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$395+ Cheap flights from Colorado to Seoul (SEL)

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEL
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Colorado to Seoul

Cheapest flights from Colorado to Seoul
Explore the most affordable flight options available from Colorado to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/410:29 pm
DEN
-
ICN
2 stops46h 16m
Multiple Airlines
Wed 3/116:55 pm
ICN
-
DEN
1 stop20h 42m
Multiple Airlines
Deal found 2/2$795
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/308:00 am
DEN
-
ICN
2 stops46h 35m
Multiple Airlines
Wed 4/86:20 pm
ICN
-
DEN
1 stop21h 22m
Multiple Airlines
Deal found 2/2$857
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 5/410:29 pm
DEN
-
ICN
2 stops34h 56m
Multiple Airlines
Wed 5/136:20 pm
ICN
-
DEN
1 stop36h 17m
Multiple Airlines
Deal found 2/2$859
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/26:00 am
DEN
-
ICN
1 stop22h 30m
Multiple Airlines
Mon 3/96:55 pm
ICN
-
DEN
1 stop20h 42m
Multiple Airlines
Deal found 2/2$860
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/236:00 am
DEN
-
ICN
2 stops39h 55m
Multiple Airlines
Mon 3/26:55 pm
ICN
-
DEN
1 stop33h 10m
Multiple Airlines
Deal found 2/3$869
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/26:00 am
DEN
-
ICN
1 stop22h 30m
Multiple Airlines
Thu 3/129:20 pm
ICN
-
DEN
2 stops21h 36m
Multiple Airlines
Deal found 2/2$880
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Wed 2/1812:48 pm
DEN
-
ICN
2 stops37h 47m
Multiple Airlines
Wed 3/116:55 pm
ICN
-
DEN
1 stop20h 42m
Multiple Airlines
Deal found 1/31$883
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 4/39:25 am
DEN
-
ICN
2 stops45h 10m
Multiple Airlines
Wed 4/86:20 pm
ICN
-
DEN
1 stop21h 22m
Multiple Airlines
Deal found 2/2$886
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/110:29 pm
DEN
-
ICN
2 stops52h 56m
Multiple Airlines
Wed 3/116:55 pm
ICN
-
DEN
1 stop20h 42m
Multiple Airlines
Deal found 2/1$892
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 4/237:00 am
DEN
-
ICN
2 stops23h 35m
Multiple Airlines
Mon 5/46:20 pm
ICN
-
DEN
1 stop30h 22m
Multiple Airlines
Deal found 2/1$894
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/89:10 am
DEN
-
ICN
1 stop18h 25m
Multiple Airlines
Wed 3/116:55 pm
ICN
-
DEN
1 stop20h 42m
Multiple Airlines
Deal found 2/1$900
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/267:52 pm
DEN
-
ICN
1 stop30h 43m
Multiple Airlines
Sun 3/89:20 pm
ICN
-
DEN
2 stops45h 36m
Multiple Airlines
Deal found 2/1$902

Find flight deals from Colorado to Seoul

Keep the following information in mind while searching for Colorado to Seoul flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$795
(Kiwi.com)

One-way from

$395
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,030
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 Seoul (SEL)
Search Deals
One-way flight from Colorado to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Seoul 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 February 3, 2026.
Use the filters below to find and compare flights from Colorado to Seoul that are best for you.

Fly from

Colorado

Fly to

Seoul

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 4/3

9:25 am-9:35 pm

2 stops45h 10m

Incheon Intl

Wed 4/8

6:20 pm-12:42 am

1 stop21h 22m

$886

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Mon 3/2

6:00 am-8:30 pm

1 stop22h 30m

Incheon Intl

Thu 3/12

1:20 pm-12:30 am

1 stop26h 10m

$972

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Wed 3/18

6:55 pm-4:40 am

2 stops18h 45m

Incheon Intl

Wed 3/25

11:45 am-2:20 pm

2 stops17h 35m

$995

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 4/3

6:03 pm-6:35 pm

2 stops57h 32m

Incheon Intl

Thu 4/9

8:35 pm-6:28 pm

2 stops36h 53m

$1,104

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 3/6

6:45 pm-6:35 pm

2 stops31h 50m

Incheon Intl

Mon 3/16

8:35 pm-10:42 am

2 stops29h 07m

$1,118

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Wed 2/18

12:20 pm-5:40 am

2 stops25h 20m

Incheon Intl

Sun 2/22

6:00 pm-12:31 pm

2 stops34h 31m

$1,152

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 2/14

11:15 am-9:05 am

2 stops29h 50m

Incheon Intl

Mon 3/16

12:10 am-6:35 pm

1 stop33h 25m

$1,180

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 3/5

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Thu 3/12

12:10 am-11:30 pm

2 stops38h 20m

$1,186

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Mon 3/2

5:45 am-11:00 am

2 stops37h 15m

Seoul Gimpo Intl

Mon 3/9

8:50 pm-6:00 pm

2 stops36h 10m

$1,188

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Sun 3/1

5:45 am-7:50 pm

2 stops46h 05m

Seoul Gimpo Intl

Sun 3/8

8:50 pm-6:00 pm

2 stops36h 10m

$1,188

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 48 results
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Best time to book a flight from Colorado to Seoul

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

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

Currently, May is the cheapest month in which you can book a flight from Colorado to Seoul (average of $189). Flying from Colorado to Seoul in June is currently the most expensive (average of $1,451). 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.

Related info for your journey

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

    Departing from Colorado to Seoul will take you 18h 45m. The distance from Colorado to Seoul is about 6242 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Colorado to Seoul are Air Canada ($528), Asiana Airlines ($553), and Delta ($582).

  • What are the most popular routes from Colorado to Seoul?

    The most popular route from Colorado to Seoul is Denver Intl - Incheon Intl. You may also consider Denver Intl - Seoul Gimpo Intl or Colorado Springs - Incheon Intl.

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

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

  • How can I find direct flights from Colorado to Seoul?

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

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

    Yes. Cheapflights offers flight deals from Colorado to Seoul 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 Seoul?

    Currently, May is the cheapest month in which you can book a flight from Colorado to Seoul (average of $189). Flying from Colorado to Seoul in June is currently the most expensive (average of $1,451). 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

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Alternative routes for Colorado to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Incheon Intl flights
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Dulles Intl to Gimpo Intl flights
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Seattle to Gimpo Intl flights
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George Bush Intcntl to Incheon Intl flights
Orlando to Incheon Intl flights
Dallas/Fort Worth to Gimpo Intl flights
O'Hare Intl to Gimpo Intl flights
Miami to Incheon Intl flights
Boston to Gimpo Intl flights
Love Field to Incheon Intl flights
Minneapolis to Incheon Intl flights
Philadelphia to Incheon Intl flights
Denver to Incheon Intl flights
Newark to Gimpo Intl flights
Atlanta to Gimpo Intl flights
Miami to Gimpo Intl flights
San Jose to Incheon Intl flights
Baltimore to Gimpo Intl flights
Portland to Incheon Intl flights
Reagan-National to Gimpo Intl flights
Santa Ana to Incheon Intl flights
Salt Lake City to Incheon Intl flights
George Bush Intcntl to Gimpo Intl flights
Philadelphia to Gimpo Intl flights
Austin to Incheon Intl flights
Orlando to Gimpo Intl flights
Burbank to Incheon Intl flights
Raleigh to Incheon Intl flights
LaGuardia to Gimpo Intl flights

Top 10 airlines flying from Colorado to Seoul

Discover the top 10 airlines that operate flights from Colorado to Seoul. 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$146FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$187Average$1,029FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$1,042FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$585Average$615FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$586Average$1,588FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$740Average$1,260FlexibilityNo cancel feeOn-time76%
WestJetCheapest$748Average$1,176FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$816Average$1,182FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$863Average$999FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$975Average$1,231FlexibilityNo cancel feeOn-time67%

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