HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$436+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — DEN
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seoul to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$661
(Trip.com)

One-way from

$436
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$1,041
Provider with most accurate pricing for Seoul (SEL)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Denver Intl flights.
Search Deals
From Seoul (SEL) to Colorado
Search Deals
One-way flight from Seoul (SEL) to Colorado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 May 1, 2025.

This Trip.com deal was found by Cheapflights users on 5/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/192:40 pmICN - DEN
2 stops28h 20mMultiple Airlines
Mon 6/28:25 amDEN - ICN
1 stop28h 55mMultiple Airlines
Deal found 5/1$661
This United Airlines deal was found by Cheapflights users on 5/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:30 amICN - DEN
1 stop20h 05mUnited Airlines
Thu 9/1811:40 amDEN - ICN
1 stop25h 40mUnited Airlines
Deal found 5/1$695
This United Airlines deal was found by Cheapflights users on 4/30. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/711:30 amICN - COS
2 stops25h 24mUnited Airlines
Mon 9/2912:50 pmCOS - ICN
2 stops24h 30mUnited Airlines
Deal found 4/30$745
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/234:40 pmICN - DEN
2 stops20h 50mDelta
Mon 6/27:45 amDEN - ICN
1 stop17h 55mDelta
Deal found 5/1$792
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/307:20 pmICN - DEN
1 stop17h 27mKorean Air
Sat 6/77:45 amDEN - ICN
1 stop17h 45mKorean Air
Deal found 4/30$839
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:50 pmICN - DEN
2 stops30h 00mAir Canada
Tue 12/168:45 amDEN - ICN
1 stop16h 20mAir Canada
Deal found 4/30$878
This American Airlines deal was found by Cheapflights users on 5/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:25 pmICN - DEN
2 stops33h 04mAmerican Airlines
Thu 8/285:31 pmDEN - ICN
2 stops30h 59mAmerican Airlines
Deal found 5/1$886
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:25 pmICN - DEN
2 stops31h 42mAlaska Airlines
Wed 8/279:18 pmDEN - ICN
2 stops30h 42mAlaska Airlines
Deal found 5/1$1,052
This Gotogate deal was found by Cheapflights users on 5/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1912:40 pmGMP - DEN
2 stops24h 35mANA
Thu 7/241:25 pmDEN - GMP
2 stops30h 40mANA
Deal found 5/1$1,110
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/224:40 pmICN - COS
2 stops17h 13mDelta
Mon 6/98:15 amCOS - ICN
2 stops41h 25mDelta
Deal found 5/1$1,114
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/88:45 pmICN - DEN
1 stop29h 42mWestJet
Sun 7/137:40 pmDEN - ICN
1 stop32h 05mWestJet
Deal found 4/30$1,124
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/227:55 amGMP - DEN
2 stops19h 18mJapan Airlines
Tue 5/278:20 pmDEN - GMP
2 stops30h 40mJapan Airlines
Deal found 4/30$1,328

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 May 1, 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

Mon 5/19

2:40 pm-4:00 am

2 stops28h 20m

Denver Intl

Mon 6/2

8:25 am-4:20 am

1 stop28h 55m

$661

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 9/9

11:30 am-5:55 pm

2 stops21h 25m

Denver Intl

Thu 9/18

2:45 pm-4:20 am

2 stops22h 35m

$695

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Sun 9/7

11:30 am-9:54 pm

2 stops25h 24m

Colorado Springs

Mon 9/29

12:50 pm-4:20 am

2 stops24h 30m

$745

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/23

4:40 pm-10:30 pm

2 stops20h 50m

Denver Intl

Mon 6/2

7:45 am-4:40 pm

1 stop17h 55m

$792

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/30

7:20 pm-9:47 pm

1 stop17h 27m

Denver Intl

Sat 6/7

7:45 am-4:30 pm

1 stop17h 45m

$839

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 8/18

5:25 pm-11:29 am

2 stops33h 04m

Denver Intl

Thu 8/28

5:31 pm-3:30 pm

2 stops30h 59m

$886

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 7/17

5:45 pm-7:30 pm

1 stop16h 45m

Denver Intl

Sat 7/26

11:35 am-4:05 pm

1 stop37h 30m

$1,001

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 8/18

9:25 pm-2:07 pm

2 stops31h 42m

Denver Intl

Wed 8/27

9:18 pm-7:00 pm

2 stops30h 42m

$1,052

SeoulDenver

GMP - DEN

GMPDEN

Seoul Gimpo Intl

Mon 5/19

12:40 pm-10:15 pm

2 stops24h 35m

Denver Intl

Thu 7/24

1:25 pm-11:05 am

2 stops30h 40m

$1,110

IncheonColorado Springs

ICN - COS

ICNCOS

Incheon Intl

Thu 5/22

4:40 pm-6:53 pm

2 stops17h 13m

Colorado Springs

Mon 6/9

8:15 am-4:40 pm

2 stops41h 25m

$1,114

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 40 results
1
2
3
4

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 May 1, 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 May 1, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air and Japan Airlines 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.
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,069 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very good
1,464 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very good
852 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Singapore Airlines
8.1
Very good
1,292 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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 American Airlines ($450), WestJet ($541), and Delta ($564).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seoul to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to John F Kennedy Intl flights
Incheon Intl to Los Angeles flights
Incheon Intl to Newark flights
Incheon Intl to LaGuardia flights
Incheon Intl to Seattle flights
Incheon Intl to Honolulu flights
Incheon Intl to San Francisco flights
Incheon Intl to Dallas/Fort Worth flights
Incheon Intl to Dulles Intl flights
Gimpo Intl to John F Kennedy Intl flights
Incheon Intl to O'Hare Intl flights
Gimpo Intl to Los Angeles flights
Incheon Intl to Atlanta flights
Gimpo Intl to Honolulu flights
Incheon Intl to Boston flights
Incheon Intl to Ontario flights
Gimpo Intl to San Francisco flights
Incheon Intl to Las Vegas flights
Incheon Intl to San Jose flights
Incheon Intl to Detroit flights
Gimpo Intl to Newark flights
Incheon Intl to Santa Ana flights
Incheon Intl to Reagan-National flights
Incheon Intl to Burbank flights
Incheon Intl to Baltimore flights
Incheon Intl to Oakland flights
Incheon Intl to Love Field flights
Incheon Intl to Minneapolis flights
Gimpo Intl to O'Hare Intl flights
Busan to Honolulu flights
Incheon Intl to Raleigh flights
Incheon Intl to Tampa flights
Gimpo Intl to Boston flights
Incheon Intl to Midway flights
Incheon Intl to Denver flights
Incheon Intl to Orlando flights
Incheon Intl to Salt Lake City flights
Gimpo Intl to Baltimore flights
Gimpo Intl to Atlanta flights
Incheon Intl to Kailua-Kona flights
Busan to Newark flights
Busan to Dallas/Fort Worth flights
Busan to Los Angeles flights

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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$685Average$1,273FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$696Average$897FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$735Average$963FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$910Average$1,122FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,006Average$1,035FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$1,014Average$1,173FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Privacy Preferences©2025 Cheapflights