How long is the flight from Colorado to Seoul?

Departing from Colorado to Seoul will take you 22h. 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.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

If weather is an important factor for your trip to Seoul, 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 35.6 F).

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.

What are the most popular airlines that fly from Colorado to Seoul?

Consider American Airlines, Air Canada or Delta when booking your flight. These represent the most popular airlines when flying from Colorado to Seoul.

How far in advance should I book a flight from Colorado to Seoul?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 35 days in advance, which can save you up to 22% on flights from Colorado to Seoul compared to booking the week you need them. Waiting 35 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $826. For sooner than that we have options available in the next 3 days from $1,186.

What is the cheapest month to fly from Colorado to Seoul?

Flights from Colorado to Seoul lean towards being more expensive in January. Prices are generally better when you fly from Colorado to Seoul in February, with the cheapest ticket starting at $856.

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.

$320+ Flights from Colorado to Seoul

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

Airfare is below average for this route at the moment. Colorado to Seoul flights typically cost between $864 and $1,203 in October. The cheapest round-trip price found within the last 3 days was $843 on Multiple Airlines (Oct 30-Nov 6).

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Cheap flight deals from Colorado to Seoul

Round-trip from	$843 (Kiwi.com)
One-way from	$320 (Kiwi.com)
Popular in	January
Cheapest in	February
Average price	$1,024

From Colorado to Seoul (SEL)

Search Deals

One-way flight from Colorado to Seoul (SEL)

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($70 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).

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Average for round-trip flights in September 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 septiembre 15, 2025.

jue. 10/3010:55 pmDEN - ICN

1 stop26h 15mMultiple Airlines

jue. 11/68:35 pmICN - DEN

2 stops29h 43mMultiple Airlines

Deal found 9/15

$843

lun. 11/36:30 amDEN - ICN

1 stop30h 50mMultiple Airlines

dom. 11/99:25 pmICN - DEN

2 stops22h 34mMultiple Airlines

Deal found 9/13

$849

mar. 11/112:37 pmDEN - ICN

2 stops33h 33mMultiple Airlines

mié. 12/310:00 pmICN - DEN

1 stop28h 03mMultiple Airlines

Deal found 9/14

$854

dom. 11/168:00 amDEN - ICN

1 stop29h 20mMultiple Airlines

dom. 11/238:35 pmICN - DEN

2 stops38h 41mMultiple Airlines

Deal found 9/15

$871

dom. 10/128:22 pmDEN - ICN

2 stops41h 28mMultiple Airlines

dom. 10/196:20 pmICN - DEN

1 stop20h 42mMultiple Airlines

Deal found 9/13

$875

mar. 10/2810:55 pmDEN - ICN

1 stop26h 15mMultiple Airlines

jue. 11/201:20 pmICN - DEN

2 stops26h 23mMultiple Airlines

Deal found 9/14

$876

lun. 11/1012:59 amDEN - ICN

2 stops36h 41mMultiple Airlines

mar. 11/189:00 pmICN - DEN

1 stop35h 57mMultiple Airlines

Deal found 9/13

$877

mié. 10/1510:45 amDEN - ICN

1 stop27h 05mMultiple Airlines

mié. 10/229:25 pmICN - DEN

2 stops27h 53mMultiple Airlines

Deal found 9/15

$878

lun. 11/36:30 amDEN - ICN

1 stop30h 50mMultiple Airlines

mar. 11/119:00 pmICN - DEN

1 stop35h 57mMultiple Airlines

Deal found 9/14

$883

lun. 11/246:14 amDEN - ICN

2 stops31h 06mMultiple Airlines

vie. 12/128:35 pmICN - DEN

1 stop18h 21mMultiple Airlines

Deal found 9/14

$885

mié. 12/36:25 amDEN - GMP

2 stops36h 35mChina Eastern

jue. 12/118:50 pmGMP - DEN

2 stops37h 41mChina Eastern

Deal found 9/13

$918

dom. 11/26:20 pmCOS - ICN

2 stops19h 20mUnited Airlines

vie. 11/712:45 pmICN - COS

2 stops27h 14mUnited Airlines

Deal found 9/12

$1,088

Best flights from Colorado to Seoul
Discover carefully curated flight deals from Colorado to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 15, 2025.

jue. 11/277:20 pmDEN - ICN

1 stop31h 00mTurkish Airlines

lun. 12/1510:45 amICN - DEN

1 stop46h 50mTurkish Airlines

Deal found 9/14

$1,022

mié. 10/16:30 amDEN - ICN

2 stops41h 50mChina Eastern

mié. 10/158:55 amICN - DEN

2 stops24h 29mChina Eastern

Deal found 9/15

$1,071

lun. 2/163:40 pmCOS - ICN

2 stops22h 00mUnited Airlines

vie. 2/2012:45 pmICN - COS

2 stops23h 17mUnited Airlines

Deal found 9/12

$1,088

mié. 10/17:55 pmDEN - ICN

1 stop17h 25mMultiple Airlines

mié. 10/156:00 pmICN - DEN

1 stop40h 38mMultiple Airlines

Deal found 9/15

$1,146

lun. 9/295:44 amDEN - ICN

1 stop18h 46mAmerican Airlines

mar. 10/75:45 pmICN - DEN

1 stop19h 20mAmerican Airlines

Deal found 9/14

$1,158

lun. 10/207:02 pmDEN - ICN

3 stops32h 58mAlaska Airlines

lun. 10/278:35 pmICN - DEN

2 stops29h 00mAlaska Airlines

Deal found 9/13

$1,184

dom. 2/87:53 pmDEN - GMP

2 stops34h 12mJapan Airlines

vie. 3/67:40 pmGMP - DEN

2 stops39h 32mJapan Airlines

Deal found 9/14

$1,388

mar. 11/1112:45 pmCOS - ICN

2 stops36h 30mQatar Airways

mié. 12/312:20 amICN - COS

2 stops39h 28mQatar Airways

Deal found 9/14

$1,524

sáb. 2/147:20 pmDEN - ICN

1 stop31h 00mTurkish Airlines

mié. 3/1112:10 amICN - DEN

1 stop33h 25mTurkish Airlines

Deal found 9/14

$1,022

dom. 11/26:20 pmCOS - ICN

2 stops19h 20mUnited Airlines

vie. 11/712:45 pmICN - COS

2 stops27h 14mUnited Airlines

Deal found 9/12

$1,088

lun. 2/168:00 amCOS - ICN

1 stop16h 20mDelta

vie. 2/208:05 pmICN - COS

2 stops18h 25mDelta

Deal found 9/12

$2,296

sáb. 1/311:30 pmDEN - ICN

2 stops27h 35mMultiple Airlines

vie. 2/2012:10 amICN - DEN

1 stop33h 25mMultiple Airlines

Deal found 9/14

$1,178

Last-minute flights from Colorado to Seoul
Discover last-minute flight deals from Colorado to Seoul. Data last updated septiembre 15, 2025 and is based on user searches.

jue. 9/1810:55 pmDEN - ICN

1 stop25h 50mMultiple Airlines

sáb. 9/208:35 pmICN - DEN

2 stops28h 09mMultiple Airlines

Deal found 9/14

$915

mar. 9/2310:55 pmDEN - ICN

1 stop25h 50mMultiple Airlines

mar. 10/149:05 pmICN - DEN

2 stops21h 54mMultiple Airlines

Deal found 9/14

$893

mié. 10/110:55 pmDEN - ICN

2 stops38h 35mMultiple Airlines

mié. 10/156:20 pmICN - DEN

1 stop30h 58mMultiple Airlines

Deal found 9/14

$939

vie. 10/38:40 amDEN - GMP

2 stops22h 45mMultiple Airlines

vie. 10/102:00 pmGMP - DEN

2 stops35h 04mMultiple Airlines

Deal found 9/13

$1,421

dom. 10/128:22 pmDEN - ICN

2 stops41h 28mMultiple Airlines

dom. 10/196:20 pmICN - DEN

1 stop20h 42mMultiple Airlines

Deal found 9/13

$875

mié. 10/1510:45 amDEN - ICN

1 stop27h 05mMultiple Airlines

mié. 10/229:25 pmICN - DEN

2 stops27h 53mMultiple Airlines

Deal found 9/15

$878

dom. 10/266:15 amDEN - ICN

2 stops38h 40mChina Eastern

mar. 11/114:10 pmICN - DEN

2 stops42h 23mChina Eastern

Deal found 9/14

$918

mar. 10/2810:55 pmDEN - ICN

1 stop26h 15mMultiple Airlines

jue. 11/201:20 pmICN - DEN

2 stops26h 23mMultiple Airlines

Deal found 9/14

$876

mar. 10/288:20 pmDEN - ICN

1 stop31h 00mTurkish Airlines

mié. 11/1912:10 amICN - DEN

1 stop33h 25mTurkish Airlines

Deal found 9/14

$912

jue. 10/3010:55 pmDEN - ICN

1 stop26h 15mMultiple Airlines

jue. 11/68:35 pmICN - DEN

2 stops29h 43mMultiple Airlines

Deal found 9/15

$843

jue. 10/305:40 pmDEN - GMP

2 stops28h 25mAir China

lun. 11/32:25 pmGMP - DEN

2 stops33h 59mAir China

Deal found 9/14

$1,265

jue. 10/306:43 amDEN - GMP

2 stops24h 22mMultiple Airlines

sáb. 11/18:00 amGMP - DEN

2 stops25h 43mMultiple Airlines

Deal found 9/14

$1,379

One-way flights from Colorado to Seoul
Search for one-way flight options from Colorado to Seoul. Find affordable one-way fares based on user searches. Data last updated septiembre 15, 2025.

dom. 10/510:29 pmDEN - ICN

2 stops50h 16mMultiple Airlines

Deal found 9/14

$320

sáb. 11/810:55 pmDEN - ICN

1 stop25h 15mMultiple Airlines

Deal found 9/13

$369

mar. 11/410:55 pmDEN - ICN

1 stop25h 15mMultiple Airlines

Deal found 9/13

$371

jue. 10/237:00 amDEN - ICN

2 stops41h 45mMultiple Airlines

Deal found 9/14

$401

mar. 9/308:41 pmDEN - ICN

2 stops57h 34mMultiple Airlines

Deal found 9/15

$414

lun. 11/39:48 amDEN - ICN

3 stops41h 37mMultiple Airlines

Deal found 9/13

$432

mar. 11/46:15 amDEN - GMP

2 stops36h 45mChina Eastern

Deal found 9/13

$533

dom. 2/85:15 pmDEN - GMP

3 stops48h 45mMultiple Airlines

Deal found 9/13

$661

lun. 11/31:23 pmDEN - GMP

2 stops37h 52mEVA Air

Deal found 9/14

$669

dom. 2/87:53 pmDEN - GMP

2 stops34h 12mJapan Airlines

Deal found 9/13

$671

mié. 10/15:44 amDEN - GMP

2 stops25h 06mMultiple Airlines

Deal found 9/15

$683

mié. 12/106:25 amDEN - GMP

2 stops45h 25mChina Eastern

Deal found 9/14

$814

Fly from

Fly to

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

jue. 11/27

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

lun. 12/15

10:45 am-5:35 pm

1 stop46h 50m

$1,022

DenverIncheon

DEN - ICN

DENICN

Denver Intl

sáb. 2/14

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

mié. 3/11

12:10 am-6:35 pm

1 stop33h 25m

$1,022

DenverIncheon

DEN - ICN

DENICN

Denver Intl

mié. 10/1

6:30 am-3:20 pm

2 stops41h 50m

Incheon Intl

mié. 10/15

8:55 am-6:24 pm

2 stops24h 29m

$1,071

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

lun. 2/16

3:40 pm-5:40 am

2 stops22h 00m

Incheon Intl

vie. 2/20

12:45 pm-8:02 pm

2 stops23h 17m

$1,088

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

dom. 11/2

6:20 pm-5:40 am

2 stops19h 20m

Incheon Intl

vie. 11/7

12:45 pm-11:59 pm

2 stops27h 14m

$1,088

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

mar. 11/11

5:05 pm-5:40 am

2 stops20h 35m

Incheon Intl

jue. 12/4

12:45 pm-4:54 pm

2 stops20h 09m

$1,088

DenverIncheon

DEN - ICN

DENICN

Denver Intl

mié. 10/1

7:55 pm-4:20 am

1 stop17h 25m

Incheon Intl

mié. 10/15

6:00 pm-7:38 pm

1 stop40h 38m

$1,146

DenverIncheon

DEN - ICN

DENICN

Denver Intl

lun. 9/29

5:44 am-3:30 pm

1 stop18h 46m

Incheon Intl

mar. 10/7

5:45 pm-10:05 pm

1 stop19h 20m

$1,158

DenverIncheon

DEN - ICN

DENICN

Denver Intl

sáb. 1/31

1:30 pm-9:05 am

2 stops27h 35m

Incheon Intl

vie. 2/20

12:10 am-5:35 pm

1 stop33h 25m

$1,178

DenverIncheon

DEN - ICN

DENICN

Denver Intl

lun. 10/20

7:02 pm-7:00 pm

3 stops32h 58m

Incheon Intl

lun. 10/27

8:35 pm-10:35 am

2 stops29h 00m

$1,184

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 45 results

...

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 $990). Flying from Colorado to Seoul in December is currently the most expensive (average of $1,633). 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?

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

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

Related info for your journey

How long is the flight from Colorado to Seoul?
Departing from Colorado to Seoul will take you 22h. 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 $990). Flying from Colorado to Seoul in December is currently the most expensive (average of $1,633). 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

Top 10 airlines flying from Colorado to Seoul

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$54	Average$129	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$189	Average$1,496	FlexibilityNo cancel fee	On-time69%
AIR PREMIA	Cheapest$585	Average$615	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$587	Average$1,097	FlexibilityNo cancel fee	On-timeN/A
WestJet	Cheapest$748	Average$1,213	FlexibilityNo cancel fee	On-time60%
Turkish Airlines	Cheapest$755	Average$895	FlexibilityNo cancel fee	On-time77%
Asiana Airlines	Cheapest$757	Average$1,227	FlexibilityNo cancel fee	On-time76%
Korean Air	Cheapest$843	Average$1,504	FlexibilityNo cancel fee	On-time81%
Air Canada	Cheapest$855	Average$1,193	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$877	Average$1,102	FlexibilityNo cancel fee	On-time71%

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$320+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Colorado to Seoul with Cheapflights

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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 septiembre 15, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Colorado to Seoul

Cheapest flights from Colorado to SeoulExplore 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 septiembre 15, 2025.

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 septiembre 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Colorado to Seoul that are best for you.

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.

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?

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 septiembre 15, 2025.

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?

What are the most popular routes from Colorado to Seoul?

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

How can I find direct flights from Colorado to Seoul?

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

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

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Alternative routes for Colorado to Seoul

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Top 10 airlines flying from Colorado to Seoul

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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 septiembre 15, 2025.