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 45% 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 14h 13m on average. Another popular route from Seoul to Colorado is flying from Seoul to Denver, which will take roughly 24h 40m. 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 June 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.

$515 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.

8:00 am - 9:30 pm

ICN

DEN

28h 30m

2 stops

9:47 am - 9:40 pm

DEN

ICN

20h 53m

1 stop

$953Multiple Airlines

Wed, Sep 16 - Mon, Sep 28

8:00 am - 9:30 pm

ICN

DEN

28h 30m

2 stops

9:47 am - 9:40 pm

DEN

ICN

20h 53m

1 stop

$955Multiple Airlines

Tue, Sep 15 - Mon, Sep 28

5:45 pm - 5:13 pm

ICN

DEN

14h 28m

1 stop

7:18 pm - 4:05 pm

DEN

ICN

29h 47m

2 stops

$1,026Air Canada

Thu, Jul 9 - Thu, Jul 16

5:45 pm - 12:35 pm

ICN

DEN

33h 50m

1 stop

4:15 pm - 4:05 pm

DEN

ICN

32h 50m

1 stop

$1,028Air Canada

Mon, Jul 6 - Mon, Jul 20

12:45 pm - 10:02 pm

ICN

COS

25h 17m

2 stops

3:09 pm - 5:40 am

COS

ICN

22h 31m

2 stops

$1,322United Airlines

Thu, Nov 12 - Mon, Nov 16

12:45 pm - 6:30 pm

ICN

COS

21h 45m

2 stops

3:25 pm - 5:40 am

COS

ICN

22h 15m

2 stops

$1,336United Airlines

Thu, Nov 12 - Mon, Nov 16

8:00 am - 5:40 pm

GMP

DEN

24h 40m

2 stops

7:22 am - 9:15 pm

DEN

GMP

22h 53m

2 stops

$1,556Japan Airlines

Thu, Jul 2 - Mon, Jul 13

8:00 am - 5:40 pm

GMP

DEN

24h 40m

2 stops

7:22 am - 9:15 pm

DEN

GMP

22h 53m

2 stops

$1,593Japan Airlines

Tue, Jul 7 - Sat, Jul 11

7:00 pm - 5:35 pm

ICN

COS

37h 35m

2 stops

8:10 am - 3:20 pm

COS

ICN

16h 10m

1 stop

$1,629Delta

Tue, Jul 14 - Thu, Jul 23

7:20 pm - 10:41 pm

ICN

COS

18h 21m

1 stop

8:10 am - 3:20 pm

COS

ICN

16h 10m

1 stop

$1,631Delta

Tue, Jul 14 - Thu, Jul 23

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Air Canada flights from Seoul to Colorado

Our best Air Canada deals on Seoul to Colorado flight tickets

Air Canada

Jul 6

ICN5:45 pmIncheon Intl

33h 50m

1 stop

DEN12:35 pmDenver Intl

Jul 20

DEN4:15 pmDenver Intl

32h 50m

1 stop

ICN4:05 pmIncheon Intl

$1,028

Air Canada

Jul 6

ICN5:45 pmIncheon Intl

20h 27m

1 stop

DEN11:12 pmDenver Intl

Jul 20

DEN4:15 pmDenver Intl

32h 50m

1 stop

ICN4:05 pmIncheon Intl

$1,030

Air Canada

Jul 2

ICN5:45 pmIncheon Intl

16h 45m

1 stop

DEN7:30 pmDenver Intl

Jul 15

DEN7:18 pmDenver Intl

29h 47m

2 stops

ICN4:05 pmIncheon Intl

$1,031

ANA flights from Seoul to Colorado

Our best ANA deals on Seoul to Colorado flight tickets

ANA

Dec 2

GMP12:25 pmSeoul Gimpo Intl

26h 45m

2 stops

DEN11:10 pmDenver Intl

Dec 10

DEN11:25 amDenver Intl

19h 05m

1 stop

GMP10:30 pmSeoul Gimpo Intl

$2,489

ANA

Aug 10

GMP8:40 amSeoul Gimpo Intl

18h 30m

1 stop

DEN12:10 pmDenver Intl

Aug 20

DEN11:40 amDenver Intl

19h 40m

1 stop

GMP10:20 pmSeoul Gimpo Intl

$3,280

ANA

Dec 2

GMP7:45 amSeoul Gimpo Intl

20h 25m

1 stop

DEN12:10 pmDenver Intl

Dec 10

DEN11:25 amDenver Intl

31h 55m

1 stop

GMP11:20 amSeoul Gimpo Intl

$3,335

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Wed 9/16

8:00 am-9:30 pm

2 stops28h 30m

Denver Intl

Mon 9/28

9:47 am-9:40 pm

1 stop20h 53m

$953

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 9/15

8:00 am-9:30 pm

2 stops28h 30m

Denver Intl

Mon 9/28

9:47 am-9:40 pm

1 stop20h 53m

$955

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 7/9

5:45 pm-5:13 pm

1 stop14h 28m

Denver Intl

Thu 7/16

7:18 pm-4:05 pm

2 stops29h 47m

$1,026

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 7/6

5:45 pm-12:35 pm

1 stop33h 50m

Denver Intl

Mon 7/20

4:15 pm-4:05 pm

1 stop32h 50m

$1,028

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Thu 11/12

12:45 pm-10:02 pm

2 stops25h 17m

Colorado Springs

Mon 11/16

3:09 pm-5:40 am

2 stops22h 31m

$1,322

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Thu 11/12

12:45 pm-6:30 pm

2 stops21h 45m

Colorado Springs

Mon 11/16

3:25 pm-5:40 am

2 stops22h 15m

$1,336

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Thu 7/2

8:00 am-5:40 pm

2 stops24h 40m

Denver Intl

Mon 7/13

7:22 am-9:15 pm

2 stops22h 53m

$1,556

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Tue 7/7

8:00 am-5:40 pm

2 stops24h 40m

Denver Intl

Sat 7/11

7:22 am-9:15 pm

2 stops22h 53m

$1,593

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Tue 7/14

7:00 pm-5:35 pm

2 stops37h 35m

Colorado Springs

Thu 7/23

8:10 am-3:20 pm

1 stop16h 10m

$1,629

Quickest round-trip

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Tue 7/14

7:20 pm-10:41 pm

1 stop18h 21m

Colorado Springs

Thu 7/23

8:10 am-3:20 pm

1 stop16h 10m

$1,631

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 November is another great option to travel to Colorado, with average flight prices from Seoul averaging around $449.

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 $893 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	14h 13m
Direct flights	None

The fastest flight from Seoul to Colorado takes 14h 13m

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 June 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 8,419 reviews	Search Delta flights
United Airlines	PriceFrom $589	Free Cancellation	Rating 7.4 9,866 reviews	Search United Airlines flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.1 544 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
Air Canada	PriceFrom $700	Free Cancellation	Rating 7.1 11,222 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.