap last minute flights

Enter your travel dates to find the best prices.

5:45 pm - 6:04 pmICN Incheon Intl-DEN Denver Intl

39h 19m2 stops Vancouver Intl Edmonton

7:00 pm - 5:10 pmDEN Denver Intl-ICN Incheon Intl

30h 10m1 stop Vancouver Intl

$1,239Air Canada

Thu, Aug 13 - Wed, Nov 11

1:40 pm - 12:29 amICN Incheon Intl-DEN Denver Intl

25h 49m2 stops Hong Kong Intl Los Angeles Los Angeles

10:44 pm - 12:40 pmDEN Denver Intl-ICN Incheon Intl

46h 56m2 stops Los Angeles Los Angeles Hong Kong Intl

$1,241Multiple Airlines

Fri, Aug 14 - Tue, Sep 15

7:20 am - 10:58 pmICN Incheon Intl-DEN Denver Intl

54h 38m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

8:59 am - 9:40 pmDEN Denver Intl-ICN Incheon Intl

21h 41m1 stop San Francisco

$1,267Multiple Airlines

Sun, Aug 16 - Wed, Sep 16

5:45 pm - 6:04 pmICN Incheon Intl-DEN Denver Intl

39h 19m2 stops Vancouver Intl Edmonton

7:00 pm - 5:10 pmDEN Denver Intl-ICN Incheon Intl

30h 10m1 stop Vancouver Intl

$1,284Air Canada

Thu, Aug 13 - Fri, Nov 13

11:30 am - 2:32 pmICN Incheon Intl-DEN Denver Intl

18h 02m1 stop San Francisco

2:16 pm - 4:25 pmDEN Denver Intl-ICN Incheon Intl

34h 09m1 stop Newark

$1,359Asiana Airlines

Thu, Aug 13 - Wed, Nov 11

4:50 pm - 9:13 pmICN Incheon Intl-DEN Denver Intl

19h 23m1 stop San Francisco

11:59 pm - 3:20 pmDEN Denver Intl-ICN Incheon Intl

24h 21m2 stops Washington, D.C. Dulles Intl Newark

$1,471United Airlines

Sat, Aug 15 - Wed, Sep 16

11:30 am - 11:42 pmICN Incheon Intl-DEN Denver Intl

27h 12m1 stop San Francisco

6:00 am - 4:15 pmDEN Denver Intl-ICN Incheon Intl

18h 15m1 stop San Francisco

$1,480United Airlines

Thu, Aug 13 - Fri, Nov 13

11:30 am - 11:42 pmICN Incheon Intl-DEN Denver Intl

27h 12m1 stop San Francisco

7:20 pm - 5:40 amDEN Denver Intl-ICN Incheon Intl

18h 20m1 stop San Francisco

$1,518Asiana Airlines

Thu, Aug 13 - Fri, Nov 13

10:35 pm - 9:14 amICN Incheon Intl-DEN Denver Intl

25h 39m2 stops Honolulu Salt Lake City

6:06 pm - 4:40 amDEN Denver Intl-ICN Incheon Intl

19h 34m2 stops Salt Lake City Los Angeles Los Angeles

$1,671Delta

Sat, Aug 15 - Mon, Sep 14

10:35 pm - 9:14 amICN Incheon Intl-DEN Denver Intl

25h 39m2 stops Honolulu Salt Lake City

5:30 am - 4:40 pmDEN Denver Intl-ICN Incheon Intl

20h 10m2 stops Salt Lake City Seattle/Tacoma Intl

$1,671Delta

Sat, Aug 15 - Thu, Sep 17

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Air Canada flights from Seoul to Colorado

Our best Air Canada deals on Seoul to Colorado flight tickets

Air Canada

Dec 24

ICN6:55 pmIncheon Intl

29h 45m

2 stops

DEN8:40 amDenver Intl

Jun 4

DEN8:15 amDenver Intl

16h 50m

1 stop

ICN4:05 pmIncheon Intl

$912

Air Canada

Sep 16

ICN5:45 pmIncheon Intl

14h 13m

1 stop

DEN4:58 pmDenver Intl

Sep 17

DEN7:50 pmDenver Intl

29h 15m

1 stop

ICN4:05 pmIncheon Intl

$925

Air Canada

Oct 19

ICN5:45 pmIncheon Intl

29h 49m

2 stops

DEN8:34 amDenver Intl

Jan 11

DEN7:10 pmDenver Intl

30h 00m

1 stop

ICN5:10 pmIncheon Intl

$935

ANA flights from Seoul to Colorado

Our best ANA deals on Seoul to Colorado flight tickets

ANA

Sep 3

GMP12:40 pmSeoul Gimpo Intl

23h 33m

2 stops

DEN9:13 pmDenver Intl

Sep 16

DEN1:30 pmDenver Intl

30h 35m

2 stops

GMP11:05 amSeoul Gimpo Intl

$1,347

ANA

Aug 31

GMP7:40 amSeoul Gimpo Intl

28h 33m

2 stops

DEN9:13 pmDenver Intl

Dec 1

DEN7:45 pmDenver Intl

30h 50m

2 stops

GMP6:35 pmSeoul Gimpo Intl

$1,386

ANA

Sep 2

GMP12:40 pmSeoul Gimpo Intl

24h 19m

2 stops

DEN9:59 pmDenver Intl

Dec 2

DEN7:45 pmDenver Intl

23h 35m

2 stops

GMP11:20 amSeoul Gimpo Intl

$1,413

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Fri 9/25

4:50 pm-8:28 am

2 stops30h 38m

Denver Intl

Sun 9/27

5:00 am-3:00 pm

1 stop19h 00m

$824

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Wed 10/21

5:50 pm-8:12 am

1 stop29h 22m

Denver Intl

Sun 10/25

4:22 pm-4:45 pm

1 stop33h 23m

$874

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Thu 9/3

5:50 pm-9:52 am

1 stop31h 02m

Denver Intl

Wed 9/16

6:26 am-3:45 pm

1 stop18h 19m

$876

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Thu 12/24

6:55 pm-8:40 am

2 stops29h 45m

Denver Intl

Fri 6/4

8:15 am-4:05 pm

1 stop16h 50m

$912

Quickest round-trip

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Thu 12/24

6:55 pm-6:13 pm

1 stop15h 18m

Denver Intl

Fri 6/4

8:15 am-4:05 pm

1 stop16h 50m

$912

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Wed 9/16

11:30 am-7:45 pm

2 stops23h 15m

Denver Intl

Thu 9/17

11:18 am-4:20 am

1 stop26h 02m

$917

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Fri 9/25

7:00 pm-12:09 pm

2 stops32h 09m

Denver Intl

Sun 9/27

6:06 pm-4:50 pm

2 stops31h 44m

$996

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Wed 12/23

6:45 pm-7:10 pm

2 stops16h 25m

Denver Intl

Sun 6/6

3:40 pm-4:40 pm

2 stops34h 00m

$1,077

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 8/25

12:40 pm-2:22 pm

1 stop16h 42m

Denver Intl

Tue 9/8

5:45 pm-4:10 am

1 stop19h 25m

$1,115

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Wed 1/13

2:30 pm-6:10 pm

1 stop19h 40m

Denver Intl

Thu 6/3

7:05 am-3:20 pm

1 stop17h 15m

$1,220

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 Seoul 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

Other information

What is the cheapest month to fly to Colorado?

The month of August is, on average, the cheapest month to fly to Colorado from Seoul, with most prices found around $0. The month of January is another great option to travel to Colorado, with average flight prices from Seoul averaging around $699.

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

You are more likely to see cheaper flights to Colorado from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $907 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Seoul for as low as $680 on momondo.

Cheap Seoul to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Colorado

Fastest flight time	15h 06m
Direct flights	None

The fastest flight from Seoul to Colorado takes 15h 06m

There are no direct flights from Seoul to Colorado. There are no popular flight routes from Seoul to Colorado.

Search flight deals

Frequently asked questions about flying from Seoul to Colorado

When did momondo last update prices for flights from Seoul to Colorado?
Prices for flights from Seoul to Colorado were last updated today.
How many operators does momondo search for flights from Seoul to Colorado?
There are 5 operators available for flights from Seoul to Colorado as of August 2026.
How old do you have to be to fly from Seoul to Colorado?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Colorado.
What documentation or ID do you need to fly to Colorado?
The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seoul to Colorado

Compare and see reviews for airlines that fly from Seoul to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $459	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
United Airlines	PriceFrom $589	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.1 556 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
Air Canada	PriceFrom $955	Free Cancellation	Rating 7.1 11,462 reviews	Search Air Canada flights

Why use momondo?

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

Finding the right flight to Colorado from Seoul is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Colorado quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Colorado from Seoul which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Colorado from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Seoul to Colorado flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.