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Cheap flights from Colorado to Seoul from $368

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 4/1. 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
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
10:29 pm - 4:20 pm
DEN
-
ICN
26h 51m
1 stop
Multiple Airlines Logo
6:55 pm - 12:37 am
ICN
-
DEN
20h 42m
1 stop
$770Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
10:29 pm - 4:20 pm
DEN
-
ICN
25h 51m
1 stop
Multiple Airlines Logo
6:55 pm - 12:37 am
ICN
-
DEN
20h 42m
1 stop
$792Multiple Airlines
Fri, Mar 6 - Fri, Mar 13
United Airlines Logo
8:45 am - 5:40 am
COS
-
ICN
28h 55m
2 stops
United Airlines Logo
12:45 pm - 4:30 pm
ICN
-
COS
19h 45m
2 stops
$1,088United Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
11:35 am - 5:40 am
COS
-
ICN
26h 05m
2 stops
United Airlines Logo
12:45 pm - 4:30 pm
ICN
-
COS
19h 45m
2 stops
$1,138United Airlines
Wed, Feb 18 - Sun, Feb 22
China Eastern Logo
7:10 am - 7:50 pm
DEN
-
GMP
45h 40m
2 stops
China Eastern Logo
8:50 pm - 5:35 pm
GMP
-
DEN
35h 45m
2 stops
$1,397China Eastern
Thu, Apr 23 - Sat, May 9
China Eastern Logo
5:45 am - 11:00 am
DEN
-
GMP
37h 15m
2 stops
China Eastern Logo
8:50 pm - 6:00 pm
GMP
-
DEN
36h 10m
2 stops
$1,440China Eastern
Mon, Mar 2 - Thu, Mar 19
ANA Logo
11:22 am - 11:20 am
DEN
-
GMP
31h 58m
2 stops
ANA Logo
12:25 pm - 10:30 pm
GMP
-
DEN
25h 05m
2 stops
$1,459ANA
Wed, Mar 4 - Wed, Mar 11
Air China Logo
5:33 pm - 1:05 pm
DEN
-
GMP
27h 32m
2 stops
Air China Logo
2:25 pm - 8:21 am
GMP
-
DEN
32h 56m
2 stops
$1,476Air China
Fri, Mar 6 - Fri, Mar 13
Air China Logo
5:33 pm - 2:10 pm
DEN
-
GMP
28h 37m
2 stops
Air China Logo
2:25 pm - 8:21 am
GMP
-
DEN
32h 56m
2 stops
$1,563Air China
Thu, Mar 5 - Thu, Mar 12
ANA Logo
1:25 pm - 11:05 am
DEN
-
GMP
30h 40m
2 stops
ANA Logo
12:40 pm - 10:56 pm
GMP
-
DEN
25h 16m
2 stops
$1,599ANA
Tue, Apr 21 - Thu, Apr 30

United Airlines flights from Colorado to Seoul

Our best United Airlines deals on Colorado to Seoul flight tickets
United Airlines
Feb 18
COS8:45 amColorado Springs
28h 55m
2 stops
ICN5:40 amIncheon Intl
Feb 22
ICN12:45 pmIncheon Intl
19h 45m
2 stops
COS4:30 pmColorado Springs
$1,088
United Airlines
Feb 18
COS3:40 pmColorado Springs
22h 00m
2 stops
ICN5:40 amIncheon Intl
Feb 22
ICN6:00 pmIncheon Intl
32h 52m
2 stops
COS10:52 amColorado Springs
$1,138
United Airlines
Feb 18
COS12:20 pmColorado Springs
25h 20m
2 stops
ICN5:40 amIncheon Intl
Feb 22
ICN6:00 pmIncheon Intl
34h 31m
2 stops
COS12:31 pmColorado Springs
$1,152

Turkish Airlines flights from Colorado to Seoul

Our best Turkish Airlines deals on Colorado to Seoul flight tickets
Turkish Airlines
Feb 14
DEN7:20 pmDenver Intl
31h 00m
1 stop
ICN6:20 pmIncheon Intl
Mar 18
ICN10:45 amIncheon Intl
46h 50m
1 stop
DEN6:35 pmDenver Intl
$936
Turkish Airlines
Feb 7
DEN7:20 pmDenver Intl
31h 00m
1 stop
ICN6:20 pmIncheon Intl
Feb 16
ICN12:10 amIncheon Intl
33h 25m
1 stop
DEN5:35 pmDenver Intl
$1,000
Turkish Airlines
Feb 7
DEN7:20 pmDenver Intl
31h 00m
1 stop
ICN6:20 pmIncheon Intl
Feb 16
ICN12:10 amIncheon Intl
33h 25m
1 stop
DEN5:35 pmDenver Intl
$1,006

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Seoul 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 February 6, 2026.
Use the filters below to find and compare flights from Colorado to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Wed 3/11

10:29 pm-4:20 pm

1 stop26h 51m

Incheon Intl

Wed 3/18

6:55 pm-12:37 am

1 stop20h 42m

$770

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 3/6

10:29 pm-4:20 pm

1 stop25h 51m

Incheon Intl

Fri 3/13

6:55 pm-12:37 am

1 stop20h 42m

$792

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Wed 2/18

8:45 am-5:40 am

2 stops28h 55m

Incheon Intl

Sun 2/22

12:45 pm-4:30 pm

2 stops19h 45m

$1,088

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Wed 2/18

11:35 am-5:40 am

2 stops26h 05m

Incheon Intl

Sun 2/22

12:45 pm-4:30 pm

2 stops19h 45m

$1,138

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Thu 4/23

7:10 am-7:50 pm

2 stops45h 40m

Seoul Gimpo Intl

Sat 5/9

8:50 pm-5:35 pm

2 stops35h 45m

$1,397

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Mon 3/2

5:45 am-11:00 am

2 stops37h 15m

Seoul Gimpo Intl

Thu 3/19

8:50 pm-6:00 pm

2 stops36h 10m

$1,440

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Wed 3/4

11:22 am-11:20 am

2 stops31h 58m

Seoul Gimpo Intl

Wed 3/11

12:25 pm-10:30 pm

2 stops25h 05m

$1,459

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Fri 3/6

5:33 pm-1:05 pm

2 stops27h 32m

Seoul Gimpo Intl

Fri 3/13

2:25 pm-8:21 am

2 stops32h 56m

$1,476

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Thu 3/5

5:33 pm-2:10 pm

2 stops28h 37m

Seoul Gimpo Intl

Thu 3/12

2:25 pm-8:21 am

2 stops32h 56m

$1,563

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Tue 4/21

1:25 pm-11:05 am

2 stops30h 40m

Seoul Gimpo Intl

Thu 4/30

12:40 pm-10:56 pm

2 stops25h 16m

$1,599

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from Colorado to Seoul

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 Seoul?

The month of September is another great option to travel to Seoul, with average flight prices from Colorado averaging around $1,050.

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

You are more likely to see cheaper flights to Seoul from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,251 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Colorado for as low as $1,019 on momondo.

Can stopping save me money on Colorado to Seoul flights?

You could potentially save up to 24% on your flight if you consider stops on a Colorado to Seoul flight.

Cheap Colorado to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Seoul

Fastest flight time

17h 25m

Direct flights

None
The fastest flight from Colorado to Seoul takes 17h 25m
There are no direct flights from Colorado to Seoul. There are no popular flight routes from Colorado to Seoul.
Search flight deals

  • When did momondo last update prices for flights from Colorado to Seoul?

    Prices for flights from Colorado to Seoul were last updated today.

  • How many operators does momondo search for flights from Colorado to Seoul?

  • How old do you have to be to fly from Colorado to Seoul?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Colorado to Seoul

Compare and see reviews for airlines that fly from Colorado to Seoul with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $54Free CancellationRating
5.7
3,053 reviews
Search Frontier flights
United AirlinesPriceFrom $187Free CancellationRating
7.4
9,241 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,155 reviews
Search Delta flights
AIR PREMIAPriceFrom $585Free CancellationRating
8.3
78 reviews
Search AIR PREMIA flights
Korean AirPriceFrom $586Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $740Free CancellationRating
8.1
503 reviews
Search Asiana Airlines flights
WestJetPriceFrom $748Free CancellationRating
7.2
3,255 reviews
Search WestJet flights
American AirlinesPriceFrom $816Free CancellationRating
7.2
11,239 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $863Free CancellationRating
7.3
4,210 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $975Free CancellationRating
7.1
10,696 reviews
Search Air Canada flights

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?

All flight searches from Colorado to Seoul on momondo can be filtered to show those which offer 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?

If you are not ready to book a flight from Colorado to Seoul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seoul and let you know when they change.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport