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Incheon Intl

$424+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ICN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Incheon Intl are usually found in August or February, booked 61 days in advance, depart on a Wednesday or Sunday and return on a Sunday

Cheap 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 August 14, 2025.

Round-trip from

$786
(Trip.com)

One-way from

$424
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$967
From Denver Intl to Incheon Intl
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One-way flight from Denver Intl to Incheon Intl
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Highest demand for flights based on searches. 8% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($76 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:05 amDEN - ICN
1 stop21h 25mMultiple Airlines
Mon 9/156:20 pmICN - DEN
1 stop19h 28mMultiple Airlines
Deal found 8/13$786
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:55 pmDEN - ICN
2 stops29h 45mMultiple Airlines
Sun 10/126:20 pmICN - DEN
1 stop20h 42mMultiple Airlines
Deal found 8/14$840
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:41 pmDEN - ICN
1 stop32h 49mMultiple Airlines
Mon 10/276:55 pmICN - DEN
1 stop30h 23mMultiple Airlines
Deal found 8/13$853
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:05 amDEN - ICN
1 stop20h 15mDelta
Sat 9/277:40 pmICN - DEN
1 stop14h 38mDelta
Deal found 8/14$856
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:30 amDEN - ICN
1 stop18h 00mMultiple Airlines
Mon 10/136:20 pmICN - DEN
1 stop15h 48mMultiple Airlines
Deal found 8/14$857
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:41 pmDEN - ICN
1 stop32h 49mMultiple Airlines
Fri 10/316:55 pmICN - DEN
1 stop30h 23mMultiple Airlines
Deal found 8/13$858
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:34 pmDEN - ICN
1 stop19h 16mMultiple Airlines
Mon 9/296:20 pmICN - DEN
1 stop31h 27mMultiple Airlines
Deal found 8/14$859
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:45 amDEN - ICN
2 stops19h 45mDelta
Sat 9/207:20 pmICN - DEN
2 stops28h 58mDelta
Deal found 8/14$861
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:41 pmDEN - ICN
1 stop32h 49mMultiple Airlines
Sun 10/266:55 pmICN - DEN
1 stop30h 23mMultiple Airlines
Deal found 8/13$864
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:30 amDEN - ICN
1 stop23h 00mMultiple Airlines
Mon 10/276:55 pmICN - DEN
1 stop30h 23mMultiple Airlines
Deal found 8/13$865
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:30 amDEN - ICN
1 stop23h 00mMultiple Airlines
Mon 10/136:20 pmICN - DEN
1 stop15h 48mMultiple Airlines
Deal found 8/14$866
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2911:30 amDEN - ICN
1 stop18h 00mMultiple Airlines
Sun 10/196:20 pmICN - DEN
1 stop20h 42mMultiple Airlines
Deal found 8/14$867

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 August 14, 2025.
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

Tue 9/30

10:55 pm-7:40 pm

2 stops29h 45m

Incheon Intl

Sun 10/12

6:20 pm-12:02 am

1 stop20h 42m

$840

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/13

8:41 pm-8:30 pm

1 stop32h 49m

Incheon Intl

Mon 10/27

6:55 pm-10:18 am

1 stop30h 23m

$853

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/13

6:05 am-5:20 pm

1 stop20h 15m

Incheon Intl

Sat 9/27

7:40 pm-7:18 pm

1 stop14h 38m

$856

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sun 9/14

12:59 am-2:10 pm

1 stop22h 11m

Incheon Intl

Tue 9/30

7:20 pm-9:42 pm

1 stop17h 22m

$856

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/13

5:45 am-3:20 pm

1 stop18h 35m

Incheon Intl

Sat 9/20

7:20 pm-6:56 pm

1 stop14h 36m

$856

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 9/11

7:10 am-3:20 pm

1 stop17h 10m

Incheon Intl

Thu 9/18

7:20 pm-9:42 pm

1 stop17h 22m

$856

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/6

6:15 am-5:20 pm

1 stop20h 05m

Incheon Intl

Thu 9/18

6:40 pm-11:08 pm

1 stop19h 28m

$856

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Sat 9/13

8:41 pm-8:30 pm

1 stop32h 49m

Incheon Intl

Fri 10/31

6:55 pm-10:18 am

1 stop30h 23m

$858

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 9/12

6:34 pm-4:50 am

1 stop19h 16m

Incheon Intl

Mon 9/29

6:20 pm-10:47 am

1 stop31h 27m

$859

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Thu 10/16

6:00 am-6:45 pm

3 stops45h 45m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 17 results
1
2

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 August 8, 2025.

Booking 8 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 $994). Flying from Denver to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 DEN to ICN?

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

A simple way to save on the total cost of your ticket is to fly from Denver to Incheon Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the morning.

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 August 14, 2025.
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
1,131 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
8.2
Very good
473 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
8.0
Very good
7,980 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
8,916 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
9,949 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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 AIR PREMIA, with the lowest prices starting at $237 and $585, respectively. Frontier is 95% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $994). Flying from Denver to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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
Daejeon

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$129FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$237Average$1,268FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$585Average$615FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$748Average$1,213FlexibilityNo cancel feeOn-time60%
Turkish AirlinesCheapest$755Average$895FlexibilityNo cancel feeOn-time77%
Asiana AirlinesCheapest$757Average$1,215FlexibilityNo cancel feeOn-time76%
DeltaCheapest$810Average$1,152FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$843Average$1,382FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$854Average$1,200FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$1,077FlexibilityNo cancel feeOn-time71%

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