$472 Find Cheap Flights from Seoul to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to Colorado departing on 10/14. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Colorado.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Colorado.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Seoul to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seoul to Colorado 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 Seoul to Colorado

Mon, Feb 2 - Wed, Feb 4
Hawaiian Airlines Logo
8:35 pm - 12:38 pmICN-DEN
32h 03m1 stop
Hawaiian Airlines Logo
5:09 pm - 6:35 pmDEN-ICN
33h 26m1 stop
$608Hawaiian Airlines
Find Deal
Mon, Feb 2 - Wed, Feb 4
Hawaiian Airlines Logo
8:35 pm - 12:38 pmICN-DEN
32h 03m1 stop
Hawaiian Airlines Logo
7:00 am - 6:35 pmDEN-ICN
19h 35m1 stop
$612Hawaiian Airlines
Find Deal
Tue, Nov 25 - Sun, Dec 7
American Airlines Logo
7:15 pm - 10:29 pmICN-DEN
19h 14m2 stops
American Airlines Logo
10:58 am - 4:45 pmDEN-ICN
37h 47m2 stops
$621American Airlines
Find Deal
Fri, Nov 7 - Mon, Dec 1
Delta Logo
7:40 pm - 7:01 pmICN-DEN
15h 21m1 stop
Delta Logo
7:51 pm - 4:30 pmDEN-ICN
28h 39m1 stop
$623Delta
Find Deal
Tue, Nov 25 - Sun, Dec 7
American Airlines Logo
7:15 pm - 5:52 pmICN-DEN
38h 37m1 stop
American Airlines Logo
9:00 am - 4:45 pmDEN-ICN
39h 45m1 stop
$625American Airlines
Find Deal
Thu, Dec 25 - Mon, Jan 5
Delta Logo
8:05 pm - 3:13 pmICN-DEN
35h 08m2 stops
Delta Logo
12:20 pm - 4:30 pmDEN-ICN
36h 10m1 stop
$628Delta
Find Deal
Fri, Nov 21 - Fri, Nov 28
United Airlines Logo
6:00 pm - 12:30 amICN-DEN
22h 30m1 stop
United Airlines Logo
6:00 am - 4:15 pmDEN-ICN
18h 15m1 stop
$654United Airlines
Find Deal
Tue, Oct 21 - Fri, Oct 24
United Airlines Logo
11:30 am - 9:18 pmICN-DEN
24h 48m2 stops
United Airlines Logo
9:10 pm - 3:10 pmDEN-ICN
27h 00m1 stop
$707United Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 30
Korean Air Logo
8:05 pm - 6:56 pmICN-DEN
14h 51m1 stop
Korean Air Logo
12:50 am - 3:50 pmDEN-ICN
23h 00m1 stop
$834Korean Air
Find Deal
Sat, Nov 22 - Fri, Nov 28
Korean Air Logo
4:10 pm - 6:55 pmICN-DEN
18h 45m1 stop
Korean Air Logo
12:50 am - 3:50 pmDEN-ICN
23h 00m1 stop
$1,267Korean Air
Find Deal
Booking Insights

KAYAK's insights & trends for Seoul to Colorado flights

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

What is the cheapest month to fly from Seoul to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to Colorado, 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 Seoul to Colorado is November, when tickets cost $734 (return) on average. On the other hand, the most expensive months are October and April, when the average cost of round-trip tickets is $1,232 and $1,230 respectively.

What’s the cheapest day of the week to fly from Seoul to Colorado?

The average price of all round-trip flights from Seoul to Colorado clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seoul to Colorado, look for departures on Sundays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Colorado, Wednesday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from Seoul to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seoul to Colorado, 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 Seoul to Colorado, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$472
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Incheon to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Seoul to Colorado?

    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 Seoul to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seoul to Colorado 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 Seoul to Colorado?

    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 from Seoul to Colorado with an airline and back with another airline.

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

    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 from Seoul to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally in the evening, when round-trip flights cost $1,032 on average. Morning departures are around 7% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally at night, which is peak travel time and where the average cost of a ticket is $1,439.

Reviews of the top 5 airlines serving from Seoul to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Seoul to Colorado. 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 Seoul to Colorado? 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 1148 reviews
8.5Boarding
8.7Crew
8.2Entertainment
8.3Comfort
8.1Food
Airline reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

10.0 ExcellentAnonymous, Aug 2025ICN - ATL
Read more Korean Air reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

The crew was not very visible. This might be a good thing for people who wanted to sleep but seemed odd when compared to the Atlantic crossing where they are more present in the cabin. The Food (beef) was not good. Tough and tasteless. Would love to see more choices on a long flight like that.

The flight was great. The gate location was way to far away!!!

This was our second flight using the Delta One class of service. Overall, it’s a good product but for me the POD configuration is a bit constrictive. I am an average size male at 5’ 10” height weighing 190 lbs so it’s not a size thing for me. I’d rather have extra wide seats without the POD walls to be honest.

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Convient flight. Good experience. No complaints other than the food quality seems to have decreased.

Food tray looked like penitentiary food - little effort to make it look appealing (packaging colour and design)

Movie selection was meh. Food was great. Crew as always great. I paid for premium because that’s the only way not to feel like a sardine. That’s how economy should be imo. Sadly passengers have to pay an extra $1000 to get what they should at base price but that’s all airlines. The airline industry in general treats passengers as cargo.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

My only complaint on any flight is meals but your gnocchi was good. The worst is breakfast. I can’t understand why you don’t just serve something simple like yogurt, fruit and a muffin or cinnamon roll.

Cramped seating for me. Luckily it wasn’t a long flight

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

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

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

Flight, food and crew were all good, friendly and very satisfactory.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

You can plug your phone in & use their wifi to watch movies, etc, but the plane’s wifi was disconnected for most of the flight.

We had 3 flights. 1 & 2 were on the same plane but we had to de-board just to re-board 30 mins later. That may have been due to a crew change though. Our 3rd flight had a couple “maintenance” issues that held us up. They were quickly resolved but it took forever for someone to bring the paperwork needed so we could leave. Apparently there was a computer glitch so a driver had to bring a physical copy. It delayed us about 1 1/2 hrs. The flights themselves were smooth & no problems. For boarding, I don’t know why they don’t start with the back of the plane & move forward. It would eliminate the back up from people trying to find their seats & put their bags in the overhead bins. Unless you’re on an overseas flight, there is no food, you get a beverage & either a small bag of pretzels or a biscuit cookie. Take your own food or snacks of you want something more.

We spent too much time on board waiting for takeoff.

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Air Canada flight staff are in contact negotiations and they are less than happy and it show. The process of self checking baggage is less than desirable with lack of support staff to help

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

I did not noticed baggage was separate - I had assumed international flights included luggage, so it surprised me I had to pay to check a bag.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

Everything you need to know for your flight from Seoul to Colorado

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.