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 14h 50m on average. Another popular route from Seoul to Colorado is flying from Seoul to Denver, which will take roughly 20h 44m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Colorado?

Korean Air, Delta and Asiana Airlines 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 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.

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 May 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.

$534 Cheap Flights from Seoul to Colorado in 2026

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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.

7:35 pm - 11:54 pm

ICN

DEN

19h 19m

1 stop

9:06 pm - 8:25 pm

DEN

ICN

32h 19m

2 stops

$1,156Multiple Airlines

Wed, May 27 - Thu, Aug 27

5:45 pm - 11:12 pm

ICN

DEN

20h 27m

1 stop

8:53 pm - 4:05 pm

DEN

ICN

28h 12m

1 stop

$1,170Air Canada

Mon, Jul 6 - Mon, Jul 20

5:45 pm - 11:12 pm

ICN

DEN

20h 27m

1 stop

9:10 am - 4:05 pm

DEN

ICN

15h 55m

1 stop

$1,173Air Canada

Mon, Jul 6 - Mon, Jul 20

9:40 pm - 11:15 pm

ICN

DEN

16h 35m

1 stop

7:43 pm - 3:20 pm

DEN

ICN

28h 37m

1 stop

$1,188Asiana Airlines

Mon, Jun 8 - Tue, Jun 23

9:40 pm - 11:14 pm

ICN

DEN

16h 34m

1 stop

6:00 am - 3:20 pm

DEN

ICN

18h 20m

1 stop

$1,192Asiana Airlines

Fri, Jun 5 - Thu, Sep 3

12:40 pm - 11:38 pm

GMP

DEN

25h 58m

2 stops

1:26 pm - 11:05 am

DEN

GMP

30h 39m

2 stops

$1,320ANA

Mon, Jun 22 - Tue, Jul 28

12:40 pm - 9:44 pm

GMP

DEN

24h 04m

2 stops

7:40 am - 10:20 pm

DEN

GMP

23h 40m

2 stops

$1,348ANA

Wed, Sep 2 - Thu, Sep 3

11:30 am - 11:10 am

ICN

COS

38h 40m

2 stops

5:05 pm - 4:20 am

COS

ICN

20h 15m

2 stops

$1,359United Airlines

Fri, Jun 5 - Sun, Sep 6

7:20 pm - 11:15 am

ICN

COS

30h 55m

1 stop

8:00 am - 3:20 pm

COS

ICN

16h 20m

1 stop

$1,613Delta

Fri, Jun 5 - Sun, Sep 6

2:30 pm - 11:15 am

ICN

COS

35h 45m

2 stops

6:20 pm - 5:50 pm

COS

ICN

32h 30m

2 stops

$1,869Delta

Fri, Jun 5 - Thu, Jun 18

Alaska Airlines flights from Seoul to Colorado

Our best Alaska Airlines deals on Seoul to Colorado flight tickets

Alaska Airlines

May 27

ICN7:35 pmIncheon Intl

17h 16m

1 stop

DEN9:51 pmDenver Intl

Aug 28

DEN7:28 pmDenver Intl

31h 02m

1 stop

ICN5:30 pmIncheon Intl

$1,216

Alaska Airlines

Oct 12

ICN7:35 pmIncheon Intl

31h 00m

2 stops

DEN11:35 amDenver Intl

Oct 23

DEN6:58 pmDenver Intl

31h 37m

2 stops

ICN5:35 pmIncheon Intl

$1,233

Alaska Airlines

Oct 11

ICN7:35 pmIncheon Intl

17h 46m

1 stop

DEN10:21 pmDenver Intl

Oct 20

DEN6:58 pmDenver Intl

31h 32m

2 stops

ICN5:30 pmIncheon Intl

$1,309

Delta flights from Seoul to Colorado

Our best Delta deals on Seoul to Colorado flight tickets

Delta

Oct 7

ICN7:20 pmIncheon Intl

14h 50m

1 stop

DEN7:10 pmDenver Intl

Oct 21

DEN3:40 pmDenver Intl

34h 10m

2 stops

ICN4:50 pmIncheon Intl

$1,220

Delta

Oct 19

ICN7:00 pmIncheon Intl

29h 44m

2 stops

DEN9:44 amDenver Intl

Jan 11

DEN6:25 pmDenver Intl

31h 30m

2 stops

ICN5:55 pmIncheon Intl

$1,222

Delta

Oct 10

ICN7:20 pmIncheon Intl

14h 50m

1 stop

DEN7:10 pmDenver Intl

Oct 19

DEN7:05 amDenver Intl

17h 15m

1 stop

ICN3:20 pmIncheon Intl

$1,271

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Wed 5/27

7:35 pm-11:54 pm

1 stop19h 19m

Denver Intl

Thu 8/27

9:06 pm-8:25 pm

2 stops32h 19m

$1,156

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 7/6

5:45 pm-11:12 pm

1 stop20h 27m

Denver Intl

Mon 7/20

8:53 pm-4:05 pm

1 stop28h 12m

$1,170

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 7/6

5:45 pm-11:12 pm

1 stop20h 27m

Denver Intl

Mon 7/20

9:10 am-4:05 pm

1 stop15h 55m

$1,173

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 6/8

9:40 pm-11:15 pm

1 stop16h 35m

Denver Intl

Tue 6/23

7:43 pm-3:20 pm

1 stop28h 37m

$1,188

Quickest round-trip

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 6/5

9:40 pm-11:14 pm

1 stop16h 34m

Denver Intl

Thu 9/3

6:00 am-3:20 pm

1 stop18h 20m

$1,192

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Mon 6/22

12:40 pm-11:38 pm

2 stops25h 58m

Denver Intl

Tue 7/28

1:26 pm-11:05 am

2 stops30h 39m

$1,320

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Wed 9/2

12:40 pm-9:44 pm

2 stops24h 04m

Denver Intl

Thu 9/3

7:40 am-10:20 pm

2 stops23h 40m

$1,348

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Fri 6/5

11:30 am-11:10 am

2 stops38h 40m

Colorado Springs

Sun 9/6

5:05 pm-4:20 am

2 stops20h 15m

$1,359

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Fri 6/5

7:20 pm-11:15 am

1 stop30h 55m

Colorado Springs

Sun 9/6

8:00 am-3:20 pm

1 stop16h 20m

$1,613

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Fri 6/5

2:30 pm-11:15 am

2 stops35h 45m

Colorado Springs

Thu 6/18

6:20 pm-5:50 pm

2 stops32h 30m

$1,869

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 March is, on average, the cheapest month to fly to Colorado from Seoul, with most prices found around $146. The month of July is another great option to travel to Colorado, with average flight prices from Seoul averaging around $247.

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 $885 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 $669 on momondo.

Can stopping save me money on Seoul to Colorado flights?

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

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	16h 44m
Direct flights	None

The fastest flight from Seoul to Colorado takes 16h 44m

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 May 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
United Airlines	PriceFrom $589	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines flights
Delta	PriceFrom $620	Free Cancellation	Rating 7.9 8,457 reviews	Search Delta flights
Air Canada	PriceFrom $686	Free Cancellation	Rating 7.1 11,005 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.1 530 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air 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.