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

WestJet and Japan Airlines are the most popular carriers operating from Colorado to Seoul

How long does it take to fly to Seoul?

If you’re flying from a popular airport in Colorado, such as Colorado Springs or Denver, and flying into Seoul, then you can expect flight times to average 19h 05m and 20h 03m, respectively.

What airlines fly to Seoul?

Air Canada, Asiana Airlines and United Airlines are the top three most popular airlines that fly to Seoul from Colorado according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 8 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Colorado to Seoul?

Prices for flights from Colorado to Seoul were last updated today.

How many operators does momondo search for flights from Colorado to Seoul?

As of June 2026, there are 8 operators available to choose from for flights from Colorado to Seoul.

How old do you have to be to fly from Colorado to Seoul?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Seoul.

What documentation or ID do you need to fly to Seoul?

The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$374 Cheap Flights from Colorado to Seoul in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Seoul

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:15 pm - 6:45 pm

DEN

ICN

15h 30m

1 stop

8:45 pm - 11:20 am

ICN

DEN

29h 35m

1 stop

$828WestJet

Wed, Aug 19 - Thu, Sep 17

10:39 pm - 3:50 pm

DEN

ICN

26h 11m

1 stop

1:00 pm - 12:40 am

ICN

DEN

26h 40m

1 stop

$836Multiple Airlines

Sun, Aug 9 - Mon, Aug 24

10:29 pm - 4:30 am

DEN

ICN

39h 01m

1 stop

1:00 pm - 2:37 pm

ICN

DEN

16h 37m

1 stop

$840Multiple Airlines

Tue, Sep 22 - Tue, Oct 13

12:15 pm - 6:45 pm

DEN

ICN

15h 30m

1 stop

8:45 pm - 11:20 am

ICN

DEN

29h 35m

1 stop

$847WestJet

Sun, Aug 30 - Sun, Sep 13

7:31 am - 11:00 am

DEN

GMP

36h 29m

2 stops

8:50 pm - 6:18 pm

GMP

DEN

36h 28m

2 stops

$998China Eastern

Tue, Jul 7 - Wed, Jul 15

5:40 am - 3:45 pm

COS

ICN

19h 05m

1 stop

5:50 pm - 10:55 pm

ICN

COS

20h 05m

1 stop

$1,041American Airlines

Thu, Aug 27 - Thu, Sep 10

5:40 am - 3:45 pm

COS

ICN

19h 05m

1 stop

5:50 pm - 12:00 pm

ICN

COS

33h 10m

1 stop

$1,047American Airlines

Tue, Sep 1 - Wed, Sep 9

7:31 am - 11:00 am

DEN

GMP

36h 29m

2 stops

8:50 pm - 6:18 pm

GMP

DEN

36h 28m

2 stops

$1,063China Eastern

Fri, Jul 10 - Wed, Jul 15

12:37 pm - 3:45 pm

COS

ICN

36h 08m

2 stops

5:50 pm - 10:55 pm

ICN

COS

20h 05m

1 stop

$1,248Japan Airlines

Thu, Aug 27 - Thu, Sep 10

7:00 am - 9:15 pm

DEN

GMP

23h 15m

2 stops

8:00 am - 5:35 pm

GMP

DEN

24h 35m

2 stops

$1,279Japan Airlines

Sun, Aug 30 - Sun, Sep 13

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Colorado to Seoul

Our best Delta deals on Colorado to Seoul flight tickets

Delta

Sep 28

COS8:16 amColorado Springs

16h 04m

1 stop

ICN3:20 pmIncheon Intl

Nov 9

ICN6:35 pmIncheon Intl

14h 39m

1 stop

COS5:14 pmColorado Springs

$1,456

Delta

Oct 3

COS8:00 amColorado Springs

16h 20m

1 stop

ICN3:20 pmIncheon Intl

Nov 14

ICN6:35 pmIncheon Intl

19h 55m

1 stop

COS10:30 pmColorado Springs

$1,556

Delta

Oct 3

COS6:14 pmColorado Springs

31h 36m

2 stops

ICN4:50 pmIncheon Intl

Nov 14

ICN6:35 pmIncheon Intl

14h 39m

1 stop

COS5:14 pmColorado Springs

$1,561

United Airlines flights from Colorado to Seoul

Our best United Airlines deals on Colorado to Seoul flight tickets

United Airlines

Sep 28

COS11:57 amColorado Springs

25h 23m

2 stops

ICN4:20 amIncheon Intl

Nov 9

ICN12:45 pmIncheon Intl

19h 39m

2 stops

COS4:24 pmColorado Springs

$1,460

United Airlines

Oct 1

COS7:40 amColorado Springs

29h 40m

2 stops

ICN4:20 amIncheon Intl

Nov 5

ICN6:00 pmIncheon Intl

18h 08m

2 stops

COS8:08 pmColorado Springs

$1,461

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 8/19

12:15 pm-6:45 pm

1 stop15h 30m

Incheon Intl

Thu 9/17

8:45 pm-11:20 am

1 stop29h 35m

$828

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 8/9

10:39 pm-3:50 pm

1 stop26h 11m

Incheon Intl

Mon 8/24

1:00 pm-12:40 am

1 stop26h 40m

$836

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 9/22

10:29 pm-4:30 am

1 stop39h 01m

Incheon Intl

Tue 10/13

1:00 pm-2:37 pm

1 stop16h 37m

$840

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 8/30

12:15 pm-6:45 pm

1 stop15h 30m

Incheon Intl

Sun 9/13

8:45 pm-11:20 am

1 stop29h 35m

$847

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Tue 7/7

7:31 am-11:00 am

2 stops36h 29m

Seoul Gimpo Intl

Wed 7/15

8:50 pm-6:18 pm

2 stops36h 28m

$998

Quickest round-trip

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Thu 8/27

5:40 am-3:45 pm

1 stop19h 05m

Incheon Intl

Thu 9/10

5:50 pm-10:55 pm

1 stop20h 05m

$1,041

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Tue 9/1

5:40 am-3:45 pm

1 stop19h 05m

Incheon Intl

Wed 9/9

5:50 pm-12:00 pm

1 stop33h 10m

$1,047

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Fri 7/10

7:31 am-11:00 am

2 stops36h 29m

Seoul Gimpo Intl

Wed 7/15

8:50 pm-6:18 pm

2 stops36h 28m

$1,063

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Thu 8/27

12:37 pm-3:45 pm

2 stops36h 08m

Incheon Intl

Thu 9/10

5:50 pm-10:55 pm

1 stop20h 05m

$1,248

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Sun 8/30

7:00 am-9:15 pm

2 stops23h 15m

Seoul Gimpo Intl

Sun 9/13

8:00 am-5:35 pm

2 stops24h 35m

$1,279

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 Colorado to Seoul

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 Seoul?

The month of March is another great option to travel to Seoul, with average flight prices from Colorado averaging around $70.

How far in advance should I book a flight from Colorado to Seoul?

You are more likely to see cheaper flights to Seoul from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,288 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Colorado for as low as $958 on momondo.

Can stopping save me money on Colorado to Seoul flights?

You could potentially save up to 42% on your flight if you consider stops on a Colorado to Seoul flight.

Cheap Colorado to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Seoul

Fastest flight time	19h 05m
Direct flights	None

The fastest flight from Colorado to Seoul takes 19h 05m

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

Search flight deals

Frequently asked questions about flying from Colorado to Seoul

When did momondo last update prices for flights from Colorado to Seoul?
Prices for flights from Colorado to Seoul were last updated today.
How many operators does momondo search for flights from Colorado to Seoul?
As of June 2026, there are 8 operators available to choose from for flights from Colorado to Seoul.
How old do you have to be to fly from Colorado to Seoul?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Seoul.
What documentation or ID do you need to fly to Seoul?
The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Colorado to Seoul

Compare and see reviews for airlines that fly from Colorado to Seoul with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $187	Free Cancellation	Rating 7.4 9,866 reviews	Search United Airlines flights
Delta	PriceFrom $483	Free Cancellation	Rating 7.8 8,423 reviews	Search Delta flights
Korean Air	PriceFrom $519	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
AIR PREMIA	PriceFrom $608	Free Cancellation	Rating 8.1 97 reviews	Search AIR PREMIA flights
American Airlines	PriceFrom $816	Free Cancellation	Rating 7.1 11,722 reviews	Search American Airlines flights
Air Canada	PriceFrom $906	Free Cancellation	Rating 7.1 11,229 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $1,035	Free Cancellation	Rating 8.1 545 reviews	Search Asiana Airlines flights
WestJet	PriceFrom $1,364	Free Cancellation	Rating 7.2 3,375 reviews	Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Seoul?

Finding the right flight to Seoul from Colorado 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 Seoul quick and easy, saving you time and money.

Can I find flights from Colorado to Seoul with flexible booking policies on momondo?

All flight searches from Colorado to Seoul on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Colorado to Seoul?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from Colorado.

I’m not ready to book a flight from Colorado to Seoul right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Seoul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seoul and let you know when they change.

An easier way to manage your Seoul trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 7/21

Tue 7/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Korea

Nearby airports

Airlines

Cabin classes

Other South Korea destinations

Other flights from Colorado

Complete your trip

Feeling lucky

Fly into one of these airports located in Seoul

Seoul Gimpo Intl Airport

Incheon Intl Airport

Cheap flights from Colorado to Seoul from $374

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Seoul departing on 8/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Colorado to Seoul

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Delta flights from Colorado to Seoul

Our best Delta deals on Colorado to Seoul flight tickets

United Airlines flights from Colorado to Seoul

Our best United Airlines deals on Colorado to Seoul flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Seoul that are best for you.

See travel insights to Seoul from

How to get the cheapest flight ticket from Colorado to Seoul

What is the cheapest month to fly to Seoul?

How far in advance should I book a flight from Colorado to Seoul?

Can stopping save me money on Colorado to Seoul flights?

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

What airlines fly to Seoul?

How long does it take to fly to Seoul?

Cheap Colorado to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Seoul

Fastest flight time

Direct flights

Frequently asked questions about flying from Colorado to Seoul

Best airlines flying from Colorado to Seoul

Compare and see reviews for airlines that fly from Colorado to Seoul with momondo

Why use momondo?

An easier way to manage your Seoul trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul

Fly your favorite airline to Seoul

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seoul

List of cabin classes available on flights landing in Seoul. Availability may vary depending on flight origin and airline.

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Colorado

According to popular flight searches on momondo this year

Complete your trip to Seoul

Explore popular destinations other users love

According to popular flight searches on momondo this year