DEN - ICN

$484 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 8/7. 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

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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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Cheap Flights from Denver to Incheon Intl (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 Intl 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

Mon, Aug 18 - Mon, Sep 1
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10:55 pm - 7:40 pmDEN-ICN
29h 45m2 stops
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6:20 pm - 10:30 amICN-DEN
31h 10m1 stop
Tue, Sep 9 - Tue, Sep 16
China Eastern Logo
6:45 am - 11:55 amDEN-ICN
38h 10m2 stops
China Eastern Logo
8:55 am - 6:22 pmICN-DEN
24h 27m2 stops
$851China Eastern
Find Deal
Fri, Sep 12 - Sun, Sep 28
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6:00 am - 8:30 pmDEN-ICN
23h 30m1 stop
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6:20 pm - 10:48 pmICN-DEN
19h 28m1 stop
Wed, Aug 20 - Tue, Sep 2
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10:55 pm - 7:40 pmDEN-ICN
29h 45m2 stops
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12:45 pm - 10:21 amICN-DEN
36h 36m1 stop
Sat, Nov 8 - Fri, Nov 21
Turkish Airlines Logo
7:20 pm - 6:20 pmDEN-ICN
31h 00m1 stop
Turkish Airlines Logo
12:10 am - 5:35 pmICN-DEN
33h 25m1 stop
$911Turkish Airlines
Find Deal
Sat, Sep 6 - Thu, Sep 18
Turkish Airlines Logo
7:50 pm - 5:40 pmDEN-ICN
30h 50m1 stop
Turkish Airlines Logo
11:20 pm - 5:55 pmICN-DEN
33h 35m1 stop
$921Turkish Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Air Canada Logo
11:25 am - 5:30 pmDEN-ICN
39h 05m1 stop
Air Canada Logo
6:00 pm - 6:18 pmICN-DEN
39h 18m1 stop
$946Air Canada
Find Deal
Tue, Aug 26 - Tue, Sep 30
Air Canada Logo
11:24 am - 4:05 pmDEN-ICN
37h 41m2 stops
Air Canada Logo
5:45 pm - 6:03 pmICN-DEN
39h 18m2 stops
$955Air Canada
Find Deal
Wed, Oct 1 - Mon, Nov 3
Delta Logo
4:49 pm - 4:00 amDEN-ICN
20h 11m1 stop
Delta Logo
5:50 pm - 8:15 pmICN-DEN
18h 25m1 stop
$976Delta
Find Deal
Sat, Sep 6 - Thu, Sep 18
Delta Logo
6:25 pm - 4:30 pmDEN-ICN
31h 05m2 stops
Delta Logo
7:20 pm - 9:18 amICN-DEN
28h 58m2 stops
$981Delta
Find Deal
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’s the cheapest day of the week to fly from Denver to Seoul Incheon Airport?

The average price of all round-trip flights from Denver to Incheon Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Seoul Incheon Airport on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Denver to Seoul Incheon Airport. For your return ticket, we recommend flying on a Sunday and avoiding Tuesdays for the best deals.

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 $975 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,079 and $1,842 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 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$484
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 11% 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 $484 for a one-way ticket and $775 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Denver and Seoul Incheon Airport, with Star Alliance 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 Asiana Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Incheon are Korean Air and Asiana Airlines. With an average price for the route of $1,444 and an overall rating of 8.4, Korean Air is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of $1,223 and an overall rating of 8.2.

  • 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.

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 1121 reviews
8.5Boarding
8.2Entertainment
8.2Comfort
8.7Crew
8.1Food
Airline reviews

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

10.0 ExcellentAnonymous, Jul 2025DFW - ICN
Read more Korean Air reviews

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

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

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.

Coming back to America was a peaceful flight everyone and everything was perfect

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.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

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 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Both flights are delayed so I rate the whole experience as mediocre.

I booked my flight months ago, and checked-in online about 12 hours before the flight. I received an email confirmation of check-in. I had no subsequent communication from Air Canada after my original booking. After arriving at the airport three hours before the flight, as instructed, I waited 90 minutes for an agent to appear to check my bag. I was informed that my flight had been canceled many weeks before, and that flight was no longer being run!! I showed a copy of my check-in confirmation, but no explanation could be found. I was placed on standby for the next flight and the connection. Luckily, those flights were not full and I arrived at my destination. I double checked my email, but I received no update about the flight from Air Canada until the day of the flight.

I had a good experience. I liked being informed about the status of my luggage

Very bad service the way back we was on the way for r two days very bad condition and waiting for luggage till now

I was forcefully re-routed to another destination and was delayed a total of 8hours. I have still not received my bags, no one is taking responsibility. The agents at the airport lied to me that I will get to my destination same time as my previous flight where I was forcefully re-routed from.

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

United had no (zero) record of our flight. It took over an hour of us standing in line with surly employee while others waited to get resolved. I have never experienced such poor service and poor empathy.

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

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