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$294+ Cheap flights from Incheon Intl (ICN) to Colorado

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
avr. 22 — avr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheap flight deals from Incheon Intl to Colorado

Keep the following information in mind while searching for Incheon Intl to Colorado flight deals. Data was last updated avril 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$638
(Trip.com)

One-way from

$294
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$1,230
Provider with most accurate pricing for Seoul (SEL)-Denver Intl flight deals.
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From Incheon Intl to Colorado
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One-way flight from Incheon Intl to Colorado
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Highest demand for flights based on searches. 15% potential increase in price ($209 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Incheon Intl to Colorado

Cheapest flights from Incheon Intl to Colorado
Explore the most affordable flight options available from Incheon Intl to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on avril 17, 2025.

This Trip.com deal was found by Cheapflights users on 4/17. 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.
sam. 5/174:00 pmICN - DEN
1 stop19h 00mMultiple Airlines
sam. 5/2410:16 pmDEN - ICN
1 stop28h 04mMultiple Airlines
Deal found 4/17$638
This WhyPayMore deal was found by Cheapflights users on 4/16. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/185:45 pmICN - DEN
1 stop15h 28mAir Canada
jeu. 9/256:08 amDEN - ICN
2 stops18h 57mAir Canada
Deal found 4/16$696
This United Airlines deal was found by Cheapflights users on 4/16. 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.
jeu. 4/174:50 pmICN - DEN
1 stop32h 30mUnited Airlines
mar. 4/291:27 pmDEN - ICN
1 stop23h 53mUnited Airlines
Deal found 4/16$726
This WhyPayMore deal was found by Cheapflights users on 4/16. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/187:40 pmICN - DEN
1 stop14h 30mKorean Air
mer. 9/2412:59 amDEN - ICN
1 stop22h 11mKorean Air
Deal found 4/16$832
This Delta deal was found by Cheapflights users on 4/16. 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.
lun. 6/237:20 pmICN - DEN
2 stops29h 03mDelta
lun. 7/215:40 amDEN - ICN
2 stops19h 50mDelta
Deal found 4/16$863
This Gotogate deal was found by Cheapflights users on 4/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/128:45 pmICN - DEN
1 stop29h 42mWestJet
dim. 7/277:40 pmDEN - ICN
1 stop32h 05mWestJet
Deal found 4/17$944
This United Airlines deal was found by Cheapflights users on 4/16. 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.
lun. 10/134:50 pmICN - COS
2 stops22h 00mUnited Airlines
dim. 10/196:25 pmCOS - ICN
2 stops29h 35mUnited Airlines
Deal found 4/16$946
This Delta deal was found by Cheapflights users on 4/16. 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.
lun. 10/137:20 pmICN - COS
2 stops36h 53mDelta
dim. 10/195:55 pmCOS - ICN
1 stop30h 25mDelta
Deal found 4/16$1,068
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
dim. 8/179:25 pmICN - DEN
2 stops39h 22mAlaska Airlines
jeu. 8/288:53 pmDEN - ICN
2 stops31h 07mAlaska Airlines
Deal found 4/17$1,170
This American Airlines deal was found by Cheapflights users on 4/16. 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.
mer. 10/15:25 pmICN - DEN
1 stop19h 28mAmerican Airlines
mer. 10/229:05 amDEN - ICN
1 stop39h 25mAmerican Airlines
Deal found 4/16$1,175
This Philippine Airlines deal was found by Cheapflights users on 4/17. 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.
ven. 9/268:30 pmICN - DEN
2 stops54h 36mPhilippine Airlines
ven. 10/108:57 pmDEN - ICN
2 stops55h 23mPhilippine Airlines
Deal found 4/17$1,295
This WhyPayMore deal was found by Cheapflights users on 4/16. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/121:20 amICN - COS
2 stops33h 50mQatar Airways
dim. 10/1912:13 pmCOS - ICN
2 stops37h 52mQatar Airways
Deal found 4/16$2,534

Cheapflights Fare Finder

Customize your flight search to find flights from Incheon Intl to Colorado 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 avril 17, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Colorado that are best for you.

Fly from

Incheon Intl

Fly to

Colorado

Route

Depart

Return

Price

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

sam. 5/17

4:00 pm-8:00 pm

1 stop19h 00m

Denver Intl

sam. 5/24

10:16 pm-5:20 pm

1 stop28h 04m

$638

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

jeu. 9/18

5:45 pm-6:13 pm

1 stop15h 28m

Denver Intl

jeu. 9/25

6:08 am-4:05 pm

2 stops18h 57m

$696

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

sam. 5/3

11:30 am-10:15 pm

2 stops25h 45m

Denver Intl

dim. 5/11

8:57 pm-3:00 pm

2 stops27h 03m

$779

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

jeu. 9/18

7:40 pm-7:10 pm

1 stop14h 30m

Denver Intl

mer. 9/24

12:59 am-2:10 pm

1 stop22h 11m

$832

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

lun. 6/23

7:20 pm-9:23 am

2 stops29h 03m

Denver Intl

lun. 7/21

5:40 am-4:30 pm

2 stops19h 50m

$863

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

sam. 7/12

8:45 pm-11:27 am

1 stop29h 42m

Denver Intl

dim. 7/27

7:40 pm-6:45 pm

1 stop32h 05m

$944

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

lun. 10/13

4:50 pm-11:50 pm

2 stops22h 00m

Colorado Springs

dim. 10/19

6:25 pm-3:00 pm

2 stops29h 35m

$946

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

lun. 10/13

7:20 pm-5:13 pm

2 stops36h 53m

Colorado Springs

dim. 10/19

5:55 pm-3:20 pm

1 stop30h 25m

$1,068

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

dim. 8/17

9:25 pm-9:47 pm

2 stops39h 22m

Denver Intl

jeu. 8/28

8:53 pm-7:00 pm

2 stops31h 07m

$1,170

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

mer. 10/1

5:25 pm-9:53 pm

1 stop19h 28m

Denver Intl

mer. 10/22

9:05 am-3:30 pm

1 stop39h 25m

$1,175

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 31 results
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Best time to book a flight from Incheon Intl to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Incheon Intl 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 Incheon Intl Airport to Colorado

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

Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Colorado (average of $197). Flying from Incheon Intl Airport to Colorado in March is currently the most expensive (average of $278). 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 ICN to CO?

Find hourly flight availability from Incheon Intl to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated avril 17, 2025.

When flying from Incheon Intl Airport to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated avril 17, 2025.
Read through reviews of airlines operating flights from Seoul to Colorado, such as Korean Air, Singapore Airlines and Delta. 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
1,064 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,064 reviews
Korean Air
8.4
Very good
1,064 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,288 reviews
Korean Air
8.4
Very good
1,064 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Delta
8.0
Very good
7,917 reviews
Korean Air
8.4
Very good
1,064 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Alaska Airlines
8.0
Very good
9,882 reviews
Korean Air
8.4
Very good
1,064 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Qatar Airways
7.4
Good
3,554 reviews
Korean Air
8.4
Very good
1,064 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Colorado. 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 Incheon Intl Airport to Colorado one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $440. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Incheon Intl Airport to Colorado for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Incheon Intl to Colorado 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 Incheon Intl Airport to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Colorado (average of $197). Flying from Incheon Intl Airport to Colorado in March is currently the most expensive (average of $278). 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.

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Alternative routes for Incheon Intl to Colorado

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Top 6 airlines flying from Incheon Intl to Colorado

Discover the top 6 airlines that operate flights from Incheon Intl to Colorado. 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 avril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$685Average$1,354FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$696Average$897FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$811Average$980FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$953Average$1,122FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,006Average$1,035FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$1,014Average$1,295FlexibilityNo cancel feeOn-time76%

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