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Incheon Intl

$420+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
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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 June 26, 2025.

Round-trip from

$894
(Kiwi.com)

One-way from

$420
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$1,646
From Colorado to Incheon Intl
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One-way flight from Colorado to Incheon Intl
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Highest demand for flights based on searches. 2% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 26, 2025.

This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:30 amDEN - ICN
1 stop18h 50mDelta
Wed 10/156:40 pmICN - DEN
1 stop18h 50mDelta
Deal found 6/25$866
This American Airlines deal was found by Cheapflights users on 6/26. 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.
Tue 10/75:00 amDEN - ICN
1 stop19h 30mAmerican Airlines
Sun 11/96:50 pmICN - DEN
1 stop29h 30mAmerican Airlines
Deal found 6/26$873
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Wed 8/2010:55 pmDEN - ICN
2 stops31h 40mMultiple Airlines
Tue 9/212:45 pmICN - DEN
1 stop36h 36mMultiple Airlines
Deal found 6/25$894
This FlightHub deal was found by Cheapflights users on 6/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:45 amDEN - ICN
2 stops43h 40mChina Eastern
Tue 9/98:55 amICN - DEN
2 stops24h 26mChina Eastern
Deal found 6/26$924
This oojo deal was found by Cheapflights users on 6/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/18:20 pmDEN - ICN
1 stop31h 00mTurkish Airlines
Mon 12/110:45 amICN - DEN
1 stop46h 50mTurkish Airlines
Deal found 6/25$957
This FlightHub deal was found by Cheapflights users on 6/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:01 pmDEN - ICN
1 stop35h 04mAir Canada
Tue 9/165:45 pmICN - DEN
2 stops39h 18mAir Canada
Deal found 6/26$1,001
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Tue 9/912:02 pmCOS - ICN
2 stops25h 18mUnited Airlines
Tue 9/2311:30 amICN - COS
2 stops21h 00mUnited Airlines
Deal found 6/26$1,077
This Philippine Airlines deal was found by Cheapflights users on 6/26. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:59 amDEN - ICN
2 stops40h 21mPhilippine Airlines
Sun 8/318:30 pmICN - DEN
2 stops53h 59mPhilippine Airlines
Deal found 6/26$1,167
This Alaska Airlines deal was found by Cheapflights users on 6/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:04 pmDEN - ICN
3 stops33h 21mAlaska Airlines
Sun 11/169:25 pmICN - DEN
2 stops30h 09mAlaska Airlines
Deal found 6/25$1,253
This oojo deal was found by Cheapflights users on 6/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:49 amDEN - ICN
2 stops55h 16mEtihad Airways
Mon 2/212:50 amICN - DEN
2 stops37h 29mEtihad Airways
Deal found 6/26$1,337
This American Airlines deal was found by Cheapflights users on 6/26. 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.
Sun 10/125:08 pmCOS - ICN
1 stop31h 22mAmerican Airlines
Sun 10/266:50 pmICN - COS
1 stop19h 38mAmerican Airlines
Deal found 6/26$1,402
This Delta deal was found by Cheapflights users on 6/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:00 amCOS - ICN
1 stop16h 20mDelta
Sun 10/268:05 pmICN - COS
2 stops36h 08mDelta
Deal found 6/26$1,455

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 June 26, 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

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 8/20

10:55 pm-9:35 pm

2 stops31h 40m

Incheon Intl

Tue 9/2

12:45 pm-10:21 am

1 stop36h 36m

$894

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 9/2

6:45 am-5:25 pm

2 stops43h 40m

Incheon Intl

Tue 9/9

8:55 am-6:21 pm

2 stops24h 26m

$924

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/6

7:50 pm-5:40 pm

1 stop30h 50m

Incheon Intl

Thu 9/18

11:20 pm-5:55 pm

1 stop33h 35m

$958

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 9/9

2:01 pm-4:05 pm

1 stop35h 04m

Incheon Intl

Tue 9/16

5:45 pm-6:03 pm

2 stops39h 18m

$1,001

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Tue 9/9

12:02 pm-4:20 am

2 stops25h 18m

Incheon Intl

Tue 9/23

11:30 am-5:30 pm

2 stops21h 00m

$1,077

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 8/27

11:59 am-7:20 pm

2 stops40h 21m

Incheon Intl

Sun 8/31

8:30 pm-11:29 am

2 stops53h 59m

$1,167

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Sun 10/12

5:08 pm-3:30 pm

1 stop31h 22m

Incheon Intl

Sun 10/26

6:50 pm-11:28 pm

1 stop19h 38m

$1,402

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Sun 10/12

8:00 am-3:20 pm

1 stop16h 20m

Incheon Intl

Sun 10/26

8:05 pm-5:13 pm

2 stops36h 08m

$1,455

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 7/10

7:25 pm-4:00 am

1 stop17h 35m

Incheon Intl

Thu 7/24

2:40 pm-10:47 pm

1 stop23h 07m

$1,466

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 9/5

6:17 pm-7:00 pm

3 stops33h 43m

Incheon Intl

Sun 9/14

9:25 pm-10:40 am

2 stops28h 15m

$1,512

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 23 results
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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 $999). Flying from Colorado to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 June 26, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Incheon Intl Airport as you normally would.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Incheon Intl. Reviews last updated June 26, 2025.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, and Singapore Airlines from Colorado to Incheon Intl Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,096 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,096 reviews
Korean Air
8.4
Very good
1,096 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
449 reviews
Korean Air
8.4
Very good
1,096 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,315 reviews
Korean Air
8.4
Very good
1,096 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,963 reviews
Korean Air
8.4
Very good
1,096 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,096 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • What are the cheapest airlines to fly from Colorado to Incheon Intl Airport one-way?

    $537 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on Air Canada and Asiana Airlines, with prices starting from $569 and $620, respectively.

  • 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 $999). Flying from Colorado to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 Colorado?

Book flights to Colorado if you plan to visit one of these locations
Suwon
Seongnam
Daejeon

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Alternative routes for Colorado to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Gimpo Intl flights
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Santa Ana to Incheon Intl flights
Dallas/Fort Worth to Gimpo Intl flights
Las Vegas to Incheon Intl flights
LaGuardia to Gimpo Intl flights
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O'Hare Intl to Gimpo Intl flights
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Salt Lake City to Incheon Intl flights
Atlanta to Gimpo Intl flights
Philadelphia to Incheon Intl flights
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Boston to Gimpo Intl flights
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Burbank to Incheon Intl flights
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Denver to Incheon Intl flights
Baltimore to Gimpo Intl flights
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Honolulu to Gimpo Intl flights

Top 9 airlines flying from Colorado to Incheon Intl

Discover the top 9 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 June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$129FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$237Average$1,428FlexibilityNo cancel feeOn-time69%
DeltaCheapest$587Average$1,235FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$748Average$1,213FlexibilityNo cancel feeOn-time60%
Turkish AirlinesCheapest$755Average$897FlexibilityNo cancel feeOn-time77%
Asiana AirlinesCheapest$757Average$1,224FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$843Average$1,549FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$856Average$1,247FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$1,193FlexibilityNo cancel feeOn-time71%

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