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$373+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEL
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Colorado to Seoul

Keep the following information in mind while searching for Colorado to Seoul 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 Seoul (SEL)
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One-way flight from Colorado to Seoul (SEL)
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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 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 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 10/28. 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
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:15 amDEN - GMP
2 stops45h 35mChina Eastern
Sun 11/168:50 pmGMP - DEN
2 stops37h 43mChina Eastern
Deal found 10/29$1,194

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 October 30, 2025.
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 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

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

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Thu 11/27

6:25 am-11:00 am

2 stops36h 35m

Seoul Gimpo Intl

Thu 12/4

8:50 pm-6:32 pm

2 stops37h 42m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 46 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, February is the cheapest month in which you can book a flight from Colorado to Seoul (average of $103). Flying from Colorado to Seoul 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 SEL?

Find hourly flight availability from Colorado to Seoul. 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.

One of the essential ways to save on airfare from Colorado to Seoul is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

How much does it cost to fly round-trip from Colorado to Seoul?

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 19h. 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 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, February is the cheapest month in which you can book a flight from Colorado to Seoul (average of $103). Flying from Colorado to Seoul 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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Alternative routes for Colorado to Seoul

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 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 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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