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$372+ Cheap flights from Colorado to South Korea

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Aug 30 — Sep 61
Sun 8/30
Sun 9/6
1 adult, Economy
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Cheap flight deals from Colorado to South Korea

Cheapest flights from Colorado to South Korea
Explore the most affordable flight options available from Colorado to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.

This lastminute.com deal was found by Cheapflights users on 7/30. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
DEN
-
ICN
1 stop15h 30m
WestJet
Sun 9/138:45 pm
ICN
-
DEN
1 stop29h 35m
WestJet
Deal found 7/30$798
This Trip.com deal was found by Cheapflights users on 7/27. 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.
Tue 8/1810:39 pm
DEN
-
ICN
1 stop26h 11m
Multiple Airlines
Mon 8/2410:05 pm
ICN
-
DEN
1 stop30h 08m
Multiple Airlines
Deal found 7/27$806
This Gotogate deal was found by Cheapflights users on 7/27. 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.
Sun 9/612:15 pm
DEN
-
ICN
1 stop15h 30m
WestJet
Sun 9/208:45 pm
ICN
-
DEN
1 stop29h 35m
WestJet
Deal found 7/27$833
This Trip.com deal was found by Cheapflights users on 7/29. 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 8/712:15 pm
DEN
-
ICN
1 stop15h 30m
Multiple Airlines
Sat 8/296:00 pm
ICN
-
DEN
1 stop20h 10m
Multiple Airlines
Deal found 7/29$841
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/187:25 am
DEN
-
ICN
2 stops47h 15m
Multiple Airlines
Fri 9/47:15 pm
ICN
-
DEN
1 stop29h 26m
Multiple Airlines
Deal found 7/28$860
This Trip.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/210:23 am
DEN
-
ICN
1 stop20h 17m
Multiple Airlines
Fri 10/307:45 pm
ICN
-
DEN
1 stop18h 14m
Multiple Airlines
Deal found 7/31$862
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/2010:29 pm
DEN
-
ICN
1 stop32h 11m
Multiple Airlines
Mon 8/317:15 pm
ICN
-
DEN
1 stop18h 55m
Multiple Airlines
Deal found 7/30$876
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/210:39 pm
DEN
-
ICN
2 stops56h 01m
Multiple Airlines
Wed 10/287:45 pm
ICN
-
DEN
1 stop18h 14m
Multiple Airlines
Deal found 7/28$877
This FlightHub deal was found by Cheapflights users on 7/30. 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.
Wed 9/308:06 am
DEN
-
GMP
2 stops35h 54m
China Eastern
Tue 11/38:50 pm
GMP
-
DEN
2 stops37h 19m
China Eastern
Deal found 7/30$992
This United Airlines deal was found by Cheapflights users on 7/27. 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 10/205:08 pm
COS
-
ICN
2 stops20h 12m
United Airlines
Wed 11/256:30 pm
ICN
-
COS
2 stops32h 45m
United Airlines
Deal found 7/27$1,111
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 10/196:03 pm
COS
-
ICN
2 stops19h 17m
United Airlines
Sat 10/316:00 pm
ICN
-
COS
2 stops17h 49m
United Airlines
Deal found 7/28$1,161
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 9/1211:30 am
COS
-
ICN
2 stops25h 50m
United Airlines
Wed 9/304:50 pm
ICN
-
COS
2 stops22h 09m
United Airlines
Deal found 7/29$1,211

Find flight deals from Colorado to South Korea

Keep the following information in mind while searching for Colorado to South Korea flight deals. Data was last updated July 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$798
(lastminute.com)

One-way from

$372
(FlightHub)

Popular in

December

Cheapest in

November

Average price

$1,198
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 South Korea
Search Deals
One-way flight from Colorado to South Korea
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to South Korea 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 July 31, 2026.
Use the filters below to find and compare flights from Colorado to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Mon 11/9

9:27 am-9:20 pm

1 stop19h 53m

Incheon Intl

Fri 11/13

7:45 pm-9:58 am

2 stops30h 13m

$927

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Tue 10/20

11:57 am-4:20 am

2 stops25h 23m

Incheon Intl

Tue 11/24

12:45 pm-10:03 pm

2 stops25h 18m

$1,111

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Wed 10/21

6:03 pm-3:00 pm

2 stops29h 57m

Incheon Intl

Thu 11/26

6:30 pm-12:21 pm

2 stops33h 51m

$1,111

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Tue 10/20

5:08 pm-4:20 am

2 stops20h 12m

Incheon Intl

Wed 11/25

6:30 pm-11:15 am

2 stops32h 45m

$1,111

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 9/29

4:51 pm-2:05 pm

2 stops30h 14m

Incheon Intl

Wed 10/28

1:55 am-10:37 pm

2 stops35h 42m

$1,141

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Mon 10/19

6:03 pm-4:20 am

2 stops19h 17m

Incheon Intl

Sat 10/31

6:00 pm-8:49 pm

2 stops17h 49m

$1,161

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Tue 10/27

12:05 pm-4:40 am

2 stops25h 35m

Incheon Intl

Tue 11/24

6:00 pm-10:03 pm

2 stops20h 03m

$1,161

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 9/30

10:46 am-7:05 pm

2 stops41h 19m

Incheon Intl

Tue 11/3

1:45 pm-10:14 pm

2 stops24h 29m

$1,163

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Mon 11/2

8:20 pm-6:20 pm

1 stop30h 00m

Incheon Intl

Tue 1/26

12:05 am-5:25 pm

1 stop33h 20m

$1,230

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Wed 10/14

5:30 am-3:00 pm

2 stops18h 30m

Incheon Intl

Tue 10/27

6:00 pm-10:03 pm

2 stops19h 03m

$1,248

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 53 resultsSorted by cheapest first
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Best time to book a flight from Colorado to South Korea

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

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

Currently, February is the cheapest month in which you can book a flight from Colorado to South Korea (average of $1,038). Flying from Colorado to South Korea in December is currently the most expensive (average of $1,597). 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.

How far ahead should I book a flight from Colorado to South Korea?

The best time to book flights from Colorado to South Korea is 16 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

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

    There are many flights that can get you from Colorado to South Korea in 23h 05m. Fly via United Airlines, China Eastern, or Japan Airlines to get the fastest option. Colorado and South Korea are separated by a distance of 6168 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Colorado to South Korea one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $61. Users have also found prices from $98 and $98 on American Airlines and Southwest, respectively.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Colorado to South Korea (average of $1,038). Flying from Colorado to South Korea in December is currently the most expensive (average of $1,597). 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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Top 9 airlines flying from Colorado to South Korea

Discover the top 9 airlines that operate flights from Colorado to South Korea. 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 July 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$187Average$1,534FlexibilityNo cancel feeOn-time69%
DeltaCheapest$478Average$998FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$519Average$1,089FlexibilityNo cancel feeOn-time81%
AIR PREMIACheapest$608Average$615FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$816Average$1,506FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$906Average$1,163FlexibilityNo cancel feeOn-time67%
China EasternCheapest$914Average$1,754FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$1,035Average$1,335FlexibilityNo cancel feeOn-time76%
WestJetCheapest$1,157Average$1,522FlexibilityNo cancel feeOn-time60%

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