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$417+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
abr. 5 — abr. 121
sáb. 4/5
sáb. 4/12
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 marzo 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$774
(Trip.com)

One-way from

$417
(Trip.com)

Popular in

July

Cheapest in

February

Average price

$1,201
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. 25% potential increase in price ($475 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($67 potential savings vs. average RT price).
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Average for round-trip flights in March 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 marzo 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/2610:38 pmDEN - ICN
1 stop30h 52mMultiple Airlines
dom. 5/116:20 pmICN - DEN
1 stop21h 22mMultiple Airlines
Deal found 3/31$775
This CrystalTravel deal was found by Cheapflights users on 3/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/257:50 pmDEN - ICN
1 stop30h 50mTurkish Airlines
lun. 11/1712:10 amICN - DEN
1 stop33h 30mTurkish Airlines
Deal found 3/30$894
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/157:05 amDEN - ICN
2 stops41h 15mChina Eastern
jue. 5/298:55 amICN - DEN
2 stops24h 24mChina Eastern
Deal found 3/31$994
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/57:40 pmDEN - ICN
1 stop32h 05mWestJet
mar. 6/248:45 pmICN - DEN
1 stop29h 42mWestJet
Deal found 3/31$1,017
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/187:19 pmDEN - ICN
2 stops29h 46mAir Canada
lun. 10/65:45 pmICN - DEN
1 stop19h 57mAir Canada
Deal found 3/30$1,229
This Gotogate deal was found by Cheapflights users on 3/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/261:25 pmDEN - GMP
2 stops41h 55mANA
jue. 5/87:55 pmGMP - DEN
2 stops42h 01mANA
Deal found 3/31$1,354
This United deal was found by Cheapflights users on 3/30. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/62:00 pmCOS - ICN
2 stops23h 20mUnited Airlines
mié. 5/214:50 pmICN - COS
2 stops19h 46mUnited Airlines
Deal found 3/30$1,433
This FlightHub deal was found by Cheapflights users on 3/30. 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.
mié. 10/1511:51 amDEN - PUS
2 stops40h 59mPhilippine Airlines
sáb. 11/18:45 pmPUS - DEN
2 stops35h 03mPhilippine Airlines
Deal found 3/30$1,500
This Expedia deal was found by Cheapflights users on 3/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/165:20 pmDEN - GMP
2 stops28h 45mMultiple Airlines
mar. 10/218:20 amGMP - DEN
2 stops26h 03mMultiple Airlines
Deal found 3/30$1,584
This Expedia deal was found by Cheapflights users on 3/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/277:46 amDEN - PUS
2 stops36h 59mMultiple Airlines
dom. 5/44:30 pmPUS - DEN
2 stops40h 49mMultiple Airlines
Deal found 3/30$1,631
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/66:39 pmCOS - ICN
2 stops30h 26mMultiple Airlines
mar. 7/85:45 pmICN - COS
2 stops19h 10mMultiple Airlines
Deal found 3/30$1,700
This FlightHub deal was found by Cheapflights users on 3/30. 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.
jue. 6/196:30 amDEN - PUS
2 stops43h 20mChina Eastern
vie. 7/45:50 pmPUS - DEN
2 stops39h 30mChina Eastern
Deal found 3/30$1,906

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 marzo 31, 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

sáb. 4/26

10:38 pm-8:30 pm

1 stop30h 52m

Incheon Intl

dom. 5/11

6:20 pm-12:42 am

1 stop21h 22m

$775

DenverIncheon

DEN - ICN

DENICN

Denver Intl

jue. 9/25

7:50 pm-5:40 pm

1 stop30h 50m

Incheon Intl

lun. 11/17

12:10 am-5:40 pm

1 stop33h 30m

$894

DenverIncheon

DEN - ICN

DENICN

Denver Intl

mar. 4/15

7:05 am-3:20 pm

2 stops41h 15m

Incheon Intl

jue. 5/29

8:55 am-6:19 pm

2 stops24h 24m

$994

DenverIncheon

DEN - ICN

DENICN

Denver Intl

jue. 6/5

7:40 pm-6:45 pm

1 stop32h 05m

Incheon Intl

mar. 6/24

8:45 pm-11:27 am

1 stop29h 42m

$1,017

DenverIncheon

DEN - ICN

DENICN

Denver Intl

lun. 8/18

7:19 pm-4:05 pm

2 stops29h 46m

Incheon Intl

lun. 10/6

5:45 pm-10:42 pm

1 stop19h 57m

$1,229

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

sáb. 4/26

1:25 pm-10:20 pm

2 stops41h 55m

Seoul Gimpo Intl

jue. 5/8

7:55 pm-10:56 pm

2 stops42h 01m

$1,354

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

mar. 5/6

2:00 pm-4:20 am

2 stops23h 20m

Incheon Intl

mié. 5/21

4:50 pm-9:36 pm

2 stops19h 46m

$1,433

DenverBusan

DEN - PUS

DENPUS

Denver Intl

dom. 4/27

7:46 am-11:45 am

2 stops36h 59m

Busan Gimhae

dom. 5/4

4:30 pm-6:19 pm

2 stops40h 49m

$1,631

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

dom. 4/20

9:52 am-1:05 pm

2 stops36h 13m

Seoul Gimpo Intl

dom. 4/27

7:20 pm-12:46 pm

2 stops32h 26m

$1,640

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

mar. 5/6

6:39 pm-4:05 pm

2 stops30h 26m

Incheon Intl

mar. 7/8

5:45 pm-9:55 pm

2 stops19h 10m

$1,700

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 40 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 $1,002). Flying from Colorado to South Korea in June is currently the most expensive (average of $1,661). 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 marzo 31, 2025.

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

Rainfall in South Korea by month

Plan your trip to South Korea by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Korea ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit South Korea when rainfall is around 0.8 in.

Temperature in South Korea by month

Plan your trip to South Korea by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Korea, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated marzo 31, 2025.
Read reviews from past customers who have flown Korean Air, Japan Airlines and ANA from Colorado to South Korea. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,051 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,051 reviews
Korean Air
8.4
Very good
1,051 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,440 reviews
Korean Air
8.4
Very good
1,051 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
831 reviews
Korean Air
8.4
Very good
1,051 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.2
Very good
723 reviews
Korean Air
8.4
Very good
1,051 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,286 reviews
Korean Air
8.4
Very good
1,051 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $559. Users have also found prices from $692 and $705 on Air China and Air Canada, 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 $1,002). Flying from Colorado to South Korea in June is currently the most expensive (average of $1,661). 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 Colorado to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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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 marzo 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$129FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$660Average$1,458FlexibilityNo cancel feeOn-time69%
WestJetCheapest$748Average$1,171FlexibilityNo cancel feeOn-time60%
Turkish AirlinesCheapest$755Average$934FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$856Average$1,283FlexibilityNo cancel feeOn-time67%
DeltaCheapest$876Average$1,350FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$877Average$1,372FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$978Average$1,688FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,103Average$1,241FlexibilityNo cancel feeOn-time76%
Japan AirlinesCheapest$1,315Average$1,750FlexibilityNo cancel feeOn-time79%
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