HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$365+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — DEN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Incheon Intl to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$720
(United Airlines)

One-way from

$365
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$983
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. 18% potential increase in price ($264 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 29, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 5/54:50 pmICN - DEN
2 stops34h 26mUnited Airlines
Wed 5/75:20 amDEN - ICN
1 stop18h 40mUnited Airlines
Deal found 4/29$703
This Trip.com deal was found by Cheapflights users on 4/29. 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.
Mon 5/52:40 pmICN - DEN
2 stops28h 20mMultiple Airlines
Thu 5/88:15 amDEN - ICN
1 stop29h 05mMultiple Airlines
Deal found 4/29$712
This Delta deal was found by Cheapflights users on 4/29. 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 5/57:20 pmICN - DEN
2 stops18h 06mDelta
Wed 5/75:30 amDEN - ICN
2 stops20h 50mDelta
Deal found 4/29$740
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:45 pmICN - DEN
1 stop18h 38mAir Canada
Fri 9/127:52 amDEN - ICN
1 stop17h 13mAir Canada
Deal found 4/29$798
This Korean Air deal was found by Cheapflights users on 4/29. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/104:40 pmICN - DEN
1 stop16h 17mKorean Air
Wed 5/147:45 amDEN - ICN
1 stop17h 45mKorean Air
Deal found 4/29$861
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Mon 7/148:45 pmICN - DEN
1 stop29h 42mWestJet
Thu 7/317:40 pmDEN - ICN
1 stop32h 05mWestJet
Deal found 4/29$1,077
This American Airlines deal was found by Cheapflights users on 4/29. 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 8/25:25 pmICN - DEN
2 stops29h 57mAmerican Airlines
Fri 8/1511:59 pmDEN - ICN
2 stops24h 31mAmerican Airlines
Deal found 4/29$1,097
This Singapore Airlines deal was found by Cheapflights users on 4/29. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2411:50 pmICN - DEN
3 stops34h 50mSingapore Airlines
Tue 9/305:55 pmDEN - ICN
2 stops37h 25mSingapore Airlines
Deal found 4/29$1,475
This Gotogate deal was found by Cheapflights users on 4/29. 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.
Sat 12/2012:10 amICN - DEN
1 stop33h 30mTurkish Airlines
Sun 1/47:35 pmDEN - ICN
1 stop30h 45mTurkish Airlines
Deal found 4/29$1,530
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/261:35 amICN - DEN
2 stops34h 55mEtihad Airways
Tue 6/311:59 pmDEN - ICN
2 stops55h 06mEtihad Airways
Deal found 4/29$1,641
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/110:25 pmICN - DEN
2 stops34h 48mKLM
Fri 9/56:30 pmDEN - ICN
2 stops30h 55mKLM
Deal found 4/29$1,658
This Qatar Airways deal was found by Cheapflights users on 4/28. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/201:20 amICN - DEN
2 stops35h 53mQatar Airways
Fri 10/311:11 pmDEN - ICN
2 stops37h 04mQatar Airways
Deal found 4/28$1,662

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 April 29, 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

Mon 9/15

4:50 pm-4:35 pm

1 stop14h 45m

Denver Intl

Fri 9/19

10:09 am-4:20 am

1 stop27h 11m

$720

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Tue 5/27

4:40 pm-4:49 pm

1 stop15h 09m

Denver Intl

Tue 6/3

8:00 am-4:40 pm

1 stop17h 40m

$742

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 9/8

5:45 pm-9:23 pm

1 stop18h 38m

Denver Intl

Fri 9/12

7:52 am-4:05 pm

1 stop17h 13m

$798

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 6/2

7:20 pm-9:47 pm

1 stop17h 27m

Denver Intl

Thu 6/5

7:05 am-4:40 pm

2 stops18h 35m

$809

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 5/10

4:40 pm-5:57 pm

1 stop16h 17m

Denver Intl

Wed 5/14

7:45 am-4:30 pm

1 stop17h 45m

$861

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 7/14

8:45 pm-11:27 am

1 stop29h 42m

Denver Intl

Thu 7/31

7:40 pm-6:45 pm

1 stop32h 05m

$1,077

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Sat 8/2

5:25 pm-8:22 am

2 stops29h 57m

Denver Intl

Fri 8/15

11:59 pm-3:30 pm

2 stops24h 31m

$1,097

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Wed 9/24

11:50 pm-7:40 pm

3 stops34h 50m

Denver Intl

Tue 9/30

5:55 pm-10:20 pm

2 stops37h 25m

$1,475

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 5/26

1:35 am-9:30 pm

2 stops34h 55m

Denver Intl

Tue 6/3

11:59 pm-10:05 pm

2 stops55h 06m

$1,641

IncheonDenver

ICN - DEN

ICNDEN

Incheon Intl

Mon 9/1

10:25 pm-6:13 pm

2 stops34h 48m

Denver Intl

Fri 9/5

6:30 pm-4:25 pm

2 stops30h 55m

$1,658

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 23 results
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 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 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 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 April 25, 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 April 29, 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 April 29, 2025.
Read reviews from past customers who have flown Korean Air, Singapore Airlines and Delta 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
1,066 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

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
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

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
1,292 reviews
Korean Air
8.4
Very good
1,066 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

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
7,929 reviews
Korean Air
8.4
Very good
1,066 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

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
3,563 reviews
Korean Air
8.4
Very good
1,066 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

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.
United Airlines
7.4
Good
8,696 reviews
Korean Air
8.4
Very good
1,066 reviews

Food

8.1

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

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 $720. Other airlines that can offer you cheap pricing are Air Canada, from $798, and Delta, from $809. You may be able to fly from Incheon Intl Airport to Denver for 39% 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 WestJet ($506), American Airlines ($526), and Delta ($576).

  • 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
Silverthorne
Brighton
Golden
Thornton
Greeley
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Limon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$685Average$1,077FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$696Average$897FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$735Average$963FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$910Average$1,122FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,006Average$1,035FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$1,014Average$1,173FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.