$404+ Cheap flights from Colorado to Seoul (SEL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEL
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to Seoul with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Colorado to SeoulExplore the most affordable flight options available from Colorado to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Colorado to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Trip.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:46 am -
1 stop21h 34m
Wed 12/97:45 pm -
1 stop19h 20m
Deal found 10/27![Multiple Airlines logo]()
$756
This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:52 pm -
1 stop37h 58m
Thu 12/31:20 pm -
1 stop22h 31m
Deal found 10/29![Multiple Airlines logo]()
$790
This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:06 am -
1 stop39h 14m
Mon 12/71:20 pm -
1 stop22h 25m
Deal found 10/29![Multiple Airlines logo]()
$799
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:50 am -
1 stop38h 30m
Mon 12/77:45 pm -
1 stop20h 23m
Deal found 10/27![Multiple Airlines logo]()
$833
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:36 pm -
2 stops25h 44m
Tue 12/81:20 pm -
1 stop22h 25m
Deal found 10/29![Multiple Airlines logo]()
$876
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:20 pm -
1 stop22h 30m
Mon 12/71:10 pm -
2 stops36h 21m
Deal found 10/25![Multiple Airlines logo]()
$887
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:05 am -
2 stops35h 55m
Mon 11/1612:00 pm -
2 stops48h 25m
Deal found 10/28![China Eastern logo]()
$955
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:34 am -
1 stop19h 11m
Wed 12/26:50 pm -
2 stops34h 19m
Deal found 10/28![American Airlines logo]()
$1,153
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:27 am -
2 stops22h 38m
Wed 12/912:05 pm -
2 stops26h 00m
Deal found 10/29![Japan Airlines logo]()
$1,282
This Justfly.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:09 am -
2 stops22h 56m
Tue 11/177:40 pm -
2 stops37h 59m
Deal found 10/29![Japan Airlines logo]()
$1,312
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:34 am -
1 stop19h 11m
Mon 11/236:50 pm -
1 stop21h 06m
Deal found 10/26![American Airlines logo]()
$1,334
This Justfly.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:11 am -
2 stops34h 34m
Mon 12/77:40 pm -
2 stops38h 33m
Deal found 10/29![Japan Airlines logo]()
$1,336
Best flights from Colorado to SeoulDiscover carefully curated flight deals from Colorado to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Colorado to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:34 am -
1 stop19h 11m
Wed 12/26:50 pm -
2 stops34h 19m
Deal found 10/28![American Airlines logo]()
$1,153
This Cathay Pacific deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/158:50 am -
2 stops37h 00m
Sun 3/77:35 pm -
2 stops39h 56m
Deal found 10/29![Cathay Pacific logo]()
$1,191
This Cathay Pacific deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:51 pm -
2 stops26h 59m
Thu 11/263:00 pm -
2 stops36h 45m
Deal found 10/26![Multiple Airlines logo]()
$1,212
This Turkish Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/228:25 pm -
1 stop30h 15m
Fri 4/3010:10 am -
1 stop47h 10m
Deal found 10/29![Turkish Airlines logo]()
$1,272
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/47:21 am -
2 stops35h 24m
Mon 2/17:40 pm -
2 stops38h 36m
Deal found 10/28![Japan Airlines logo]()
$1,325
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/276:45 am -
1 stop19h 00m
Tue 6/157:40 pm -
1 stop18h 19m
Deal found 10/25![Delta logo]()
$1,464
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/246:30 am -
2 stops46h 20m
Sat 4/312:00 pm -
2 stops47h 34m
Deal found 10/27![China Eastern logo]()
$1,497
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:00 am -
2 stops30h 40m
Wed 12/166:30 pm -
2 stops34h 07m
Deal found 10/25![United Airlines logo]()
$1,762
This Cathay Pacific deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/176:32 pm -
2 stops27h 18m
Tue 3/21:50 pm -
2 stops26h 09m
Deal found 10/26![Cathay Pacific logo]()
$1,191
This Cathay Pacific deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/258:20 pm -
2 stops31h 15m
Sat 4/38:00 am -
2 stops30h 32m
Deal found 10/28![Multiple Airlines logo]()
$1,249
This Cathay Pacific deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/211:50 pm -
2 stops30h 55m
Wed 1/2710:00 am -
2 stops28h 26m
Deal found 10/28![Cathay Pacific logo]()
$1,191
This Cathay Pacific deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/248:20 pm -
2 stops26h 30m
Sat 4/38:00 am -
2 stops30h 32m
Deal found 10/26![Multiple Airlines logo]()
$1,249
This Cathay Pacific deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/158:50 am -
2 stops37h 00m
Mon 3/11:55 am -
2 stops29h 21m
Deal found 10/29![Cathay Pacific logo]()
$1,191
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1112:45 pm -
1 stop35h 35m
Sun 4/257:00 pm -
1 stop19h 28m
Deal found 10/26![Delta logo]()
$1,469
This Gurufare deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:34 am -
2 stops37h 11m
Wed 12/212:05 pm -
2 stops40h 04m
Deal found 10/28![Japan Airlines logo]()
$1,546
This Cathay Pacific deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/168:50 am -
2 stops35h 55m
Sun 4/48:00 am -
2 stops54h 59m
Deal found 10/29![Cathay Pacific logo]()
$1,198
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/221:54 pm -
2 stops34h 51m
Thu 11/266:50 pm -
1 stop33h 16m
Deal found 10/30![American Airlines logo]()
$1,599
This Japan Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/209:00 am -
2 stops34h 40m
Sun 5/212:05 pm -
2 stops20h 43m
Deal found 10/29![Japan Airlines logo]()
$1,565
This Japan Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:21 am -
2 stops23h 44m
Thu 12/178:15 am -
2 stops21h 37m
Deal found 10/26![Multiple Airlines logo]()
$1,460
This Cathay Pacific deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/146:32 pm -
2 stops34h 53m
Sun 3/77:35 pm -
2 stops44h 24m
Deal found 10/27![Cathay Pacific logo]()
$1,248
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/181:16 pm -
2 stops23h 04m
Mon 11/307:40 pm -
2 stops32h 56m
Deal found 10/29![Delta logo]()
$1,662
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/113:15 pm -
2 stops22h 25m
Fri 12/186:00 pm -
2 stops18h 47m
Deal found 10/27![United Airlines logo]()
$1,862
This Japan Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/229:00 am -
2 stops34h 40m
Sat 5/17:15 pm -
2 stops37h 33m
Deal found 10/29![Japan Airlines logo]()
$1,565
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:34 am -
1 stop19h 11m
Fri 12/186:50 pm -
1 stop20h 50m
Deal found 10/27![American Airlines logo]()
$1,782
This Japan Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/256:15 am -
2 stops23h 50m
Sat 2/68:15 am -
2 stops26h 01m
Deal found 10/27![Multiple Airlines logo]()
$1,579
This Japan Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/239:00 am -
2 stops34h 40m
Sun 5/28:00 am -
2 stops26h 58m
Deal found 10/29![Japan Airlines logo]()
$1,675
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/911:58 am -
2 stops36h 47m
Wed 12/166:50 pm -
1 stop19h 24m
Deal found 10/25![American Airlines logo]()
$1,847
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1412:28 pm -
1 stop37h 07m
Wed 11/188:00 pm -
2 stops33h 42m
Deal found 10/29![Delta logo]()
$1,855
This Japan Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/199:00 am -
2 stops34h 40m
Fri 4/3012:05 pm -
2 stops22h 53m
Deal found 10/29![Japan Airlines logo]()
$1,685
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:02 am -
1 stop16h 18m
Fri 12/186:45 pm -
2 stops19h 39m
Deal found 10/27![Delta logo]()
$1,862
Last-minute flights from Colorado to SeoulDiscover last-minute flight deals from Colorado to Seoul. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Seoul. Data last updated October 30, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:09 am -
2 stops22h 56m
Tue 11/177:40 pm -
2 stops37h 59m
Deal found 10/29![Japan Airlines logo]()
$1,312
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:05 am -
2 stops40h 00m
Mon 11/164:20 pm -
2 stops44h 05m
Deal found 10/28![China Eastern logo]()
$955
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:05 am -
2 stops35h 55m
Mon 11/1612:00 pm -
2 stops48h 25m
Deal found 10/28![China Eastern logo]()
$955
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:34 am -
1 stop19h 11m
Mon 11/236:50 pm -
1 stop21h 06m
Deal found 10/26![American Airlines logo]()
$1,334
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:21 am -
1 stop27h 49m
Wed 12/167:45 pm -
1 stop19h 20m
Deal found 10/26![Multiple Airlines logo]()
$912
This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:06 am -
1 stop39h 14m
Mon 12/71:20 pm -
1 stop22h 25m
Deal found 10/29![Multiple Airlines logo]()
$799
This Justfly.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:11 am -
2 stops34h 34m
Mon 12/77:40 pm -
2 stops38h 33m
Deal found 10/29![Japan Airlines logo]()
$1,336
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:20 pm -
1 stop22h 30m
Mon 12/71:10 pm -
2 stops36h 21m
Deal found 10/25![Multiple Airlines logo]()
$887
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:34 am -
1 stop19h 11m
Wed 12/26:50 pm -
2 stops34h 19m
Deal found 10/28![American Airlines logo]()
$1,153
This Gurufare deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:34 am -
2 stops37h 11m
Wed 12/212:05 pm -
2 stops40h 04m
Deal found 10/28![Japan Airlines logo]()
$1,546
This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:52 pm -
1 stop37h 58m
Thu 12/31:20 pm -
1 stop22h 31m
Deal found 10/29![Multiple Airlines logo]()
$790
This FlightHub deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:20 am -
2 stops22h 45m
Thu 12/37:40 pm -
2 stops38h 33m
Deal found 10/29![Japan Airlines logo]()
$1,461
One-way flights from Colorado to SeoulSearch for one-way flight options from Colorado to Seoul. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Colorado to Seoul. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2110:29 pm -
1 stop38h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/279:06 am -
1 stop27h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/610:29 pm -
1 stop25h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:29 pm -
3 stops39h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:09 pm -
2 stops37h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/246:41 am -
2 stops22h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:10 am -
2 stops35h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:55 pm -
3 stops42h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:54 pm -
2 stops32h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$627
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2410:29 pm -
3 stops46h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:31 pm -
3 stops55h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$679
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/61:03 pm -
3 stops52h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$736
Find flight deals from Colorado to Seoul
Keep the following information in mind while searching for Colorado to Seoul flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $756 (Trip.com) |
One-way from | $404 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $1,221 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated October 30, 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
Cheapest round-trip
Quickest round-trip
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Sun 1/24
6:41 am-9:20 pm
2 stops22h 39m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$500
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Sun 1/17
6:30 am-3:05 pm
2 stops40h 35m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$546
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Fri 11/13
10:55 pm-9:20 pm
2 stops54h 25m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$547
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Wed 1/20
6:15 am-12:40 am
2 stops26h 25m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$566
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Sun 4/4
7:25 pm-10:25 pm
2 stops36h 00m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$579
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Thu 4/1
6:30 am-3:10 pm
2 stops41h 40m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$586
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Sun 1/3
2:31 pm-1:15 pm
2 stops30h 44m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$589
DenverIncheon
DEN Denver Intl - ICN Incheon Intl
DENICN
Denver Intl
Mon 11/30
10:29 pm-4:20 pm
1 stop25h 51m
Incheon Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$616
DenverSeoul
DEN Denver Intl - GMP Seoul Gimpo Intl
DENGMP
Denver Intl
Fri 11/13
12:54 pm-1:05 pm
2 stops32h 11m
Seoul Gimpo Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$627
DenverSeoul
DEN Denver Intl - GMP Seoul Gimpo Intl
DENGMP
Denver Intl
Sun 1/24
10:29 pm-12:40 pm
3 stops46h 11m
Seoul Gimpo Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$647
Showing 1-10 of 49 resultsSorted by cheapest first
Best time to book a flight from Colorado to Seoul
Have a flexible travel schedule? Discover the best time to fly to Seoul from Colorado with our price prediction graph.
DEN-ICN
DEN-GMP
COS-ICN
COS-GMP
GJT-ICN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Colorado to Seoul
USCO-SEL
DEN-ICN
DEN-GMP
COS-ICN
COS-GMP
What is the cheapest month to book a flight from Colorado to Seoul?
Currently, February is the cheapest month in which you can book a flight from Colorado to Seoul (average of $1,076). Flying from Colorado to Seoul in December is currently the most expensive (average of $1,610). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Colorado to Seoul?
Airfare is below average for this route at the moment.
Colorado to Seoul flights typically cost between $1,148 and $1,406 in December.The cheapest round-trip price found within the last 5 days was $756 on Multiple Airlines (Dec 2-Dec 9).
How far ahead should I book a flight from Colorado to Seoul?
Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Colorado to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Related info for your journey
Find useful and relevant information for your journey from Colorado to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Alternative routes for Colorado to Seoul
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seoul by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Seoul by cabin class
Find flights from Colorado to Seoul, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Seoul flights
Browse other Colorado and Seoul flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seoul
Explore flights to Seoul departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Colorado to Seoul flights
Consider these flights traveling from Colorado to Seoul.
Top 6 airlines flying from Colorado to Seoul
Discover the top 6 airlines that operate flights from Colorado to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$428 | Average$1,634 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$478 | Average$1,456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$816 | Average$1,317 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$843 | Average$1,236 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$999 | Average$1,337 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,157 | Average$1,522 | FlexibilityNo cancel fee | On-time60% |