DEN - ICN

$380 Find Cheap Flights from Denver to Seoul Incheon Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Incheon departing on 3/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Incheon Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Incheon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Incheon.
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Everything you should know

Cheapest round-trip
$856
Overall average: $1,173
Multiple Airlines
Fri 4/24Mon 4/27
DEN - ICN • 1 stop
Cheapest one-way
$380
Typical prices: $647-$746
Multiple Airlines
Wed 3/18
DEN - ICN • 1 stop
Top airlines
Turkish Airlines
Cheapest • from $936 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 19% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Incheon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Incheon (DEN-ICN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Incheon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Incheon

Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
7:00 am - 5:20 am
DEN
-
ICN
31h 20m
1 stop
Multiple Airlines Logo
6:20 pm - 9:42 am
ICN
-
DEN
30h 22m
1 stop
$856Multiple Airlines
Sun, Mar 1 - Mon, Mar 30
Multiple Airlines Logo
10:29 pm - 7:25 pm
DEN
-
ICN
52h 56m
2 stops
Multiple Airlines Logo
6:20 pm - 9:47 am
ICN
-
DEN
30h 27m
1 stop
$869Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
10:29 pm - 3:45 pm
DEN
-
ICN
26h 16m
1 stop
Multiple Airlines Logo
6:20 pm - 3:59 am
ICN
-
DEN
24h 39m
2 stops
$881Multiple Airlines
Wed, Feb 18 - Wed, Mar 11
Multiple Airlines Logo
12:48 pm - 6:35 pm
DEN
-
ICN
37h 47m
2 stops
Multiple Airlines Logo
6:55 pm - 12:37 am
ICN
-
DEN
20h 42m
1 stop
$883Multiple Airlines
Wed, Feb 18 - Wed, Mar 4
Multiple Airlines Logo
10:29 pm - 12:45 pm
DEN
-
ICN
46h 16m
2 stops
Multiple Airlines Logo
6:55 pm - 10:02 am
ICN
-
DEN
31h 07m
1 stop
$885Multiple Airlines
Sun, Mar 1 - Wed, Mar 11
Multiple Airlines Logo
10:29 pm - 7:25 pm
DEN
-
ICN
52h 56m
2 stops
Multiple Airlines Logo
6:55 pm - 12:37 am
ICN
-
DEN
20h 42m
1 stop
$892Multiple Airlines
Thu, Apr 23 - Mon, May 4
Multiple Airlines Logo
7:00 am - 9:35 pm
DEN
-
ICN
23h 35m
2 stops
Multiple Airlines Logo
6:20 pm - 9:42 am
ICN
-
DEN
30h 22m
1 stop
$894Multiple Airlines
Sun, Mar 8 - Wed, Mar 11
Multiple Airlines Logo
9:10 am - 6:35 pm
DEN
-
ICN
18h 25m
1 stop
Multiple Airlines Logo
6:55 pm - 12:37 am
ICN
-
DEN
20h 42m
1 stop
$900Multiple Airlines
Thu, Feb 26 - Sun, Mar 8
Multiple Airlines Logo
7:52 pm - 6:35 pm
DEN
-
ICN
30h 43m
1 stop
Multiple Airlines Logo
9:20 pm - 3:56 am
ICN
-
DEN
45h 36m
2 stops
$902Multiple Airlines
Sun, Apr 12 - Mon, Apr 20
Multiple Airlines Logo
9:20 am - 12:30 pm
DEN
-
ICN
36h 10m
2 stops
Multiple Airlines Logo
6:20 pm - 9:42 am
ICN
-
DEN
30h 22m
1 stop
$903Multiple Airlines
Booking Insights

KAYAK's insights & trends for Denver to Incheon flights

Get data-powered insights and trends into flights from Denver to Incheon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Denver to Incheon Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Incheon Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Incheon Intl Airport is February, where tickets cost $1,010 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,863 and $1,544 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Incheon Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Incheon Intl Airport, you should book around 2 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$380
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Denver to Seoul Incheon Airport

When to book flights from Denver to Incheon

Are your dates flexible? Find out the best times to travel from Denver to Incheon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Seoul Incheon Airport flights

  • Is a flight on Delta from Denver to Incheon convenient for those with vision, hearing, or speech impairments?

    From when a passenger books their trip with Delta, the airline provides support to those with visual, hearing, or other sensory impairments. If you need help speaking, checking in, getting off the plane, connecting to another plane, or boarding, their crew will help you. You are not charged more to travel with your service dog.

  • Can China Airlines passengers travel with pets from Denver (DEN) to Incheon (ICN)?

    Passengers traveling from Denver to Incheon on China Airlines can bring their pets. Each flight allows a maximum of 8 cages for check-in, and each passenger occupying a seat (including children and infants with a seat) can check in a maximum of 2 cages. With China Airlines, pets are placed in suitable enclosures and carried in the cargo hold as checked luggage.

  • Where can I spend the night at Denver International Airport (DEN) for my early morning flight to Incheon (ICN)?

    Denver International Airport (DEN) offers convenient on-site hotel options for travelers with early morning flights to Incheon. The airport features two on-site hotels, providing easy access to the terminals. The Westin Denver International Airport and the Denver Airport Marriott at Gateway Park offer comfortable accommodations, ensuring a restful night's sleep before your journey.

  • How does Asiana Airlines aim to protect the environment on its flights from Denver (DEN) to Incheon (ICN)?

    Asiana was the first airline to receive ISO 14001 (environmental management system) accreditation in 1995. It has implemented energy-saving initiatives for its aircraft, including aircraft engine washing, improved flight plans, shorter travel routes, lower flight altitudes, and weight management. Aircraft engine cleaning enhanced Asiana's airplane's fuel efficiency and resulted in a 3 million ton reduction in CO2 in 2008.

  • What is the cheapest flight from Denver to Incheon Intl Airport?

    In the last 3 days, the lowest price for a flight from Denver to Incheon Intl Airport was $407 for a one-way ticket and $856 for a round-trip.

  • Do I need a passport to fly between Denver and Seoul Incheon Airport?

    A passport is required to fly from Denver to Seoul Incheon Airport.

  • Which airports will I be using when flying from Denver to Seoul Incheon Airport?

    When flying out of Denver you will be using Denver Intl. You will be landing at Seoul Incheon Airport, also known as Incheon Intl.

  • Which aircraft models fly most regularly from Denver to Seoul Incheon Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Seoul Incheon Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Denver and Seoul Incheon Airport, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Seoul Incheon Airport from Denver?

    Vancouver is the most popular layover city among KAYAK users traveling from Denver to Seoul Incheon Airport.

  • Which is the best airline for flights from Denver to Incheon, Korean Air or AIR PREMIA?

    The two airlines most popular with KAYAK users for flights from Denver to Incheon are Korean Air and AIR PREMIA. With an average price for the route of $1,612 and an overall rating of 8.4, Korean Air is the most popular choice. AIR PREMIA is also a great choice for the route, with an average price of $615 and an overall rating of 8.3.

  • How does KAYAK find such low prices on flights from Denver to Seoul Incheon Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Seoul Incheon Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Seoul Incheon Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul Incheon Airport from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Seoul Incheon Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seoul Incheon Airport with an airline and back to Denver with another airline. Booking your flights between Denver and ICN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Seoul Incheon Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seoul Incheon Airport from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Denver to Seoul Incheon Airport?

    In the past 3 days, the cheapest round-trip tickets from Denver to Seoul Incheon Airport were found on Turkish Airlines ($936) and China Eastern ($941).

KAYAK’s top tips for finding a cheap flight from Denver to Incheon Intl Airport

  • Apart from being the departure airport for Denver to Incheon (ICN) flights, Denver International Airport (DEN) serves as a central hub for United Airlines, Frontier Airlines, and Southwest Airlines, with Southwest Airlines having the largest operational base at the facility. The airport also serves airlines like China Airlines, American Airlines, and Air Canada, which operate flights from Denver to Incheon.
  • If your child is traveling alone from Denver to Incheon and is between the ages of 5 to 14, it is advisable to choose American Airlines for their travel. American Airlines offers a range of specialized services specifically designed for unaccompanied children. These services include priority boarding, exclusive kids-only lounges at major airports, complimentary Kids' Kits with snacks and activities, as well as airport escorts to facilitate smooth flight connections, and ensure a safe handover to authorized adults upon arrival.
  • Consider enhancing your travel experience and minimizing the stress of long journeys by upgrading to high-class cabins like First Class and Business Class. You will enjoy extra legroom, personalized service, curated dining options, and enhanced comfort throughout your trip by upgrading your seat on any Denver to Incheon airline like Delta and American Airlines.
  • After landing at Incheon International Airport (ICN), passengers from Denver have several transport options to reach downtown Seoul. The Airport Railroad Express (AREX) is an easy, affordable, and convenient way to travel from Incheon Airport to downtown Seoul. The journey takes approximately 45 minutes when you jump on board the express train, and it takes you directly to Seoul Station - the main train station in the heart of Seoul.
  • Passengers traveling from Denver (DEN) to Incheon (ICN) with Air Canada have different baggage weight limits according to the class ticket they fly with. Checked luggage must comply with weight limits of 50 lbs for economy class or 70 pounds for business class and maximum linear dimensions of 62 linear inches. Premium Rogue, Premium economy, and business class passengers are entitled to 2 bags as part of their baggage allowance.

Reviews of the top 5 airlines serving from Denver to Incheon

 
See real verified KAYAK customer reviews for airlines flying from Denver to Incheon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Incheon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1188 reviews
8.3Comfort
8.7Crew
8.2Entertainment
8.1Food
8.5Boarding
Airline reviews

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

10.0 ExcellentOmer, Nov 2025
MNL - ICN
Read more Korean Air reviews

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

Love flying Asiana. Been using it for over a decade now.

I had a bad experience coming from America to Thailand. On my connecting flight my check in suitcase was not put on the departing aircraft, I received my suitcase 24 hours after arriving in Bangkok and when I open my luggage my hand swelled up. The next morning when I put on an outfit from my suitcase my face swelled up and became numb. My entire vacation was ruined it seems that some kind of chemical was sprayed into suitcase and ruined my clothes and got me sick. The staff at my hotel called the airline and spoke to someone and they told me to file a complaint and gave my a website to do so. I did not file a complaint I felt like it would have fell on death ears. I had to throw away my brand new vacation clothes and suitcase and I had the worst vacation ever due to this happening to me.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Flight cancellations, delays, mass confusion and disorganization! That’s Air Canada for you, nothing new. I would have chosen a different airline if it were an option, and Air Canada continues to prove they don’t care about their customers.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Our biggest complaint about Air Canada is that if you don’t like your seat during check-in, there’s a fee to move elsewhere. On our flight from YUL to FFL, we were charged to change seats—just regular seats. What’s maddening is that the plane wasn’t even full; there were even a few people sleeping in the middle row sections (entire rows, completely empty), using them as beds. In my opinion, charging passengers for seat changes is a cash grab by Air Canada. They are definitely not the airline they were back in the day. I suppose they need to gouge the consumer now that they pay their attendants while on ground. One out of 10.

Everything you need to know for your flight from Denver to Incheon

Information on your arrival and departure airports