$384 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 2/9. 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

Search 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Colorado, as well as popular online travel agencies
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.

Good to know

Low season

January

High season

May

Cheapest flight

$384
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 14% 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.

See more FAQs

Top tips for finding cheap flights to Colorado

  • High season is considered to be July, August and September. The cheapest month to fly from Seoul is November.
  • Morning departure is around 26% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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 1039 reviews
8.3Comfort
8.7Crew
8.1Food
8.5Boarding
8.2Entertainment
Airline reviews

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

10.0 ExcellentAnonymous, Jan 2025DTW - TYS
Read more Korean Air reviews

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

I took several flights that day, this was the only flight that was absolutely freezing!! It was so cold.

They changed aircrafts and they moved my seats that were already prepaid. I did not get the seats I paid for, so I got expensive seats that I didn't want

The flight was at least 3 hours late with not much of an explanation other than connecting flight was late

Good. Obviously there is a slightly condescending attitude of all American workers towards their customers but other than that all good.

Thanks for fixing the title of this question... the flight was a DELTA one marketed as a Korean Air flight. Which automatically makes it worse. The crew were actually rude in several cases and clearly lacked cultural sensitivity to the majority of the passengers (Koreans). This flight was also a minor heart attack before it started. Firstly, I thought I was buying a flight from Kayak, but it turns out they just acted as a front for this other company, UnderPricer, which took almost 24 hours to send a proper confirmation of the flight. We could not select the seats at checkout time either. We later submitted our seat selection to Korean Air, who proceeded to mess up the instructions to Delta, so our family was separated on the flight and our aisle seat was replaced with another middle seat.

It was a great experience in all aspects including passengers are respectful to each other. I will consider to fly with Korean Air again in the future.

It was a comfortable flight and the flight crew were lovely!

I won't hesitate to fly with Korean Air again and agian....if I can get a good deal.

The flight attendants seemed to be a little more grumpy this time. A350s could use more toilet stalls.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

It was terrible, I sat next to a person with a cat, I'm allergic to animal dander, my discomfort was extreme

Seats were really tight and the seat belts did not give enough slack.

Great list of movies, seat was generally comfortable, but not much shoulder room. The fresh baked cookie mostly made up for the lack of variety with the meals, which were all tomato based.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

I liked all the informational texts. I always knew where to go and when .

Not as good as expected Air Can needs to improve totally rated on internet as worst

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was 4 hours late. Almost missed my connecting flight no food or drinks on connecting flight. Overall terrible experience

My experience was medium staff where great I dislike flying in triple 7 seats very uncomfortable and no room on jet all the rest of the flights where great

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

Boarded over an hour late, no communication, the sign just changed, no attendant to answer questions - she disappeared forever (hiding). Small plane and couldn’t hear the overhead nor understand.

Service in first class no longer exists on American Airlines .

Customer service in first class does not exist on American Airlines

I never have a good experience with American and this was no different. The airplane was INCREDIBLY hot. Like unbearably so. Everyone was fanning themselves with pamphlets and sweating. When someone asked the flight attendant to turn down the temperature they were told there was nothing the crew could do. Once we pushed back from the gate we then had to wait an hour to take off and the communication from the crew was not good. People were getting up this whole time and a man was even in the bathroom when we took off. Once we landed at our destination we waited another 30 minutes at the gate to deplane with, again, no communication from the crew as to what was going on.

Flight was delayed due to a steering issue with plane. The delay caused me to miss the connecting flight. The delay caused me to spend an extra 21 hours in airports and flights to get to my destination. The plane issue obviously should have been found and fixed before we even boarded. Ridiculous.

First, to be fair, the flight was on time and the trip through the air was relatively smooth. But the flight was full, and they were checking carryons. As this process went on, the crew got increasingly rude and overbearing. During the drink service, a young girl (maybe 9) who had gotten up to use the lavatory got stuck behind the cart. At some point, she started feeling fearful and overwhelmed. Passengers noticed this and asked the crew to let her return to her seat. They refused. Then she started crying, and they still refused to move the cart forward to let her sit. The poor girl was trying to be brave and compose herself. The crew handled the situation terribly and with zero grace or decency. That episode, to me, encapsulates AA’s attitude toward its passengers. Disgraceful. The plane itself was cramped and miserable, as usual. There was zero inflight media or entertainment, other than the lane and borderline inappropriate jokes the steward made during the safety briefing. Then, of course, it took the better part of an hour for the checked bags to show up at the carousel. AA is no better than the el cheapo airlines these days and a far, far cry from its former self.

First class flight attendant was rude and lacked any customer service skills.

Customer service for American Airlines first class is at an all time low.

Paid for a window and was assigned to a middle seat with 2 very large people on each side of me. Flight was sold out and I feel I need to be refunded foe paying for a window seat and being put in a middle one..

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

So we didn't actually go. We were hoping to go for the Inauguration of the first female president. When That Guy got elected, we bailed. Unfortunately, we got basically none of our money back, despite having travel insurance. Would not fly with Air Canada again unless I had to.

flight was delayed, there was open communication about the delay the delay pushed way past the posted delay time and

Ok Did not like that the second leg of flight was moved earlier making it a rush to make it

This was my first time flying on Air Canada and the experience was good and pleasant enough, great crew members and the price I paid was amazing,

This was my first time and the experience was good and pleasant enough, great crew members and the price I paid was amazing,

Overcharged by either United or Air Canada. Abuse of access to my credit/debit card.

I was overcharged either by United or sister airline Air Canada. It's exhausting dealing with companies nowadays that irresponsibly abuse access to credit/debit cards.

Air Canada is not only the worst airline in the business but the worst business in history.

Your crew was so so so wonderful Only thing sound be great if you kept some phone chargers and converters rest 👌👌👌👌

Book cheap flights from Seoul to Colorado

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Seoul to Colorado found on KAYAK in the last 72 hours.
3/10Mon
2 stops
24h 01mICN-DEN
3/13Thu
2 stops
45h 35mDEN-ICN
$658
2/5Wed
2 stopsAmerican Airlines
30h 33mICN-DEN
2/26Wed
1 stopAmerican Airlines
31h 58mDEN-ICN
$740
3/10Mon
1 stopAir Canada
15h 25mICN-DEN
3/13Thu
1 stopAir Canada
16h 45mDEN-ICN
$839
3/31Mon
1 stopAir Canada
30h 15mICN-DEN
4/4Fri
1 stopAir Canada
16h 35mDEN-ICN
$857
2/18Tue
2 stopsDelta
31h 32mICN-DEN
2/27Thu
2 stopsDelta
18h 35mDEN-ICN
$939
3/31Mon
1 stopDelta
19h 28mICN-DEN
4/4Fri
2 stopsDelta
20h 35mDEN-ICN
$991
2/24Mon
2 stopsUnited Airlines
44h 18mICN-DEN
2/28Fri
1 stopUnited Airlines
24h 10mDEN-ICN
$1,005
2/4Tue
3 stopsUnited Airlines
37h 05mICN-DEN
3/4Tue
2 stopsUnited Airlines
29h 55mDEN-ICN
$1,042
3/20Thu
1 stopKorean Air
18h 34mICN-DEN
3/29Sat
1 stopKorean Air
22h 15mDEN-ICN
$1,071
4/1Tue
1 stopKorean Air
18h 38mICN-DEN
4/20Sun
1 stopKorean Air
22h 11mDEN-ICN
$1,075

Search by stops

Search by airline

Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seoul to Colorado found on KAYAK in the last 72 hours.
2/9Sun
2 stops
41h 36mICN-DEN
$384
2/2Sun
2 stops
59h 25mICN-DEN
$389
2/2Sun
3 stops
40h 21mICN-DEN
$395
4/1Tue
2 stopsAir Canada
30h 06mICN-DEN
$560
5/31Sat
1 stopAir Canada
16h 38mICN-DEN
$586
4/25Fri
2 stopsUnited Airlines
38h 19mICN-COS
$806
2/8Sat
2 stopsUnited Airlines
18h 08mICN-COS
$874
3/21Fri
1 stopAmerican Airlines
20h 57mICN-COS
$957
1/27Mon
1 stopKorean Air
19h 16mICN-COS
$1,807
2/8Sat
1 stopKorean Air
27h 22mICN-COS
$2,033

Search by stops

Search by airline

Search by price

Last minute flights from Seoul to Colorado

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seoul to Colorado that are departing in the next 10 days.
1/24Fri
multi-stopUnited Airlines
27h 14mICN-DEN
2/8Sat
multi-stopUnited Airlines
36h 58mDEN-ICN
$1,159
1/22Wed
multi-stop
41h 53mICN-DEN
3/5Wed
multi-stop
39h 20mDEN-ICN
$1,335
1/24Fri
multi-stopUnited Airlines
21h 44mICN-DEN
2/8Sat
multi-stopUnited Airlines
29h 55mDEN-ICN
$1,384
1/22Wed
multi-stopAir Canada
15h 37mICN-DEN
3/5Wed
multi-stopAir Canada
31h 19mDEN-ICN
$1,409
1/23Thu
multi-stopTurkish Airlines
33h 30mICN-DEN
2/8Sat
multi-stopTurkish Airlines
34h 50mDEN-ICN
$2,614
1/23Thu
multi-stopQatar Airways
34h 56mICN-DEN
2/8Sat
multi-stopQatar Airways
36h 35mDEN-ICN
$2,984
1/24Fri
multi-stopUnited Airlines
26h 00mICN-DEN
2/20Thu
multi-stopUnited Airlines
18h 50mDEN-ICN
$6,531
1/24Fri
multi-stop
43h 37mICN-DEN
2/20Thu
multi-stop
28h 00mDEN-ICN
$6,627
1/24Fri
multi-stop
36h 52mICN-DEN
2/20Thu
multi-stop
22h 20mDEN-ICN
$6,670
1/23Thu
multi-stop
33h 30mICN-DEN
2/20Thu
multi-stop
55h 30mDEN-ICN
$9,572

Search by stops

Search by airline

Search by price

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.