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$382+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 26, 2026.

This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:15 pm
ICN
-
DEN
2 stops32h 16m
American Airlines
Mon 3/211:59 pm
DEN
-
ICN
2 stops24h 46m
American Airlines
Deal found 1/24$580
This Hanatour deal was found by Cheapflights users on 1/24. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:45 pm
ICN
-
DEN
1 stop20h 25m
Air Canada
Thu 6/257:50 pm
DEN
-
ICN
1 stop29h 15m
Air Canada
Deal found 1/24$604
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:40 pm
ICN
-
DEN
2 stops34h 37m
American Airlines
Sat 5/92:13 pm
DEN
-
ICN
2 stops34h 32m
American Airlines
Deal found 1/25$615
This SmartFares deal was found by Cheapflights users on 1/25. 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.
Fri 2/68:35 pm
ICN
-
DEN
1 stop19h 00m
Multiple Airlines
Wed 2/187:00 am
DEN
-
ICN
1 stop19h 35m
Multiple Airlines
Deal found 1/25$620
This WhyPayMore deal was found by Cheapflights users on 1/25. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/68:35 pm
ICN
-
DEN
1 stop19h 00m
Hawaiian Airlines
Wed 2/187:00 am
DEN
-
ICN
1 stop19h 35m
Hawaiian Airlines
Deal found 1/25$628
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:40 pm
ICN
-
DEN
1 stop35h 22m
Delta
Tue 3/106:20 am
DEN
-
ICN
1 stop18h 10m
Delta
Deal found 1/26$645
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Thu 4/235:45 pm
ICN
-
DEN
2 stops39h 22m
Air Canada
Thu 5/1411:20 am
DEN
-
ICN
2 stops37h 45m
Air Canada
Deal found 1/26$656
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/145:55 pm
ICN
-
DEN
2 stops42h 41m
American Airlines
Fri 3/2012:26 pm
DEN
-
ICN
2 stops36h 29m
American Airlines
Deal found 1/25$659
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Thu 4/239:20 pm
ICN
-
DEN
1 stop16h 10m
Asiana Airlines
Thu 5/147:05 pm
DEN
-
ICN
1 stop18h 55m
Asiana Airlines
Deal found 1/26$661
This United Airlines deal was found by Cheapflights users on 1/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 pm
ICN
-
DEN
1 stop32h 27m
United Airlines
Mon 3/27:43 pm
DEN
-
ICN
1 stop28h 32m
United Airlines
Deal found 1/25$674

Find 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 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$580
(American Airlines)

One-way from

$382
(Trip.com)

Popular in

January

Cheapest in

December

Average price

$1,431
Provider with most accurate pricing for Incheon Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Incheon Intl-Denver Intl flights.
Search Deals
From Incheon Intl to Denver Intl
Search Deals
One-way flight from Incheon Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($143 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 26, 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

Fri 2/27

7:15 pm-11:31 am

2 stops32h 16m

Denver Intl

Mon 3/2

12:33 pm-4:45 pm

1 stop36h 12m

$580

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 5/26

5:45 pm-11:10 pm

1 stop20h 25m

Denver Intl

Thu 6/25

7:50 pm-4:05 pm

1 stop29h 15m

$604

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/1

5:40 pm-1:17 pm

2 stops34h 37m

Denver Intl

Sat 5/9

2:13 pm-3:45 pm

2 stops34h 32m

$615

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 2/24

7:40 pm-3:02 pm

1 stop35h 22m

Denver Intl

Tue 3/10

6:20 am-3:30 pm

1 stop18h 10m

$645

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 3/14

5:55 pm-9:36 pm

2 stops42h 41m

Denver Intl

Fri 3/20

12:26 pm-3:55 pm

2 stops36h 29m

$659

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 2/24

6:00 pm-10:09 pm

2 stops20h 09m

Denver Intl

Tue 3/10

9:06 pm-3:15 pm

2 stops27h 09m

$674

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 2/27

6:00 pm-8:04 pm

1 stop18h 04m

Denver Intl

Mon 3/2

7:45 am-4:15 pm

1 stop16h 30m

$674

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 5/23

5:45 pm-6:04 pm

2 stops39h 19m

Denver Intl

Thu 5/28

11:21 am-4:05 pm

2 stops37h 44m

$690

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 5/1

5:45 pm-8:36 am

2 stops29h 51m

Denver Intl

Sat 5/9

7:16 pm-4:05 pm

2 stops29h 49m

$733

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 2/24

1:20 pm-6:00 pm

1 stop20h 40m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 15 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*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 Incheon Intl Airport-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-Denver flight deals on Cheapflights vs. FlightHub >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 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 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 23, 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.

How much does it cost to fly round-trip from Incheon Intl Airport to Denver?

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 26, 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
1,188 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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
8.1
Very good
501 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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
8,113 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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
9,198 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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
10,656 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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?

    American Airlines, Air Canada, and Delta can get you from Incheon Intl Airport to Denver in just under 20h 25m. Your travel time can differ by up to 14h 57m. The distance between Incheon Intl Airport and Denver is about 6186 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Cripple Creek
Winter Park
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Brighton
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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 26, 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$769FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$709Average$809FlexibilityNo cancel feeOn-time76%

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