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$373+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$735
(Kiwi.com)

One-way from

$373
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,125
Provider with most accurate pricing for Denver Intl-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Seoul (SEL) flights.
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From Colorado to South Korea
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One-way flight from Colorado to South Korea
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Highest demand for flights based on searches. 16% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/2710:29 pmDEN - ICN
1 stop38h 41mMultiple Airlines
Fri 12/56:55 pmICN - DEN
2 stops30h 00mMultiple Airlines
Deal found 10/28$735
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:51 amDEN - ICN
1 stop29h 19mMultiple Airlines
Fri 12/56:55 pmICN - DEN
2 stops30h 00mMultiple Airlines
Deal found 10/29$759
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/2710:29 pmDEN - ICN
1 stop38h 41mMultiple Airlines
Thu 12/49:20 pmICN - DEN
2 stops22h 38mMultiple Airlines
Deal found 10/28$783
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:45 amDEN - ICN
2 stops32h 35mMultiple Airlines
Tue 11/181:20 pmICN - DEN
1 stop21h 05mMultiple Airlines
Deal found 10/29$822
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Mon 11/1010:29 pmDEN - ICN
2 stops28h 56mMultiple Airlines
Mon 11/176:55 pmICN - DEN
1 stop32h 50mMultiple Airlines
Deal found 10/28$836
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/117:58 pmDEN - ICN
2 stops30h 37mMultiple Airlines
Fri 11/146:55 pmICN - DEN
1 stop20h 55mMultiple Airlines
Deal found 10/28$850
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:55 pmDEN - ICN
2 stops45h 25mMultiple Airlines
Mon 11/178:35 pmICN - DEN
1 stop36h 55mMultiple Airlines
Deal found 10/29$865
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 12/410:29 pmDEN - ICN
1 stop30h 01mMultiple Airlines
Wed 12/176:55 pmICN - DEN
2 stops49h 03mMultiple Airlines
Deal found 10/28$871
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:55 pmDEN - ICN
2 stops45h 25mMultiple Airlines
Tue 11/181:20 pmICN - DEN
1 stop21h 05mMultiple Airlines
Deal found 10/29$876
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Mon 11/176:25 amDEN - PUS
2 stops37h 10mChina Eastern
Mon 12/15:50 pmPUS - DEN
2 stops40h 42mChina Eastern
Deal found 10/30$914
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:25 amDEN - GMP
2 stops36h 35mChina Eastern
Thu 12/48:50 pmGMP - DEN
2 stops37h 42mChina Eastern
Deal found 10/28$918
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:15 amDEN - GMP
2 stops36h 45mChina Eastern
Tue 11/188:50 pmGMP - DEN
2 stops37h 43mChina Eastern
Deal found 10/29$1,157

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 October 30, 2025.
Use the filters below to find and compare flights from Colorado to South Korea that are best for you.

Fly from

Colorado

Fly to

South Korea

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 11/28

7:51 am-5:10 am

1 stop29h 19m

Incheon Intl

Fri 12/5

6:55 pm-10:12 am

1 stop31h 17m

$773

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/16

10:51 pm-11:35 am

2 stops44h 44m

Incheon Intl

Sun 1/25

6:55 pm-9:57 am

1 stop31h 02m

$804

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/16

1:07 pm-8:30 pm

1 stop39h 23m

Incheon Intl

Sat 1/24

6:55 pm-9:57 am

1 stop31h 02m

$830

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 11/8

10:55 pm-12:20 pm

2 stops45h 25m

Incheon Intl

Tue 11/18

1:20 pm-6:25 pm

1 stop21h 05m

$876

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 1/15

10:30 pm-8:30 pm

1 stop30h 00m

Incheon Intl

Mon 1/26

8:35 pm-11:36 pm

1 stop19h 01m

$887

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 11/26

6:05 am-8:30 pm

1 stop22h 25m

Incheon Intl

Wed 12/3

6:55 pm-10:12 am

1 stop31h 17m

$897

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 11/29

10:08 am-9:35 pm

2 stops43h 27m

Incheon Intl

Sun 12/7

6:55 pm-10:12 am

1 stop31h 17m

$904

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Mon 11/17

6:25 am-11:35 am

2 stops37h 10m

Busan Gimhae

Mon 12/1

5:50 pm-6:32 pm

2 stops40h 42m

$914

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 12/4

6:25 am-3:20 pm

2 stops40h 55m

Incheon Intl

Wed 12/17

4:20 pm-6:32 pm

2 stops42h 12m

$918

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 12/3

6:25 am-11:55 am

2 stops37h 30m

Incheon Intl

Thu 12/18

8:55 am-6:32 pm

2 stops25h 37m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 50 results
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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 $103). Flying from Colorado to South Korea in June is currently the most expensive (average of $1,490). 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 KR?

Find hourly flight availability from Colorado to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Colorado to South Korea in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Colorado to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Colorado to South Korea. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Colorado to South Korea flight should consider departing on Monday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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. Fly via China Eastern, United Airlines, or American 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.

  • 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 $103). Flying from Colorado to South Korea in June is currently the most expensive (average of $1,490). 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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$129FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$189Average$1,090FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$585Average$615FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$587Average$1,093FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$748Average$1,213FlexibilityNo cancel feeOn-time60%
Turkish AirlinesCheapest$755Average$895FlexibilityNo cancel feeOn-time77%
Asiana AirlinesCheapest$757Average$1,233FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$843Average$1,475FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$875Average$1,219FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$1,102FlexibilityNo cancel feeOn-time71%

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