How long does it take to fly to Seoul?

If you’re flying from a popular airport in Colorado, such as Colorado Springs or Denver, and flying into Seoul, then you can expect flight times to average 19h 11m and 19h 59m, respectively.

What is the cheapest airline that flies from Colorado to Seoul?

China Eastern, Japan Airlines, and Qatar Airways are the most popular carriers operating from Colorado to Seoul

What airlines fly to Seoul?

Air Canada, Asiana Airlines and United Airlines are the top three most popular airlines that fly to Seoul from Colorado according to our data. Air Canada is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 7 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

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?

As of September 2026, there are 7 operators available to choose from 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.

$340 Cheap Flights from Colorado to Seoul in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Seoul

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:21 am - 9:20 pmDEN Denver Intl-ICN Incheon Intl

19h 59m1 stop San Francisco

7:45 pm - 9:45 amICN Incheon Intl-DEN Denver Intl

30h 00m2 stops San Francisco Los Angeles

$808Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

7:39 am - 9:20 pmDEN Denver Intl-ICN Incheon Intl

21h 41m1 stop San Francisco

7:45 pm - 12:08 amICN Incheon Intl-DEN Denver Intl

20h 23m1 stop San Francisco

$818Multiple Airlines

Mon, Dec 7 - Mon, Dec 14

8:15 am - 5:10 pmDEN Denver Intl-ICN Incheon Intl

16h 55m1 stop Vancouver Intl

6:55 pm - 6:04 pmICN Incheon Intl-DEN Denver Intl

39h 09m2 stops Vancouver Intl Edmonton

$968Air Canada

Mon, Feb 8 - Thu, Feb 18

7:05 pm - 5:10 pmDEN Denver Intl-ICN Incheon Intl

30h 05m2 stops Edmonton Vancouver Intl

6:55 pm - 6:04 pmICN Incheon Intl-DEN Denver Intl

39h 09m2 stops Vancouver Intl Edmonton

$968Air Canada

Mon, Feb 8 - Thu, Feb 18

8:15 am - 5:10 pmDEN Denver Intl-ICN Incheon Intl

16h 55m1 stop Vancouver Intl

7:05 pm - 4:43 pmICN Incheon Intl-DEN Denver Intl

36h 38m1 stop Toronto Pearson Intl

$1,199Asiana Airlines

Sun, Feb 28 - Tue, Mar 30

5:34 am - 4:45 pmCOS Colorado Springs-ICN Incheon Intl

19h 11m1 stop Dallas/Fort Worth

6:50 pm - 11:01 pmICN Incheon Intl-COS Colorado Springs

20h 11m1 stop Dallas/Fort Worth

$1,218American Airlines

Mon, Nov 2 - Mon, Nov 9

7:57 am - 4:45 pmCOS Colorado Springs-ICN Incheon Intl

17h 48m1 stop Dallas/Fort Worth

6:50 pm - 10:46 pmICN Incheon Intl-COS Colorado Springs

19h 56m1 stop Dallas/Fort Worth

$1,218American Airlines

Tue, Oct 27 - Tue, Nov 3

7:59 pm - 5:35 pmDEN Denver Intl-ICN Incheon Intl

53h 36m3 stops San Diego Oakland Seattle/Tacoma Intl

8:00 pm - 11:51 pmICN Incheon Intl-DEN Denver Intl

19h 51m2 stops Seattle/Tacoma Intl San Diego

$1,451Alaska Airlines

Mon, Feb 8 - Thu, Feb 18

6:59 pm - 5:30 pmDEN Denver Intl-ICN Incheon Intl

31h 31m2 stops San Diego Seattle/Tacoma Intl

11:15 pm - 10:38 pmICN Incheon Intl-DEN Denver Intl

39h 23m3 stops Singapore Changi Tokyo Narita Seattle/Tacoma Intl

$1,503Alaska Airlines

Tue, Oct 20 - Wed, Nov 4

5:40 pm - 6:25 pmDEN Denver Intl-ICN Incheon Intl

32h 45m1 stop Toronto Pearson Intl

6:55 pm - 6:06 pmICN Incheon Intl-DEN Denver Intl

39h 11m2 stops Vancouver Intl Edmonton

$1,816Asiana Airlines

Sun, Dec 20 - Thu, Dec 31

Cheap last minute flights

Enter your travel dates to find the best prices.

12:42 pm - 4:30 amDEN Denver Intl-ICN Incheon Intl

24h 48m1 stop Los Angeles

1:00 pm - 5:32 pmICN Incheon Intl-DEN Denver Intl

19h 32m1 stop Los Angeles

$1,005Multiple Airlines

Wed, Sep 23 - Tue, Oct 6

6:55 am - 4:25 amDEN Denver Intl-ICN Incheon Intl

30h 30m1 stop San Francisco

7:15 pm - 9:46 amICN Incheon Intl-DEN Denver Intl

29h 31m1 stop San Francisco

$1,038Multiple Airlines

Sun, Sep 27 - Mon, Oct 5

5:45 am - 3:45 pmCOS Colorado Springs-ICN Incheon Intl

19h 00m1 stop Dallas/Fort Worth

6:50 pm - 10:46 pmICN Incheon Intl-COS Colorado Springs

19h 56m1 stop Dallas/Fort Worth

$1,073American Airlines

Wed, Sep 23 - Tue, Dec 15

6:26 am - 3:45 pmDEN Denver Intl-ICN Incheon Intl

18h 19m1 stop Dallas/Fort Worth

5:50 pm - 11:58 pmICN Incheon Intl-DEN Denver Intl

21h 08m1 stop Dallas/Fort Worth

$1,073American Airlines

Thu, Sep 24 - Wed, Oct 7

8:22 am - 5:30 pmDEN Denver Intl-ICN Incheon Intl

18h 08m1 stop Seattle/Tacoma Intl

7:35 pm - 11:59 pmICN Incheon Intl-DEN Denver Intl

19h 24m2 stops Seattle/Tacoma Intl San Diego

$1,691Alaska Airlines

Thu, Sep 24 - Mon, Oct 5

8:22 am - 5:30 pmDEN Denver Intl-ICN Incheon Intl

18h 08m1 stop Seattle/Tacoma Intl

7:35 pm - 11:59 pmICN Incheon Intl-DEN Denver Intl

19h 24m2 stops Seattle/Tacoma Intl San Diego

$1,741Alaska Airlines

Fri, Sep 25 - Mon, Oct 5

7:51 am - 4:05 pmDEN Denver Intl-ICN Incheon Intl

17h 14m1 stop Vancouver Intl

5:45 pm - 4:58 pmICN Incheon Intl-DEN Denver Intl

14h 13m1 stop Vancouver Intl

$1,839Air Canada

Wed, Sep 23 - Tue, Oct 6

12:15 pm - 6:45 pmDEN Denver Intl-ICN Incheon Intl

15h 30m1 stop Calgary

8:45 pm - 11:20 amICN Incheon Intl-DEN Denver Intl

29h 35m1 stop Calgary

$1,845WestJet

Fri, Sep 25 - Sun, Oct 4

12:15 pm - 6:45 pmDEN Denver Intl-ICN Incheon Intl

15h 30m1 stop Calgary

8:45 pm - 11:20 amICN Incheon Intl-DEN Denver Intl

29h 35m1 stop Calgary

$1,855WestJet

Fri, Sep 25 - Sun, Oct 4

9:10 am - 4:05 pmDEN Denver Intl-ICN Incheon Intl

15h 55m1 stop Vancouver Intl

5:45 pm - 4:58 pmICN Incheon Intl-DEN Denver Intl

14h 13m1 stop Vancouver Intl

$1,861Air Canada

Wed, Sep 23 - Sun, Oct 4

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Qatar Airways flights from Colorado to Seoul

Our best Qatar Airways deals on Colorado to Seoul flight tickets

Qatar Airways

Sep 23

COS1:18 pmColorado Springs

38h 47m

2 stops

ICN7:05 pmIncheon Intl

Oct 2

ICN6:30 pmIncheon Intl

39h 06m

2 stops

COS6:36 pmColorado Springs

$1,227

Qatar Airways

Jan 24

COS10:36 amColorado Springs

38h 39m

2 stops

ICN5:15 pmIncheon Intl

Feb 26

ICN12:20 amIncheon Intl

34h 17m

2 stops

COS6:37 pmColorado Springs

$1,267

Qatar Airways

Sep 23

COS1:18 pmColorado Springs

38h 47m

2 stops

ICN7:05 pmIncheon Intl

Dec 14

ICN12:20 amIncheon Intl

34h 14m

2 stops

COS6:34 pmColorado Springs

$1,298

United Airlines flights from Colorado to Seoul

Our best United Airlines deals on Colorado to Seoul flight tickets

United Airlines

Oct 29

COS10:34 amColorado Springs

27h 06m

2 stops

ICN4:40 amIncheon Intl

Nov 5

ICN6:00 pmIncheon Intl

18h 04m

2 stops

COS8:04 pmColorado Springs

$1,661

United Airlines

Oct 16

COS9:23 amColorado Springs

27h 57m

2 stops

ICN4:20 amIncheon Intl

Oct 23

ICN11:30 amIncheon Intl

24h 14m

2 stops

COS8:44 pmColorado Springs

$1,861

United Airlines

Sep 24

COS5:30 amColorado Springs

18h 30m

2 stops

ICN3:00 pmIncheon Intl

Oct 5

ICN11:30 amIncheon Intl

23h 39m

2 stops

COS8:09 pmColorado Springs

$2,060

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Wed 11/4

9:21 am-9:20 pm

1 stop19h 59m

Incheon Intl

Wed 11/11

7:45 pm-9:45 am

2 stops30h 00m

$808

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Mon 12/7

7:39 am-9:20 pm

1 stop21h 41m

Incheon Intl

Mon 12/14

7:45 pm-12:08 am

1 stop20h 23m

$818

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Mon 2/8

8:15 am-5:10 pm

1 stop16h 55m

Incheon Intl

Thu 2/18

6:55 pm-6:04 pm

2 stops39h 09m

$968

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Mon 2/8

7:05 pm-5:10 pm

2 stops30h 05m

Incheon Intl

Thu 2/18

6:55 pm-6:04 pm

2 stops39h 09m

$968

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Sun 2/28

8:15 am-5:10 pm

1 stop16h 55m

Incheon Intl

Tue 3/30

7:05 pm-4:43 pm

1 stop36h 38m

$1,199

Colorado SpringsIncheon

COS Colorado Springs - ICN Incheon Intl

COSICN

Colorado Springs

Mon 11/2

5:34 am-4:45 pm

1 stop19h 11m

Incheon Intl

Mon 11/9

6:50 pm-11:01 pm

1 stop20h 11m

$1,218

Quickest round-trip

Colorado SpringsIncheon

COS Colorado Springs - ICN Incheon Intl

COSICN

Colorado Springs

Tue 10/27

7:57 am-4:45 pm

1 stop17h 48m

Incheon Intl

Tue 11/3

6:50 pm-10:46 pm

1 stop19h 56m

$1,218

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Mon 2/8

7:59 pm-5:35 pm

3 stops53h 36m

Incheon Intl

Thu 2/18

8:00 pm-11:51 pm

2 stops19h 51m

$1,451

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Tue 10/20

6:59 pm-5:30 pm

2 stops31h 31m

Incheon Intl

Wed 11/4

11:15 pm-10:38 pm

3 stops39h 23m

$1,503

DenverIncheon

DEN Denver Intl - ICN Incheon Intl

DENICN

Denver Intl

Sun 12/20

5:40 pm-6:25 pm

1 stop32h 45m

Incheon Intl

Thu 12/31

6:55 pm-6:06 pm

2 stops39h 11m

$1,816

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Seoul?

The month of April is another great option to travel to Seoul, with average flight prices from Colorado averaging around $1,165.

How far in advance should I book a flight from Colorado 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 $1,328 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 $1,112 on momondo.

Can stopping save me money on Colorado to Seoul flights?

You could potentially save up to 2% 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

Best Price Found	$340
Fastest flight time	19h 11m
Direct flights	None

The best one-way flight to Seoul from Colorado in the past 72 hours is $340. The best round-trip flight deal from Colorado to Seoul found on momondo in the last 72 hours is $808.

The fastest flight from Colorado to Seoul takes 19h 11m

There are no direct flights from Colorado to Seoul. There are no popular flight routes from Colorado to Seoul.

Search flight deals

Frequently asked questions about flying from Colorado to Seoul

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?
As of September 2026, there are 7 operators available to choose from 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
United Airlines	PriceFrom $428	Free Cancellation	Rating 7.4 10,229 reviews	Search United Airlines flights
Delta	PriceFrom $478	Free Cancellation	Rating 7.8 8,595 reviews	Search Delta flights
Alaska Airlines	PriceFrom $592	Free Cancellation	Rating 7.9 12,953 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $816	Free Cancellation	Rating 7.0 12,081 reviews	Search American Airlines flights
Air Canada	PriceFrom $843	Free Cancellation	Rating 7.1 11,667 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $999	Free Cancellation	Rating 8.1 562 reviews	Search Asiana Airlines flights
WestJet	PriceFrom $1,157	Free Cancellation	Rating 7.2 3,446 reviews	Search WestJet 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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Cheap flights from Colorado to Seoul from $340

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 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qatar Airways flights from Colorado to Seoul

Our best Qatar Airways deals on Colorado to Seoul flight tickets

United Airlines flights from Colorado to Seoul

Our best United Airlines deals on Colorado to Seoul flight tickets

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Use the filters below to find and compare flights from Colorado to Seoul that are best for you.

See travel insights to Seoul from

How to get the cheapest flight ticket from Colorado to Seoul

What is the cheapest month to fly to Seoul?

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

Can stopping save me money on Colorado to Seoul flights?

What is the cheapest airline that flies from Colorado to Seoul?

What airlines fly to Seoul?

How long does it take to fly to Seoul?

Cheap Colorado to Seoul flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Colorado to Seoul

Best airlines flying from Colorado to Seoul

Compare and see reviews for airlines that fly from Colorado to Seoul with momondo

Why use momondo?

An easier way to manage your Seoul trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favorite airline to Seoul

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seoul

List of cabin classes available on flights landing in Seoul. Availability may vary depending on flight origin and airline.

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Colorado

According to popular flight searches on momondo this year

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