$294+ Cheap flights from Denver (DEN) 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 14 — Apr 211
Round-trip
1 adult, Economy
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Cheapest flights from Denver to PortugalExplore the most affordable flight options available from Denver to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
Explore the most affordable flight options available from Denver to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 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.
Tue 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
Tue 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 3/12. 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 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
Thu 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.
Sun 4/124:05 pm
DEN
- LIS
1 stop23h 40m
Lufthansa
Fri 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.
Mon 3/165:20 pm
DEN
- LIS
1 stop24h 10m
Lufthansa
Wed 4/16:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$637
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.
Tue 11/1011:15 am
DEN
- LIS
1 stop15h 05m
Multiple Airlines
Thu 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.
Fri 12/41:25 pm
DEN
- OPO
2 stops16h 25m
Multiple Airlines
Tue 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 3/10. 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.
Sun 4/268:25 pm
DEN
- LIS
1 stop30h 30m
Turkish Airlines
Mon 5/114:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 3/10![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.
Tue 4/148:25 pm
DEN
- LIS
1 stop30h 25m
Turkish Airlines
Fri 4/2411:00 am
LIS
- DEN
1 stop38h 25m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$654
This FlightHub deal was found by Cheapflights users on 3/10. 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 stop30h 25m
Turkish Airlines
Tue 5/125:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$655
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Wed 8/2610:55 am
LIS
- DEN
1 stop38h 30m
Turkish Airlines
Deal found 3/13![Turkish Airlines logo]()
$658
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:20 pm
DEN
- OPO
1 stop13h 30m
Lufthansa
Tue 12/86:00 am
OPO
- DEN
1 stop17h 00m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$659
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Sun 4/268:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Sat 5/210:55 am
LIS
- DEN
1 stop38h 30m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$661
Best flights from Denver to PortugalDiscover carefully curated flight deals from Denver to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
Discover carefully curated flight deals from Denver to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:40 am
DEN
- LIS
2 stops19h 10m
Delta
Tue 4/215:00 am
LIS
- DEN
2 stops22h 19m
Delta
Deal found 3/14![Delta logo]()
$689
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.
Wed 8/1211:25 am
DEN
- OPO
1 stop12h 35m
United Airlines
Tue 8/2512:15 pm
OPO
- DEN
1 stop29h 18m
United Airlines
Deal found 3/15![United Airlines logo]()
$731
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
DEN
- LIS
2 stops26h 35m
Turkish Airlines
Wed 9/164:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 3/14![Turkish Airlines logo]()
$819
This British Airways deal was found by Cheapflights users on 3/10. 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.
Sun 4/266:30 pm
DEN
- LIS
1 stop14h 55m
British Airways
Sun 5/36:50 pm
LIS
- DEN
1 stop28h 40m
British Airways
Deal found 3/10![British Airways logo]()
$835
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.
Sun 4/1210:28 am
DEN
- LIS
2 stops29h 57m
Finnair
Fri 4/246:35 am
LIS
- DEN
2 stops20h 20m
Finnair
Deal found 3/11![Finnair logo]()
$879
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.
Mon 5/44:40 pm
DEN
- FAO
3 stops24h 10m
Multiple Airlines
Mon 5/116:10 pm
FAO
- DEN
3 stops31h 50m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$907
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.
Tue 4/75:06 pm
DEN
- FNC
2 stops57h 34m
KLM
Tue 4/2110:00 am
FNC
- DEN
2 stops38h 21m
KLM
Deal found 3/13![KLM logo]()
$1,203
This Delta deal was found by Cheapflights users on 3/10. 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.
Tue 4/711:35 am
DEN
- OPO
2 stops20h 50m
Delta
Tue 4/145:00 am
OPO
- DEN
2 stops24h 06m
Delta
Deal found 3/10![Delta logo]()
$722
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.
Thu 4/94:05 pm
DEN
- LIS
1 stop23h 40m
United Airlines
Wed 4/156:45 am
LIS
- DEN
2 stops22h 30m
United Airlines
Deal found 3/15![United Airlines logo]()
$736
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.
Tue 4/288:25 pm
DEN
- LIS
1 stop19h 20m
United Airlines
Mon 5/47:25 am
LIS
- DEN
2 stops21h 54m
United Airlines
Deal found 3/13![United Airlines logo]()
$737
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.
Mon 4/2711:59 pm
DEN
- PXO
2 stops52h 11m
TAP AIR PORTUGAL
Mon 5/412:00 pm
PXO
- DEN
2 stops34h 30m
TAP AIR PORTUGAL
Deal found 3/12![TAP AIR PORTUGAL logo]()
$1,636
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.
Wed 4/2911:45 am
DEN
- LIS
2 stops19h 50m
Delta
Mon 5/45:00 am
LIS
- DEN
2 stops23h 27m
Delta
Deal found 3/12![Delta logo]()
$744
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.
Mon 4/274:05 pm
DEN
- LIS
1 stop14h 35m
United Airlines
Mon 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.
Sun 4/2611:59 pm
DEN
- TER
2 stops27h 11m
Multiple Airlines
Sun 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 3/12. 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 4/1411:45 am
DEN
- OPO
2 stops20h 40m
Delta
Sun 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 3/12. 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 4/188:25 pm
DEN
- LIS
1 stop19h 20m
United Airlines
Sat 4/255:05 am
LIS
- DEN
2 stops25h 54m
United Airlines
Deal found 3/12![United Airlines logo]()
$787
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.
Fri 9/1111:25 am
DEN
- PIX
2 stops21h 45m
Multiple Airlines
Tue 9/158:20 am
PIX
- DEN
2 stops34h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$981
This Delta deal was found by Cheapflights users on 3/10. 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.
Mon 9/75:40 pm
DEN
- OPO
1 stop14h 45m
Delta
Tue 9/224:25 pm
OPO
- DEN
1 stop30h 15m
Delta
Deal found 3/10![Delta logo]()
$876
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.
Thu 4/2311:59 pm
DEN
- PDL
1 stop24h 46m
Multiple Airlines
Fri 5/16:05 pm
PDL
- DEN
1 stop34h 08m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$981
This KLM deal was found by Cheapflights users on 3/10. 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.
Sat 6/272:20 pm
DEN
- FAO
2 stops20h 50m
KLM
Thu 7/99:05 pm
FAO
- DEN
2 stops28h 29m
KLM
Deal found 3/10![KLM logo]()
$1,219
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.
Sat 5/911:59 pm
DEN
- PDL
2 stops26h 41m
United Airlines
Fri 5/2211:00 am
PDL
- DEN
1 stop13h 23m
United Airlines
Deal found 3/14![United Airlines logo]()
$863
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:34 pm
DEN
- PDL
2 stops28h 46m
Multiple Airlines
Tue 6/98:25 am
PDL
- DEN
2 stops34h 55m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$1,023
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.
Tue 5/121:08 pm
DEN
- OPO
2 stops19h 22m
Delta
Sun 5/245:55 am
OPO
- DEN
1 stop16h 45m
Delta
Deal found 3/12![Delta logo]()
$938
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.
Tue 6/96:25 pm
DEN
- FNC
2 stops31h 50m
KLM
Wed 6/1710:25 am
FNC
- DEN
2 stops38h 13m
KLM
Deal found 3/13![KLM logo]()
$1,305
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.
Tue 3/318:25 pm
DEN
- LIS
1 stop19h 20m
United Airlines
Sun 4/126:15 am
LIS
- DEN
1 stop19h 35m
United Airlines
Deal found 3/14![United Airlines logo]()
$928
This oojo deal was found by Cheapflights users on 3/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:59 pm
DEN
- PDL
2 stops24h 21m
Multiple Airlines
Mon 5/115:30 pm
PDL
- DEN
2 stops28h 00m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$1,031
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:05 am
DEN
- OPO
2 stops21h 15m
Delta
Fri 9/115:00 am
OPO
- DEN
2 stops20h 10m
Delta
Deal found 3/10![Delta logo]()
$941
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/10. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:35 pm
DEN
- TER
2 stops41h 15m
TAP AIR PORTUGAL
Tue 4/211:40 pm
TER
- DEN
2 stops39h 24m
TAP AIR PORTUGAL
Deal found 3/10![TAP AIR PORTUGAL logo]()
$1,638
This oojo deal was found by Cheapflights users on 3/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:59 pm
DEN
- PDL
2 stops24h 21m
Multiple Airlines
Wed 9/165:30 pm
PDL
- DEN
1 stop23h 10m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$1,044
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.
Sun 7/198:00 am
DEN
- LIS
1 stop19h 30m
United Airlines
Wed 7/295:05 am
LIS
- DEN
2 stops25h 44m
United Airlines
Deal found 3/13![United Airlines logo]()
$975
Last-minute flights from Denver to PortugalDiscover last-minute flight deals from Denver to Portugal. Data last updated March 15, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Portugal. Data last updated March 15, 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.
Mon 3/165:20 pm
DEN
- LIS
1 stop24h 10m
Lufthansa
Wed 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.
Tue 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
Tue 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 3/12. 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 4/74:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
Thu 4/167:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$632
This Finnair deal was found by Cheapflights users on 3/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:40 pm
DEN
- OPO
1 stop17h 50m
Multiple Airlines
Tue 4/148:55 pm
OPO
- DEN
1 stop26h 35m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$676
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.
Thu 4/98:25 pm
DEN
- OPO
1 stop20h 05m
Turkish Airlines
Thu 4/166:10 am
OPO
- DEN
1 stop19h 15m
Turkish Airlines
Deal found 3/12![Turkish Airlines logo]()
$671
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.
Sun 4/124:05 pm
DEN
- LIS
1 stop23h 40m
Lufthansa
Fri 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.
Tue 4/148:25 pm
DEN
- LIS
1 stop30h 25m
Turkish Airlines
Fri 4/2411:00 am
LIS
- DEN
1 stop38h 25m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$654
This oojo deal was found by Cheapflights users on 3/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:25 pm
DEN
- LIS
1 stop30h 25m
Turkish Airlines
Wed 4/2910:55 am
LIS
- DEN
1 stop38h 30m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$666
This FlightHub deal was found by Cheapflights users on 3/10. 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.
Sun 4/268:25 pm
DEN
- LIS
1 stop30h 30m
Turkish Airlines
Mon 5/114:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Sun 4/268:25 pm
DEN
- LIS
1 stop19h 55m
Turkish Airlines
Sat 5/210:55 am
LIS
- DEN
1 stop38h 30m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$661
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:40 am
DEN
- LIS
2 stops32h 25m
Scandinavian Airlines
Wed 5/612:45 pm
LIS
- DEN
2 stops40h 55m
Scandinavian Airlines
Deal found 3/11![Scandinavian Airlines logo]()
$667
This FlightHub deal was found by Cheapflights users on 3/10. 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 stop30h 25m
Turkish Airlines
Tue 5/125:55 am
LIS
- DEN
1 stop19h 30m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$655
One-way flights from Denver to PortugalSearch for one-way flight options from Denver to Portugal. Find affordable one-way fares based on user searches. Data last updated March 15, 2026.
Search for one-way flight options from Denver to Portugal. Find affordable one-way fares based on user searches. Data last updated March 15, 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.
Wed 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.
Sun 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.
Tue 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.
Sat 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.
Wed 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.
Tue 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.
Mon 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.
Mon 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.
Sat 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.
Sat 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.
Tue 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.
Sun 4/1210:45 am
DEN
- FAO
3 stops50h 00m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$335
Find flight deals from Denver to Portugal
Keep the following information in mind while searching for Denver to Portugal flight deals. Data was last updated March 15, 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 Denver 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 March 15, 2026.
Use the filters below to find and compare flights from Denver to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Tue 4/7
6:40 am-8:50 am
2 stops19h 10m
Lisbon Humberto Delgado
Tue 4/21
5:00 am-8:19 pm
2 stops22h 19m
$689
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Tue 4/7
11:35 am-3:25 pm
2 stops20h 50m
Porto
Tue 4/14
5:00 am-10:06 pm
2 stops24h 06m
$722
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Wed 8/12
11:25 am-7:00 am
1 stop12h 35m
Porto
Tue 8/25
12:15 pm-10:33 am
1 stop29h 18m
$731
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Thu 4/9
4:05 pm-10:45 pm
1 stop23h 40m
Lisbon Humberto Delgado
Wed 4/15
6:45 am-10:15 pm
2 stops22h 30m
$736
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Tue 4/28
8:25 pm-10:45 pm
1 stop19h 20m
Lisbon Humberto Delgado
Mon 5/4
7:25 am-10:19 pm
2 stops21h 54m
$737
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Wed 4/29
11:45 am-2:35 pm
2 stops19h 50m
Lisbon Humberto Delgado
Mon 5/4
5:00 am-9:27 pm
2 stops23h 27m
$744
Quickest round-trip
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Mon 4/27
4:05 pm-1:40 pm
1 stop14h 35m
Lisbon Humberto Delgado
Mon 5/4
1:00 pm-8:28 pm
1 stop14h 28m
$747
DenverPorto
DEN - OPO
DENOPO
Denver Intl
Tue 4/14
11:45 am-3:25 pm
2 stops20h 40m
Porto
Sun 4/19
5:55 am-11:19 pm
2 stops24h 24m
$779
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Sat 4/18
8:25 pm-10:45 pm
1 stop19h 20m
Lisbon Humberto Delgado
Sat 4/25
5:05 am-11:59 pm
2 stops25h 54m
$787
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Wed 9/2
6:00 am-3:35 pm
2 stops26h 35m
Lisbon Humberto Delgado
Wed 9/16
4:45 pm-6:25 pm
1 stop32h 40m
$819
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Denver to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Denver with our price prediction graph.
DEN-LIS
DEN-OPO
DEN-FAO
DEN-FNC
DEN-PDL
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 Denver to Portugal
DEN-PT0
DEN-LIS
DEN-OPO
DEN-FAO
DEN-FNC
What is the cheapest month to book a flight from Denver to Portugal?
Currently, November is the cheapest month in which you can book a flight from Denver to Portugal (average of $503). Flying from Denver 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.
Reviews of airlines servicing Portugal
Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated March 15, 2026.
See what other customers who have flown with United Airlines,Turkish Airlines, andAir Canada from Denver to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Denver to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Denver to Portugal
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Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Denver to Portugal by cabin class
Find flights from Denver to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Denver and Portugal flights
Browse other Denver and Portugal flight options. Last updated on March 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Denver to Portugal flights
Consider these flights traveling from Denver to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 10 airlines flying from Denver to Portugal
Discover the top 10 airlines that operate flights from Denver 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 March 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$458 | Average$668 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$555 | Average$818 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$559 | Average$949 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$574 | Average$1,199 | FlexibilityNo cancel fee | On-time69% | |
| 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% |