$372+ Cheap flights from Colorado to Seoul (SEL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEL
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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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 July 28, 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 July 28, 2026.
This Gotogate deal was found by Cheapflights users on 7/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sun 9/138:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 7/25![WestJet logo]()
$803
This Trip.com deal was found by Cheapflights users on 7/27. 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.
Tue 8/1810:39 pm
DEN
- ICN
1 stop26h 11m
Multiple Airlines
Mon 8/2410:05 pm
ICN
- DEN
1 stop30h 08m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$806
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sat 9/268:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 7/25![WestJet logo]()
$827
This Gotogate deal was found by Cheapflights users on 7/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sun 9/208:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 7/27![WestJet logo]()
$833
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/2612:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Wed 9/27:15 pm
ICN
- DEN
1 stop17h 01m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$848
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/2810:29 pm
DEN
- ICN
2 stops30h 41m
Multiple Airlines
Fri 9/117:15 pm
ICN
- DEN
1 stop16h 05m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$872
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/199:47 am
DEN
- ICN
1 stop20h 53m
Multiple Airlines
Mon 11/27:45 pm
ICN
- DEN
2 stops38h 27m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$879
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Tue 9/2210:44 pm
DEN
- ICN
2 stops31h 56m
Multiple Airlines
Wed 9/307:15 pm
ICN
- DEN
1 stop29h 31m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$881
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/2210:29 pm
DEN
- ICN
1 stop32h 11m
Multiple Airlines
Mon 11/27:45 pm
ICN
- DEN
2 stops38h 27m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$887
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 9/2910:29 pm
DEN
- ICN
1 stop32h 11m
Multiple Airlines
Mon 10/197:15 pm
ICN
- DEN
2 stops32h 34m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$888
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 10/2011:57 am
COS
- ICN
2 stops25h 23m
United Airlines
Tue 11/2412:45 pm
ICN
- COS
2 stops25h 18m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,111
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sun 8/3012:20 pm
COS
- ICN
2 stops35h 40m
United Airlines
Sun 9/135:15 pm
ICN
- COS
2 stops32h 06m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,175
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 July 28, 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 July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 11/1412:02 pm
DEN
- ICN
2 stops41h 18m
Multiple Airlines
Sat 11/217:45 pm
ICN
- DEN
1 stop20h 41m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$999
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 10/2011:57 am
COS
- ICN
2 stops25h 23m
United Airlines
Tue 11/2412:45 pm
ICN
- COS
2 stops25h 18m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,111
This Cathay Pacific deal was found by Cheapflights users on 7/24. 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 8/107:00 am
DEN
- ICN
2 stops45h 05m
Cathay Pacific
Wed 9/308:05 pm
ICN
- DEN
2 stops41h 36m
Cathay Pacific
Deal found 7/24![Cathay Pacific logo]()
$1,202
This Philippine Airlines deal was found by Cheapflights users on 7/24. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am
DEN
- ICN
2 stops45h 15m
Philippine Airlines
Mon 9/147:20 am
ICN
- DEN
2 stops42h 15m
Philippine Airlines
Deal found 7/24![Philippine Airlines logo]()
$1,214
This Japan Airlines deal was found by Cheapflights users on 7/27. 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 1/187:00 am
DEN
- GMP
2 stops23h 05m
Japan Airlines
Sat 1/308:00 am
GMP
- DEN
2 stops23h 16m
Japan Airlines
Deal found 7/27![Japan Airlines logo]()
$1,492
This Delta deal was found by Cheapflights users on 7/24. 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 10/28:15 am
COS
- ICN
1 stop16h 05m
Delta
Fri 10/167:20 pm
ICN
- COS
1 stop18h 12m
Delta
Deal found 7/24![Delta logo]()
$1,556
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 10/216:03 pm
COS
- ICN
2 stops29h 57m
United Airlines
Thu 11/266:30 pm
ICN
- COS
2 stops33h 51m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,111
This Cathay Pacific deal was found by Cheapflights users on 7/26. 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.
Tue 9/294:51 pm
DEN
- ICN
2 stops30h 14m
Multiple Airlines
Wed 10/281:55 am
ICN
- DEN
2 stops35h 42m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,142
This Cathay Pacific deal was found by Cheapflights users on 7/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:18 am
DEN
- ICN
2 stops48h 07m
Cathay Pacific
Sun 10/251:55 am
ICN
- DEN
2 stops34h 46m
Cathay Pacific
Deal found 7/25![Cathay Pacific logo]()
$1,202
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sun 8/3012:20 pm
COS
- ICN
2 stops35h 40m
United Airlines
Sun 9/135:15 pm
ICN
- COS
2 stops32h 06m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,175
This Cathay Pacific deal was found by Cheapflights users on 7/24. 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 10/117:18 am
DEN
- ICN
2 stops44h 47m
Multiple Airlines
Fri 10/231:40 pm
ICN
- DEN
2 stops23h 15m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,220
This Cathay Pacific deal was found by Cheapflights users on 7/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:42 pm
DEN
- ICN
2 stops26h 58m
Cathay Pacific
Fri 10/303:00 pm
ICN
- DEN
2 stops35h 21m
Cathay Pacific
Deal found 7/25![Cathay Pacific logo]()
$1,245
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:30 am
COS
- ICN
2 stops25h 50m
United Airlines
Sun 8/304:50 pm
ICN
- COS
2 stops22h 05m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,211
This Cathay Pacific deal was found by Cheapflights users on 7/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:18 am
DEN
- ICN
2 stops26h 07m
Cathay Pacific
Tue 10/271:55 am
ICN
- DEN
2 stops34h 46m
Cathay Pacific
Deal found 7/25![Cathay Pacific logo]()
$1,245
This EVA Air deal was found by Cheapflights users on 7/28. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:05 pm
DEN
- ICN
2 stops22h 55m
Multiple Airlines
Mon 10/1912:00 pm
ICN
- DEN
3 stops27h 35m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,266
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:20 am
DEN
- GMP
2 stops22h 55m
Japan Airlines
Sun 9/68:00 am
GMP
- DEN
2 stops24h 56m
Japan Airlines
Deal found 7/28![Japan Airlines logo]()
$1,534
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 10/88:00 am
COS
- ICN
1 stop16h 20m
Delta
Thu 11/126:45 pm
ICN
- COS
2 stops19h 45m
Delta
Deal found 7/24![Delta logo]()
$1,561
This Cathay Pacific deal was found by Cheapflights users on 7/23. 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 8/256:26 pm
DEN
- ICN
2 stops28h 39m
Cathay Pacific
Tue 12/227:35 pm
ICN
- DEN
2 stops40h 36m
Cathay Pacific
Deal found 7/23![Cathay Pacific logo]()
$1,270
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 10/81:29 pm
COS
- ICN
2 stops34h 31m
United Airlines
Thu 11/126:00 pm
ICN
- COS
2 stops18h 04m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,275
This Delta deal was found by Cheapflights users on 7/27. 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.
Wed 10/218:17 am
COS
- ICN
1 stop16h 03m
Delta
Thu 11/266:45 pm
ICN
- COS
2 stops19h 58m
Delta
Deal found 7/27![Delta logo]()
$1,561
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:00 am
DEN
- GMP
2 stops23h 15m
Japan Airlines
Wed 9/168:00 am
GMP
- DEN
2 stops29h 41m
Japan Airlines
Deal found 7/27![Japan Airlines logo]()
$1,651
This Cathay Pacific deal was found by Cheapflights users on 7/23. 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.
Fri 10/236:42 pm
DEN
- ICN
2 stops35h 43m
Cathay Pacific
Fri 10/3010:00 am
ICN
- DEN
2 stops26h 41m
Cathay Pacific
Deal found 7/23![Cathay Pacific logo]()
$1,295
This EVA Air deal was found by Cheapflights users on 7/24. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:00 pm
DEN
- ICN
2 stops23h 00m
Multiple Airlines
Thu 10/2212:00 pm
ICN
- DEN
3 stops27h 35m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,435
This Delta deal was found by Cheapflights users on 7/23. 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.
Tue 9/18:10 am
COS
- ICN
1 stop16h 10m
Delta
Wed 9/167:20 pm
ICN
- COS
1 stop18h 05m
Delta
Deal found 7/23![Delta logo]()
$1,755
This Japan Airlines deal was found by Cheapflights users on 7/25. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:09 am
DEN
- GMP
2 stops22h 56m
Japan Airlines
Mon 12/712:05 pm
GMP
- DEN
2 stops22h 39m
Japan Airlines
Deal found 7/25![Japan Airlines logo]()
$1,767
This Japan Airlines deal was found by Cheapflights users on 7/25. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:00 am
COS
- GMP
2 stops22h 15m
Multiple Airlines
Sun 9/137:15 pm
GMP
- COS
2 stops31h 50m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,680
This Japan Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 8/187:00 am
DEN
- GMP
2 stops23h 15m
Japan Airlines
Sat 1/98:00 am
GMP
- DEN
2 stops23h 16m
Japan Airlines
Deal found 7/27![Japan Airlines logo]()
$1,853
This Japan Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 8/197:00 am
DEN
- GMP
2 stops23h 15m
Japan Airlines
Sat 1/98:00 am
GMP
- DEN
2 stops23h 16m
Japan Airlines
Deal found 7/26![Japan Airlines logo]()
$1,853
This Japan Airlines deal was found by Cheapflights users on 7/23. 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 9/18:00 am
COS
- GMP
2 stops22h 15m
Multiple Airlines
Wed 9/167:15 pm
GMP
- COS
2 stops36h 28m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,879
This Japan Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 8/217:00 am
DEN
- GMP
2 stops23h 15m
Japan Airlines
Fri 1/87:40 pm
GMP
- DEN
2 stops35h 36m
Japan Airlines
Deal found 7/27![Japan Airlines logo]()
$1,903
Last-minute flights from Colorado to SeoulDiscover last-minute flight deals from Colorado to Seoul. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Seoul. Data last updated July 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/1010:13 pm
DEN
- ICN
2 stops56h 27m
Multiple Airlines
Wed 9/307:15 pm
ICN
- DEN
1 stop29h 26m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$948
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/144:20 pm
DEN
- ICN
1 stop21h 10m
Multiple Airlines
Mon 8/3110:05 pm
ICN
- DEN
1 stop17h 39m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$946
This Trip.com deal was found by Cheapflights users on 7/27. 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.
Tue 8/1810:39 pm
DEN
- ICN
1 stop26h 11m
Multiple Airlines
Mon 8/2410:05 pm
ICN
- DEN
1 stop30h 08m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$806
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:30 am
COS
- ICN
2 stops25h 50m
United Airlines
Sun 8/304:50 pm
ICN
- COS
2 stops22h 05m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,211
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Mon 8/2412:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Mon 8/317:20 am
ICN
- DEN
2 stops41h 43m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$969
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:30 pm
DEN
- GMP
2 stops38h 05m
Multiple Airlines
Tue 9/13:45 pm
GMP
- DEN
3 stops34h 22m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,239
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/2612:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Wed 9/27:15 pm
ICN
- DEN
1 stop17h 01m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$848
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/2810:29 pm
DEN
- ICN
2 stops30h 41m
Multiple Airlines
Fri 9/117:15 pm
ICN
- DEN
1 stop16h 05m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$872
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sun 8/3012:20 pm
COS
- ICN
2 stops35h 40m
United Airlines
Sun 9/135:15 pm
ICN
- COS
2 stops32h 06m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,175
This Gotogate deal was found by Cheapflights users on 7/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sun 9/138:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 7/25![WestJet logo]()
$803
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sat 9/268:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 7/25![WestJet logo]()
$827
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Mon 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Sat 9/266:00 pm
ICN
- DEN
2 stops36h 00m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$919
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 July 28, 2026.
Search for one-way flight options from Colorado to Seoul. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Justfly.com deal was found by Cheapflights users on 7/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Deal found 7/26![WestJet logo]()
$372
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Deal found 7/27![WestJet logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sat 8/2910:39 pm
DEN
- ICN
2 stops54h 41m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/1710:39 pm
DEN
- ICN
2 stops56h 01m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sat 8/2910:39 pm
DEN
- GMP
3 stops50h 36m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 9/1612:42 pm
DEN
- ICN
3 stops49h 48m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 9/1010:44 pm
DEN
- ICN
2 stops31h 56m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 10/2110:29 pm
DEN
- ICN
2 stops56h 11m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/2012:47 pm
DEN
- ICN
2 stops41h 53m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/1710:29 pm
DEN
- GMP
3 stops50h 46m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/209:06 pm
DEN
- GMP
3 stops46h 24m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/1510:44 pm
DEN
- GMP
3 stops50h 31m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$572
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $803 (Gotogate) |
One-way from | $372 (Justfly.com) |
Popular in | December |
Cheapest in | November |
Average price | $1,198 |
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 2,558,603 searches. Data last updated July 28, 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
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Sat 11/14
12:02 pm-9:20 pm
2 stops41h 18m
Incheon Intl
Sat 11/21
7:45 pm-12:26 am
1 stop20h 41m
$999
Colorado SpringsIncheon
COS - ICN
COSICN
Colorado Springs
Tue 10/20
11:57 am-4:20 am
2 stops25h 23m
Incheon Intl
Tue 11/24
12:45 pm-10:03 pm
2 stops25h 18m
$1,111
Colorado SpringsIncheon
COS - ICN
COSICN
Colorado Springs
Wed 10/21
6:03 pm-3:00 pm
2 stops29h 57m
Incheon Intl
Thu 11/26
6:30 pm-12:21 pm
2 stops33h 51m
$1,111
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Tue 9/29
4:51 pm-2:05 pm
2 stops30h 14m
Incheon Intl
Wed 10/28
1:55 am-10:37 pm
2 stops35h 42m
$1,142
Colorado SpringsIncheon
COS - ICN
COSICN
Colorado Springs
Sun 8/30
12:20 pm-3:00 pm
2 stops35h 40m
Incheon Intl
Sun 9/13
5:15 pm-10:21 am
2 stops32h 06m
$1,175
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Mon 8/10
7:00 am-7:05 pm
2 stops45h 05m
Incheon Intl
Wed 9/30
8:05 pm-10:41 pm
2 stops41h 36m
$1,202
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Sun 10/18
7:18 am-10:25 pm
2 stops48h 07m
Incheon Intl
Sun 10/25
1:55 am-9:41 pm
2 stops34h 46m
$1,202
Colorado SpringsIncheon
COS - ICN
COSICN
Colorado Springs
Sun 8/23
11:30 am-4:20 am
2 stops25h 50m
Incheon Intl
Sun 8/30
4:50 pm-11:55 pm
2 stops22h 05m
$1,211
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Fri 9/11
7:00 am-7:15 pm
2 stops45h 15m
Incheon Intl
Mon 9/14
7:20 am-10:35 am
2 stops42h 15m
$1,214
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Sun 10/11
7:18 am-7:05 pm
2 stops44h 47m
Incheon Intl
Fri 10/23
1:40 pm-9:55 pm
2 stops23h 15m
$1,220
Showing 1-10 of 44 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
COS-ICN
DEN-GMP
COS-GMP
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
COS-ICN
DEN-GMP
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 $1,038). Flying from Colorado to Seoul in December is currently the most expensive (average of $1,597). 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 $919 and $1,555 in August.The cheapest round-trip price found within the last 5 days was $803 on WestJet (Aug 31-Sep 13).
How far ahead should I book a flight from Colorado to Seoul?
Booking 16 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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Top destinations
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 July 28, 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 July 28, 2026.
Colorado to Seoul flights
Consider these flights traveling from Colorado to Seoul.
Top 8 airlines flying from Colorado to Seoul
Discover the top 8 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 2,558,603 searches. Data last updated July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$187 | Average$1,534 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$478 | Average$998 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$519 | Average$1,089 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$608 | Average$615 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$816 | Average$1,506 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$906 | Average$1,163 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,035 | Average$1,335 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,157 | Average$1,522 | FlexibilityNo cancel fee | On-time60% |