HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
South Korea

$412+ Cheap flights from Denver (DEN) to South Korea

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to South Korea 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 Denver to South Korea

Keep the following information in mind while searching for Denver to South Korea flight deals. Data was last updated November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$759
(Kiwi.com)

One-way from

$412
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,117
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 Denver Intl to South Korea
Search Deals
One-way flight from Denver Intl to South Korea
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($253 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Denver to South Korea

Cheapest flights from Denver to South Korea
Explore the most affordable flight options available from Denver to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/29:44 pmDEN - ICN
2 stops39h 26mMultiple Airlines
Tue 12/161:20 pmICN - DEN
1 stop36h 52mMultiple Airlines
Deal found 11/18$785
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/210:29 pmDEN - ICN
1 stop30h 01mMultiple Airlines
Fri 12/51:20 pmICN - DEN
1 stop26h 57mMultiple Airlines
Deal found 11/18$812
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 11/266:05 amDEN - ICN
1 stop22h 25mMultiple Airlines
Tue 12/29:20 pmICN - DEN
2 stops37h 08mMultiple Airlines
Deal found 11/17$857
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 11/184:08 pmDEN - ICN
2 stops44h 02mMultiple Airlines
Fri 12/126:55 pmICN - DEN
1 stop31h 17mMultiple Airlines
Deal found 11/17$886
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 11/184:08 pmDEN - ICN
2 stops40h 37mMultiple Airlines
Mon 12/86:55 pmICN - DEN
1 stop31h 17mMultiple Airlines
Deal found 11/17$906
This FlightHub deal was found by Cheapflights users on 11/17. 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.
Mon 12/16:25 amDEN - PUS
2 stops37h 10mChina Eastern
Sat 12/612:35 pmPUS - DEN
2 stops45h 57mChina Eastern
Deal found 11/17$914
This FlightHub deal was found by Cheapflights users on 11/16. 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.
Mon 12/16:25 amDEN - ICN
2 stops39h 05mChina Eastern
Wed 12/174:20 pmICN - DEN
2 stops42h 12mChina Eastern
Deal found 11/16$918
This oojo deal was found by Cheapflights users on 11/18. 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.
Tue 12/27:20 pmDEN - ICN
1 stop31h 00mTurkish Airlines
Mon 12/1512:10 amICN - DEN
1 stop33h 25mTurkish Airlines
Deal found 11/18$924
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 12/115:03 pmDEN - ICN
1 stop31h 17mMultiple Airlines
Thu 1/159:20 pmICN - DEN
2 stops27h 41mMultiple Airlines
Deal found 11/17$943
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 11/184:08 pmDEN - ICN
2 stops44h 02mMultiple Airlines
Sun 12/710:20 pmICN - DEN
1 stop17h 57mMultiple Airlines
Deal found 11/17$950
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/236:21 pmDEN - ICN
2 stops59h 14mMultiple Airlines
Fri 1/236:55 pmICN - DEN
1 stop31h 41mMultiple Airlines
Deal found 11/16$965
This Japan Airlines deal was found by Cheapflights users on 11/17. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:10 pmDEN - GMP
2 stops35h 55mMultiple Airlines
Thu 12/1812:05 pmGMP - DEN
2 stops20h 25mMultiple Airlines
Deal found 11/17$1,351

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to South Korea 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 November 18, 2025.
Use the filters below to find and compare flights from Denver to South Korea that are best for you.

Fly from

Denver

Fly to

South Korea

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 1/31

7:59 pm-6:35 pm

2 stops30h 36m

Incheon Intl

Sat 2/21

6:55 pm-9:57 am

1 stop31h 02m

$747

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Mon 12/1

6:25 am-11:35 am

2 stops37h 10m

Busan Gimhae

Sat 12/6

12:35 pm-6:32 pm

2 stops45h 57m

$914

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 1/31

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Fri 2/20

12:10 am-5:35 pm

1 stop33h 25m

$914

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Mon 1/12

11:49 am-6:35 pm

2 stops62h 46m

Incheon Intl

Mon 2/23

8:35 pm-10:42 am

2 stops30h 07m

$1,011

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 2/26

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Mon 3/2

10:45 am-5:35 pm

1 stop46h 50m

$1,021

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/16

11:49 am-6:35 pm

2 stops38h 46m

Incheon Intl

Mon 2/23

8:35 pm-10:42 am

2 stops30h 07m

$1,061

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/16

11:49 am-6:35 pm

2 stops38h 46m

Incheon Intl

Sun 2/22

8:35 pm-10:42 am

2 stops30h 07m

$1,070

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/16

11:49 am-6:35 pm

2 stops38h 46m

Incheon Intl

Sat 2/28

8:35 pm-10:42 am

2 stops30h 07m

$1,070

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 1/15

11:49 am-6:35 pm

2 stops62h 46m

Incheon Intl

Thu 2/26

8:35 pm-10:42 am

2 stops30h 07m

$1,070

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 1/15

11:49 am-6:35 pm

2 stops38h 46m

Incheon Intl

Sat 2/28

8:35 pm-10:42 am

2 stops30h 07m

$1,070

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 42 results
1
2
3
...
5

Best time to book a flight from Denver to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Denver 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 Denver to South Korea

What is the cheapest month to book a flight from Denver to South Korea?

Currently, February is the cheapest month in which you can book a flight from Denver to South Korea (average of $103). Flying from Denver to South Korea in June is currently the most expensive (average of $1,458). 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 DEN to KR?

Find hourly flight availability from Denver to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Denver to South Korea in the afternoon. If you’re flexible enough to do this you can expect to save up to 53% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Denver to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Denver to South Korea. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Denver to South Korea flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated November 18, 2025.
Read through reviews of airlines operating flights from Denver to South Korea, such as Korean Air, Asiana Airlines, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,167 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,167 reviews
Korean Air
8.4
Very good
1,167 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
487 reviews
Korean Air
8.4
Very good
1,167 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,003 reviews
Korean Air
8.4
Very good
1,167 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Turkish Airlines
7.3
Good
4,047 reviews
Korean Air
8.4
Very good
1,167 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,462 reviews
Korean Air
8.4
Very good
1,167 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Denver to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to South Korea?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to South Korea. It is only a 18.5 mi journey to Denver Intl (DEN) from Denver’s city center.

  • How long is the flight from Denver to South Korea?

    China Eastern, Turkish Airlines, and Alaska Airlines can get you from Denver to South Korea in just under 31h. Your travel time can differ by up to 31h 46m. Denver and South Korea are separated by a distance of 6186 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Denver to South Korea?

    Most travelers choose Denver Intl - Incheon Intl, Denver Intl - Seoul Gimpo Intl or Denver Intl - Busan Gimhae when deciding on the best route from Denver to South Korea.

  • Can I find deals for flights from Denver to South Korea that include hotel bookings?

    Yes. In addition to deals on Denver to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to South Korea?

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

  • Can I find deals for business class flights from Denver to South Korea?

    Yes. Cheapflights offers flight deals from Denver to South Korea 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 Denver to South Korea?

    Currently, February is the cheapest month in which you can book a flight from Denver to South Korea (average of $103). Flying from Denver to South Korea in June is currently the most expensive (average of $1,458). 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 Denver to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Narita flights
Denver to Haneda flights
Denver to Suvarnabhumi flights
Denver to Manila flights
Denver to Ho Chi Minh City flights
Denver to Incheon Intl flights
Denver to Kansai Intl flights
Denver to Taiwan Taoyuan Intl flights
Colorado Springs to Haneda flights
Colorado Springs to Narita flights
Denver to Osaka Itami flights
Denver to Singapore flights
Denver to Mumbai flights
Denver to New Delhi flights
Denver to Cebu City flights
Denver to Sung Shan flights
Denver to Kathmandu flights
Denver to Denpasar flights
Denver to Gimpo Intl flights
Denver to Soekarno-Hatta Intl flights
Denver to Hong Kong flights
Denver to Kuala Lumpur Intl flights
Denver to Hongqiao Intl flights
Denver to Kobe flights
Denver to Hyderabad flights
Denver to Chitose flights
Denver to Hanoi flights
Montrose to Suvarnabhumi flights
Denver to Dhaka flights
Denver to Phuket City flights
Denver to Pu Dong flights
Denver to Da Nang flights
Denver to Don Mueang Intl flights
Denver to Malé flights
Denver to Ahmedabad flights
Denver to Bangalore flights
Denver to Chiang Mai flights
Denver to Colombo flights
Aspen to Narita flights
Colorado Springs to Suvarnabhumi flights
Denver to Capital flights
Denver to Chennai flights
Denver to Beijing Daxing Intl flights
Denver to Okinawa flights
Denver to Chubu Centrair Intl flights
Denver to Tbilisi flights
Denver to Kolkata flights
Grand Junction to Suvarnabhumi flights
Colorado Springs to Kansai Intl flights
Denver to Tashkent flights

Top 10 airlines flying from Denver to South Korea

Discover the top 10 airlines that operate flights from Denver to South Korea. 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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$129FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$189Average$660FlexibilityNo cancel feeOn-time69%
DeltaCheapest$474Average$1,108FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$585Average$615FlexibilityNo 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$1,505FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$875Average$1,219FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$1,077FlexibilityNo cancel feeOn-time71%

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.