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$371+ Cheap flights from South Korea 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap flight deals from South Korea to Colorado

Keep the following information in mind while searching for South Korea to Colorado flight deals. Data was last updated septiembre 15, 2025.

Round-trip from

$454
(Kiwi.com)

One-way from

$371
(Kiwi.com)

Popular in

October

Cheapest in

November

Average price

$897
From South Korea to Colorado
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One-way flight from South Korea to Colorado
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from South Korea to Colorado

Cheapest flights from South Korea to Colorado
Explore the most affordable flight options available from South Korea to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
dom. 10/268:35 pmICN - DEN
1 stop19h 00mMultiple Airlines
sáb. 12/68:45 amDEN - ICN
1 stop17h 50mMultiple Airlines
Deal found 9/14$454
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 10/248:35 pmICN - DEN
2 stops32h 25mAlaska Airlines
sáb. 11/157:04 pmDEN - ICN
2 stops32h 21mAlaska Airlines
Deal found 9/14$487
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 10/248:35 pmICN - DEN
2 stops32h 25mAlaska Airlines
vie. 11/147:19 pmDEN - ICN
2 stops32h 06mAlaska Airlines
Deal found 9/14$496
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
dom. 10/268:35 pmICN - DEN
1 stop19h 00mMultiple Airlines
mié. 12/36:00 amDEN - ICN
1 stop20h 35mMultiple Airlines
Deal found 9/14$497
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
dom. 10/268:35 pmICN - DEN
2 stops53h 59mAlaska Airlines
jue. 12/46:59 pmDEN - ICN
2 stops55h 36mAlaska Airlines
Deal found 9/14$530
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
mié. 10/299:25 pmICN - DEN
2 stops36h 41mAlaska Airlines
mié. 11/57:04 pmDEN - ICN
2 stops55h 31mAlaska Airlines
Deal found 9/13$537
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
mié. 10/299:25 pmICN - DEN
2 stops29h 09mAlaska Airlines
jue. 12/412:41 pmDEN - ICN
2 stops61h 54mAlaska Airlines
Deal found 9/14$547
This Jetabroad deal was found by Cheapflights users on 9/14. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/299:25 pmICN - DEN
2 stops29h 09mHawaiian Airlines
sáb. 11/151:23 pmDEN - ICN
1 stop37h 12mHawaiian Airlines
Deal found 9/14$574
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
dom. 10/128:35 pmICN - DEN
2 stops56h 25mAlaska Airlines
vie. 10/177:02 pmDEN - ICN
2 stops56h 58mAlaska Airlines
Deal found 9/15$586
This WhyPayMore deal was found by Cheapflights users on 9/15. 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.
lun. 9/228:35 pmICN - DEN
1 stop16h 27mHawaiian Airlines
sáb. 9/271:06 pmDEN - ICN
1 stop38h 29mHawaiian Airlines
Deal found 9/15$610
This Trip.com deal was found by Cheapflights users on 9/13. 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.
mié. 10/291:20 pmICN - DEN
1 stop19h 30mMultiple Airlines
mié. 11/511:45 amDEN - ICN
1 stop25h 35mMultiple Airlines
Deal found 9/13$624
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mié. 10/2911:55 amICN - COS
2 stops25h 04mUnited Airlines
mié. 11/512:54 pmCOS - ICN
2 stops24h 46mUnited Airlines
Deal found 9/14$661

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Korea 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 septiembre 15, 2025.
Use the filters below to find and compare flights from South Korea to Colorado that are best for you.

Fly from

South Korea

Fly to

Colorado

Route

Depart

Return

Price

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

dom. 10/12

8:35 pm-2:00 pm

2 stops56h 25m

Denver Intl

vie. 10/17

7:02 pm-7:00 pm

2 stops56h 58m

$586

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

lun. 2/2

8:35 pm-4:24 pm

1 stop35h 49m

Denver Intl

mié. 2/4

7:50 pm-6:35 pm

1 stop30h 45m

$620

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

vie. 10/10

7:20 pm-11:14 pm

1 stop18h 54m

Denver Intl

sáb. 11/22

12:18 pm-4:30 pm

1 stop36h 12m

$635

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

vie. 10/10

6:40 pm-10:00 am

1 stop30h 20m

Denver Intl

lun. 11/3

12:25 pm-4:30 pm

1 stop36h 05m

$635

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

jue. 10/30

8:05 pm-11:14 pm

1 stop18h 09m

Denver Intl

dom. 12/7

12:05 pm-4:30 pm

2 stops36h 25m

$635

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

mar. 11/25

8:05 pm-9:23 am

2 stops29h 18m

Denver Intl

dom. 12/7

3:54 pm-4:30 pm

2 stops32h 36m

$635

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

mié. 10/29

8:05 pm-11:14 pm

1 stop18h 09m

Denver Intl

dom. 12/7

6:05 am-4:30 pm

1 stop18h 25m

$635

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

vie. 10/24

7:20 pm-10:25 pm

2 stops18h 05m

Denver Intl

jue. 11/13

6:05 am-4:30 pm

1 stop18h 25m

$635

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

mié. 10/29

11:55 am-9:59 pm

2 stops25h 04m

Colorado Springs

mié. 11/5

12:54 pm-5:40 am

2 stops24h 46m

$661

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

mié. 10/29

5:55 pm-10:09 pm

1 stop19h 14m

Colorado Springs

mié. 11/5

5:45 am-4:45 pm

1 stop19h 00m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 42 results
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Best time to book a flight from South Korea to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from South Korea 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 South Korea to Colorado

What is the cheapest month to book a flight from South Korea to Colorado?

Currently, October is the cheapest month in which you can book a flight from South Korea to Colorado (average of $197). Flying from South Korea 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 KR to CO?

Find hourly flight availability from South Korea 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 septiembre 15, 2025.

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

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 septiembre 15, 2025.
Read through reviews of airlines operating flights from South Korea to Colorado, such as Korean Air, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
8.0
Very good
7,954 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
8,929 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
American Airlines
7.2
Good
10,000 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,000 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from South Korea to Colorado. 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 South Korea to Colorado?

    For as low as $635, Alaska Airlines can have you in Colorado from South Korea in 18h 54m. There are 6186 mi between South Korea and Colorado. This flight may include one or multiple stops.

  • Can I find deals for flights from South Korea to Colorado that include hotel bookings?

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

  • How can I find direct flights from South Korea to Colorado?

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

  • Can I find deals for business class flights from South Korea to Colorado?

    Yes. Cheapflights offers flight deals from South Korea 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 South Korea to Colorado?

    Currently, October is the cheapest month in which you can book a flight from South Korea to Colorado (average of $197). Flying from South Korea 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.

See more FAQs

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Alternative routes for South Korea to Colorado

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Top 6 airlines flying from South Korea to Colorado

Discover the top 6 airlines that operate flights from South Korea 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$589Average$976FlexibilityNo cancel feeOn-time69%
DeltaCheapest$634Average$1,007FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$686Average$847FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$757Average$897FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$783Average$1,020FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$800Average$1,070FlexibilityNo cancel feeOn-time76%

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