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$405+ Cheap flights from Incheon Intl (ICN) to Denver (DEN)

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
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Cheap flight deals from Incheon Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Denver (DEN). 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 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$675
(flugladen.de)

One-way from

$405
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$1,431
Provider with most accurate pricing for Incheon Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Incheon Intl-Denver Intl flights.
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From Incheon Intl to Denver Intl
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One-way flight from Incheon Intl to Denver Intl
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Highest demand for flights based on searches. 12% potential increase in price ($134 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 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 Incheon Intl to Denver

Cheapest flights from Incheon Intl to Denver
Explore the most affordable flight options available from Incheon Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 12, 2026.

This YBTour deal was found by Cheapflights users on 1/10. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:00 pm
ICN
-
DEN
1 stop17h 56m
Multiple Airlines
Tue 4/217:24 pm
DEN
-
ICN
1 stop18h 51m
Multiple Airlines
Deal found 1/10$672
This flugladen.de deal was found by Cheapflights users on 1/12. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/298:35 pm
ICN
-
DEN
1 stop19h 00m
Hawaiian Airlines
Wed 2/117:00 am
DEN
-
ICN
1 stop19h 35m
Hawaiian Airlines
Deal found 1/12$675
This FlightHub deal was found by Cheapflights users on 1/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/289:00 pm
ICN
-
DEN
1 stop17h 15m
Asiana Airlines
Wed 2/117:40 pm
DEN
-
ICN
1 stop18h 05m
Asiana Airlines
Deal found 1/11$701
This Mytrip deal was found by Cheapflights users on 1/9. 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 5/268:40 pm
ICN
-
DEN
1 stop17h 13m
Asiana Airlines
Thu 6/257:45 pm
DEN
-
ICN
1 stop18h 15m
Asiana Airlines
Deal found 1/9$716
This YBTour deal was found by Cheapflights users on 1/12. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:00 pm
ICN
-
DEN
1 stop17h 59m
Multiple Airlines
Fri 6/57:15 pm
DEN
-
ICN
1 stop19h 00m
Multiple Airlines
Deal found 1/12$719
This SmartFares deal was found by Cheapflights users on 1/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:00 pm
ICN
-
DEN
1 stop17h 59m
Multiple Airlines
Fri 6/57:15 pm
DEN
-
ICN
1 stop19h 00m
Multiple Airlines
Deal found 1/10$752
This KAYAK deal was found by Cheapflights users on 1/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:00 pm
ICN
-
DEN
1 stop17h 59m
Multiple Airlines
Fri 5/297:15 pm
DEN
-
ICN
1 stop19h 00m
Multiple Airlines
Deal found 1/10$788
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:35 pm
ICN
-
DEN
1 stop19h 24m
Alaska Airlines
Sat 5/911:50 am
DEN
-
ICN
1 stop38h 40m
Alaska Airlines
Deal found 1/12$803
This Asiana Airlines deal was found by Cheapflights users on 1/10. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/149:00 pm
ICN
-
DEN
1 stop16h 30m
Asiana Airlines
Sat 3/218:51 pm
DEN
-
ICN
1 stop17h 14m
Asiana Airlines
Deal found 1/10$810

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl to Denver 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 12, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to Denver that are best for you.

Fly from

Incheon Intl

Fly to

Denver

Route

Depart

Return

Price

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 5/14

9:00 pm-9:51 pm

1 stop15h 51m

Denver Intl

Fri 6/5

7:15 pm-5:15 am

1 stop19h 00m

$762

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/1

7:35 pm-10:54 am

1 stop30h 19m

Denver Intl

Sat 5/9

11:50 am-5:30 pm

1 stop38h 40m

$803

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 4/9

8:35 pm-3:25 pm

1 stop33h 50m

Denver Intl

Wed 4/22

8:00 am-6:35 pm

1 stop19h 35m

$803

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 3/14

9:00 pm-8:21 am

1 stop26h 21m

Denver Intl

Fri 3/20

7:24 pm-4:20 am

1 stop17h 56m

$810

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 3/14

9:00 pm-10:30 pm

1 stop16h 30m

Denver Intl

Sat 3/21

8:51 pm-5:05 am

1 stop17h 14m

$810

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 4/9

8:35 pm-12:20 pm

2 stops30h 45m

Denver Intl

Tue 4/21

6:20 pm-6:35 pm

2 stops33h 15m

$820

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 2/9

6:55 pm-10:59 pm

2 stops20h 04m

Denver Intl

Mon 2/16

10:43 pm-4:20 pm

1 stop25h 37m

$827

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/8

8:35 pm-12:06 pm

2 stops30h 31m

Denver Intl

Fri 5/29

6:40 am-6:35 pm

2 stops20h 55m

$872

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 3/23

8:35 pm-5:24 pm

3 stops35h 49m

$486

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 3/16

5:55 pm-8:55 am

2 stops30h 00m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/10

Showing 1-10 of 16 results
1
2

Compare providers for flights from Incheon Intl to Denver

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 Incheon Intl to Denver in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 Incheon Intl Airport-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Incheon Intl Airport-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-Denver 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 Incheon Intl Airport-Denver 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 Incheon Intl to Denver

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

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

Use this chart to determine the optimal time to book a round-trip flight from Incheon Intl to Denver. Price data was last updated on January 9, 2026.

The best time to book flights from Incheon Intl Airport to Denver is 3 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Incheon Intl Airport to Denver?

Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Denver (average of $488). Flying from Incheon Intl Airport to Denver in February is currently the most expensive (average of $997). 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated January 12, 2026.
Read reviews from past customers who have flown Korean Air, Asiana Airlines, and Delta from Incheon Intl Airport to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,187 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,187 reviews
Korean Air
8.4
Very good
1,187 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.2
Very good
500 reviews
Korean Air
8.4
Very good
1,187 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
8,038 reviews
Korean Air
8.4
Very good
1,187 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,147 reviews
Korean Air
8.4
Very good
1,187 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,618 reviews
Korean Air
8.4
Very good
1,187 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Denver. 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 into for flights to Denver from Incheon Intl?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from Incheon Intl. Booking flights from Incheon Intl to Denver Intl (DEN) should be relatively easy as there are 0 daily inbound flights from Incheon Intl from 5 different airlines.

  • How long is the flight from Incheon Intl Airport to Denver?

    Alaska Airlines can get you from Incheon Intl Airport to Denver in just under 30h 19m. Your travel time can differ by up to . The distance between Incheon Intl Airport and Denver is about 6186 mi.

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

    Cheapflights users have booked flights from Incheon Intl Airport to Denver round-trip from $589. Other airlines that can offer you cheap pricing are Air Canada, from $601, and Delta, from $620. You may be able to fly from Incheon Intl Airport to Denver for 36% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Incheon Intl Airport to Denver are Air Canada ($356), Korean Air ($457), and United Airlines ($490).

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Denver (average of $488). Flying from Incheon Intl Airport to Denver in February is currently the most expensive (average of $997). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Broomfield
Westminster
Lakewood
Golden
Greeley
Lone Tree
Wheat Ridge
Cripple Creek
Winter Park
Silverthorne
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Alternative routes for Incheon Intl to Denver

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

Top 5 airlines flying from Incheon Intl to Denver

Discover the top 5 airlines that operate flights from Incheon Intl to Denver. 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 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$589Average$845FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$601Average$686FlexibilityNo cancel feeOn-time67%
DeltaCheapest$620Average$901FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$695Average$767FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$709Average$871FlexibilityNo cancel feeOn-time76%

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