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$358+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
1 adult, Economy
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Cheap 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 February 23, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/20. 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 4/219:30 pm
DEN
-
ICN
1 stop27h 20m
Multiple Airlines
Mon 5/116:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/20$699
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Sun 4/266:00 am
DEN
-
ICN
1 stop18h 50m
Multiple Airlines
Wed 5/66:00 pm
ICN
-
DEN
2 stops21h 19m
Multiple Airlines
Deal found 2/21$741
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 4/276:00 am
DEN
-
ICN
1 stop18h 50m
Multiple Airlines
Mon 5/116:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/22$758
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 4/206:00 am
DEN
-
ICN
1 stop18h 50m
Multiple Airlines
Tue 5/59:10 pm
ICN
-
DEN
2 stops37h 39m
Multiple Airlines
Deal found 2/20$770
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 4/276:00 am
DEN
-
ICN
1 stop18h 50m
Multiple Airlines
Tue 5/129:45 am
ICN
-
DEN
2 stops25h 04m
Multiple Airlines
Deal found 2/22$771
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 4/276:00 am
DEN
-
ICN
1 stop18h 50m
Multiple Airlines
Sun 5/106:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/22$791
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 4/289:25 pm
DEN
-
ICN
1 stop31h 45m
Multiple Airlines
Mon 5/116:00 pm
ICN
-
DEN
2 stops32h 05m
Multiple Airlines
Deal found 2/22$796
This CheapOair deal was found by Cheapflights users on 2/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:05 am
DEN
-
ICN
1 stop17h 10m
Multiple Airlines
Mon 4/138:40 pm
ICN
-
DEN
2 stops30h 55m
Multiple Airlines
Deal found 2/20$799
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Sat 8/17:25 am
DEN
-
PUS
2 stops37h 10m
China Eastern
Fri 8/285:50 pm
PUS
-
DEN
2 stops39h 20m
China Eastern
Deal found 2/21$916
This Ovago deal was found by Cheapflights users on 2/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:30 am
DEN
-
PUS
2 stops43h 20m
China Eastern
Thu 4/165:50 pm
PUS
-
DEN
2 stops39h 05m
China Eastern
Deal found 2/22$993
This Trip.com deal was found by Cheapflights users on 2/22. 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.
Wed 4/159:25 pm
DEN
-
PUS
2 stops42h 35m
Multiple Airlines
Sat 4/252:20 pm
PUS
-
DEN
2 stops34h 27m
Multiple Airlines
Deal found 2/22$998
This Gurufare deal was found by Cheapflights users on 2/22. 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.
Fri 4/177:00 am
DEN
-
PUS
2 stops44h 00m
Multiple Airlines
Fri 4/247:10 pm
PUS
-
DEN
2 stops30h 44m
Multiple Airlines
Deal found 2/22$1,180

Find 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 February 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$699
(Kiwi.com)

One-way from

$358
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,047
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. 6% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 23, 2026.
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

Mon 4/20

6:00 am-3:50 pm

1 stop18h 50m

Incheon Intl

Tue 5/5

9:10 pm-7:49 pm

2 stops37h 39m

$789

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 3/1

6:00 am-5:10 am

1 stop31h 10m

Incheon Intl

Sat 3/7

1:20 pm-12:30 am

1 stop27h 10m

$981

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 3/11

6:30 am-8:45 pm

2 stops47h 15m

Incheon Intl

Tue 6/9

8:55 am-6:10 pm

2 stops24h 15m

$997

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Wed 4/15

9:25 pm-7:00 am

2 stops42h 35m

Busan Gimhae

Sat 4/25

2:20 pm-9:47 am

2 stops34h 27m

$998

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 5/19

7:15 am-5:15 am

1 stop31h 00m

Incheon Intl

Mon 6/1

6:00 pm-9:45 am

1 stop30h 45m

$1,043

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 5/20

7:15 am-9:35 pm

2 stops47h 20m

Incheon Intl

Sun 5/31

6:00 pm-9:45 am

1 stop30h 45m

$1,070

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 5/21

9:00 pm-6:45 pm

2 stops54h 45m

Incheon Intl

Mon 6/1

6:00 pm-9:45 am

1 stop30h 45m

$1,145

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 5/2

5:30 am-3:45 pm

1 stop19h 15m

Incheon Intl

Sat 5/16

5:50 pm-12:06 am

2 stops21h 16m

$1,147

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 5/20

12:15 pm-9:35 pm

2 stops42h 20m

Incheon Intl

Tue 6/2

1:00 pm-3:34 pm

1 stop17h 34m

$1,149

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Fri 4/17

7:00 am-6:00 pm

2 stops44h 00m

Busan Gimhae

Fri 4/24

7:10 pm-10:54 am

2 stops30h 44m

$1,180

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 41 results
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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 $143). Flying from Denver to South Korea in June is currently the most expensive (average of $1,322). 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 February 23, 2026.

A simple way to save on the total cost of your ticket is to fly from Denver to South Korea at noon. If you’re flexible enough to do this you can expect to save up to 59% on your trip compared to booking a flight in the evening.

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 March 30, 2025.

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 February 23, 2026.
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
1,195 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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
1,195 reviews
Korean Air
8.4
Very good
1,195 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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
8.1
Very good
502 reviews
Korean Air
8.4
Very good
1,195 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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
8,240 reviews
Korean Air
8.4
Very good
1,195 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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.
United Airlines
7.4
Good
9,342 reviews
Korean Air
8.4
Very good
1,195 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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
10,742 reviews
Korean Air
8.4
Very good
1,195 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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, Air China, and Japan Airlines can get you from Denver to South Korea in just under 22h 39m. Your travel time can differ by up to 24h 36m. Denver and South Korea are separated by a distance of 6168 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Denver to South Korea one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $528. Asiana Airlines flights start at $553 while deals on Delta start at $582 one-way.

  • 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 $143). Flying from Denver to South Korea in June is currently the most expensive (average of $1,322). 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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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 February 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$150FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$187Average$660FlexibilityNo cancel feeOn-time69%
DeltaCheapest$474Average$998FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$585Average$616FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$586Average$1,590FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$740Average$1,257FlexibilityNo cancel feeOn-time76%
WestJetCheapest$748Average$1,176FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$816Average$1,077FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$870Average$1,037FlexibilityNo cancel feeOn-time77%
China EasternCheapest$914Average$1,754FlexibilityNo cancel feeOn-time62%

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