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$374+ Cheap flights from Denver (DEN) 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEL
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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Cheap flight deals from Denver to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$752
(Kiwi.com)

One-way from

$374
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,140
Provider with most accurate pricing for Denver Intl-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Seoul (SEL) flights.
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From Denver Intl to Seoul (SEL)
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One-way flight from Denver Intl to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Denver to Seoul

Cheapest flights from Denver to Seoul
Explore the most affordable flight options available from Denver to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/5. 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.
Sat 2/1410:43 pmDEN - ICN
1 stop38h 27mMultiple Airlines
Sat 2/289:20 pmICN - DEN
2 stops50h 34mMultiple Airlines
Deal found 1/5$752
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 2/411:25 amDEN - ICN
1 stop25h 45mMultiple Airlines
Wed 2/256:55 pmICN - DEN
1 stop31h 07mMultiple Airlines
Deal found 1/5$763
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 2/39:44 pmDEN - ICN
1 stop39h 26mMultiple Airlines
Tue 2/109:20 pmICN - DEN
2 stops30h 30mMultiple Airlines
Deal found 1/6$771
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Fri 1/3010:43 pmDEN - ICN
1 stop25h 37mMultiple Airlines
Sun 2/89:20 pmICN - DEN
2 stops50h 34mMultiple Airlines
Deal found 1/6$781
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 4/710:51 pmDEN - ICN
1 stop25h 54mMultiple Airlines
Tue 4/289:10 pmICN - DEN
2 stops29h 15mMultiple Airlines
Deal found 1/5$805
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 2/26:05 amDEN - ICN
1 stop31h 05mMultiple Airlines
Mon 2/96:55 pmICN - DEN
2 stops49h 01mMultiple Airlines
Deal found 1/5$808
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 3/189:00 amDEN - ICN
1 stop29h 10mMultiple Airlines
Mon 3/308:35 pmICN - DEN
2 stops28h 12mMultiple Airlines
Deal found 1/6$811
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 1/296:30 amDEN - ICN
2 stops31h 10mMultiple Airlines
Sat 2/76:55 pmICN - DEN
1 stop31h 07mMultiple Airlines
Deal found 1/5$817
This Kiwi.com deal was found by Cheapflights users on 1/5. 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.
Sat 4/410:51 pmDEN - ICN
1 stop25h 54mMultiple Airlines
Sat 4/259:10 pmICN - DEN
2 stops29h 15mMultiple Airlines
Deal found 1/5$837
This Cheapflightsfares deal was found by Cheapflights users on 1/6. 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.
Tue 2/38:50 pmDEN - GMP
2 stops22h 30mANA
Tue 2/1012:25 pmGMP - DEN
2 stops22h 51mANA
Deal found 1/6$1,191
This Booking.com deal was found by Cheapflights users on 1/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:50 pmDEN - GMP
2 stops29h 45mANA
Wed 2/117:45 amGMP - DEN
2 stops27h 31mANA
Deal found 1/5$1,219
This Orbitz deal was found by Cheapflights users on 1/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/28:50 pmDEN - GMP
2 stops22h 30mMultiple Airlines
Mon 2/93:50 pmGMP - DEN
2 stops19h 47mMultiple Airlines
Deal found 1/5$1,388

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Seoul 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 January 7, 2026.
Use the filters below to find and compare flights from Denver to Seoul that are best for you.

Fly from

Denver

Fly to

Seoul

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/30

10:43 pm-4:20 pm

1 stop25h 37m

Incheon Intl

Sun 2/8

6:55 pm-10:02 am

1 stop31h 07m

$891

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 3/14

10:30 pm-8:30 pm

1 stop31h 00m

Incheon Intl

Sat 3/21

8:35 pm-9:47 am

2 stops52h 12m

$898

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 2/11

5:09 pm-3:55 pm

1 stop30h 46m

Incheon Intl

Tue 2/17

9:20 pm-7:54 am

2 stops26h 34m

$911

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 2/26

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Wed 3/11

10:45 am-6:35 pm

1 stop46h 50m

$999

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 2/7

7:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Mon 2/16

12:10 am-5:35 pm

1 stop33h 25m

$1,000

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 3/31

7:16 pm-4:05 pm

2 stops29h 49m

Incheon Intl

Wed 4/8

2:30 am-12:33 pm

2 stops25h 03m

$1,026

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 1/16

7:26 pm-4:00 pm

2 stops28h 34m

Incheon Intl

Fri 1/23

3:00 pm-12:37 pm

2 stops37h 37m

$1,046

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 1/25

7:26 pm-5:10 pm

2 stops29h 44m

Incheon Intl

Sun 2/1

1:45 pm-12:26 pm

2 stops38h 41m

$1,071

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 2/4

7:26 pm-4:00 pm

2 stops28h 34m

Incheon Intl

Wed 2/11

3:00 pm-12:37 pm

2 stops37h 37m

$1,071

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Wed 2/4

8:50 pm-6:35 pm

2 stops29h 45m

Seoul Gimpo Intl

Wed 2/11

7:45 am-7:16 pm

2 stops27h 31m

$1,219

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 35 results
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Compare providers for flights from Denver to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Seoul in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Seoul flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Seoul flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Seoul flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Seoul

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

How far ahead should I book a flight from Denver to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Seoul. Price data was last updated on January 2, 2026.

Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Denver to Seoul (average of $189). Flying from Denver to Seoul in June is currently the most expensive (average of $1,408). 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.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated January 7, 2026.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, and Delta from Denver to Seoul by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
500 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
8,021 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
9,138 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
10,600 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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 Seoul. 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 Seoul?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly out of when you book flights from Denver to Seoul. 10 airlines have flights from Denver Intl to Seoul on a regular basis. Booking flights from Denver Intl to Seoul should not be difficult; the airport handles an average of 0 outbound flights to Seoul per day.

  • How long is the flight from Denver to Seoul?

    Turkish Airlines, ANA, and Japan Airlines can get you from Denver to Seoul in just under 24h 50m. Your travel time can differ by up to 6h 10m. Airlines will cover a distance of 6168 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Denver to Seoul round-trip?

    Frontier, at $54, was found to be the cheapest airline from Denver to Seoul.Alternate airlines to your destination round-trip include United Airlines and Delta. You may be able to fly from Denver to Seoul for 95% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $469. Users have also found prices from $553 and $575 on Asiana Airlines and Air Canada, respectively.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Denver to Seoul (average of $189). Flying from Denver to Seoul in June is currently the most expensive (average of $1,408). 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 Denver to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Incheon Intl flights
Denver to Gimpo Intl flights
Denver to Busan flights
Colorado Springs to Incheon Intl flights
Denver to Cheongju flights

Top 10 airlines flying from Denver to Seoul

Discover the top 10 airlines that operate flights from Denver to Seoul. 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 January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$146FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$187Average$660FlexibilityNo cancel feeOn-time69%
DeltaCheapest$474Average$1,099FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$585Average$615FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$741Average$1,257FlexibilityNo cancel feeOn-time76%
WestJetCheapest$748Average$1,213FlexibilityNo cancel feeOn-time60%
Korean AirCheapest$838Average$1,621FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$865Average$995FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$877Average$1,077FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$975Average$1,225FlexibilityNo cancel feeOn-time67%

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