What is the cheapest airline that flies from Seoul to Colorado?

American Airlines and ANA are the most popular carriers operating from Seoul to Colorado

What airlines fly to Colorado?

Korean Air, Delta and United 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 45% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 6 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 50m on average. Another popular route from Seoul to Colorado is flying from Seoul to Denver, which will take roughly 21h 47m. 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 6 operators available for flights from Seoul to Colorado as of December 2025.

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.

$370 Cheap Flights from Seoul to Colorado in 2025/26

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Find the cheapest flights from Seoul to Colorado

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 pm - 8:28 am

ICN

DEN

30h 28m2 stops

7:47 am - 5:40 am

DEN

ICN

29h 53m1 stop

$544United Airlines

Fri, Feb 6 - Sun, Feb 8

8:35 pm - 11:35 pm

ICN

DEN

19h 00m1 stop

7:00 am - 6:35 pm

DEN

ICN

19h 35m1 stop

$606Multiple Airlines

Fri, Feb 6 - Sun, Feb 8

8:35 pm - 11:35 pm

ICN

DEN

19h 00m1 stop

7:00 am - 6:35 pm

DEN

ICN

19h 35m1 stop

$607Multiple Airlines

Fri, Feb 6 - Sun, Feb 8

7:15 pm - 5:42 pm

ICN

DEN

38h 27m2 stops

6:56 pm - 4:45 pm

DEN

ICN

29h 49m2 stops

$618American Airlines

Fri, Feb 6 - Sun, Feb 8

7:15 pm - 5:42 pm

ICN

DEN

38h 27m2 stops

6:56 pm - 4:45 pm

DEN

ICN

29h 49m2 stops

$619American Airlines

Fri, Feb 6 - Sun, Feb 8

8:05 pm - 11:21 pm

ICN

DEN

19h 16m1 stop

5:30 am - 4:20 pm

DEN

ICN

18h 50m1 stop

$632Delta

Thu, Dec 18 - Mon, Dec 29

8:05 pm - 9:38 am

ICN

DEN

29h 33m2 stops

3:59 pm - 4:30 pm

DEN

ICN

32h 31m2 stops

$666Delta

Tue, Jan 27 - Tue, Feb 24

8:35 pm - 11:59 pm

ICN

DEN

18h 24m1 stop

7:50 pm - 6:35 pm

DEN

ICN

31h 45m1 stop

$678Hawaiian Airlines

Sat, Mar 14 - Sat, Mar 21

7:25 pm - 12:36 pm

ICN

COS

33h 11m1 stop

1:20 pm - 5:45 am

COS

ICN

24h 25m1 stop

$2,898Korean Air

Sat, Jan 24 - Tue, Jan 27

7:25 pm - 12:36 pm

ICN

COS

33h 11m1 stop

1:20 pm - 5:45 am

COS

ICN

24h 25m1 stop

$2,900Korean Air

Sat, Jan 24 - Tue, Jan 27

United Airlines flights from Seoul to Colorado

Our best United Airlines deals on Seoul to Colorado flight tickets

United Airlines

Feb 6

ICN6:00 pmIncheon Intl

30h 28m

2 stops

DEN8:28 amDenver Intl

Feb 8

DEN7:47 amDenver Intl

29h 53m

1 stop

ICN5:40 amIncheon Intl

$544

Find similar

United Airlines

Jan 30

ICN6:00 pmIncheon Intl

20h 06m

2 stops

DEN10:06 pmDenver Intl

Feb 27

DEN7:45 amDenver Intl

16h 30m

1 stop

ICN4:15 pmIncheon Intl

$661

Find similar

United Airlines

Dec 24

ICN12:45 pmIncheon Intl

24h 08m

1 stop

DEN8:53 pmDenver Intl

Jan 1

DEN5:45 amDenver Intl

18h 30m

1 stop

ICN4:15 pmIncheon Intl

$671

Find similar

Delta flights from Seoul to Colorado

Our best Delta deals on Seoul to Colorado flight tickets

Delta

Jan 29

ICN7:30 pmIncheon Intl

16h 35m

1 stop

DEN8:05 pmDenver Intl

Feb 25

DEN6:40 amDenver Intl

17h 50m

1 stop

ICN4:30 pmIncheon Intl

$632

Find similar

Delta

Jan 28

ICN8:05 pmIncheon Intl

34h 45m

2 stops

DEN2:50 pmDenver Intl

Feb 25

DEN3:59 pmDenver Intl

32h 31m

2 stops

ICN4:30 pmIncheon Intl

$666

Find similar

Delta

Dec 28

ICN7:40 pmIncheon Intl

31h 20m

1 stop

DEN11:00 amDenver Intl

Jan 14

DEN11:33 amDenver Intl

35h 57m

1 stop

ICN3:30 pmIncheon Intl

$683

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/6

6:00 pm-8:28 am

2 stops30h 28m

Denver Intl

Sun 2/8

7:47 am-5:40 am

1 stop29h 53m

$544

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/6

8:35 pm-11:35 pm

1 stop19h 00m

Denver Intl

Sun 2/8

7:00 am-6:35 pm

1 stop19h 35m

$606

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/6

8:35 pm-11:35 pm

1 stop19h 00m

Denver Intl

Sun 2/8

7:00 am-6:35 pm

1 stop19h 35m

$607

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/6

7:15 pm-5:42 pm

2 stops38h 27m

Denver Intl

Sun 2/8

6:56 pm-4:45 pm

2 stops29h 49m

$618

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/6

7:15 pm-5:42 pm

2 stops38h 27m

Denver Intl

Sun 2/8

6:56 pm-4:45 pm

2 stops29h 49m

$619

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 12/18

8:05 pm-11:21 pm

1 stop19h 16m

Denver Intl

Mon 12/29

5:30 am-4:20 pm

1 stop18h 50m

$632

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 1/27

8:05 pm-9:38 am

2 stops29h 33m

Denver Intl

Tue 2/24

3:59 pm-4:30 pm

2 stops32h 31m

$666

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 3/14

8:35 pm-11:59 pm

1 stop18h 24m

Denver Intl

Sat 3/21

7:50 pm-6:35 pm

1 stop31h 45m

$678

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Sat 1/24

7:25 pm-12:36 pm

1 stop33h 11m

Colorado Springs

Tue 1/27

1:20 pm-5:45 am

1 stop24h 25m

$2,898

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Sat 1/24

7:25 pm-12:36 pm

1 stop33h 11m

Colorado Springs

Tue 1/27

1:20 pm-5:45 am

1 stop24h 25m

$2,900

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 $711. The month of November is another great option to travel to Colorado, with average flight prices from Seoul averaging around $734.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Seoul to Colorado is on a Sunday when prices can be found for as low as $868. On the other hand, Tuesday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,255.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the afternoon when flights can be purchased for as low as $1,032. In the evening is when there is more demand to fly to Colorado, so prices are often more expensive at around $1,439 per ticket.

How far in advance should I book a flight 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 $939 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 $691 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	14h 50m
Direct flights	None

The fastest flight from Seoul to Colorado takes 14h 50m

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

Search flight deals

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 6 operators available for flights from Seoul to Colorado as of December 2025.
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 9,092 reviews	Search United Airlines flights
Air Canada	PriceFrom $601	Free Cancellation	Rating 7.1 10,525 reviews	Search Air Canada flights
Delta	PriceFrom $620	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Asiana Airlines	PriceFrom $688	Free Cancellation	Rating 8.2 493 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,186 reviews	Search Korean Air flights
American Airlines	PriceFrom $695	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines 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.