$325+ Cheap flights from Colorado to Portugal
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Colorado to 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 September 13, 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 September 13, 2026.
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:40 am -
1 stop16h 40m
Tue 11/36:05 am -
1 stop15h 25m
Deal found 9/10![Multiple Airlines logo]()
$557
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:25 am -
1 stop16h 15m
Tue 11/1712:50 pm -
1 stop14h 37m
Deal found 9/11![Multiple Airlines logo]()
$562
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:25 am -
1 stop16h 15m
Thu 11/198:55 am -
1 stop18h 32m
Deal found 9/10![Multiple Airlines logo]()
$567
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:40 pm -
1 stop32h 40m
Tue 11/2412:50 pm -
1 stop14h 37m
Deal found 9/11![Multiple Airlines logo]()
$572
This Justfly.com deal was found by Cheapflights users on 9/11. 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.
Mon 11/911:25 am -
1 stop16h 15m
Tue 11/1712:50 pm -
2 stops33h 00m
Deal found 9/11![Air Canada logo]()
$575
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 11/236:05 am -
1 stop20h 25m
Thu 12/312:35 pm -
1 stop16h 00m
Deal found 9/10![United Airlines logo]()
$576
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:25 am -
1 stop16h 15m
Tue 11/1712:50 pm -
1 stop14h 37m
Deal found 9/11![Multiple Airlines logo]()
$577
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:25 am -
2 stops18h 40m
Fri 11/66:15 am -
1 stop15h 15m
Deal found 9/10![Multiple Airlines logo]()
$578
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:30 pm -
1 stop13h 50m
Tue 11/36:05 am -
1 stop15h 25m
Deal found 9/10![Multiple Airlines logo]()
$579
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/203:14 pm -
2 stops17h 46m
Wed 11/48:20 am -
2 stops23h 06m
Deal found 9/9![American Airlines logo]()
$581
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:03 am -
2 stops15h 37m
Sun 12/69:55 pm -
2 stops48h 15m
Deal found 9/9![Iberia logo]()
$582
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/226:00 pm -
1 stop32h 30m
Thu 12/312:35 pm -
1 stop14h 24m
Deal found 9/10![United Airlines logo]()
$583
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 September 13, 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 September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/246:00 am -
2 stops20h 30m
Thu 12/312:35 pm -
2 stops17h 52m
Deal found 9/10![United Airlines logo]()
$580
This Finnair deal was found by Cheapflights users on 9/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:39 am -
2 stops22h 11m
Wed 11/44:10 pm -
2 stops34h 43m
Deal found 9/12![Finnair logo]()
$598
This Delta deal was found by Cheapflights users on 9/12. 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.
Tue 10/277:30 am -
2 stops25h 40m
Tue 11/35:30 am -
2 stops21h 44m
Deal found 9/12![Delta logo]()
$646
This British Airways deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Tue 11/35:01 pm -
1 stop14h 49m
Mon 11/97:05 am -
1 stop15h 05m
Deal found 9/8![British Airways logo]()
$649
This KLM deal was found by Cheapflights users on 9/12. 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.
Fri 10/3012:15 pm -
1 stop13h 00m
Sat 11/1410:15 am -
1 stop17h 10m
Deal found 9/12![KLM logo]()
$676
This KLM deal was found by Cheapflights users on 9/12. 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.
Sat 11/72:36 pm -
2 stops17h 34m
Sat 11/1411:15 am -
2 stops19h 00m
Deal found 9/12![Multiple Airlines logo]()
$719
This KAYAK deal was found by Cheapflights users on 9/12. 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.
Fri 10/21:29 pm -
2 stops14h 01m
Mon 10/124:20 pm -
2 stops32h 35m
Deal found 9/12![Lufthansa logo]()
$1,071
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:30 pm -
2 stops16h 00m
Mon 11/29:15 pm -
2 stops33h 20m
Deal found 9/11![TAP AIR PORTUGAL logo]()
$1,089
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/257:45 am -
2 stops18h 45m
Thu 12/312:35 pm -
1 stop16h 00m
Deal found 9/10![United Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/247:15 pm -
1 stop29h 55m
Thu 12/310:55 am -
1 stop30h 40m
Deal found 9/10![United Airlines logo]()
$583
This Air Canada deal was found by Cheapflights users on 9/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/67:40 am -
3 stops21h 20m
Sat 1/166:40 am -
2 stops33h 50m
Deal found 9/12![Air Canada logo]()
$1,309
This Delta deal was found by Cheapflights users on 9/11. 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.
Mon 11/211:28 am -
1 stop14h 32m
Sun 11/85:30 am -
2 stops24h 42m
Deal found 9/11![Delta logo]()
$657
This KLM deal was found by Cheapflights users on 9/11. 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.
Wed 11/115:07 pm -
2 stops41h 03m
Wed 11/1810:25 am -
2 stops39h 06m
Deal found 9/11![KLM logo]()
$696
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/224:12 pm -
1 stop34h 18m
Thu 12/312:35 pm -
2 stops17h 52m
Deal found 9/10![United Airlines logo]()
$587
This United deal was found by Cheapflights users on 9/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:52 pm -
2 stops27h 38m
Sat 10/311:45 pm -
1 stop31h 45m
Deal found 9/12![Multiple Airlines logo]()
$735
This KLM deal was found by Cheapflights users on 9/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/174:40 pm -
2 stops57h 55m
Sun 1/3110:10 am -
2 stops38h 54m
Deal found 9/9![KLM logo]()
$699
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 11/211:25 am -
1 stop16h 15m
Sun 11/85:15 am -
1 stop16h 15m
Deal found 9/10![United Airlines logo]()
$640
This Finnair deal was found by Cheapflights users on 9/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:39 am -
2 stops22h 11m
Wed 10/284:10 pm -
2 stops35h 37m
Deal found 9/11![Finnair logo]()
$884
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:37 pm -
2 stops19h 33m
Tue 12/15:00 am -
2 stops19h 11m
Deal found 9/8![Delta logo]()
$820
This KLM deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/232:24 pm -
2 stops36h 11m
Wed 12/210:25 am -
2 stops38h 12m
Deal found 9/8![KLM logo]()
$746
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:01 pm -
1 stop17h 59m
Mon 11/91:40 pm -
1 stop32h 30m
Deal found 9/10![British Airways logo]()
$907
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 11/149:49 am -
1 stop16h 41m
Sun 11/2212:35 pm -
1 stop18h 00m
Deal found 9/11![United Airlines logo]()
$676
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:35 pm -
1 stop21h 40m
Wed 10/2810:45 am -
2 stops19h 51m
Deal found 9/11![British Airways logo]()
$914
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Fri 11/611:50 am -
1 stop12h 30m
Tue 11/1711:15 am -
2 stops31h 52m
Deal found 9/10![Multiple Airlines logo]()
$1,014
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:01 pm -
1 stop17h 59m
Tue 11/1011:15 am -
1 stop34h 55m
Deal found 9/10![British Airways logo]()
$934
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/27:00 am -
2 stops16h 55m
Sun 12/610:40 am -
2 stops38h 36m
Deal found 9/10![United Airlines logo]()
$710
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/9. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:05 pm -
2 stops29h 40m
Fri 11/206:30 am -
2 stops22h 39m
Deal found 9/9![TAP AIR PORTUGAL logo]()
$1,159
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Mon 2/226:00 am -
1 stop20h 30m
Fri 2/266:00 am -
1 stop14h 40m
Deal found 9/8![United Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:15 am -
2 stops23h 40m
Mon 10/125:00 am -
2 stops19h 27m
Deal found 9/9![Delta logo]()
$1,046
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:00 pm -
2 stops37h 20m
Fri 11/136:30 am -
2 stops35h 17m
Deal found 9/11![Multiple Airlines logo]()
$1,046
Last-minute flights from Colorado to PortugalDiscover last-minute flight deals from Colorado to Portugal. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Portugal. Data last updated September 13, 2026 and is based on user searches.
This Iberia deal was found by Cheapflights users on 9/9. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:35 pm -
1 stop21h 40m
Wed 11/48:20 am -
2 stops21h 34m
Deal found 9/9![Multiple Airlines logo]()
$583
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:40 am -
1 stop16h 40m
Tue 11/36:05 am -
1 stop15h 25m
Deal found 9/10![Multiple Airlines logo]()
$557
This Delta deal was found by Cheapflights users on 9/11. 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.
Sun 10/186:35 am -
1 stop20h 50m
Tue 11/35:55 am -
2 stops21h 11m
Deal found 9/11![Delta logo]()
$590
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/203:14 pm -
2 stops17h 46m
Wed 11/48:20 am -
2 stops23h 06m
Deal found 9/9![American Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:40 am -
1 stop14h 20m
Wed 11/412:35 pm -
2 stops17h 56m
Deal found 9/9![United Airlines logo]()
$591
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:25 am -
2 stops18h 40m
Fri 11/66:15 am -
1 stop15h 15m
Deal found 9/10![Multiple Airlines logo]()
$578
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:30 pm -
1 stop13h 50m
Tue 11/36:05 am -
1 stop15h 25m
Deal found 9/10![Multiple Airlines logo]()
$579
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:01 pm -
1 stop17h 44m
Fri 11/67:05 am -
1 stop15h 05m
Deal found 9/11![British Airways logo]()
$587
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:05 am -
1 stop20h 05m
Fri 11/611:20 am -
1 stop16h 07m
Deal found 9/9![United Airlines logo]()
$589
This Orbitz deal was found by Cheapflights users on 9/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:17 pm -
2 stops17h 28m
Mon 11/29:55 pm -
2 stops24h 15m
Deal found 9/9![Iberia logo]()
$592
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:25 pm -
2 stops28h 30m
Fri 11/611:20 am -
1 stop16h 07m
Deal found 9/9![Air Canada logo]()
$592
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/276:00 pm -
2 stops30h 55m
Tue 11/36:05 am -
1 stop15h 25m
Deal found 9/10![United Airlines logo]()
$594
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 September 13, 2026.
Search for one-way flight options from Colorado to Portugal. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:40 am -
3 stops48h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:12 am -
3 stops29h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:12 am -
3 stops31h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:10 pm -
3 stops41h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:00 am -
2 stops49h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Mon 1/43:40 pm -
2 stops33h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:10 pm -
3 stops43h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/204:40 pm -
3 stops38h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/33:40 pm -
2 stops19h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Tue 11/103:40 pm -
2 stops21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$359
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Wed 2/1711:20 am -
1 stop12h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$361
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/115:01 pm -
1 stop21h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![British Airways logo]()
$362
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 September 13, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $557 (Gotogate) |
One-way from | $325 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,040 |
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 7,457,451 searches. Data last updated September 13, 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
DenverFaro
DEN Denver Intl - FAO Faro
DENFAO
Denver Intl
Sat 10/17
7:12 am-7:55 pm
3 stops29h 43m
Faro
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$327
DenverFaro
DEN Denver Intl - FAO Faro
DENFAO
Denver Intl
Fri 2/26
3:40 pm-10:40 pm
2 stops24h 00m
Faro
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$387
Quickest round-trip
DenverFaro
DEN Denver Intl - FAO Faro
DENFAO
Denver Intl
Fri 2/26
4:15 pm-1:05 pm
1 stop13h 50m
Faro
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$400
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Sat 11/7
11:59 pm-8:10 am
2 stops25h 11m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$463
DenverPorto
DEN Denver Intl - OPO Porto
DENOPO
Denver Intl
Fri 3/12
6:30 am-10:35 am
2 stops21h 05m
Porto
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$466
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Sat 11/21
12:24 pm-10:10 am
2 stops38h 46m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$550
DenverFunchal
DEN Denver Intl - FNC Funchal Madeira
DENFNC
Denver Intl
Sun 9/27
12:29 pm-12:40 pm
2 stops17h 11m
Funchal Madeira
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$564
DenverFunchal
DEN Denver Intl - FNC Funchal Madeira
DENFNC
Denver Intl
Sun 9/27
12:29 pm-12:40 pm
2 stops17h 11m
Funchal Madeira
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$564
DenverPorto
DEN Denver Intl - OPO Porto
DENOPO
Denver Intl
Tue 11/24
6:00 am-9:30 am
2 stops20h 30m
Porto
Thu 12/3
12:35 pm-11:27 pm
2 stops17h 52m
$580
DenverPorto
DEN Denver Intl - OPO Porto
DENOPO
Denver Intl
Wed 11/25
7:45 am-9:30 am
2 stops18h 45m
Porto
Thu 12/3
12:35 pm-9:35 pm
1 stop16h 00m
$580
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-LIS
ASE-LIS
COS-LIS
DEN-FNC
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-LIS
ASE-LIS
COS-LIS
What is the cheapest month to book a flight from Colorado to Portugal?
Currently, February is the cheapest month in which you can book a flight from Colorado to Portugal (average of $638). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,333). 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 far ahead should I book a flight from Colorado to Portugal?
To ensure you get the cheapest price possible for a flight from Colorado to Portugal, you should look to book at least 26 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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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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 September 13, 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 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$464 | Average$739 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$485 | Average$977 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$1,073 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$551 | Average$908 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$575 | Average$1,107 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$575 | Average$1,029 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$575 | Average$691 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$630 | Average$776 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$632 | Average$888 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$635 | Average$773 | FlexibilityNo cancel fee | On-time77% |