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Incheon Intl

$357+ Cheap flights from Denver (DEN) to Incheon Intl (ICN)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Denver to Incheon Intl

Cheapest flights from Denver to Incheon Intl
Explore the most affordable flight options available from Denver to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/2310:29 pm
DEN
-
ICN
1 stop39h 01m
Multiple Airlines
Sat 5/96:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/10$749
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 15m
Multiple Airlines
Mon 5/116:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/12$751
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/167:15 am
DEN
-
ICN
2 stops26h 10m
Multiple Airlines
Sat 5/26:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/10$756
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/237:15 am
DEN
-
ICN
2 stops48h 10m
Multiple Airlines
Sat 5/166:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/10$769
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/139:00 pm
DEN
-
ICN
2 stops41h 15m
Multiple Airlines
Wed 4/226:20 pm
ICN
-
DEN
1 stop30h 22m
Multiple Airlines
Deal found 2/10$774
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 15m
Multiple Airlines
Sat 5/96:00 pm
ICN
-
DEN
2 stops21h 19m
Multiple Airlines
Deal found 2/12$776
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 4/259:30 pm
DEN
-
ICN
1 stop27h 15m
Multiple Airlines
Mon 5/116:00 pm
ICN
-
DEN
2 stops24h 59m
Multiple Airlines
Deal found 2/12$777
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/149:00 pm
DEN
-
ICN
2 stops30h 35m
Multiple Airlines
Wed 4/226:00 pm
ICN
-
DEN
1 stop30h 42m
Multiple Airlines
Deal found 2/11$779
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 4/259:30 pm
DEN
-
ICN
1 stop27h 15m
Multiple Airlines
Sat 5/96:00 pm
ICN
-
DEN
2 stops21h 19m
Multiple Airlines
Deal found 2/12$782

Find flight deals from Denver to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Incheon Intl (ICN). 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$749
(Kiwi.com)

One-way from

$357
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$981
Provider with most accurate pricing for Denver Intl-Incheon Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Incheon Intl flights.
Search Deals
From Denver Intl to Incheon Intl
Search Deals
One-way flight from Denver Intl to Incheon Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($318 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($58 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 Incheon Intl 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 13, 2026.
Use the filters below to find and compare flights from Denver to Incheon Intl Airport that are best for you.

Fly from

Denver

Fly to

Incheon Intl

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 4/22

9:30 pm-3:45 pm

1 stop27h 15m

Incheon Intl

Fri 5/8

6:00 pm-10:03 am

2 stops31h 03m

$776

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 4/21

9:30 pm-3:45 pm

1 stop27h 15m

Incheon Intl

Sat 5/9

6:00 pm-9:42 am

1 stop30h 42m

$802

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 4/16

10:29 pm-8:10 pm

1 stop30h 41m

Incheon Intl

Sat 5/2

6:00 pm-9:42 am

1 stop30h 42m

$808

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Mon 4/13

9:20 am-4:30 am

1 stop28h 10m

Incheon Intl

Wed 4/22

6:20 pm-9:42 am

1 stop30h 22m

$891

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 4/23

10:29 pm-4:30 am

2 stops39h 01m

Incheon Intl

Sat 5/9

1:00 pm-3:52 pm

1 stop17h 52m

$919

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 2/25

8:05 am-5:10 pm

1 stop17h 05m

Incheon Intl

Tue 3/10

5:55 pm-5:44 pm

1 stop14h 49m

$930

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 4/19

7:00 am-4:30 am

1 stop30h 30m

Incheon Intl

Thu 4/30

8:00 am-5:49 pm

2 stops24h 49m

$933

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 4/12

4:11 pm-12:40 pm

2 stops29h 29m

Incheon Intl

Tue 4/21

2:30 am-12:35 pm

2 stops25h 05m

$939

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 2/18

8:05 am-5:10 pm

1 stop17h 05m

Incheon Intl

Wed 3/4

6:55 pm-5:44 pm

1 stop14h 49m

$942

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 4/19

7:00 am-4:30 am

1 stop30h 30m

Incheon Intl

Fri 5/1

10:00 pm-9:45 am

1 stop26h 45m

$944

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 19 results
1
2

Compare providers for flights from Denver to Incheon Intl

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 Incheon Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Incheon Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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-Incheon Intl Airport 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 Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl Airport

How far ahead should I book a flight from Denver to Incheon Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Incheon Intl. Price data was last updated on February 6, 2026.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Incheon Intl Airport. 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 Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Denver to Incheon Intl Airport (average of $141). Flying from Denver to Incheon Intl Airport 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.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated February 13, 2026.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, and Delta from Denver to Incheon Intl Airport 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
1,191 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Overall

8.4

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
1,191 reviews
Korean Air
8.4
Very good
1,191 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Overall

8.4

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
503 reviews
Korean Air
8.4
Very good
1,191 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Overall

8.4

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
8,196 reviews
Korean Air
8.4
Very good
1,191 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Overall

8.4

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
9,285 reviews
Korean Air
8.4
Very good
1,191 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Overall

8.4

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
10,717 reviews
Korean Air
8.4
Very good
1,191 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Overall

8.4

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 Incheon Intl. 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 Incheon Intl?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to Incheon Intl. You should not have trouble finding flights to Incheon Intl from Denver Intl; the airport handles an average of 0 outbound flights to Incheon Intl per day. You should also have plenty of airline options to choose from since 10 airlines have flights from the Denver airport to Incheon Intl. It is only a 18.5 mi journey to Denver Intl (DEN) from Denver’s city center.

  • What are the cheapest airlines flying from Denver to Incheon Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to Incheon Intl Airport, with prices starting at $54. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $187 and $256, respectively. Frontier is 95% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Denver to Incheon Intl Airport one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $528. However, be on the lookout for offers from Asiana Airlines and Delta, as they are both options that can get you from Denver to Incheon Intl Airport for a low price.

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

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

  • How can I find direct flights from Denver to Incheon Intl?

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

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

    Yes. Cheapflights offers flight deals from Denver to Incheon Intl 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 Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Denver to Incheon Intl Airport (average of $141). Flying from Denver to Incheon Intl Airport 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

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Alternative routes for Denver to Incheon Intl

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

Top 10 airlines flying from Denver to Incheon Intl

Discover the top 10 airlines that operate flights from Denver to Incheon Intl. 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 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$146FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$187Average$660FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$998FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$585Average$615FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$586Average$1,588FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$740Average$1,260FlexibilityNo cancel feeOn-time76%
WestJetCheapest$748Average$1,213FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$816Average$1,077FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$859Average$999FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$975Average$1,231FlexibilityNo cancel feeOn-time67%

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