$369+ Cheap flights from Colorado to Portugal
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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
May 15 — May 221
Round-trip
1 adult, Economy
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Cheapest flights from Colorado to PortugalExplore the most affordable flight options available from Colorado to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
Explore the most affordable flight options available from Colorado to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
This FlightHub deal was found by Cheapflights users on 4/12. 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.
Tue 4/218:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Mon 4/274:50 pm
OPO
- DEN
1 stop32h 35m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$682
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Fri 9/184:45 pm
OPO
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 4/14![Turkish Airlines logo]()
$708
This FlightHub deal was found by Cheapflights users on 4/10. 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.
Tue 8/188:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Mon 8/3110:40 am
OPO
- DEN
1 stop38h 45m
Turkish Airlines
Deal found 4/10![Turkish Airlines logo]()
$715
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 9/228:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Tue 10/65:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$715
This KAYAK deal was found by Cheapflights users on 4/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/284:20 pm
DEN
- OPO
1 stop13h 30m
Lufthansa
Thu 1/71:40 pm
OPO
- DEN
1 stop31h 55m
Lufthansa
Deal found 4/12![Lufthansa logo]()
$723
This CheapOair deal was found by Cheapflights users on 4/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Sat 9/265:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 4/10![Turkish Airlines logo]()
$723
This Turkish Airlines deal was found by Cheapflights users on 4/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:25 pm
DEN
- LIS
1 stop36h 00m
Turkish Airlines
Wed 5/64:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 4/11![Turkish Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:55 pm
DEN
- OPO
2 stops32h 35m
United Airlines
Wed 11/116:00 am
OPO
- DEN
1 stop17h 00m
United Airlines
Deal found 4/12![United Airlines logo]()
$729
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 4/288:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Tue 5/55:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$729
This oojo deal was found by Cheapflights users on 4/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:20 pm
DEN
- LIS
1 stop32h 20m
Turkish Airlines
Sat 11/75:55 am
LIS
- DEN
1 stop19h 40m
Turkish Airlines
Deal found 4/13![Turkish Airlines logo]()
$730
This KAYAK deal was found by Cheapflights users on 4/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/275:45 pm
DEN
- OPO
1 stop14h 30m
Lufthansa
Thu 1/71:40 pm
OPO
- DEN
1 stop31h 55m
Lufthansa
Deal found 4/12![Lufthansa logo]()
$735
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Thu 10/226:10 am
OPO
- DEN
1 stop19h 15m
Turkish Airlines
Deal found 4/14![Turkish Airlines logo]()
$745
Best flights from Colorado to PortugalDiscover carefully curated flight deals from Colorado to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
Discover carefully curated flight deals from Colorado to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:25 am
DEN
- OPO
1 stop12h 35m
United Airlines
Tue 10/1312:15 pm
OPO
- DEN
2 stops32h 58m
United Airlines
Deal found 4/11![United Airlines logo]()
$817
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/55:13 pm
COS
- LIS
2 stops17h 42m
American Airlines
Wed 5/208:55 am
LIS
- COS
2 stops21h 37m
American Airlines
Deal found 4/15![American Airlines logo]()
$821
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:20 pm
DEN
- LIS
2 stops18h 15m
Delta
Thu 5/145:00 am
LIS
- DEN
2 stops21h 15m
Delta
Deal found 4/12![Delta logo]()
$889
This KLM deal was found by Cheapflights users on 4/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:45 am
DEN
- OPO
2 stops16h 45m
KLM
Sun 9/274:25 pm
OPO
- DEN
1 stop30h 15m
KLM
Deal found 4/12![KLM logo]()
$906
This Turkish Airlines deal was found by Cheapflights users on 4/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:15 pm
DEN
- LIS
2 stops25h 30m
Multiple Airlines
Sat 10/105:55 am
LIS
- DEN
1 stop19h 30m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$910
This Scandinavian Airlines deal was found by Cheapflights users on 4/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:20 pm
DEN
- LIS
2 stops20h 15m
Scandinavian Airlines
Wed 9/307:15 am
LIS
- DEN
2 stops22h 34m
Scandinavian Airlines
Deal found 4/10![Scandinavian Airlines logo]()
$939
This British Airways deal was found by Cheapflights users on 4/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:40 pm
DEN
- FAO
1 stop32h 40m
British Airways
Sun 10/412:15 pm
FAO
- DEN
1 stop35h 10m
British Airways
Deal found 4/14![British Airways logo]()
$1,158
This BusinessClass deal was found by Cheapflights users on 4/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:15 pm
DEN
- PDL
2 stops38h 50m
WestJet
Sat 9/1911:30 am
PDL
- DEN
2 stops29h 50m
WestJet
Deal found 4/10![WestJet logo]()
$1,424
This Delta deal was found by Cheapflights users on 4/13. 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 10/47:05 am
DEN
- LIS
2 stops21h 10m
Delta
Fri 10/2312:45 pm
LIS
- DEN
2 stops17h 14m
Delta
Deal found 4/13![Delta logo]()
$895
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Tue 8/186:00 am
DEN
- OPO
2 stops18h 00m
United Airlines
Mon 8/319:00 am
OPO
- DEN
2 stops20h 13m
United Airlines
Deal found 4/10![United Airlines logo]()
$906
This KLM deal was found by Cheapflights users on 4/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:55 am
COS
- LIS
2 stops19h 40m
KLM
Sun 5/177:45 pm
LIS
- COS
2 stops32h 42m
KLM
Deal found 4/12![KLM logo]()
$936
This Delta deal was found by Cheapflights users on 4/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:20 pm
DEN
- OPO
1 stop15h 10m
Delta
Sun 9/279:25 am
OPO
- DEN
2 stops21h 05m
Delta
Deal found 4/14![Delta logo]()
$899
This KLM deal was found by Cheapflights users on 4/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:59 pm
DEN
- OPO
1 stop27h 21m
KLM
Sat 10/35:55 am
OPO
- DEN
1 stop16h 45m
KLM
Deal found 4/10![KLM logo]()
$964
This United Airlines deal was found by Cheapflights users on 4/15. 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 9/212:10 pm
COS
- LIS
2 stops38h 10m
United Airlines
Wed 9/911:25 am
LIS
- COS
2 stops32h 51m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,001
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:20 pm
DEN
- LIS
2 stops19h 35m
Delta
Wed 10/145:00 am
LIS
- DEN
2 stops19h 35m
Delta
Deal found 4/12![Delta logo]()
$940
This British Airways deal was found by Cheapflights users on 4/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:13 pm
DEN
- FAO
2 stops18h 52m
British Airways
Sun 10/117:10 pm
FAO
- DEN
1 stop28h 15m
British Airways
Deal found 4/15![British Airways logo]()
$1,162
This Air Canada deal was found by Cheapflights users on 4/15. 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 8/1910:29 am
COS
- LIS
3 stops17h 36m
Multiple Airlines
Wed 8/2611:25 am
LIS
- COS
2 stops17h 39m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,163
This KLM deal was found by Cheapflights users on 4/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:40 pm
DEN
- FAO
2 stops33h 50m
KLM
Sun 10/116:55 pm
FAO
- DEN
2 stops30h 09m
KLM
Deal found 4/11![KLM logo]()
$1,010
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:48 am
DEN
- TER
3 stops21h 02m
Air Canada
Sun 10/187:10 am
TER
- DEN
3 stops22h 08m
Air Canada
Deal found 4/14![Air Canada logo]()
$2,499
This Delta deal was found by Cheapflights users on 4/15. 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 5/99:12 am
DEN
- LIS
2 stops19h 03m
Delta
Sun 5/175:35 am
LIS
- DEN
1 stop17h 05m
Delta
Deal found 4/15![Delta logo]()
$943
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Wed 9/237:45 am
DEN
- LIS
2 stops20h 15m
United Airlines
Sat 10/1011:25 am
LIS
- DEN
3 stops31h 07m
United Airlines
Deal found 4/10![United Airlines logo]()
$1,052
This FlightHub deal was found by Cheapflights users on 4/11. 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.
Fri 10/212:45 pm
DEN
- PIX
2 stops14h 25m
Multiple Airlines
Fri 10/99:25 am
PIX
- DEN
2 stops34h 53m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$1,163
This Booking.com deal was found by Cheapflights users on 4/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:19 pm
DEN
- FNC
2 stops40h 16m
British Airways
Fri 5/151:10 pm
FNC
- DEN
1 stop34h 10m
British Airways
Deal found 4/10![British Airways logo]()
$1,166
This KLM deal was found by Cheapflights users on 4/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:43 am
DEN
- LIS
2 stops17h 12m
KLM
Sun 5/35:00 am
LIS
- DEN
2 stops17h 36m
KLM
Deal found 4/12![KLM logo]()
$1,010
This Delta deal was found by Cheapflights users on 4/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:08 pm
DEN
- OPO
2 stops19h 22m
Delta
Sun 5/245:00 am
OPO
- DEN
2 stops20h 47m
Delta
Deal found 4/11![Delta logo]()
$946
This Air Canada deal was found by Cheapflights users on 4/15. 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 9/211:31 am
COS
- LIS
3 stops16h 34m
Multiple Airlines
Wed 9/911:25 am
LIS
- COS
2 stops17h 39m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,181
This KAYAK deal was found by Cheapflights users on 4/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:37 pm
DEN
- PDL
1 stop24h 43m
Multiple Airlines
Wed 9/165:30 pm
PDL
- DEN
1 stop26h 48m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$1,182
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Wed 9/29:40 am
DEN
- PDL
2 stops17h 00m
United Airlines
Wed 9/1611:00 am
PDL
- DEN
1 stop13h 00m
United Airlines
Deal found 4/10![United Airlines logo]()
$1,186
This KLM deal was found by Cheapflights users on 4/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:45 pm
DEN
- FAO
2 stops22h 20m
KLM
Fri 9/188:50 am
FAO
- DEN
2 stops20h 59m
KLM
Deal found 4/11![KLM logo]()
$1,096
This Delta deal was found by Cheapflights users on 4/10. 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 9/2611:40 am
DEN
- LIS
2 stops20h 15m
Delta
Wed 9/305:00 am
LIS
- DEN
2 stops20h 34m
Delta
Deal found 4/10![Delta logo]()
$1,010
Last-minute flights from Colorado to PortugalDiscover last-minute flight deals from Colorado to Portugal. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Portugal. Data last updated April 15, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/13. 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 4/148:40 am
DEN
- LIS
1 stop17h 25m
British Airways
Tue 4/2111:05 am
LIS
- DEN
1 stop14h 05m
British Airways
Deal found 4/13![British Airways logo]()
$780
This FlightHub deal was found by Cheapflights users on 4/12. 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.
Tue 4/218:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Mon 4/274:50 pm
OPO
- DEN
1 stop32h 35m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$682
This Turkish Airlines deal was found by Cheapflights users on 4/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:25 pm
DEN
- LIS
1 stop36h 00m
Turkish Airlines
Wed 5/64:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 4/11![Turkish Airlines logo]()
$726
This Gotogate deal was found by Cheapflights users on 4/12. 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.
Thu 4/238:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Wed 5/64:40 pm
OPO
- DEN
1 stop32h 45m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$755
This FlightHub deal was found by Cheapflights users on 4/13. 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.
Sun 4/268:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
Mon 5/114:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 4/13![Turkish Airlines logo]()
$760
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
Wed 5/64:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 4/14![Turkish Airlines logo]()
$766
This Turkish Airlines deal was found by Cheapflights users on 4/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
Tue 5/55:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 4/14![Turkish Airlines logo]()
$771
This oojo deal was found by Cheapflights users on 4/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:25 pm
DEN
- LIS
1 stop30h 30m
Turkish Airlines
Thu 6/115:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 4/13![Turkish Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Sun 4/266:00 am
DEN
- LIS
1 stop21h 30m
United Airlines
Tue 5/55:05 am
LIS
- DEN
2 stops18h 47m
United Airlines
Deal found 4/10![United Airlines logo]()
$784
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 4/288:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Tue 5/55:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$729
This FlightHub deal was found by Cheapflights users on 4/10. 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.
Tue 4/288:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Mon 5/44:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 4/10![Turkish Airlines logo]()
$750
This Iberia deal was found by Cheapflights users on 4/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:30 pm
DEN
- LIS
1 stop21h 30m
Multiple Airlines
Fri 5/812:30 pm
LIS
- DEN
2 stops18h 15m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$782
One-way flights from Colorado to PortugalSearch for one-way flight options from Colorado to Portugal. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
Search for one-way flight options from Colorado to Portugal. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Sat 9/128:10 pm
DEN
- LIS
2 stops41h 55m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Fri 5/293:00 pm
DEN
- OPO
3 stops25h 25m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:40 pm
DEN
- LIS
2 stops23h 20m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:15 pm
DEN
- LIS
2 stops23h 00m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$385
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:35 am
DEN
- OPO
1 stop20h 55m
KLM
Deal found 4/14![KLM logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Mon 8/108:10 pm
DEN
- LIS
3 stops30h 05m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:39 am
DEN
- OPO
2 stops17h 51m
Delta
Deal found 4/12![Delta logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 9/204:40 pm
DEN
- LIS
3 stops43h 15m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Mon 6/16:03 am
DEN
- FAO
3 stops30h 42m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$391
This British Airways deal was found by Cheapflights users on 4/12. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:35 pm
DEN
- OPO
1 stop19h 00m
British Airways
Deal found 4/12![British Airways logo]()
$394
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:05 am
DEN
- OPO
2 stops26h 25m
Delta
Deal found 4/12![Delta logo]()
$395
This KLM deal was found by Cheapflights users on 4/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:50 pm
DEN
- FAO
2 stops36h 35m
KLM
Deal found 4/13![KLM logo]()
$395
Find flight deals from Colorado to Portugal
Keep the following information in mind while searching for Colorado to Portugal flight deals. Data was last updated April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $708 (FlightHub) |
One-way from | $369 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $805 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Portugal 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 April 15, 2026.
Use the filters below to find and compare flights from Colorado to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Wed 9/30
11:25 am-7:00 am
1 stop12h 35m
Porto
Tue 10/13
12:15 pm-2:13 pm
2 stops32h 58m
$817
Colorado SpringsLisbon
COS - LIS
COSLIS
Colorado Springs
Tue 5/5
5:13 pm-5:55 pm
2 stops17h 42m
Lisbon Humberto Delgado
Wed 5/20
8:55 am-11:32 pm
2 stops21h 37m
$821
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Fri 5/8
1:20 pm-2:35 pm
2 stops18h 15m
Lisbon Humberto Delgado
Thu 5/14
5:00 am-7:15 pm
2 stops21h 15m
$889
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Sun 10/4
7:05 am-11:15 am
2 stops21h 10m
Lisbon Humberto Delgado
Fri 10/23
12:45 pm-10:59 pm
2 stops17h 14m
$895
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Tue 9/22
12:20 pm-10:30 am
1 stop15h 10m
Porto
Sun 9/27
9:25 am-11:30 pm
2 stops21h 05m
$899
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Tue 9/22
10:45 am-10:30 am
2 stops16h 45m
Porto
Sun 9/27
4:25 pm-3:40 pm
1 stop30h 15m
$906
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Tue 8/18
6:00 am-7:00 am
2 stops18h 00m
Porto
Mon 8/31
9:00 am-10:13 pm
2 stops20h 13m
$906
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Wed 9/23
3:15 pm-11:45 pm
2 stops25h 30m
Lisbon Humberto Delgado
Sat 10/10
5:55 am-6:25 pm
1 stop19h 30m
$910
Colorado SpringsLisbon
COS - LIS
COSLIS
Colorado Springs
Sun 5/10
11:55 am-2:35 pm
2 stops19h 40m
Lisbon Humberto Delgado
Sun 5/17
7:45 pm-9:27 pm
2 stops32h 42m
$936
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Tue 9/15
12:20 pm-3:35 pm
2 stops20h 15m
Lisbon Humberto Delgado
Wed 9/30
7:15 am-10:49 pm
2 stops22h 34m
$939
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Colorado with our price prediction graph.
DEN-OPO
DEN-FAO
DEN-LIS
COS-LIS
DEN-TER
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 Portugal
USCO-PT0
DEN-OPO
DEN-FAO
DEN-LIS
COS-LIS
What is the cheapest month to book a flight from Colorado to Portugal?
Currently, November is the cheapest month in which you can book a flight from Colorado to Portugal (average of $513). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,016). 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.
Related info for your journey
Find useful and relevant information for your journey from Colorado to Portugal. 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 regions
Alternative routes for Colorado to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Portugal by cabin class
Find flights from Colorado to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Portugal flights
Browse other Colorado and Portugal flight options. Last updated on April 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Portugal
Find the right flight back to Colorado after your stay in Portugal
Colorado to Portugal flights
Consider these flights traveling from Colorado to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 10 airlines flying from Colorado to Portugal
Discover the top 10 airlines that operate flights from Colorado to Portugal. 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 April 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$464 | Average$719 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$511 | Average$1,072 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$559 | Average$976 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$575 | Average$1,034 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$595 | Average$930 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$599 | Average$686 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$603 | Average$984 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$606 | Average$828 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$630 | Average$776 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$640 | Average$723 | FlexibilityNo cancel fee | On-time77% |