DEN - ICN

$374 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 8/30. 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
$836
Typical prices: $1,448-$1,063
Multiple Airlines
Sun 8/9Mon 8/24
DEN - ICN • 1 stop
Cheapest one-way
$374
Typical prices: $609-$657
WestJet
Sun 8/30
DEN - ICN • 1 stop
Top airlines
Cheapest • from $847 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Denver and Incheon. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $934 (round-trip)
Shortest trip • 16h 32m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sun, Aug 9 - Mon, Aug 24
Multiple Airlines Logo
10:39 pm - 3:50 pm
DEN
-
ICN
26h 11m
1 stop
Multiple Airlines Logo
1:00 pm - 12:40 am
ICN
-
DEN
26h 40m
1 stop
$836Multiple Airlines
Sun, Aug 30 - Sun, Sep 13
WestJet Logo
12:15 pm - 6:45 pm
DEN
-
ICN
15h 30m
1 stop
WestJet Logo
8:45 pm - 11:20 am
ICN
-
DEN
29h 35m
1 stop
$847WestJet
Mon, Aug 10 - Sun, Aug 23
Multiple Airlines Logo
7:00 am - 4:30 am
DEN
-
ICN
30h 30m
1 stop
Multiple Airlines Logo
1:00 pm - 12:46 am
ICN
-
DEN
26h 46m
1 stop
$889Multiple Airlines
Tue, Nov 3 - Fri, Nov 13
Multiple Airlines Logo
10:29 pm - 4:20 pm
DEN
-
ICN
25h 51m
1 stop
Multiple Airlines Logo
1:20 pm - 2:37 pm
ICN
-
DEN
17h 17m
1 stop
$915Multiple Airlines
Sun, Aug 9 - Mon, Aug 24
Multiple Airlines Logo
10:39 pm - 3:50 pm
DEN
-
ICN
26h 11m
1 stop
Multiple Airlines Logo
1:00 pm - 3:58 am
ICN
-
DEN
29h 58m
2 stops
$931Multiple Airlines
Thu, Sep 17 - Thu, Oct 1
WestJet Logo
12:15 pm - 6:45 pm
DEN
-
ICN
15h 30m
1 stop
WestJet Logo
8:45 pm - 11:20 am
ICN
-
DEN
29h 35m
1 stop
$957WestJet
Fri, Sep 11 - Tue, Oct 6
Multiple Airlines Logo
12:02 pm - 4:30 am
DEN
-
ICN
25h 28m
1 stop
Multiple Airlines Logo
1:00 pm - 6:12 pm
ICN
-
DEN
20h 12m
1 stop
$969Multiple Airlines
Sun, Oct 11 - Wed, Oct 21
Multiple Airlines Logo
9:47 am - 9:40 pm
DEN
-
ICN
20h 53m
1 stop
Multiple Airlines Logo
7:15 pm - 10:59 pm
ICN
-
DEN
18h 44m
1 stop
$971Multiple Airlines
Fri, Sep 25 - Tue, Sep 29
Multiple Airlines Logo
9:47 am - 9:40 pm
DEN
-
ICN
20h 53m
1 stop
Multiple Airlines Logo
3:05 pm - 11:53 pm
ICN
-
DEN
47h 48m
2 stops
$976Multiple Airlines
Sun, Nov 1 - Wed, Nov 11
China Eastern Logo
6:30 am - 11:55 am
DEN
-
ICN
37h 25m
2 stops
China Eastern Logo
8:55 am - 6:10 pm
ICN
-
DEN
25h 15m
2 stops
$977China Eastern
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.

How much is a round-trip flight from Denver to Incheon Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Incheon Intl Airport departing in August.

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 $991 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,678 and $1,563 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 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$374
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly with an average 18% 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 5 days, the lowest price for a flight from Denver to Incheon Intl Airport was $374 for a one-way ticket and $836 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 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 $1,094 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 $1,334 and an overall rating of 8.1.

  • 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 1218 reviews
8.3Comfort
8.7Crew
8.1Food
8.5Boarding
8.2Entertainment
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

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.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak along with airfare assay are attempting to steal my money. Charges are being pressed.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

I’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

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.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

This planes staff was top tier. Everything went great and had a great flight home.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

1didnt have wheel chair I ordered wheel chair in my ticket flight

Flight was overbooked and seats assigned to multiple passengers. Delay 1 hour to sort out.

Good but I don’t received my bags yet is been 5days still no update

It was pretty straight forward, no glitches or hidden costs

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

Didn’t make it on the flight. Delayed then had to be rebooked, which in turn had me waiting at the airport for another 8 hours before next flight

No TV on the flight. The charging outlet was not working. No food, even a sandwich. The served orange was poor quality.

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

The flight was comfortable and the staff were helpful and friendly. However, we did not know we were flying PAL until we arrived in Canada, so it was a bit disconcerting. In addition, which port we were leaving from was confusing.

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

Information on your arrival and departure airports