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Find cheap flights from Seoul Incheon Airport to Colorado from $421

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon to Colorado departing on 5/13. 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
0 bags
Wed 6/5
Wed 6/12

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Best Colorado Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Denver
Denver1 stop$589
Colorado Springs
Colorado Springs2 stops$1,581

Good to know

Low season

March

High season

July

Cheapest flight

$421
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Seoul Incheon Airport to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Incheon 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 Incheon to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colorado from Incheon 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 Incheon 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 to Colorado with an airline and back to Incheon with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Incheon 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 to Colorado from Incheon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Incheon to Colorado

 
Need help choosing which airline to fly with from Incheon 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.
8.5
Korean AirOverall score based on 1185 reviews
8.3Comfort
8.2Food
8.2Entertainment
8.6Boarding
8.8Crew
Airline reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

10.0 ExcellentAnonymous, Apr 2024ICN - SGN
Read more about Korean Air reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

Not very comfortable seated in the back plane due to turbulence

Everything about Korean air is great, hands down! Will always prefer this airline from other carriers.

Ford not that great the seat not to big for leg room like other airline

Crew was ok, but some passengers were a bit rude. Again, all outlets were not working, only the really slow charging usb plug on the entertainment system. Entertainment system was also bugged, some features just crash, the touch screen wasn't working and when trying to watch a movie the onscreen display kept flashing off and on making it very difficult to watch.

New plane. Perfect gluten free meal Very flawless procedures from check-in to the landing. Taking off on time and landing even earlier and the luggages are already there after shortest arrival report.

It was ok. Not good and not a bad experience

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

I like your stewardess, they are nice. However, your food could have been better and wheres your dessert? You do not offer beer or scotch. I do not drink alcohol biut my husband can have one or two, he has to ask if he can have one. during dinner or lunch, it should be offerred. Also, you do not have the most famous drinks ginger ale

Not accommodating ground staff On board slow service Crew members not very friendly

Staff on board were good - food was fine tasted good - tv was old 1970ts in seat back but hey it was a 2 out flight so no drama

Cons: "No entertainment, no place to plug in devices, extremely uncomfortable. The worst part was the Dixie cup of water served. Really?!? A bottle or larger cup would have broke the bank? Was so thirsty by the time we landed even though I had the attendants bring me water three times."

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

I requested an aisle seat and got a middle seat The flight gate was changed and the flight was delayed

Seating cramped; close to toilet, foul smelling and noisy, very unhygienic and disease risk Free and paid Wi-Fi NOT accessible at all - misleading advertising Very expensive sunglasses disappeared from back seat pouch. Coffee disgusting and cold

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

Perfect experience from boarding through to leaving the flight, comfortable and personalised service from all staff, highly recommended

They were able to assist my elderly father and myself after not being able to check in to scoot. The counter service was phenomenal. They did what they could to get us on the next plane so we could catch our Connecting flight. Scoot closed early on us so we ended up missing our flight.

They are great with every aspect of customer service. Helped my elderly father and aided him with using the restroom.

Transfer within the same terminal and lots of facilities at the airport.

At the boarding gate, Jeju airline accepted "carry on" bags for checking in for free due to the "limited cabin space". This is because most passengers were carrying multiple bags that exceed the size and weight limit for carry on items. Rather than inspecting carry-on bags at the counter and requiring excess bags to be checked in for a fee, they allowed freeloading at the boarding gate to to the detriment of those who paid the fee for checked bags. This is totally unfair.

As posred earlier the crew was very accommodating & professional. Thank You Allen

All though you can not help it the kids was loud and unruly, The crew was very accommodating and professional. Thank You Allen.

No priority counter check in for families with young children.

The flight was delayed from GUM to ICN, there was no notification on how delayed the flight would be. Although we received notice, there was no specified time given. The flight was also very uncomfortable.

Cons: "Sold me a ticket then cancelled 15 minutes later due to not having updated information from the airline on bookings."

ok flight, but charged for everything. water, food, baggage. no free water available, I had to plead to give me water to take medicine.

Need to consider about zero entertainment services and lack of flight information!

I can't board the 2nd flight due to the last 1st flight. In the 1st flight check-in, I can't board due to the stupid problem of K-ETA visa. The booking system and the flight company should inform the customer a few days earlier. This is the worse experience in my life. I won't use KAYAK and the airline anymore. My friends were also surprised about this stupid situation. I won't use KAYAK and T'way anymore.

I can't board the flight due to the K-ETA problem. You should inform the customer clearly a few days before the flight. I can't cancel/change the flight now. This is the worst experience in my life. I also never hear about this kind of bad experience. I won't use the booking system and the flight company anymore.

Pros: "We received great assistance at the check-in counter and were helped out even though we arrived late. The ground crew was actually great."
Cons: "We only got water. Felt like a bus ride. Minimum comfort but fair for the price."

Book cheap flights from Incheon to Colorado

Recent round-trip flight deals

9/23Mon
1 stopUnited Airlines
36h 03mICN-DEN
10/1Tue
2 stopsUnited Airlines
32h 00mDEN-ICN
$589
9/5Thu
2 stopsAmerican Airlines
33h 39mICN-DEN
9/11Wed
1 stopAmerican Airlines
17h 41mDEN-ICN
$596
5/27Mon
1 stop
26h 05mICN-DEN
8/22Thu
2 stops
29h 40mDEN-ICN
$964
5/29Wed
1 stop
20h 48mICN-DEN
6/10Mon
1 stop
22h 19mDEN-ICN
$1,105
10/9Wed
1 stopKorean Air
18h 17mICN-DEN
10/24Thu
1 stopKorean Air
19h 35mDEN-ICN
$1,106
10/9Wed
1 stopKorean Air
17h 24mICN-DEN
10/27Sun
1 stopKorean Air
18h 20mDEN-ICN
$1,162
5/20Mon
1 stopAsiana Airlines
34h 28mICN-DEN
5/22Wed
1 stopAsiana Airlines
18h 35mDEN-ICN
$1,560
10/8Tue
3 stopsSingapore Airlines
42h 13mICN-DEN
10/17Thu
2 stopsSingapore Airlines
34h 45mDEN-ICN
$1,590
6/1Sat
1 stopAsiana Airlines
16h 39mICN-DEN
6/22Sat
1 stopAsiana Airlines
18h 30mDEN-ICN
$1,597
11/1Fri
2 stopsSingapore Airlines
31h 40mICN-DEN
11/5Tue
3 stopsSingapore Airlines
33h 52mDEN-ICN
$1,677

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Recent one-way flight deals

5/13Mon
1 stopAmerican Airlines
20h 37mICN-DEN
$421
5/13Mon
2 stopsAmerican Airlines
19h 40mICN-DEN
$426
5/27Mon
1 stop
26h 05mICN-DEN
$445
5/27Mon
2 stops
30h 30mICN-DEN
$484
9/10Tue
1 stopAir Canada
31h 15mICN-DEN
$725
9/12Thu
1 stopKorean Air
20h 05mICN-DEN
$818
9/6Fri
1 stopAir Canada
31h 15mICN-DEN
$862
9/23Mon
3 stopsSingapore Airlines
34h 45mICN-DEN
$920
9/12Thu
2 stopsSingapore Airlines
47h 15mICN-DEN
$921
9/13Fri
1 stopKorean Air
14h 39mICN-DEN
$933

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Last minute flights from Incheon to Colorado

Last minute flight, train and bus deals

5/6Mon
multi-stopAsiana Airlines
15h 52mICN-DEN
5/8Wed
multi-stopAsiana Airlines
18h 30mDEN-ICN
$1,430
5/6Mon
multi-stopAsiana Airlines
16h 28mICN-DEN
5/11Sat
multi-stopAsiana Airlines
31h 24mDEN-ICN
$1,482
5/6Mon
multi-stopAsiana Airlines
34h 56mICN-DEN
5/10Fri
multi-stopAsiana Airlines
29h 20mDEN-ICN
$1,486
5/7Tue
multi-stopAsiana Airlines
16h 28mICN-DEN
6/1Sat
multi-stopAsiana Airlines
18h 30mDEN-ICN
$1,560
5/6Mon
multi-stop
18h 49mICN-DEN
5/8Wed
multi-stop
47h 15mDEN-ICN
$1,598
5/6Mon
multi-stop
19h 30mICN-DEN
5/11Sat
multi-stop
34h 06mDEN-ICN
$1,613
5/8Wed
multi-stop
17h 36mICN-DEN
5/14Tue
multi-stop
32h 11mDEN-ICN
$1,628
5/7Tue
multi-stopKorean Air
19h 09mICN-DEN
5/17Fri
multi-stopKorean Air
19h 15mDEN-ICN
$1,823
5/6Mon
multi-stopCathay Pacific
26h 42mICN-DEN
5/8Wed
multi-stopCathay Pacific
38h 35mDEN-ICN
$2,460
5/7Tue
multi-stopSingapore Airlines
34h 49mICN-DEN
6/1Sat
multi-stopSingapore Airlines
34h 45mDEN-ICN
$8,691

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Incheon - Colorado Flights

Departure:

Seoul Incheon Airport (ICN)South Korea

Return flight deals:

Colorado - Seoul Incheon Airport

Cabin classes: