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 18m on average. Another popular route from Seoul to Colorado is flying from Seoul to Denver, which will take roughly 20h 30m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Colorado?

Korean Air, Asiana Airlines and Air Canada 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 46% 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 September 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.

$493 Cheap Flights from Seoul to Colorado in 2026/27

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.

1:20 pm - 9:46 amICN Incheon Intl-DEN Denver Intl

35h 26m2 stops Xiamen Gaoqi Intl Los Angeles

10:29 pm - 9:20 pmDEN Denver Intl-ICN Incheon Intl

31h 51m2 stops San Diego San Francisco

$940Multiple Airlines

Tue, Oct 27 - Fri, Oct 30

1:20 pm - 9:45 amICN Incheon Intl-DEN Denver Intl

35h 25m2 stops Xiamen Gaoqi Intl Los Angeles

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

20h 59m1 stop San Francisco

$950Multiple Airlines

Tue, Oct 27 - Fri, Oct 30

1:20 pm - 3:47 pmICN Incheon Intl-DEN Denver Intl

18h 27m1 stop Los Angeles

1:46 pm - 5:10 amDEN Denver Intl-ICN Incheon Intl

23h 24m1 stop Los Angeles

$970Multiple Airlines

Wed, Dec 2 - Wed, Dec 9

5:45 pm - 8:34 amICN Incheon Intl-DEN Denver Intl

29h 49m2 stops Vancouver Intl Calgary

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

29h 50m2 stops Edmonton Vancouver Intl

$1,151Air Canada

Tue, Oct 20 - Sun, Oct 25

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

20h 23m1 stop Vancouver Intl

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

29h 50m2 stops Edmonton Vancouver Intl

$1,151Air Canada

Tue, Oct 20 - Sun, Oct 25

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

20h 23m1 stop Vancouver Intl

7:00 pm - 4:10 pmDEN Denver Intl-ICN Incheon Intl

30h 10m1 stop Vancouver Intl

$1,151Air Canada

Tue, Oct 20 - Sun, Oct 25

12:45 pm - 10:07 pmICN Incheon Intl-COS Colorado Springs

25h 22m2 stops San Francisco Denver Intl

6:35 pm - 5:40 amCOS Colorado Springs-ICN Incheon Intl

19h 05m2 stops Denver Intl San Francisco

$1,229United Airlines

Mon, Feb 1 - Mon, Feb 15

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

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

6:25 pm - 5:45 pmDEN Denver Intl-ICN Incheon Intl

31h 20m2 stops Salt Lake City Seattle/Tacoma Intl

$1,229Delta

Mon, Oct 19 - Mon, Feb 22

12:45 pm - 10:07 pmICN Incheon Intl-COS Colorado Springs

25h 22m2 stops San Francisco Denver Intl

6:35 pm - 5:40 amCOS Colorado Springs-ICN Incheon Intl

19h 05m2 stops Denver Intl San Francisco

$1,235United Airlines

Mon, Feb 1 - Mon, Feb 15

7:00 pm - 11:56 amICN Incheon Intl-DEN Denver Intl

31h 56m2 stops Seattle/Tacoma Intl Salt Lake City

6:00 pm - 3:20 pmDEN Denver Intl-ICN Incheon Intl

30h 20m1 stop Salt Lake City

$1,235Delta

Thu, Oct 8 - Mon, Oct 12

Cheap last minute flights

Enter your travel dates to find the best prices.

5:50 pm - 10:34 pmICN Incheon Intl-DEN Denver Intl

19h 44m1 stop Dallas/Fort Worth

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

18h 19m1 stop Dallas/Fort Worth

$1,112American Airlines

Sat, Oct 3 - Wed, Oct 21

5:50 pm - 7:38 pmICN Incheon Intl-DEN Denver Intl

16h 48m1 stop Dallas/Fort Worth

4:54 pm - 3:45 pmDEN Denver Intl-ICN Incheon Intl

31h 51m1 stop Dallas/Fort Worth

$1,112American Airlines

Tue, Sep 29 - Sat, Oct 10

5:50 pm - 12:17 amICN Incheon Intl-DEN Denver Intl

21h 27m2 stops Dallas/Fort Worth Chicago O'Hare Intl

4:54 pm - 3:45 pmDEN Denver Intl-ICN Incheon Intl

31h 51m1 stop Dallas/Fort Worth

$1,112American Airlines

Tue, Sep 29 - Sat, Oct 10

5:50 pm - 12:17 amICN Incheon Intl-DEN Denver Intl

21h 27m2 stops Dallas/Fort Worth Chicago O'Hare Intl

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

18h 19m1 stop Dallas/Fort Worth

$1,116American Airlines

Sat, Oct 3 - Wed, Oct 21

5:50 pm - 12:17 amICN Incheon Intl-DEN Denver Intl

21h 27m2 stops Dallas/Fort Worth Chicago O'Hare Intl

11:59 pm - 3:45 pmDEN Denver Intl-ICN Incheon Intl

24h 46m2 stops Charlotte Douglas Dallas/Fort Worth

$1,116American Airlines

Sat, Oct 3 - Wed, Oct 21

5:50 pm - 10:34 pmICN Incheon Intl-DEN Denver Intl

19h 44m1 stop Dallas/Fort Worth

5:24 am - 3:45 pmDEN Denver Intl-ICN Incheon Intl

19h 21m1 stop Dallas/Fort Worth

$1,165American Airlines

Fri, Oct 2 - Sun, Oct 11

5:50 pm - 12:17 amICN Incheon Intl-DEN Denver Intl

21h 27m2 stops Dallas/Fort Worth Chicago O'Hare Intl

5:24 am - 3:45 pmDEN Denver Intl-ICN Incheon Intl

19h 21m1 stop Dallas/Fort Worth

$1,165American Airlines

Fri, Oct 2 - Sun, Oct 11

5:50 pm - 9:46 pmICN Incheon Intl-DEN Denver Intl

18h 56m1 stop Dallas/Fort Worth

6:43 pm - 3:45 pmDEN Denver Intl-ICN Incheon Intl

30h 02m1 stop Dallas/Fort Worth

$1,174American Airlines

Sun, Oct 4 - Sat, Oct 10

5:50 pm - 12:17 amICN Incheon Intl-DEN Denver Intl

21h 27m2 stops Dallas/Fort Worth Chicago O'Hare Intl

11:53 pm - 3:45 pmDEN Denver Intl-ICN Incheon Intl

24h 52m2 stops Miami Dallas/Fort Worth

$1,256American Airlines

Fri, Oct 2 - Sun, Oct 11

4:50 pm - 8:16 amICN Incheon Intl-DEN Denver Intl

30h 26m2 stops San Francisco Newark

9:05 pm - 3:00 pmDEN Denver Intl-ICN Incheon Intl

26h 55m1 stop San Francisco

$1,282United Airlines

Sun, Oct 4 - Sat, Oct 10

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American Airlines flights from Seoul to Colorado

Our best American Airlines deals on Seoul to Colorado flight tickets

American Airlines

Nov 10

ICN6:50 pmIncheon Intl

20h 04m

1 stop

DEN10:54 pmDenver Intl

Feb 1

DEN5:30 amDenver Intl

18h 55m

1 stop

ICN4:25 pmIncheon Intl

$1,051

American Airlines

Oct 19

ICN5:50 pmIncheon Intl

29h 19m

1 stop

DEN8:09 amDenver Intl

Feb 22

DEN8:04 pmDenver Intl

28h 21m

2 stops

ICN4:25 pmIncheon Intl

$1,053

American Airlines

Nov 10

ICN6:50 pmIncheon Intl

20h 04m

1 stop

DEN10:54 pmDenver Intl

Nov 17

DEN5:30 amDenver Intl

19h 15m

1 stop

ICN4:45 pmIncheon Intl

$1,057

Air Canada flights from Seoul to Colorado

Our best Air Canada deals on Seoul to Colorado flight tickets

Air Canada

Oct 20

ICN5:45 pmIncheon Intl

20h 23m

1 stop

DEN11:08 pmDenver Intl

Oct 25

DEN7:20 pmDenver Intl

29h 50m

2 stops

ICN4:10 pmIncheon Intl

$1,151

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

$1,157

Air Canada

Oct 13

ICN5:45 pmIncheon Intl

29h 49m

2 stops

DEN8:34 amDenver Intl

Nov 12

DEN7:20 pmDenver Intl

29h 50m

2 stops

ICN5:10 pmIncheon Intl

$1,163

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 10/27

1:20 pm-9:46 am

2 stops35h 26m

Denver Intl

Fri 10/30

10:29 pm-9:20 pm

2 stops31h 51m

$940

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 10/27

1:20 pm-9:45 am

2 stops35h 25m

Denver Intl

Fri 10/30

9:21 am-9:20 pm

1 stop20h 59m

$950

Quickest round-trip

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Wed 12/2

1:20 pm-3:47 pm

1 stop18h 27m

Denver Intl

Wed 12/9

1:46 pm-5:10 am

1 stop23h 24m

$970

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 10/20

5:45 pm-8:34 am

2 stops29h 49m

Denver Intl

Sun 10/25

7:20 pm-4:10 pm

2 stops29h 50m

$1,151

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 10/20

5:45 pm-11:08 pm

1 stop20h 23m

Denver Intl

Sun 10/25

7:20 pm-4:10 pm

2 stops29h 50m

$1,151

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Tue 10/20

5:45 pm-11:08 pm

1 stop20h 23m

Denver Intl

Sun 10/25

7:00 pm-4:10 pm

1 stop30h 10m

$1,151

IncheonColorado Springs

ICN Incheon Intl - COS Colorado Springs

ICNCOS

Incheon Intl

Mon 2/1

12:45 pm-10:07 pm

2 stops25h 22m

Colorado Springs

Mon 2/15

6:35 pm-5:40 am

2 stops19h 05m

$1,229

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 2/22

6:25 pm-5:45 pm

2 stops31h 20m

$1,229

IncheonColorado Springs

ICN Incheon Intl - COS Colorado Springs

ICNCOS

Incheon Intl

Mon 2/1

12:45 pm-10:07 pm

2 stops25h 22m

Colorado Springs

Mon 2/15

6:35 pm-5:40 am

2 stops19h 05m

$1,235

IncheonDenver

ICN Incheon Intl - DEN Denver Intl

ICNDEN

Incheon Intl

Thu 10/8

7:00 pm-11:56 am

2 stops31h 56m

Denver Intl

Mon 10/12

6:00 pm-3:20 pm

1 stop30h 20m

$1,235

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 January is, on average, the cheapest month to fly to Colorado from Seoul, with most prices found around $699. The month of December is another great option to travel to Colorado, with average flight prices from Seoul averaging around $703.

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 $1,001 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 $687 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

Best Price Found	$493
Fastest flight time	15h 18m
Direct flights	None

The best one-way flight to Colorado from Seoul in the past 72 hours is $493. The best round-trip flight deal from Seoul to Colorado found on momondo in the last 72 hours is $940.

The fastest flight from Seoul to Colorado takes 15h 18m

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 September 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 $620	Free Cancellation	Rating 7.8 8,611 reviews	Search Delta flights
United Airlines	PriceFrom $659	Free Cancellation	Rating 7.4 10,251 reviews	Search United Airlines flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.1 563 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $703	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
Air Canada	PriceFrom $955	Free Cancellation	Rating 7.1 11,703 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.