South Korea

$376+ 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
Jul 16 — Jul 231
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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 June 16, 2026.

This Trip.com deal was found by Cheapflights users on 6/12. 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 9/2210:29 pm
DEN
-
ICN
1 stop26h 21m
Multiple Airlines
Tue 10/131:00 pm
ICN
-
DEN
1 stop16h 37m
Multiple Airlines
Deal found 6/12$869
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Mon 8/3112:15 pm
DEN
-
ICN
1 stop15h 30m
Multiple Airlines
Wed 9/303:05 pm
ICN
-
DEN
2 stops22h 54m
Multiple Airlines
Deal found 6/11$902
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/2912:15 pm
DEN
-
ICN
1 stop15h 30m
Multiple Airlines
Tue 9/157:10 am
ICN
-
DEN
2 stops29h 20m
Multiple Airlines
Deal found 6/12$941
This Justfly.com deal was found by Cheapflights users on 6/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:15 pm
DEN
-
ICN
1 stop15h 30m
WestJet
Thu 10/18:45 pm
ICN
-
DEN
1 stop29h 35m
WestJet
Deal found 6/16$957
This Trip.com deal was found by Cheapflights users on 6/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:47 am
DEN
-
ICN
1 stop20h 53m
Multiple Airlines
Wed 10/217:15 pm
ICN
-
DEN
1 stop18h 44m
Multiple Airlines
Deal found 6/14$971
This Ovago deal was found by Cheapflights users on 6/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:30 am
DEN
-
ICN
2 stops37h 25m
China Eastern
Wed 11/118:55 am
ICN
-
DEN
2 stops25h 15m
China Eastern
Deal found 6/14$977
This BusinessClass deal was found by Cheapflights users on 6/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:30 am
DEN
-
ICN
2 stops38h 25m
China Eastern
Thu 12/38:55 am
ICN
-
DEN
2 stops25h 15m
China Eastern
Deal found 6/11$979
This BusinessClass deal was found by Cheapflights users on 6/15. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:30 am
DEN
-
ICN
2 stops37h 25m
China Eastern
Thu 11/128:55 am
ICN
-
DEN
2 stops25h 15m
China Eastern
Deal found 6/15$981
This BusinessClass deal was found by Cheapflights users on 6/15. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:30 am
DEN
-
ICN
2 stops38h 25m
China Eastern
Sat 11/78:55 am
ICN
-
DEN
2 stops25h 15m
China Eastern
Deal found 6/15$986
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:40 am
COS
-
ICN
1 stop19h 05m
American Airlines
Mon 9/145:50 pm
ICN
-
COS
1 stop20h 05m
American Airlines
Deal found 6/13$1,116
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:40 am
COS
-
ICN
1 stop19h 05m
American Airlines
Sat 9/125:50 pm
ICN
-
COS
1 stop35h 53m
American Airlines
Deal found 6/13$1,122
This Justfly.com deal was found by Cheapflights users on 6/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:08 pm
DEN
-
PUS
2 stops31h 47m
STARLUX Airlines
Sat 9/126:55 pm
PUS
-
DEN
2 stops43h 24m
STARLUX Airlines
Deal found 6/14$1,129

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 June 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$871
(Kiwi.com)

One-way from

$376
(Justfly.com)

Popular in

December

Cheapest in

September

Average price

$1,383
Provider with most accurate pricing for Denver Intl-Seoul (SEL) flight deals.
Provider most trusted by Cheapflights users for Denver Intl-Seoul (SEL) flights.
From Colorado to South Korea
One-way flight from Colorado to South Korea
Highest demand for flights based on searches. 7% potential increase in price ($101 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($56 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 16, 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

Tue 9/22

7:15 am-3:20 pm

2 stops41h 05m

Incheon Intl

Mon 10/12

6:25 pm-6:10 pm

2 stops38h 45m

$1,063

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/19

7:15 am-3:10 pm

2 stops40h 55m

Incheon Intl

Mon 10/12

4:20 pm-6:10 pm

2 stops40h 50m

$1,063

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/19

7:15 am-3:10 pm

2 stops40h 55m

Incheon Intl

Tue 10/13

6:25 pm-6:10 pm

2 stops38h 45m

$1,063

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/19

7:15 am-11:55 am

2 stops37h 40m

Incheon Intl

Fri 10/16

8:55 am-6:10 pm

2 stops24h 15m

$1,063

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Thu 9/3

5:40 am-3:45 pm

1 stop19h 05m

Incheon Intl

Mon 9/14

5:50 pm-10:55 pm

1 stop20h 05m

$1,116

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Tue 9/8

7:08 pm-5:55 pm

2 stops31h 47m

Busan Gimhae

Sat 9/12

6:55 pm-11:19 pm

2 stops43h 24m

$1,129

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 9/22

11:06 am-7:15 pm

2 stops41h 09m

Incheon Intl

Thu 10/1

7:20 am-5:35 pm

2 stops49h 15m

$1,212

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 10/14

6:19 pm-7:15 pm

2 stops33h 56m

Incheon Intl

Fri 10/23

7:20 am-11:28 am

2 stops43h 08m

$1,236

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 8/8

11:40 am-6:00 am

2 stops51h 20m

Incheon Intl

Sun 8/16

7:20 am-11:09 am

2 stops42h 49m

$1,236

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Tue 10/13

6:30 am-11:35 am

2 stops38h 05m

Busan Gimhae

Tue 10/27

12:35 pm-6:10 pm

2 stops44h 35m

$1,238

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

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 $59). Flying from Colorado to South Korea in November is currently the most expensive (average of $866). 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 17 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 19h 05m. Fly via China Eastern, American Airlines, or STARLUX Airlines to get the fastest option. Colorado and South Korea are separated by a distance of 6242 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 $49. 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 $59). Flying from Colorado to South Korea in November is currently the most expensive (average of $866). 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

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 South Korea

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Colorado to South Korea

Discover the top 10 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 June 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$187Average$1,465FlexibilityNo cancel feeOn-time69%
DeltaCheapest$483Average$902FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$519Average$1,089FlexibilityNo cancel feeOn-time81%
AIR PREMIACheapest$608Average$615FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$762Average$1,515FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$816Average$1,506FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$912Average$1,148FlexibilityNo cancel feeOn-time67%
China EasternCheapest$914Average$1,754FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$1,035Average$1,337FlexibilityNo cancel feeOn-time76%
WestJetCheapest$1,364Average$1,546FlexibilityNo cancel feeOn-time60%

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