$294+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
apr. 15 — apr. 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 maart 16, 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 maart 16, 2026.
This United Airlines deal was found by Cheapflights users on 3/13. 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.
vr 10/2311:00 am
ASE
- LIS
2 stops14h 20m
United Airlines
vr 11/65:00 am
LIS
- ASE
2 stops20h 26m
United Airlines
Deal found 3/13![United Airlines logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
di 4/286:45 am
LIS
- DEN
2 stops19h 44m
Lufthansa
Deal found 3/14![Lufthansa logo]()
$619
This United Airlines deal was found by Cheapflights users on 3/12. 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.
vr 11/1311:00 am
ASE
- LIS
2 stops14h 10m
United Airlines
di 11/175:00 am
LIS
- ASE
2 stops38h 26m
United Airlines
Deal found 3/12![United Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 3/15. 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.
zo 4/123:26 pm
COS
- LIS
2 stops41h 04m
United Airlines
zo 4/1911:25 am
LIS
- COS
2 stops41h 29m
United Airlines
Deal found 3/15![United Airlines logo]()
$626
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
di 4/216:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Deal found 3/15![Lufthansa logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
do 4/167:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$632
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
zo 4/124:05 pm
DEN
- LIS
1 stop23h 40m
Lufthansa
vr 4/247:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Deal found 3/11![Lufthansa logo]()
$634
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
ma 3/165:20 pm
DEN
- LIS
1 stop24h 10m
Lufthansa
wo 4/16:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$637
This United Airlines deal was found by Cheapflights users on 3/12. 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.
wo 10/212:00 pm
ASE
- LIS
2 stops13h 30m
United Airlines
wo 11/46:10 am
LIS
- ASE
3 stops19h 16m
United Airlines
Deal found 3/12![United Airlines logo]()
$638
This Gotogate deal was found by Cheapflights users on 3/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 11/1011:15 am
DEN
- LIS
1 stop15h 05m
Multiple Airlines
do 11/195:00 am
LIS
- DEN
1 stop18h 00m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$644
This Gotogate deal was found by Cheapflights users on 3/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 12/41:25 pm
DEN
- OPO
2 stops16h 25m
Multiple Airlines
di 12/86:00 am
OPO
- DEN
1 stop17h 00m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$645
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/268:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
ma 5/1110:55 am
LIS
- DEN
1 stop38h 30m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$653
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 maart 16, 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 maart 16, 2026.
This United Airlines deal was found by Cheapflights users on 3/15. 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.
zo 4/123:26 pm
COS
- LIS
2 stops41h 04m
United Airlines
zo 4/1911:25 am
LIS
- COS
2 stops41h 29m
United Airlines
Deal found 3/15![United Airlines logo]()
$626
This Delta deal was found by Cheapflights users on 3/12. 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.
wo 4/2911:45 am
DEN
- LIS
2 stops19h 50m
Delta
ma 5/45:00 am
LIS
- DEN
2 stops23h 27m
Delta
Deal found 3/12![Delta logo]()
$744
This British Airways deal was found by Cheapflights users on 3/12. 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.
zo 4/261:39 pm
COS
- LIS
2 stops21h 06m
British Airways
zo 5/36:50 pm
LIS
- COS
2 stops31h 58m
British Airways
Deal found 3/12![British Airways logo]()
$794
This Finnair deal was found by Cheapflights users on 3/11. 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.
di 5/121:39 pm
COS
- LIS
2 stops18h 56m
Multiple Airlines
di 5/194:35 pm
LIS
- COS
2 stops37h 57m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$826
This Finnair deal was found by Cheapflights users on 3/11. 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.
zo 4/1210:28 am
DEN
- LIS
2 stops29h 57m
Finnair
vr 4/246:35 am
LIS
- DEN
2 stops20h 20m
Finnair
Deal found 3/11![Finnair logo]()
$879
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
do 4/302:41 pm
DEN
- OPO
2 stops33h 59m
Iberia
do 5/78:20 am
OPO
- DEN
2 stops22h 25m
Iberia
Deal found 3/16![Iberia logo]()
$898
This KLM deal was found by Cheapflights users on 3/13. 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.
di 4/75:06 pm
DEN
- FNC
2 stops57h 34m
KLM
di 4/2110:00 am
FNC
- DEN
2 stops38h 21m
KLM
Deal found 3/13![KLM logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 3/15. 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.
ma 4/133:55 pm
DEN
- FAO
2 stops36h 25m
United Airlines
ma 4/203:25 pm
FAO
- DEN
3 stops51h 18m
United Airlines
Deal found 3/15![United Airlines logo]()
$695
This Delta deal was found by Cheapflights users on 3/12. 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.
di 4/1411:45 am
DEN
- OPO
2 stops20h 40m
Delta
zo 4/195:55 am
OPO
- DEN
2 stops24h 24m
Delta
Deal found 3/12![Delta logo]()
$779
This United Airlines deal was found by Cheapflights users on 3/15. 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.
do 4/94:05 pm
DEN
- LIS
1 stop23h 40m
United Airlines
wo 4/156:45 am
LIS
- DEN
2 stops22h 30m
United Airlines
Deal found 3/15![United Airlines logo]()
$736
This oojo deal was found by Cheapflights users on 3/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/2711:59 pm
DEN
- PXO
2 stops52h 11m
TAP AIR PORTUGAL
ma 5/412:00 pm
PXO
- DEN
2 stops34h 30m
TAP AIR PORTUGAL
Deal found 3/12![TAP AIR PORTUGAL logo]()
$1,636
This British Airways deal was found by Cheapflights users on 3/15. 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.
ma 4/1310:37 am
DEN
- FNC
2 stops24h 58m
British Airways
ma 4/206:55 pm
FNC
- DEN
1 stop28h 25m
British Airways
Deal found 3/15![British Airways logo]()
$822
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/1211:59 pm
DEN
- LIS
2 stops26h 21m
United Airlines
zo 4/196:45 am
LIS
- DEN
2 stops22h 30m
United Airlines
Deal found 3/14![United Airlines logo]()
$737
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/266:00 am
COS
- LIS
3 stops21h 50m
Air Canada
zo 5/37:40 am
LIS
- COS
3 stops23h 19m
Air Canada
Deal found 3/12![Air Canada logo]()
$1,790
This Mytrip deal was found by Cheapflights users on 3/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 5/44:40 pm
DEN
- FAO
3 stops24h 10m
Multiple Airlines
ma 5/116:10 pm
FAO
- DEN
3 stops31h 50m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$907
This British Airways deal was found by Cheapflights users on 3/12. 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.
di 4/282:41 pm
DEN
- LIS
2 stops17h 54m
British Airways
zo 5/36:50 pm
LIS
- DEN
1 stop28h 40m
British Airways
Deal found 3/12![British Airways logo]()
$839
This Delta deal was found by Cheapflights users on 3/15. 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.
di 5/123:15 pm
DEN
- OPO
2 stops20h 05m
Delta
zo 5/245:55 am
OPO
- DEN
1 stop16h 45m
Delta
Deal found 3/15![Delta logo]()
$843
This United Airlines deal was found by Cheapflights users on 3/12. 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.
ma 4/274:05 pm
DEN
- LIS
1 stop14h 35m
United Airlines
ma 5/41:00 pm
LIS
- DEN
1 stop14h 28m
United Airlines
Deal found 3/12![United Airlines logo]()
$747
This oojo deal was found by Cheapflights users on 3/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/2611:59 pm
DEN
- TER
2 stops27h 11m
Multiple Airlines
zo 5/311:55 am
TER
- DEN
2 stops40h 18m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$941
This Delta deal was found by Cheapflights users on 3/13. 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.
wo 5/66:40 am
DEN
- LIS
1 stop18h 20m
Delta
zo 5/245:35 am
LIS
- DEN
1 stop17h 05m
Delta
Deal found 3/13![Delta logo]()
$898
This United Airlines deal was found by Cheapflights users on 3/13. 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.
di 4/211:25 pm
ASE
- LIS
2 stops17h 15m
United Airlines
di 5/2611:25 am
LIS
- ASE
2 stops34h 19m
United Airlines
Deal found 3/13![United Airlines logo]()
$763
This British Airways deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
do 4/306:40 pm
DEN
- FAO
1 stop17h 25m
British Airways
do 5/77:55 pm
FAO
- DEN
2 stops31h 00m
British Airways
Deal found 3/16![British Airways logo]()
$945
This oojo deal was found by Cheapflights users on 3/13. 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.
vr 9/1111:25 am
DEN
- PIX
2 stops21h 45m
Multiple Airlines
di 9/158:20 am
PIX
- DEN
2 stops34h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$981
This United Airlines deal was found by Cheapflights users on 3/12. 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.
do 4/911:59 pm
DEN
- FAO
2 stops28h 21m
United Airlines
do 4/163:25 pm
FAO
- DEN
2 stops33h 41m
United Airlines
Deal found 3/12![United Airlines logo]()
$780
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
do 3/1912:51 pm
DEN
- LIS
2 stops19h 44m
Delta
di 3/315:00 am
LIS
- DEN
2 stops23h 28m
Delta
Deal found 3/16![Delta logo]()
$978
This oojo deal was found by Cheapflights users on 3/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 4/106:30 pm
DEN
- FAO
1 stop33h 30m
British Airways
vr 4/174:55 pm
FAO
- DEN
1 stop30h 25m
British Airways
Deal found 3/12![British Airways logo]()
$980
This KLM deal was found by Cheapflights users on 3/13. 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.
di 6/96:25 pm
DEN
- FNC
2 stops31h 50m
KLM
wo 6/1710:25 am
FNC
- DEN
2 stops38h 13m
KLM
Deal found 3/13![KLM logo]()
$1,305
This oojo deal was found by Cheapflights users on 3/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 4/2311:59 pm
DEN
- PDL
1 stop24h 46m
Multiple Airlines
vr 5/16:05 pm
PDL
- DEN
1 stop34h 08m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$981
This United Airlines deal was found by Cheapflights users on 3/12. 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.
za 4/188:25 pm
DEN
- LIS
1 stop19h 20m
United Airlines
za 4/255:05 am
LIS
- DEN
2 stops25h 54m
United Airlines
Deal found 3/12![United Airlines logo]()
$787
This Air Canada deal was found by Cheapflights users on 3/15. 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.
zo 4/1210:28 am
COS
- LIS
3 stops17h 32m
Multiple Airlines
zo 4/1911:25 am
LIS
- COS
2 stops28h 24m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$1,004
Last-minute flights from Colorado to PortugalDiscover last-minute flight deals from Colorado to Portugal. Data last updated maart 16, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Portugal. Data last updated maart 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
ma 3/165:20 pm
DEN
- LIS
1 stop24h 10m
Lufthansa
wo 4/16:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
di 4/286:45 am
LIS
- DEN
2 stops19h 44m
Lufthansa
Deal found 3/14![Lufthansa logo]()
$619
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
di 4/216:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Deal found 3/15![Lufthansa logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
do 4/167:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$632
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
za 4/187:25 am
LIS
- DEN
2 stops23h 34m
Lufthansa
Deal found 3/15![Lufthansa logo]()
$664
This United Airlines deal was found by Cheapflights users on 3/15. 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.
zo 4/123:26 pm
COS
- LIS
2 stops41h 04m
United Airlines
zo 4/1911:25 am
LIS
- COS
2 stops41h 29m
United Airlines
Deal found 3/15![United Airlines logo]()
$626
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
zo 4/124:05 pm
DEN
- LIS
1 stop23h 40m
Lufthansa
vr 4/247:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Deal found 3/11![Lufthansa logo]()
$634
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/134:05 pm
DEN
- FAO
1 stop16h 00m
Lufthansa
ma 4/203:55 pm
FAO
- DEN
1 stop29h 25m
Lufthansa
Deal found 3/15![Lufthansa logo]()
$664
This oojo deal was found by Cheapflights users on 3/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/148:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
vr 4/2411:00 am
LIS
- DEN
1 stop38h 25m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$666
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/268:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
ma 5/1110:55 am
LIS
- DEN
1 stop38h 30m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$653
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/288:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
vr 5/84:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$654
This FlightHub deal was found by Cheapflights users on 3/13. 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.
di 4/288:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
di 5/125:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 3/13![Turkish Airlines logo]()
$655
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 maart 16, 2026.
Search for one-way flight options from Colorado to Portugal. Find affordable one-way fares based on user searches. Data last updated maart 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
wo 5/137:50 am
DEN
- OPO
3 stops53h 35m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
zo 4/267:15 am
DEN
- OPO
3 stops49h 25m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$300
This Lufthansa deal was found by Cheapflights users on 3/12. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/74:05 pm
DEN
- FAO
1 stop16h 00m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
za 4/259:00 pm
DEN
- OPO
3 stops59h 40m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$312
This United Airlines deal was found by Cheapflights users on 3/15. 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.
wo 4/1511:15 am
DEN
- FAO
2 stops17h 05m
United Airlines
Deal found 3/15![United Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 3/12. 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.
di 4/76:00 am
DEN
- FAO
2 stops22h 20m
United Airlines
Deal found 3/12![United Airlines logo]()
$315
This Air Canada deal was found by Cheapflights users on 3/12. 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.
ma 4/66:05 pm
DEN
- FAO
2 stops38h 00m
Air Canada
Deal found 3/12![Air Canada logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
ma 4/64:40 pm
DEN
- FAO
3 stops33h 55m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
za 4/253:45 pm
DEN
- LIS
3 stops46h 20m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 3/12. 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.
za 4/1111:59 pm
DEN
- FAO
2 stops28h 21m
United Airlines
Deal found 3/12![United Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
di 4/287:15 am
DEN
- FAO
3 stops32h 05m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
zo 4/1210:45 am
DEN
- FAO
3 stops50h 00m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$335
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 maart 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $619 (Kiwi.com) |
One-way from | $294 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $755 |
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 maart 16, 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
Colorado SpringsLisbon
COS - LIS
COSLIS
Colorado Springs
zo 4/12
3:26 pm-3:30 pm
2 stops41h 04m
Lisbon Humberto Delgado
zo 4/19
11:25 am-9:54 pm
2 stops41h 29m
$626
DenverFaro
DEN - FAO
DENFAO
Denver Intl
ma 4/13
3:55 pm-11:20 am
2 stops36h 25m
Faro
ma 4/20
3:25 pm-11:43 am
3 stops51h 18m
$695
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
do 4/9
4:05 pm-10:45 pm
1 stop23h 40m
Lisbon Humberto Delgado
wo 4/15
6:45 am-10:15 pm
2 stops22h 30m
$736
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
zo 4/12
11:59 pm-9:20 am
2 stops26h 21m
Lisbon Humberto Delgado
zo 4/19
6:45 am-10:15 pm
2 stops22h 30m
$737
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
wo 4/29
11:45 am-2:35 pm
2 stops19h 50m
Lisbon Humberto Delgado
ma 5/4
5:00 am-9:27 pm
2 stops23h 27m
$744
Quickest round-trip
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
ma 4/27
4:05 pm-1:40 pm
1 stop14h 35m
Lisbon Humberto Delgado
ma 5/4
1:00 pm-8:28 pm
1 stop14h 28m
$747
AspenLisbon
ASE - LIS
ASELIS
Aspen Pitkin County
di 4/21
1:25 pm-1:40 pm
2 stops17h 15m
Lisbon Humberto Delgado
di 5/26
11:25 am-2:44 pm
2 stops34h 19m
$763
DenverPorto
DEN - OPO
DENOPO
Denver Intl
di 4/14
11:45 am-3:25 pm
2 stops20h 40m
Porto
zo 4/19
5:55 am-11:19 pm
2 stops24h 24m
$779
DenverFaro
DEN - FAO
DENFAO
Denver Intl
do 4/9
11:59 pm-11:20 am
2 stops28h 21m
Faro
do 4/16
3:25 pm-6:06 pm
2 stops33h 41m
$780
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
za 4/18
8:25 pm-10:45 pm
1 stop19h 20m
Lisbon Humberto Delgado
za 4/25
5:05 am-11:59 pm
2 stops25h 54m
$787
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-FAO
DEN-LIS
ASE-LIS
DEN-OPO
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-FAO
DEN-LIS
ASE-LIS
DEN-OPO
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 $503). Flying from Colorado to Portugal in June is currently the most expensive (average of $1,043). 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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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 maart 16, 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 maart 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$458 | Average$668 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$511 | Average$1,105 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$555 | Average$818 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$559 | Average$949 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$575 | Average$984 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$595 | Average$866 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$599 | Average$686 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$603 | Average$984 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$630 | Average$917 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$634 | Average$712 | FlexibilityNo cancel fee | On-time77% |