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

China Eastern, American Airlines, and Turkish Airlines are the most popular carriers operating from Colorado to Seoul

How long does it take to fly to Seoul?

If you’re flying from a popular airport in Colorado, such as Denver or Colorado Springs, and flying into Seoul, then you can expect flight times to average 18h 45m and 19h 06m, respectively.

What airlines fly to Seoul?

Air Canada, Asiana Airlines and Korean Air 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 54% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 10 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 March 2026, there are 10 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.

$425 Cheap Flights from Colorado to Seoul in 2026

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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.

9:25 pm - 8:10 pm

DEN

ICN

31h 45m

1 stop

7:10 am - 9:52 am

ICN

DEN

41h 42m

2 stops

$887Multiple Airlines

Tue, Apr 28 - Tue, May 12

10:29 pm - 3:50 pm

DEN

ICN

26h 21m

1 stop

11:20 am - 9:52 am

ICN

DEN

37h 32m

2 stops

$902Multiple Airlines

Fri, Apr 24 - Mon, May 11

7:25 am - 11:00 am

DEN

GMP

36h 35m

2 stops

8:50 pm - 5:35 pm

GMP

DEN

35h 45m

2 stops

$996China Eastern

Mon, Apr 27 - Tue, May 12

5:39 am - 3:45 pm

COS

ICN

19h 06m

1 stop

6:35 pm - 8:27 pm

ICN

COS

17h 52m

1 stop

$1,068American Airlines

Mon, Sep 21 - Tue, Nov 17

5:39 am - 3:45 pm

COS

ICN

19h 06m

1 stop

6:35 pm - 12:06 pm

ICN

COS

33h 31m

2 stops

$1,073American Airlines

Mon, Sep 21 - Tue, Nov 17

8:35 pm - 9:15 pm

DEN

GMP

33h 40m

2 stops

7:15 pm - 5:48 pm

GMP

DEN

37h 33m

2 stops

$1,116Japan Airlines

Mon, Apr 20 - Mon, May 11

7:36 am - 9:15 pm

DEN

GMP

22h 39m

2 stops

8:00 am - 5:48 pm

GMP

DEN

24h 48m

2 stops

$1,120Japan Airlines

Mon, Apr 27 - Mon, May 11

7:25 am - 7:50 pm

DEN

GMP

45h 25m

2 stops

8:50 pm - 6:10 pm

GMP

DEN

36h 20m

2 stops

$1,158China Eastern

Thu, Jun 18 - Wed, Jun 24

1:33 pm - 4:20 am

COS

ICN

23h 47m

2 stops

11:30 am - 11:05 am

ICN

COS

38h 35m

2 stops

$1,302United Airlines

Mon, Apr 20 - Mon, Apr 27

5:05 pm - 4:20 am

COS

ICN

20h 15m

2 stops

4:50 pm - 9:24 pm

ICN

COS

19h 34m

2 stops

$1,377United Airlines

Sun, Aug 30 - Thu, Sep 3

American Airlines flights from Colorado to Seoul

Our best American Airlines deals on Colorado to Seoul flight tickets

American Airlines

Sep 21

COS5:39 amColorado Springs

19h 06m

1 stop

ICN3:45 pmIncheon Intl

Nov 17

ICN6:35 pmIncheon Intl

17h 52m

1 stop

COS8:27 pmColorado Springs

$1,068

American Airlines

Sep 21

COS5:39 amColorado Springs

19h 06m

1 stop

ICN3:45 pmIncheon Intl

Nov 17

ICN6:35 pmIncheon Intl

33h 31m

2 stops

COS12:06 pmColorado Springs

$1,073

American Airlines

Apr 14

COS5:41 amColorado Springs

19h 04m

1 stop

ICN3:45 pmIncheon Intl

Jun 2

ICN5:50 pmIncheon Intl

32h 50m

2 stops

COS11:40 amColorado Springs

$1,113

Air Canada flights from Colorado to Seoul

Our best Air Canada deals on Colorado to Seoul flight tickets

Air Canada

Apr 7

DEN7:05 pmDenver Intl

30h 00m

1 stop

ICN4:05 pmIncheon Intl

Apr 21

ICN5:45 pmIncheon Intl

15h 05m

1 stop

DEN5:50 pmDenver Intl

$1,497

Air Canada

Apr 6

DEN7:05 pmDenver Intl

30h 00m

1 stop

ICN4:05 pmIncheon Intl

Sep 6

ICN5:45 pmIncheon Intl

20h 27m

1 stop

DEN11:12 pmDenver Intl

$1,504

Air Canada

Apr 2

DEN8:45 amDenver Intl

16h 20m

1 stop

ICN4:05 pmIncheon Intl

Apr 23

ICN5:45 pmIncheon Intl

16h 42m

1 stop

DEN7:27 pmDenver Intl

$1,507

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Tue 4/28

9:25 pm-8:10 pm

1 stop31h 45m

Incheon Intl

Tue 5/12

7:10 am-9:52 am

2 stops41h 42m

$887

DenverIncheon

DEN - ICN

DENICN

Denver Intl

Fri 4/24

10:29 pm-3:50 pm

1 stop26h 21m

Incheon Intl

Mon 5/11

11:20 am-9:52 am

2 stops37h 32m

$902

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Mon 4/27

7:25 am-11:00 am

2 stops36h 35m

Seoul Gimpo Intl

Tue 5/12

8:50 pm-5:35 pm

2 stops35h 45m

$996

Quickest round-trip

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Mon 9/21

5:39 am-3:45 pm

1 stop19h 06m

Incheon Intl

Tue 11/17

6:35 pm-8:27 pm

1 stop17h 52m

$1,068

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Mon 9/21

5:39 am-3:45 pm

1 stop19h 06m

Incheon Intl

Tue 11/17

6:35 pm-12:06 pm

2 stops33h 31m

$1,073

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Mon 4/20

8:35 pm-9:15 pm

2 stops33h 40m

Seoul Gimpo Intl

Mon 5/11

7:15 pm-5:48 pm

2 stops37h 33m

$1,116

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Mon 4/27

7:36 am-9:15 pm

2 stops22h 39m

Seoul Gimpo Intl

Mon 5/11

8:00 am-5:48 pm

2 stops24h 48m

$1,120

DenverSeoul

DEN - GMP

DENGMP

Denver Intl

Thu 6/18

7:25 am-7:50 pm

2 stops45h 25m

Seoul Gimpo Intl

Wed 6/24

8:50 pm-6:10 pm

2 stops36h 20m

$1,158

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Mon 4/20

1:33 pm-4:20 am

2 stops23h 47m

Incheon Intl

Mon 4/27

11:30 am-11:05 am

2 stops38h 35m

$1,302

Colorado SpringsIncheon

COS - ICN

COSICN

Colorado Springs

Sun 8/30

5:05 pm-4:20 am

2 stops20h 15m

Incheon Intl

Thu 9/3

4:50 pm-9:24 pm

2 stops19h 34m

$1,377

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 October is another great option to travel to Seoul, with average flight prices from Colorado averaging around $1,120.

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 $1,225 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 $920 on momondo.

Can stopping save me money on Colorado to Seoul flights?

You could potentially save up to 25% 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	18h 45m
Direct flights	None

The fastest flight from Colorado to Seoul takes 18h 45m

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?
As of March 2026, there are 10 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
Frontier	PriceFrom $88	Free Cancellation	Rating 5.7 3,015 reviews	Search Frontier flights
United Airlines	PriceFrom $187	Free Cancellation	Rating 7.4 9,489 reviews	Search United Airlines flights
Delta	PriceFrom $474	Free Cancellation	Rating 7.9 8,336 reviews	Search Delta flights
Korean Air	PriceFrom $559	Free Cancellation	Rating 8.4 1,203 reviews	Search Korean Air flights
AIR PREMIA	PriceFrom $585	Free Cancellation	Rating 8.2 83 reviews	Search AIR PREMIA flights
WestJet	PriceFrom $701	Free Cancellation	Rating 7.2 3,303 reviews	Search WestJet flights
Asiana Airlines	PriceFrom $740	Free Cancellation	Rating 8.1 506 reviews	Search Asiana Airlines flights
American Airlines	PriceFrom $816	Free Cancellation	Rating 7.1 11,497 reviews	Search American Airlines flights
Turkish Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 4,281 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $870	Free Cancellation	Rating 7.1 10,843 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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Cheap flights from Colorado to Seoul from $425

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 4/27. 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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American Airlines flights from Colorado to Seoul

Our best American Airlines deals on Colorado to Seoul flight tickets

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Our best Air Canada deals on Colorado to Seoul flight tickets

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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 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

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

Fastest flight time

Direct flights

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.

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

Fly to other destinations from Colorado

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