HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Incheon Intl

$394+ Cheap flights from Colorado to Incheon Intl (ICN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Incheon Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to Incheon Intl

Keep the following information in mind while searching for Colorado to Incheon Intl flight deals. Data was last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$763
(Kiwi.com)

One-way from

$394
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,120
Provider with most accurate pricing for Denver Intl-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Seoul (SEL) flights.
Search Deals
From Colorado to Incheon Intl
Search Deals
One-way flight from Colorado to Incheon Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($272 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Colorado to Incheon Intl

Cheapest flights from Colorado to Incheon Intl
Explore the most affordable flight options available from Colorado to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:30 amDEN - ICN
1 stop30h 40mMultiple Airlines
Thu 11/279:20 pmICN - DEN
2 stops22h 38mMultiple Airlines
Deal found 10/23$797
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:55 pmDEN - ICN
2 stops30h 40mMultiple Airlines
Mon 11/176:55 pmICN - DEN
1 stop32h 50mMultiple Airlines
Deal found 10/20$802
This Trip.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:00 amDEN - ICN
1 stop22h 30mMultiple Airlines
Fri 12/126:55 pmICN - DEN
2 stops30h 00mMultiple Airlines
Deal found 10/22$803
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:55 pmDEN - ICN
1 stop25h 25mMultiple Airlines
Sun 11/169:20 pmICN - DEN
2 stops43h 37mMultiple Airlines
Deal found 10/22$817
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:55 pmDEN - ICN
1 stop25h 25mMultiple Airlines
Tue 11/189:20 pmICN - DEN
2 stops38h 44mMultiple Airlines
Deal found 10/22$837
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/84:56 pmDEN - ICN
1 stop35h 34mMultiple Airlines
Tue 11/189:20 pmICN - DEN
2 stops38h 44mMultiple Airlines
Deal found 10/22$841
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:29 pmDEN - ICN
2 stops45h 06mMultiple Airlines
Sun 12/146:55 pmICN - DEN
1 stop33h 35mMultiple Airlines
Deal found 10/21$849
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/49:58 amDEN - ICN
1 stop27h 22mMultiple Airlines
Sun 11/169:20 pmICN - DEN
2 stops43h 37mMultiple Airlines
Deal found 10/22$851
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:35 pmCOS - ICN
2 stops24h 05mUnited Airlines
Fri 12/1212:45 pmICN - COS
2 stops25h 14mUnited Airlines
Deal found 10/20$897
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amCOS - ICN
2 stops18h 15mUnited Airlines
Tue 12/3012:45 pmICN - COS
2 stops27h 14mUnited Airlines
Deal found 10/22$1,229
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:33 amCOS - ICN
1 stop19h 12mAmerican Airlines
Fri 12/127:15 pmICN - COS
1 stop17h 15mAmerican Airlines
Deal found 10/20$1,344
This Booking.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/213:35 pmCOS - ICN
2 stops33h 35mAir Canada
Fri 11/286:55 pmICN - COS
2 stops19h 04mAir Canada
Deal found 10/22$1,416

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Incheon Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
Use the filters below to find and compare flights from Colorado to Incheon Intl Airport that are best for you.

Fly from

Colorado

Fly to

Incheon Intl

Route

Depart

Return

Price

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Sat 12/6

12:50 pm-5:40 am

2 stops24h 50m

Incheon Intl

Sat 12/13

12:45 pm-3:37 pm

2 stops18h 52m

$897

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Fri 12/5

1:35 pm-5:40 am

2 stops24h 05m

Incheon Intl

Fri 12/12

12:45 pm-9:59 pm

2 stops25h 14m

$897

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Mon 2/16

11:35 am-5:40 am

2 stops26h 05m

Incheon Intl

Fri 2/20

6:00 pm-8:02 pm

2 stops18h 02m

$1,009

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Sat 2/21

11:36 am-5:40 am

2 stops26h 04m

Incheon Intl

Sat 3/7

12:45 pm-10:02 pm

2 stops25h 17m

$1,009

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 2/26

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Mon 3/2

10:45 am-5:35 pm

1 stop46h 50m

$1,022

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 1/3

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Fri 1/30

12:10 am-4:34 pm

2 stops32h 24m

$1,183

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Mon 3/9

7:04 pm-6:35 pm

2 stops56h 31m

Incheon Intl

Sun 3/22

8:35 pm-11:51 pm

2 stops42h 16m

$1,226

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 3/31

5:15 pm-6:35 pm

1 stop34h 20m

Incheon Intl

Sat 4/25

8:35 pm-10:33 am

2 stops28h 58m

$1,286

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 4/1

7:50 pm-6:35 pm

1 stop31h 45m

Incheon Intl

Sat 4/25

8:35 pm-10:33 am

2 stops28h 58m

$1,286

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 4/1

7:05 pm-4:05 pm

2 stops30h 00m

Incheon Intl

Wed 7/22

5:45 pm-8:50 am

2 stops30h 05m

$1,322

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Colorado to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Incheon Intl Airport

What is the cheapest month to book a flight from Colorado to Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Colorado to Incheon Intl Airport (average of $103). Flying from Colorado to Incheon Intl Airport in June is currently the most expensive (average of $1,490). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to ICN?

Find hourly flight availability from Colorado to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2025.

It’s typically best to fly out from Colorado to Incheon Intl Airport in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Colorado to Incheon Intl Airport?

    Departing from Colorado to Incheon Intl Airport will take you 24h 50m. The distance between Colorado and Incheon Intl Airport is about 6242 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Colorado to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on Colorado to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Incheon Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Incheon Intl.

  • Can I find deals for business class flights from Colorado to Incheon Intl?

    Yes. Cheapflights offers flight deals from Colorado to Incheon Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Colorado to Incheon Intl Airport (average of $103). Flying from Colorado to Incheon Intl Airport in June is currently the most expensive (average of $1,490). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Incheon Intl flights
John F Kennedy Intl to Incheon Intl flights
Seattle to Incheon Intl flights
San Francisco to Incheon Intl flights
Dallas/Fort Worth to Incheon Intl flights
Dulles Intl to Incheon Intl flights
Los Angeles to Gimpo Intl flights
Newark to Incheon Intl flights
LaGuardia to Incheon Intl flights
John F Kennedy Intl to Gimpo Intl flights
Detroit to Incheon Intl flights
San Francisco to Gimpo Intl flights
O'Hare Intl to Incheon Intl flights
Atlanta to Incheon Intl flights
Ontario to Incheon Intl flights
Seattle to Gimpo Intl flights
Boston to Incheon Intl flights
Reagan-National to Incheon Intl flights
Honolulu to Incheon Intl flights
Baltimore to Incheon Intl flights
Hobby to Incheon Intl flights
Newark to Gimpo Intl flights
San Jose to Incheon Intl flights
Santa Ana to Incheon Intl flights
Dulles Intl to Gimpo Intl flights
Minneapolis to Incheon Intl flights
Burbank to Incheon Intl flights
Dallas/Fort Worth to Gimpo Intl flights
Las Vegas to Incheon Intl flights
Love Field to Incheon Intl flights
Orlando to Incheon Intl flights
Philadelphia to Incheon Intl flights
Reagan-National to Gimpo Intl flights
George Bush Intcntl to Incheon Intl flights
O'Hare Intl to Gimpo Intl flights
San Diego to Incheon Intl flights
Denver to Incheon Intl flights
Honolulu to Gimpo Intl flights
Austin to Incheon Intl flights
LaGuardia to Gimpo Intl flights
Portland to Incheon Intl flights
Atlanta to Gimpo Intl flights
George Bush Intcntl to Gimpo Intl flights
Boston to Gimpo Intl flights
Sky Harbor Intl to Incheon Intl flights
Salt Lake City to Incheon Intl flights
Tampa to Incheon Intl flights
Miami to Incheon Intl flights

Top 10 airlines flying from Colorado to Incheon Intl

Discover the top 10 airlines that operate flights from Colorado to Incheon Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$129FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$189Average$1,274FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$585Average$615FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$587Average$1,093FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$748Average$1,213FlexibilityNo cancel feeOn-time60%
Turkish AirlinesCheapest$755Average$895FlexibilityNo cancel feeOn-time77%
Asiana AirlinesCheapest$757Average$1,233FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$843Average$1,475FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$866Average$1,216FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$1,102FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.