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$350+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$702
(Delta)

One-way from

$350
(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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Provider most trusted by Cheapflights users for Seoul (SEL)-Denver Intl flights.
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From South Korea to Colorado
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One-way flight from South Korea 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 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 April 24, 2025.

This Delta deal was found by Cheapflights users on 4/22. 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.
Thu 10/96:40 pmICN - DEN
1 stop33h 12mDelta
Thu 11/66:15 amDEN - ICN
1 stop18h 25mDelta
Deal found 4/22$702
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 9/114:50 pmICN - COS
2 stops18h 49mUnited Airlines
Thu 9/1812:50 pmCOS - ICN
2 stops24h 30mUnited Airlines
Deal found 4/23$726
This United Airlines deal was found by Cheapflights users on 4/23. 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 10/74:50 pmICN - DEN
1 stop14h 46mUnited Airlines
Tue 10/141:25 pmDEN - ICN
2 stops23h 55mUnited Airlines
Deal found 4/23$726
This Gotogate deal was found by Cheapflights users on 4/22. 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.
Thu 5/225:45 pmICN - DEN
1 stop13h 53mAir Canada
Mon 6/911:35 amDEN - ICN
1 stop37h 30mAir Canada
Deal found 4/22$764
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/126:20 pmICN - DEN
1 stop30h 54mMultiple Airlines
Fri 5/1610:18 pmDEN - ICN
1 stop31h 12mMultiple Airlines
Deal found 4/24$770
This Korean Air deal was found by Cheapflights users on 4/23. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/268:25 pmICN - DEN
1 stop18h 29mKorean Air
Fri 5/307:45 amDEN - ICN
1 stop17h 45mKorean Air
Deal found 4/23$822
This Gotogate deal was found by Cheapflights users on 4/23. 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.
Thu 7/178:45 pmICN - DEN
1 stop29h 42mWestJet
Sun 7/277:40 pmDEN - ICN
1 stop32h 05mWestJet
Deal found 4/23$1,023
This Delta deal was found by Cheapflights users on 4/23. 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.
Thu 9/117:20 pmICN - COS
2 stops36h 53mDelta
Thu 9/188:00 amCOS - ICN
1 stop16h 20mDelta
Deal found 4/23$1,068
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 6/209:25 pmICN - DEN
2 stops41h 34mAlaska Airlines
Fri 8/18:32 pmDEN - ICN
2 stops31h 28mAlaska Airlines
Deal found 4/23$1,136
This YBTour deal was found by Cheapflights users on 4/23. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:40 amGMP - DEN
2 stops49h 28mANA
Fri 7/111:25 pmDEN - GMP
2 stops38h 10mANA
Deal found 4/23$1,366
This Jetabroad deal was found by Cheapflights users on 4/23. 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.
Thu 5/157:55 amGMP - DEN
2 stops19h 18mJapan Airlines
Wed 5/218:00 amDEN - GMP
2 stops22h 50mJapan Airlines
Deal found 4/23$1,398
This Japan Airlines deal was found by Cheapflights users on 4/22. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/612:05 pmGMP - DEN
2 stops19h 56mMultiple Airlines
Fri 6/136:00 amDEN - GMP
2 stops24h 50mMultiple Airlines
Deal found 4/22$1,554

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 April 24, 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

Thu 10/9

6:40 pm-12:52 pm

1 stop33h 12m

Denver Intl

Thu 11/6

6:15 am-4:40 pm

1 stop18h 25m

$702

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Thu 9/11

4:50 pm-8:39 pm

2 stops18h 49m

Colorado Springs

Thu 9/18

12:50 pm-4:20 am

2 stops24h 30m

$726

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 10/7

4:50 pm-4:36 pm

1 stop14h 46m

Denver Intl

Tue 10/14

1:25 pm-4:20 am

2 stops23h 55m

$726

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 5/22

5:45 pm-4:38 pm

1 stop13h 53m

Denver Intl

Mon 6/9

11:35 am-4:05 pm

1 stop37h 30m

$764

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 5/12

6:20 pm-10:14 am

1 stop30h 54m

Denver Intl

Fri 5/16

10:18 pm-8:30 pm

1 stop31h 12m

$770

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 5/26

8:25 pm-11:54 pm

1 stop18h 29m

Denver Intl

Fri 5/30

7:45 am-4:30 pm

1 stop17h 45m

$822

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 7/17

8:45 pm-11:27 am

1 stop29h 42m

Denver Intl

Sun 7/27

7:40 pm-6:45 pm

1 stop32h 05m

$1,023

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Thu 9/11

7:20 pm-5:13 pm

2 stops36h 53m

Colorado Springs

Thu 9/18

8:00 am-3:20 pm

1 stop16h 20m

$1,068

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 6/20

9:25 pm-11:59 pm

2 stops41h 34m

Denver Intl

Fri 8/1

8:32 pm-7:00 pm

2 stops31h 28m

$1,136

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Mon 7/7

7:40 am-6:08 pm

2 stops49h 28m

Denver Intl

Fri 7/11

1:25 pm-6:35 pm

2 stops38h 10m

$1,366

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 36 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 April 24, 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.

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 April 24, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from South Korea to Colorado to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,180 reviews

Entertainment

8.0

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,180 reviews
EVA Air
8.4
Very good
1,180 reviews

Entertainment

8.0

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,062 reviews
EVA Air
8.4
Very good
1,180 reviews

Entertainment

8.0

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,452 reviews
EVA Air
8.4
Very good
1,180 reviews

Entertainment

8.0

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very good
853 reviews
EVA Air
8.4
Very good
1,180 reviews

Entertainment

8.0

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Singapore Airlines
8.1
Very good
1,290 reviews
EVA Air
8.4
Very good
1,180 reviews

Entertainment

8.0

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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.

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

    The cheapest airlines for a one-way flight from South Korea to Colorado are WestJet ($469), American Airlines ($531), and Delta ($569).

  • 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$685Average$1,352FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$696Average$897FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$735Average$963FlexibilityNo cancel feeOn-time67%
DeltaCheapest$877Average$1,022FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$953Average$1,122FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,014Average$1,295FlexibilityNo cancel feeOn-time76%

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