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$342+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
May 19 — May 261
Mon 5/19
Mon 5/26
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Denver Intl are usually found in November or March, booked 59 days in advance, depart on a Sunday or Thursday and return on a Wednesday

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 May 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$661
(Trip.com)

One-way from

$342
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,012
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. 18% potential increase in price ($270 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 May 14, 2025.

This United Airlines deal was found by Cheapflights users on 5/13. 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 5/164:50 pmICN - DEN
1 stop37h 09mUnited Airlines
Sun 5/1811:40 amDEN - ICN
1 stop32h 50mUnited Airlines
Deal found 5/13$610
This Trip.com deal was found by Cheapflights users on 5/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/48:40 pmICN - DEN
2 stops27h 20mMultiple Airlines
Mon 6/2312:04 amDEN - ICN
2 stops37h 16mMultiple Airlines
Deal found 5/12$661
This Gotogate deal was found by Cheapflights users on 5/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:45 pmICN - DEN
1 stop16h 38mAir Canada
Fri 9/267:05 pmDEN - ICN
1 stop30h 00mAir Canada
Deal found 5/13$749
This Delta deal was found by Cheapflights users on 5/13. 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.
Mon 6/237:20 pmICN - DEN
1 stop30h 40mDelta
Mon 7/217:10 amDEN - ICN
1 stop17h 10mDelta
Deal found 5/13$818
This KAYAK deal was found by Cheapflights users on 5/13. 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.
Thu 6/54:40 pmICN - DEN
1 stop16h 10mKorean Air
Sun 6/1512:59 amDEN - ICN
1 stop22h 11mKorean Air
Deal found 5/13$1,042
This American Airlines deal was found by Cheapflights users on 5/14. 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 7/255:25 pmICN - DEN
2 stops29h 57mAmerican Airlines
Thu 8/76:37 pmDEN - ICN
1 stop29h 53mAmerican Airlines
Deal found 5/14$1,133
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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.
Mon 7/219:25 pmICN - DEN
2 stops34h 29mAlaska Airlines
Thu 7/318:32 pmDEN - ICN
2 stops31h 28mAlaska Airlines
Deal found 5/13$1,368

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 May 14, 2025.
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

Wed 6/4

8:40 pm-9:00 am

2 stops27h 20m

Denver Intl

Mon 6/23

12:04 am-4:20 am

2 stops37h 16m

$661

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 9/8

5:45 pm-7:23 pm

1 stop16h 38m

Denver Intl

Fri 9/26

7:05 pm-4:05 pm

1 stop30h 00m

$749

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 6/23

7:20 pm-9:23 am

2 stops29h 03m

Denver Intl

Mon 7/21

7:40 pm-4:30 pm

1 stop29h 50m

$818

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Wed 7/2

4:50 pm-12:48 am

1 stop22h 58m

Denver Intl

Tue 7/8

4:00 pm-4:20 am

1 stop21h 20m

$910

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Thu 6/5

4:40 pm-5:50 pm

1 stop16h 10m

Denver Intl

Sun 6/15

12:59 am-2:10 pm

1 stop22h 11m

$1,042

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Fri 7/25

5:25 pm-8:22 am

2 stops29h 57m

Denver Intl

Thu 8/7

6:37 pm-3:30 pm

1 stop29h 53m

$1,133

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 7/21

9:25 pm-4:54 pm

2 stops34h 29m

Denver Intl

Thu 7/31

8:32 pm-7:00 pm

2 stops31h 28m

$1,368

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 6/2

6:20 pm-10:25 pm

1 stop19h 05m

$342

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 5/19

5:25 pm-8:16 pm

1 stop17h 51m

$566

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sun 6/1

4:50 pm-8:41 am

1 stop30h 51m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 18 results
1
2
  • 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 May 9, 2025.

The best time to book flights from Incheon Intl Airport to Denver is 58 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, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Denver (average of $197). Flying from Incheon Intl Airport to Denver in March is currently the most expensive (average of $278). 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 ICN to DEN?

Find hourly flight availability from Incheon Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2025.

It’s optimal to fly from Incheon Intl Airport to Denver in the afternoon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the evening.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 May 14, 2025.
Read reviews from past customers who have flown Korean Air, Singapore Airlines and Alaska Airlines from Seoul to Denver. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,072 reviews

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,072 reviews
Korean Air
8.4
Very good
1,072 reviews

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,294 reviews
Korean Air
8.4
Very good
1,072 reviews

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,072 reviews

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Delta
8.0
Very good
7,949 reviews
Korean Air
8.4
Very good
1,072 reviews

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Qatar Airways
7.4
Good
3,571 reviews
Korean Air
8.4
Very good
1,072 reviews

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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 6 different airlines.

  • 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 $749. Other airlines that can offer you cheap pricing are Delta, from $818, and United Airlines, from $910. You may be able to fly from Incheon Intl Airport to Denver for 35% 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 American Airlines ($566), United Airlines ($619), and WestJet ($728).

  • 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, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Denver (average of $197). Flying from Incheon Intl Airport to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Silverthorne
Brighton
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Limon
Greeley

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Alternative routes for Incheon Intl to Denver

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Incheon Intl to Colorado Springs flights

Top 6 airlines flying from Incheon Intl to Denver

Discover the top 6 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 May 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$685Average$1,077FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$696Average$897FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$735Average$980FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$910Average$1,122FlexibilityNo cancel feeOn-time81%
DeltaCheapest$918Average$1,035FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$1,014Average$1,173FlexibilityNo cancel feeOn-time76%

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