$376+ 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
Jul 14 — Jul 211
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to Seoul with Cheapflights
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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 June 14, 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 June 14, 2026.
This Trip.com deal was found by Cheapflights users on 6/12. 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 9/2210:29 pm
DEN
- ICN
1 stop26h 21m
Multiple Airlines
Tue 10/131:00 pm
ICN
- DEN
1 stop16h 37m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$869
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/3012:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Thu 9/103:05 pm
ICN
- DEN
2 stops56h 26m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$871
This FlightHub deal was found by Cheapflights users on 6/9. 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.
Sat 8/2912:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sun 9/208:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 6/9![WestJet logo]()
$872
This WestJet deal was found by Cheapflights users on 6/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Sun 9/138:45 pm
ICN
- DEN
1 stop29h 35m
WestJet
Deal found 6/9![WestJet logo]()
$899
This Trip.com deal was found by Cheapflights users on 6/11. 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 8/3112:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Wed 9/303:05 pm
ICN
- DEN
2 stops22h 54m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$902
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/2912:15 pm
DEN
- ICN
1 stop15h 30m
Multiple Airlines
Tue 9/157:10 am
ICN
- DEN
2 stops29h 20m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$941
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 11/412:02 pm
DEN
- ICN
1 stop25h 08m
Multiple Airlines
Sat 11/141:20 pm
ICN
- DEN
1 stop20h 52m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$946
This Ovago deal was found by Cheapflights users on 6/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:30 am
DEN
- ICN
2 stops37h 25m
China Eastern
Wed 11/118:55 am
ICN
- DEN
2 stops25h 15m
China Eastern
Deal found 6/14![China Eastern logo]()
$977
This BusinessClass deal was found by Cheapflights users on 6/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:30 am
DEN
- ICN
2 stops38h 25m
China Eastern
Thu 12/38:55 am
ICN
- DEN
2 stops25h 15m
China Eastern
Deal found 6/11![China Eastern logo]()
$979
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Sun 8/307:41 am
DEN
- GMP
2 stops36h 19m
China Eastern
Thu 9/108:50 pm
GMP
- DEN
2 stops36h 20m
China Eastern
Deal found 6/11![China Eastern logo]()
$998
This American Airlines deal was found by Cheapflights users on 6/13. 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.
Thu 9/35:40 am
COS
- ICN
1 stop19h 05m
American Airlines
Mon 9/145:50 pm
ICN
- COS
1 stop20h 05m
American Airlines
Deal found 6/13![American Airlines logo]()
$1,116
This American Airlines deal was found by Cheapflights users on 6/13. 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 9/25:40 am
COS
- ICN
1 stop19h 05m
American Airlines
Sat 9/125:50 pm
ICN
- COS
1 stop35h 53m
American Airlines
Deal found 6/13![American Airlines logo]()
$1,122
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 June 14, 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 June 14, 2026.
This China Eastern deal was found by Cheapflights users on 6/12. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:15 am
DEN
- ICN
2 stops40h 55m
China Eastern
Tue 10/136:25 pm
ICN
- DEN
2 stops38h 45m
China Eastern
Deal found 6/12![China Eastern logo]()
$1,063
This American Airlines deal was found by Cheapflights users on 6/13. 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.
Thu 9/35:40 am
COS
- ICN
1 stop19h 05m
American Airlines
Mon 9/145:50 pm
ICN
- COS
1 stop20h 05m
American Airlines
Deal found 6/13![American Airlines logo]()
$1,116
This Philippine Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 10/76:43 am
DEN
- ICN
2 stops32h 17m
Philippine Airlines
Sat 10/248:30 pm
ICN
- DEN
2 stops41h 59m
Philippine Airlines
Deal found 6/13![Philippine Airlines logo]()
$1,206
This Japan Airlines deal was found by Cheapflights users on 6/12. 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 12/77:00 am
DEN
- GMP
2 stops23h 05m
Japan Airlines
Mon 12/1412:05 pm
GMP
- DEN
2 stops19h 49m
Japan Airlines
Deal found 6/12![Japan Airlines logo]()
$1,366
This Cathay Pacific deal was found by Cheapflights users on 6/9. 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 8/316:26 pm
DEN
- ICN
2 stops27h 14m
Cathay Pacific
Tue 9/228:00 am
ICN
- DEN
2 stops29h 34m
Cathay Pacific
Deal found 6/9![Cathay Pacific logo]()
$1,367
This Japan Airlines deal was found by Cheapflights users on 6/11. 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 11/256:00 am
DEN
- GMP
2 stops24h 05m
Multiple Airlines
Wed 12/912:05 pm
GMP
- DEN
2 stops22h 39m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,431
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:06 pm
DEN
- ICN
2 stops30h 24m
Alaska Airlines
Wed 9/167:35 pm
ICN
- DEN
2 stops43h 09m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$1,481
This Delta deal was found by Cheapflights users on 6/10. 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 8/16:16 pm
COS
- ICN
2 stops55h 34m
Delta
Mon 8/107:00 pm
ICN
- COS
2 stops37h 36m
Delta
Deal found 6/10![Delta logo]()
$1,894
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/243:02 pm
COS
- ICN
2 stops22h 18m
United Airlines
Fri 7/3111:30 am
ICN
- COS
2 stops25h 36m
United Airlines
Deal found 6/10![United Airlines logo]()
$1,959
This China Eastern deal was found by Cheapflights users on 6/12. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:15 am
DEN
- ICN
2 stops40h 55m
China Eastern
Mon 10/124:20 pm
ICN
- DEN
2 stops40h 50m
China Eastern
Deal found 6/12![China Eastern logo]()
$1,063
This Air Canada deal was found by Cheapflights users on 6/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:30 am
COS
- ICN
2 stops19h 35m
Air Canada
Mon 9/147:05 pm
ICN
- COS
2 stops41h 51m
Air Canada
Deal found 6/13![Air Canada logo]()
$2,127
This Philippine Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/166:11 pm
DEN
- ICN
2 stops44h 49m
Philippine Airlines
Mon 9/217:20 am
ICN
- DEN
2 stops42h 15m
Philippine Airlines
Deal found 6/10![Philippine Airlines logo]()
$1,206
This American Airlines deal was found by Cheapflights users on 6/11. 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 9/65:40 am
COS
- ICN
1 stop19h 05m
American Airlines
Sat 9/125:50 pm
ICN
- COS
2 stops33h 58m
American Airlines
Deal found 6/11![American Airlines logo]()
$1,297
This Philippine Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 9/67:00 am
DEN
- ICN
2 stops45h 15m
Philippine Airlines
Sat 9/128:30 pm
ICN
- DEN
2 stops53h 05m
Philippine Airlines
Deal found 6/14![Philippine Airlines logo]()
$1,206
This Cathay Pacific deal was found by Cheapflights users on 6/12. 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 9/247:00 am
DEN
- ICN
2 stops26h 25m
Cathay Pacific
Tue 10/131:55 am
ICN
- DEN
2 stops34h 43m
Cathay Pacific
Deal found 6/12![Cathay Pacific logo]()
$1,368
This Japan Airlines deal was found by Cheapflights users on 6/12. 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 12/77:00 am
DEN
- GMP
2 stops23h 05m
Japan Airlines
Tue 12/157:40 pm
GMP
- DEN
2 stops35h 36m
Japan Airlines
Deal found 6/12![Japan Airlines logo]()
$1,376
This China Eastern deal was found by Cheapflights users on 6/12. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:15 am
DEN
- ICN
2 stops40h 55m
China Eastern
Sat 10/104:15 pm
ICN
- DEN
2 stops45h 28m
China Eastern
Deal found 6/12![China Eastern logo]()
$1,308
This American Airlines deal was found by Cheapflights users on 6/14. 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 9/65:06 am
DEN
- GMP
2 stops21h 49m
Multiple Airlines
Sat 9/1212:05 pm
GMP
- DEN
2 stops20h 30m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$1,470
This Philippine Airlines deal was found by Cheapflights users on 6/14. 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 9/411:40 am
DEN
- ICN
2 stops40h 35m
Philippine Airlines
Sun 9/137:20 am
ICN
- DEN
2 stops42h 15m
Philippine Airlines
Deal found 6/14![Philippine Airlines logo]()
$1,236
This Cathay Pacific deal was found by Cheapflights users on 6/9. 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 8/277:00 am
DEN
- ICN
2 stops38h 40m
Cathay Pacific
Sat 9/198:05 pm
ICN
- DEN
2 stops29h 30m
Cathay Pacific
Deal found 6/9![Cathay Pacific logo]()
$1,417
This China Eastern deal was found by Cheapflights users on 6/9. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:41 am
DEN
- GMP
2 stops36h 19m
China Eastern
Wed 9/168:50 pm
GMP
- DEN
2 stops36h 27m
China Eastern
Deal found 6/9![China Eastern logo]()
$1,318
This Philippine Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 10/1411:58 am
DEN
- ICN
2 stops51h 02m
Philippine Airlines
Fri 10/237:20 am
ICN
- DEN
2 stops43h 08m
Philippine Airlines
Deal found 6/12![Philippine Airlines logo]()
$1,236
This BusinessClass deal was found by Cheapflights users on 6/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:37 pm
COS
- ICN
2 stops36h 08m
Japan Airlines
Sat 9/125:50 pm
ICN
- COS
2 stops33h 58m
Japan Airlines
Deal found 6/11![Japan Airlines logo]()
$1,499
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 9/49:05 am
DEN
- GMP
2 stops21h 10m
Japan Airlines
Sun 9/1312:05 pm
GMP
- DEN
2 stops25h 36m
Japan Airlines
Deal found 6/14![Japan Airlines logo]()
$1,508
This Delta deal was found by Cheapflights users on 6/13. 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 7/128:10 am
COS
- ICN
1 stop16h 10m
Delta
Sun 7/197:20 pm
ICN
- COS
1 stop18h 21m
Delta
Deal found 6/13![Delta logo]()
$1,955
This United Airlines deal was found by Cheapflights users on 6/13. 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 7/1210:23 am
COS
- ICN
2 stops26h 57m
United Airlines
Sun 7/1911:30 am
ICN
- COS
2 stops21h 22m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,959
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 10/136:43 am
DEN
- GMP
2 stops23h 32m
Multiple Airlines
Tue 10/278:00 am
GMP
- DEN
2 stops24h 49m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$1,815
This Japan Airlines deal was found by Cheapflights users on 6/11. 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 9/109:10 am
DEN
- GMP
2 stops21h 05m
Japan Airlines
Mon 9/148:00 am
GMP
- DEN
2 stops29h 41m
Japan Airlines
Deal found 6/11![Japan Airlines logo]()
$1,515
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/245:35 am
COS
- ICN
1 stop19h 10m
American Airlines
Fri 7/315:50 pm
ICN
- COS
1 stop19h 33m
American Airlines
Deal found 6/9![American Airlines logo]()
$1,861
This Japan Airlines deal was found by Cheapflights users on 6/10. 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 9/177:26 am
DEN
- GMP
2 stops22h 49m
Multiple Airlines
Thu 10/18:00 am
GMP
- DEN
2 stops24h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,841
Last-minute flights from Colorado to SeoulDiscover last-minute flight deals from Colorado to Seoul. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Seoul. Data last updated June 14, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 6/12. 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.
Sat 7/47:45 pm
DEN
- ICN
2 stops30h 20m
Air Canada
Sat 7/185:45 pm
ICN
- DEN
2 stops29h 45m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,068
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Sun 7/57:30 am
DEN
- ICN
2 stops40h 50m
China Eastern
Sun 7/124:15 pm
ICN
- DEN
2 stops41h 03m
China Eastern
Deal found 6/11![China Eastern logo]()
$998
This Gotogate deal was found by Cheapflights users on 6/11. 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 7/57:18 pm
DEN
- ICN
2 stops29h 47m
Air Canada
Sun 7/125:45 pm
ICN
- DEN
2 stops29h 45m
Air Canada
Deal found 6/11![Air Canada logo]()
$1,051
This FlightHub deal was found by Cheapflights users on 6/13. 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 7/86:05 pm
DEN
- ICN
1 stop32h 25m
Air Canada
Sat 7/185:45 pm
ICN
- DEN
1 stop20h 27m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,060
This FlightHub deal was found by Cheapflights users on 6/9. 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 7/97:45 pm
DEN
- ICN
1 stop29h 20m
Air Canada
Thu 7/165:45 pm
ICN
- DEN
1 stop20h 27m
Air Canada
Deal found 6/9![Air Canada logo]()
$1,052
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Sun 7/1211:23 am
DEN
- ICN
2 stops37h 42m
Air Canada
Sun 7/197:05 pm
ICN
- DEN
1 stop40h 17m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,050
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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.
Tue 7/147:22 am
DEN
- GMP
2 stops22h 53m
Japan Airlines
Tue 7/218:00 am
GMP
- DEN
2 stops24h 40m
Japan Airlines
Deal found 6/13![Japan Airlines logo]()
$1,710
This FlightHub deal was found by Cheapflights users on 6/10. 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 7/1511:23 am
DEN
- ICN
2 stops37h 42m
Air Canada
Mon 7/205:45 pm
ICN
- DEN
2 stops31h 41m
Air Canada
Deal found 6/10![Air Canada logo]()
$1,042
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:00 am
COS
- ICN
2 stops19h 05m
Multiple Airlines
Sun 8/165:45 pm
ICN
- COS
2 stops17h 09m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,534
This Justfly.com deal was found by Cheapflights users on 6/11. 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.
Fri 7/1711:23 am
DEN
- ICN
2 stops37h 42m
Air Canada
Mon 7/205:45 pm
ICN
- DEN
2 stops39h 17m
Air Canada
Deal found 6/11![Air Canada logo]()
$1,018
This Air Canada deal was found by Cheapflights users on 6/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:10 am
DEN
- ICN
1 stop15h 55m
Air Canada
Tue 7/285:45 pm
ICN
- DEN
1 stop14h 28m
Air Canada
Deal found 6/9![Air Canada logo]()
$1,031
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/245:35 am
COS
- ICN
1 stop19h 10m
American Airlines
Fri 7/315:50 pm
ICN
- COS
1 stop19h 33m
American Airlines
Deal found 6/11![American Airlines logo]()
$1,662
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 June 14, 2026.
Search for one-way flight options from Colorado to Seoul. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This Justfly.com deal was found by Cheapflights users on 6/12. 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 6/12![WestJet logo]()
$376
This Justfly.com deal was found by Cheapflights users on 6/10. 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 8/3012:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Deal found 6/10![WestJet logo]()
$377
This Trip.com deal was found by Cheapflights users on 6/13. 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 9/28:44 am
DEN
- ICN
1 stop28h 46m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$477
This Justfly.com deal was found by Cheapflights users on 6/10. 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.
Thu 9/1712:15 pm
DEN
- ICN
1 stop15h 30m
WestJet
Deal found 6/10![WestJet logo]()
$501
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 9/17:13 am
DEN
- ICN
2 stops47h 27m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$503
This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:30 am
DEN
- ICN
2 stops37h 25m
China Eastern
Deal found 6/11![China Eastern logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/137:00 am
DEN
- ICN
3 stops47h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$525
This BusinessClass deal was found by Cheapflights users on 6/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:31 am
DEN
- ICN
2 stops42h 54m
China Eastern
Deal found 6/13![China Eastern logo]()
$528
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/259:10 am
DEN
- ICN
1 stop15h 55m
Air Canada
Deal found 6/10![Air Canada logo]()
$529
This FlightHub deal was found by Cheapflights users on 6/13. 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.
Tue 9/17:41 am
DEN
- GMP
2 stops36h 19m
China Eastern
Deal found 6/13![China Eastern logo]()
$575
This China Eastern deal was found by Cheapflights users on 6/13. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:41 am
DEN
- GMP
2 stops45h 09m
China Eastern
Deal found 6/13![China Eastern logo]()
$612
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 9/129:15 am
DEN
- GMP
3 stops46h 10m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$654
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 June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $869 (Trip.com) |
One-way from | $376 (Justfly.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,383 |
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 June 14, 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 9/19
7:15 am-3:10 pm
2 stops40h 55m
Incheon Intl
Tue 10/13
6:25 pm-6:10 pm
2 stops38h 45m
$1,063
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Sat 9/19
7:15 am-3:10 pm
2 stops40h 55m
Incheon Intl
Mon 10/12
4:20 pm-6:10 pm
2 stops40h 50m
$1,063
Colorado SpringsIncheon
COS - ICN
COSICN
Colorado Springs
Thu 9/3
5:40 am-3:45 pm
1 stop19h 05m
Incheon Intl
Mon 9/14
5:50 pm-10:55 pm
1 stop20h 05m
$1,116
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Wed 10/7
6:43 am-6:00 am
2 stops32h 17m
Incheon Intl
Sat 10/24
8:30 pm-11:29 pm
2 stops41h 59m
$1,206
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Wed 9/16
6:11 pm-6:00 am
2 stops44h 49m
Incheon Intl
Mon 9/21
7:20 am-10:35 am
2 stops42h 15m
$1,206
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Sun 9/6
7:00 am-7:15 pm
2 stops45h 15m
Incheon Intl
Sat 9/12
8:30 pm-10:35 am
2 stops53h 05m
$1,206
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Fri 9/4
11:40 am-7:15 pm
2 stops40h 35m
Incheon Intl
Sun 9/13
7:20 am-10:35 am
2 stops42h 15m
$1,236
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Wed 10/14
11:58 am-6:00 am
2 stops51h 02m
Incheon Intl
Fri 10/23
7:20 am-11:28 am
2 stops43h 08m
$1,236
Colorado SpringsIncheon
COS - ICN
COSICN
Colorado Springs
Sun 9/6
5:40 am-3:45 pm
1 stop19h 05m
Incheon Intl
Sat 9/12
5:50 pm-12:48 pm
2 stops33h 58m
$1,297
DenverIncheon
DEN - ICN
DENICN
Denver Intl
Fri 9/25
7:15 am-3:10 pm
2 stops40h 55m
Incheon Intl
Sat 10/10
4:15 pm-10:43 pm
2 stops45h 28m
$1,308
Showing 1-10 of 48 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
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
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 $59). Flying from Colorado to Seoul in November is currently the most expensive (average of $866). 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?
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Seoul flight routes
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 June 14, 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 June 14, 2026.
Colorado to Seoul flights
Consider these flights traveling from Colorado to Seoul.
Top 9 airlines flying from Colorado to Seoul
Discover the top 9 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 June 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$187 | Average$1,461 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$483 | Average$902 | 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$762 | Average$1,515 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$816 | Average$1,506 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$912 | Average$1,148 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,052 | Average$1,337 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,364 | Average$1,546 | FlexibilityNo cancel fee | On-time60% |