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

Air Canada, EVA Air, and Japan Airlines 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 39% 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 16h 10m on average. Another popular route from Seoul to Colorado is flying from Seoul to Denver, which will take roughly 18h 54m. 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 January 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.

$382 Cheap Flights from Seoul to Colorado in 2026

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Find the cheapest flights from Seoul to Colorado

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 pm - 10:40 pm

ICN

DEN

19h 25m

1 stop

11:31 pm - 4:45 pm

DEN

ICN

25h 14m

2 stops

$642American Airlines

Mon, Feb 16 - Sun, Feb 22

7:40 pm - 3:02 pm

ICN

DEN

35h 22m

1 stop

6:20 am - 3:30 pm

DEN

ICN

18h 10m

1 stop

$645Delta

Tue, Feb 24 - Tue, Mar 10

5:45 pm - 6:07 pm

ICN

DEN

39h 22m

2 stops

11:20 am - 4:05 pm

DEN

ICN

37h 45m

2 stops

$656Air Canada

Thu, Apr 23 - Thu, May 14

9:20 pm - 10:30 pm

ICN

DEN

16h 10m

1 stop

7:05 pm - 5:00 am

DEN

ICN

18h 55m

1 stop

$661Asiana Airlines

Thu, Apr 23 - Thu, May 14

5:45 pm - 6:07 pm

ICN

DEN

39h 22m

2 stops

9:25 am - 4:05 pm

DEN

ICN

15h 40m

1 stop

$665Air Canada

Thu, Apr 23 - Thu, May 14

5:55 pm - 5:44 pm

ICN

DEN

15h 49m

1 stop

7:05 pm - 5:10 pm

DEN

ICN

30h 05m

1 stop

$673Air Canada

Fri, Feb 27 - Mon, Mar 2

6:00 pm - 8:44 am

ICN

COS

30h 44m

2 stops

5:59 am - 4:15 pm

COS

ICN

18h 16m

2 stops

$674United Airlines

Fri, Feb 20 - Tue, Feb 24

6:00 pm - 10:09 pm

ICN

DEN

20h 09m

2 stops

9:06 pm - 3:15 pm

DEN

ICN

27h 09m

2 stops

$674United Airlines

Tue, Feb 24 - Tue, Mar 10

8:00 am - 7:34 pm

GMP

DEN

26h 34m

2 stops

7:00 am - 10:55 am

DEN

GMP

36h 55m

2 stops

$1,601Japan Airlines

Fri, Mar 13 - Fri, Mar 20

8:00 am - 11:25 am

GMP

DEN

19h 25m

2 stops

8:04 pm - 6:20 pm

DEN

GMP

31h 16m

2 stops

$1,960Japan Airlines

Sat, Feb 28 - Sat, Mar 14

Asiana Airlines flights from Seoul to Colorado

Our best Asiana Airlines deals on Seoul to Colorado flight tickets

Asiana Airlines

Apr 23

ICN9:20 pmIncheon Intl

16h 10m

1 stop

DEN10:30 pmDenver Intl

May 14

DEN7:05 pmDenver Intl

18h 55m

1 stop

ICN5:00 amIncheon Intl

$661

Asiana Airlines

Mar 16

ICN8:50 pmIncheon Intl

16h 30m

1 stop

DEN10:20 pmDenver Intl

Mar 24

DEN8:51 pmDenver Intl

17h 14m

1 stop

ICN5:05 amIncheon Intl

$704

Air Canada flights from Seoul to Colorado

Our best Air Canada deals on Seoul to Colorado flight tickets

Air Canada

Apr 23

ICN5:45 pmIncheon Intl

39h 22m

2 stops

DEN6:07 pmDenver Intl

May 14

DEN11:20 amDenver Intl

37h 45m

2 stops

ICN4:05 pmIncheon Intl

$656

Air Canada

Apr 23

ICN5:45 pmIncheon Intl

39h 22m

2 stops

DEN6:07 pmDenver Intl

May 14

DEN9:25 amDenver Intl

15h 40m

1 stop

ICN4:05 pmIncheon Intl

$665

Air Canada

Feb 27

ICN5:55 pmIncheon Intl

15h 49m

1 stop

DEN5:44 pmDenver Intl

Mar 2

DEN7:05 pmDenver Intl

30h 05m

1 stop

ICN5:10 pmIncheon Intl

$673

Fly from

Fly to

Route

Depart

Return

Price

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 2/16

7:15 pm-10:40 pm

1 stop19h 25m

Denver Intl

Sun 2/22

11:31 pm-4:45 pm

2 stops25h 14m

$642

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 2/24

7:40 pm-3:02 pm

1 stop35h 22m

Denver Intl

Tue 3/10

6:20 am-3:30 pm

1 stop18h 10m

$645

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 4/23

5:45 pm-6:07 pm

2 stops39h 22m

Denver Intl

Thu 5/14

11:20 am-4:05 pm

2 stops37h 45m

$656

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 4/23

9:20 pm-10:30 pm

1 stop16h 10m

Denver Intl

Thu 5/14

7:05 pm-5:00 am

1 stop18h 55m

$661

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 4/23

5:45 pm-6:07 pm

2 stops39h 22m

Denver Intl

Thu 5/14

9:25 am-4:05 pm

1 stop15h 40m

$665

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/27

5:55 pm-5:44 pm

1 stop15h 49m

Denver Intl

Mon 3/2

7:05 pm-5:10 pm

1 stop30h 05m

$673

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Fri 2/20

6:00 pm-8:44 am

2 stops30h 44m

Colorado Springs

Tue 2/24

5:59 am-4:15 pm

2 stops18h 16m

$674

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 2/24

6:00 pm-10:09 pm

2 stops20h 09m

Denver Intl

Tue 3/10

9:06 pm-3:15 pm

2 stops27h 09m

$674

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Fri 3/13

8:00 am-7:34 pm

2 stops26h 34m

Denver Intl

Fri 3/20

7:00 am-10:55 am

2 stops36h 55m

$1,601

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Sat 2/28

8:00 am-11:25 am

2 stops19h 25m

Denver Intl

Sat 3/14

8:04 pm-6:20 pm

2 stops31h 16m

$1,960

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 December is, on average, the cheapest month to fly to Colorado from Seoul, with most prices found around $692. The month of January is another great option to travel to Colorado, with average flight prices from Seoul averaging around $711.

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 $920 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 10m
Direct flights	None

The fastest flight from Seoul to Colorado takes 16h 10m

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 5 operators available for flights from Seoul to Colorado as of January 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 9,208 reviews	Search United Airlines flights
Air Canada	PriceFrom $601	Free Cancellation	Rating 7.1 10,666 reviews	Search Air Canada flights
Delta	PriceFrom $620	Free Cancellation	Rating 7.9 8,123 reviews	Search Delta flights
Korean Air	PriceFrom $695	Free Cancellation	Rating 8.4 1,188 reviews	Search Korean Air flights
Asiana Airlines	PriceFrom $709	Free Cancellation	Rating 8.1 501 reviews	Search Asiana 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.