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$351+ Cheap flights from Seoul (SEL) 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — DEN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Seoul to Colorado

Keep the following information in mind while searching for Seoul to Colorado flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$727
(WhyPayMore)

One-way from

$351
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$891
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 Seoul (SEL) to Colorado
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One-way flight from Seoul (SEL) to Colorado
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Highest demand for flights based on searches. 15% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 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 Seoul to Colorado

Cheapest flights from Seoul to Colorado
Explore the most affordable flight options available from Seoul to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This WhyPayMore deal was found by Cheapflights users on 3/27. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:45 pmICN - DEN
1 stop15h 35mAir Canada
Thu 5/227:15 pmDEN - ICN
1 stop29h 50mAir Canada
Deal found 3/27$727
This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 4/17:20 pmICN - DEN
1 stop19h 28mDelta
Sun 4/62:20 pmDEN - ICN
1 stop35h 10mDelta
Deal found 3/27$932
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 4/812:45 pmICN - DEN
1 stop20h 24mMultiple Airlines
Fri 4/1110:57 pmDEN - ICN
2 stops54h 33mMultiple Airlines
Deal found 3/27$955
This United Airlines deal was found by Cheapflights users on 3/26. 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 6/311:30 amICN - DEN
2 stops23h 29mUnited Airlines
Wed 6/251:25 pmDEN - ICN
2 stops23h 55mUnited Airlines
Deal found 3/26$960
This WestJet deal was found by Cheapflights users on 3/27. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/78:45 pmICN - DEN
1 stop29h 42mWestJet
Fri 7/116:15 amDEN - ICN
2 stops45h 30mWestJet
Deal found 3/27$1,063
This Air Canada deal was found by Cheapflights users on 3/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:45 pmICN - COS
2 stops19h 09mMultiple Airlines
Sun 10/55:30 amCOS - ICN
2 stops19h 35mMultiple Airlines
Deal found 3/28$1,083
This oojo deal was found by Cheapflights users on 3/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/232:40 pmICN - DEN
1 stop16h 28mAsiana Airlines
Wed 4/237:35 pmDEN - ICN
1 stop17h 45mAsiana Airlines
Deal found 3/27$1,274
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:55 amGMP - DEN
2 stops19h 51mJapan Airlines
Wed 4/238:19 pmDEN - GMP
2 stops30h 41mJapan Airlines
Deal found 3/28$1,335
This Singapore Airlines deal was found by Cheapflights users on 3/27. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:50 pmICN - DEN
3 stops34h 50mSingapore Airlines
Thu 9/46:00 amDEN - ICN
2 stops36h 50mSingapore Airlines
Deal found 3/27$1,442
This WhyPayMore deal was found by Cheapflights users on 3/27. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/232:30 pmICN - DEN
1 stop24h 19mKorean Air
Sun 7/2012:59 amDEN - ICN
1 stop22h 11mKorean Air
Deal found 3/27$1,444
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/2211:30 amICN - COS
2 stops38h 19mUnited Airlines
Sat 4/265:24 pmCOS - ICN
2 stops19h 56mUnited Airlines
Deal found 3/27$1,472
This YBTour deal was found by Cheapflights users on 3/27. 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 7/712:40 pmGMP - DEN
2 stops25h 11mANA
Fri 7/118:02 amDEN - GMP
2 stops36h 03mANA
Deal found 3/27$1,475

Cheapflights Fare Finder

Customize your flight search to find flights from Seoul 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 March 28, 2025.
Use the filters below to find and compare flights from Seoul to Colorado that are best for you.

Fly from

Seoul

Fly to

Colorado

Route

Depart

Return

Price

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 5/13

5:45 pm-8:51 am

2 stops30h 06m

Denver Intl

Thu 5/22

7:15 pm-4:05 pm

1 stop29h 50m

$727

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 4/8

12:45 pm-6:09 pm

1 stop20h 24m

Denver Intl

Fri 4/11

10:57 pm-8:30 pm

2 stops54h 33m

$955

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 6/3

11:30 am-7:59 pm

2 stops23h 29m

Denver Intl

Wed 6/25

1:25 pm-4:20 am

2 stops23h 55m

$960

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 7/7

8:45 pm-11:27 am

1 stop29h 42m

Denver Intl

Fri 7/11

6:15 am-6:45 pm

2 stops45h 30m

$1,063

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Thu 9/18

5:45 pm-9:54 pm

2 stops19h 09m

Colorado Springs

Sun 10/5

5:30 am-4:05 pm

2 stops19h 35m

$1,083

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Wed 4/23

2:40 pm-4:08 pm

1 stop16h 28m

Denver Intl

Wed 4/23

7:35 pm-4:20 am

1 stop17h 45m

$1,274

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Wed 4/23

7:55 am-12:46 pm

2 stops19h 51m

Denver Intl

Wed 4/23

8:19 pm-6:00 pm

2 stops30h 41m

$1,335

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 8/28

11:50 pm-7:40 pm

3 stops34h 50m

Denver Intl

Thu 9/4

6:00 am-9:50 am

2 stops36h 50m

$1,442

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 6/23

2:30 pm-11:49 pm

1 stop24h 19m

Denver Intl

Sun 7/20

12:59 am-2:10 pm

1 stop22h 11m

$1,444

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Tue 4/22

11:30 am-10:49 am

2 stops38h 19m

Colorado Springs

Sat 4/26

5:24 pm-4:20 am

2 stops19h 56m

$1,472

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 33 results
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Best time to book a flight from Seoul to Colorado

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

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

Currently, October is the cheapest month in which you can book a flight from Seoul to Colorado (average of $197). Flying from Seoul 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 SEL to CO?

Find hourly flight availability from Seoul 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 March 28, 2025.

When flying from Seoul to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 March 28, 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and ANA from Seoul to Colorado by reading reviews from past customers. 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
1,050 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,050 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Japan Airlines
8.3
Very good
1,440 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
ANA
8.3
Very good
829 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Asiana Airlines
8.2
Very good
440 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,285 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from Seoul 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 Seoul to Colorado one-way?

    The cheapest airlines for a one-way flight from Seoul to Colorado are WestJet ($404), American Airlines ($566), and Air Canada ($568).

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

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

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Seoul to Colorado (average of $197). Flying from Seoul 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 Seoul to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Seoul to Colorado

Discover the top 6 airlines that operate flights from Seoul 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$685Average$1,354FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$700Average$897FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$811Average$980FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$953Average$1,123FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,006Average$1,055FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$1,014Average$1,295FlexibilityNo cancel feeOn-time76%
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