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Cheap flights from Colorado to Seoul from $434

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Seoul departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Colorado to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:42 pm - 3:50 pmDEN  Denver Intl-ICN Incheon Intl
36h 08m1 stop Los Angeles
Multiple Airlines Logo
1:00 pm - 3:05 pmICN  Incheon Intl-DEN Denver Intl
17h 05m1 stop Los Angeles
$846Multiple Airlines
Wed, Sep 16 - Mon, Sep 21
Multiple Airlines Logo
9:47 am - 9:20 pmDEN  Denver Intl-ICN Incheon Intl
20h 33m1 stop San Francisco
Multiple Airlines Logo
7:45 pm - 10:59 pmICN  Incheon Intl-DEN Denver Intl
19h 14m1 stop San Francisco
$854Multiple Airlines
Mon, Oct 26 - Mon, Nov 16
WestJet Logo
12:15 pm - 6:45 pmDEN  Denver Intl-ICN Incheon Intl
15h 30m1 stop Calgary
WestJet Logo
8:45 pm - 11:20 amICN  Incheon Intl-DEN Denver Intl
29h 35m1 stop Calgary
$886WestJet
Thu, Sep 10 - Sat, Oct 17
WestJet Logo
12:15 pm - 6:45 pmDEN  Denver Intl-ICN Incheon Intl
15h 30m1 stop Calgary
WestJet Logo
8:45 pm - 11:20 amICN  Incheon Intl-DEN Denver Intl
29h 35m1 stop Calgary
$890WestJet
Thu, Sep 10 - Sat, Oct 17
Air Canada Logo
9:10 am - 4:05 pmDEN  Denver Intl-ICN Incheon Intl
15h 55m1 stop Vancouver Intl
Air Canada Logo
5:45 pm - 4:58 pmICN  Incheon Intl-DEN Denver Intl
38h 13m1 stop Vancouver Intl
$978Air Canada
Wed, Sep 16 - Tue, Sep 22
Air Canada Logo
9:10 am - 4:05 pmDEN  Denver Intl-ICN Incheon Intl
15h 55m1 stop Vancouver Intl
Air Canada Logo
5:45 pm - 4:58 pmICN  Incheon Intl-DEN Denver Intl
38h 13m1 stop Vancouver Intl
$1,002Air Canada
Thu, Sep 17 - Tue, Sep 22
United Airlines Logo
5:10 pm - 4:40 amCOS  Colorado Springs-ICN Incheon Intl
20h 30m2 stops Denver Intl San Francisco
United Airlines Logo
6:00 pm - 8:43 amICN  Incheon Intl-COS Colorado Springs
30h 43m2 stops San Francisco Denver Intl
$1,112United Airlines
Mon, Oct 26 - Mon, Nov 23
United Airlines Logo
5:30 am - 3:00 pmCOS  Colorado Springs-ICN Incheon Intl
18h 30m2 stops Denver Intl San Francisco
United Airlines Logo
12:45 pm - 8:49 pmICN  Incheon Intl-COS Colorado Springs
24h 04m2 stops San Francisco Denver Intl
$1,212United Airlines
Thu, Oct 8 - Thu, Nov 12
Alaska Airlines Logo
8:06 pm - 5:30 pmDEN  Denver Intl-ICN Incheon Intl
30h 24m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
7:35 pm - 11:32 amICN  Incheon Intl-DEN Denver Intl
30h 57m2 stops Seattle/Tacoma Intl San Diego
$1,266Alaska Airlines
Wed, Sep 9 - Mon, Oct 5
Alaska Airlines Logo
7:59 pm - 5:35 pmDEN  Denver Intl-ICN Incheon Intl
29h 36m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
8:00 pm - 12:59 pmICN  Incheon Intl-DEN Denver Intl
32h 59m2 stops Seattle/Tacoma Intl San Diego
$1,266Alaska Airlines
Tue, Nov 3 - Mon, Nov 16

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WestJet flights from Colorado to Incheon Intl Airport

Our best WestJet deals on Colorado to Incheon Intl Airport flight tickets
WestJet
Sep 10
DEN12:15 pmDenver Intl
15h 30m
1 stop
ICN6:45 pmIncheon Intl
Oct 17
ICN8:45 pmIncheon Intl
29h 35m
1 stop
DEN11:20 amDenver Intl
$886
WestJet
Sep 10
DEN12:15 pmDenver Intl
15h 30m
1 stop
ICN6:45 pmIncheon Intl
Oct 17
ICN8:45 pmIncheon Intl
29h 35m
1 stop
DEN11:20 amDenver Intl
$890

United Airlines flights from Colorado to Incheon Intl Airport

Our best United Airlines deals on Colorado to Incheon Intl Airport flight tickets
United Airlines
Oct 26
COS5:10 pmColorado Springs
20h 30m
2 stops
ICN4:40 amIncheon Intl
Nov 23
ICN6:00 pmIncheon Intl
30h 43m
2 stops
COS8:43 amColorado Springs
$1,112
United Airlines
Oct 8
COS5:30 amColorado Springs
18h 30m
2 stops
ICN3:00 pmIncheon Intl
Nov 12
ICN12:45 pmIncheon Intl
24h 04m
2 stops
COS8:49 pmColorado Springs
$1,212
United Airlines
Oct 6
COS12:15 pmColorado Springs
25h 05m
2 stops
ICN4:20 amIncheon Intl
Nov 11
ICN12:45 pmIncheon Intl
24h 37m
2 stops
COS9:22 pmColorado Springs
$2,832

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Incheon Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Colorado to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Wed 9/16

12:42 pm-3:50 pm

1 stop36h 08m

Incheon Intl

Mon 9/21

1:00 pm-3:05 pm

1 stop17h 05m

$846
Quickest round-trip

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Mon 10/26

9:47 am-9:20 pm

1 stop20h 33m

Incheon Intl

Mon 11/16

7:45 pm-10:59 pm

1 stop19h 14m

$854

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Thu 9/10

12:15 pm-6:45 pm

1 stop15h 30m

Incheon Intl

Sat 10/17

8:45 pm-11:20 am

1 stop29h 35m

$886

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Thu 9/10

12:15 pm-6:45 pm

1 stop15h 30m

Incheon Intl

Sat 10/17

8:45 pm-11:20 am

1 stop29h 35m

$890

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Wed 9/16

9:10 am-4:05 pm

1 stop15h 55m

Incheon Intl

Tue 9/22

5:45 pm-4:58 pm

1 stop38h 13m

$978

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Thu 9/17

9:10 am-4:05 pm

1 stop15h 55m

Incheon Intl

Tue 9/22

5:45 pm-4:58 pm

1 stop38h 13m

$1,002

Colorado SpringsIncheon

COS Colorado Springs - ICN Incheon Intl

COSICN

Colorado Springs

Mon 10/26

5:10 pm-4:40 am

2 stops20h 30m

Incheon Intl

Mon 11/23

6:00 pm-8:43 am

2 stops30h 43m

$1,112

Colorado SpringsIncheon

COS Colorado Springs - ICN Incheon Intl

COSICN

Colorado Springs

Thu 10/8

5:30 am-3:00 pm

2 stops18h 30m

Incheon Intl

Thu 11/12

12:45 pm-8:49 pm

2 stops24h 04m

$1,212

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Wed 9/9

8:06 pm-5:30 pm

2 stops30h 24m

Incheon Intl

Mon 10/5

7:35 pm-11:32 am

2 stops30h 57m

$1,266

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Tue 11/3

7:59 pm-5:35 pm

2 stops29h 36m

Incheon Intl

Mon 11/16

8:00 pm-12:59 pm

2 stops32h 59m

$1,266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Colorado to Incheon Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Colorado is in February. Flight prices, which tend to average around $1,010, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of February, then departing from Colorado during the month October is also very affordable. Most momondo users find prices during this month for around $1,093.

How far in advance should I book a flight from Colorado to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,298 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Colorado for as low as $1,104 on momondo.

Can stopping save me money on Colorado to Incheon Intl Airport flights?

You could potentially save up to 41% on your flight if you consider stops on a Colorado to Incheon Intl Airport flight.

Cheap Colorado to Incheon Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Incheon Intl Airport

Fastest flight time

15h 30m

Direct flights

None
The fastest flight from Colorado to Incheon Intl Airport takes 15h 30m
There are no direct flights from Colorado to Incheon Intl Airport. There are no popular flight routes from Colorado to Incheon Intl Airport.
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Frequently asked questions about flying from Colorado to Incheon Intl Airport

  • When did momondo last update prices for flights from Colorado to Incheon Intl Airport?

    Prices for flights from Colorado to Incheon Intl Airport refresh daily.

  • How many operators does momondo search for flights from Colorado to Incheon Intl Airport?

  • How old do you have to be to fly from Colorado to Incheon Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The necessary travel and health documents for your Incheon Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Incheon Intl Airport

Compare and see reviews for airlines that fly from Colorado to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $187Free CancellationRating
7.4
10,101 reviews
Search United Airlines flights
DeltaPriceFrom $478Free CancellationRating
7.8
8,506 reviews
Search Delta flights
Korean AirPriceFrom $495Free CancellationRating
8.4
1,221 reviews
Search Korean Air flights
Alaska AirlinesPriceFrom $592Free CancellationRating
7.9
12,794 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $816Free CancellationRating
7.1
11,901 reviews
Search American Airlines flights
Air CanadaPriceFrom $906Free CancellationRating
7.1
11,462 reviews
Search Air Canada flights
Asiana AirlinesPriceFrom $1,035Free CancellationRating
8.1
554 reviews
Search Asiana Airlines flights
WestJetPriceFrom $1,157Free CancellationRating
7.2
3,430 reviews
Search WestJet flights

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Daejeon
Suwon
Seongnam
Anyang

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Seoul?

Finding the right flight to Seoul from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seoul quick and easy, saving you time and money.

Can I find flights from Colorado to Seoul with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Colorado to Seoul flights to just show those with flexible booking policies.

How can momondo help me find flights from Colorado to Seoul?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from Colorado.

I’m not ready to book a flight from Colorado to Seoul right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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