$392+ Cheap flights from Portugal to Denver (DEN)
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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Find cheap flights from Portugal to Denver 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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portugal to Denver
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Cheapest flights from Portugal to DenverExplore the most affordable flight options available from Portugal to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Portugal to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Gotogate deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 12/272:00 pm -
1 stop35h 00m
Sat 1/93:40 pm -
1 stop14h 10m
Deal found 11/4![Icelandair logo]()
$764
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 pm -
2 stops36h 02m
Wed 12/93:40 pm -
1 stop14h 10m
Deal found 11/4![Multiple Airlines logo]()
$843
This Icelandair deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:00 pm -
1 stop35h 00m
Mon 12/143:40 pm -
1 stop14h 05m
Deal found 11/4![Icelandair logo]()
$871
This Kissandfly.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:45 pm -
2 stops38h 57m
Sat 12/510:29 pm -
2 stops30h 06m
Deal found 11/1![Multiple Airlines logo]()
$915
This Gotogate deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/222:10 pm -
1 stop34h 50m
Sat 12/53:40 pm -
1 stop14h 10m
Deal found 11/1![Icelandair logo]()
$921
This Cheapflightsfares deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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.
Thu 11/197:00 am -
2 stops22h 46m
Tue 12/11:01 pm -
2 stops21h 59m
Deal found 11/1![TAP AIR PORTUGAL logo]()
$959
This Gotogate deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:25 pm -
1 stop32h 00m
Mon 11/97:30 pm -
1 stop31h 25m
Deal found 11/1![Turkish Airlines logo]()
$965
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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.
Thu 11/195:00 am -
2 stops19h 10m
Tue 12/16:10 am -
2 stops21h 25m
Deal found 11/4![Delta logo]()
$987
This Air France deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:15 am -
1 stop17h 10m
Tue 12/110:46 am -
2 stops16h 49m
Deal found 11/2![Air France logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/196:00 am -
1 stop14h 40m
Tue 12/11:47 pm -
1 stop12h 43m
Deal found 11/2![United Airlines logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 12/176:00 am -
2 stops24h 53m
Thu 12/242:13 pm -
1 stop12h 17m
Deal found 11/2![United Airlines logo]()
$1,024
This Booking.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:35 pm -
1 stop14h 27m
Thu 12/248:30 pm -
1 stop20h 25m
Deal found 11/2![Multiple Airlines logo]()
$1,054
Best flights from Portugal to DenverDiscover carefully curated flight deals from Portugal to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Portugal to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Thu 2/49:55 am -
1 stop29h 33m
Sat 2/132:22 pm -
2 stops38h 13m
Deal found 10/31![Multiple Airlines logo]()
$911
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 12/55:00 am -
2 stops18h 02m
Mon 12/1412:36 pm -
2 stops19h 34m
Deal found 11/4![Delta logo]()
$995
This Gotogate deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/222:15 pm -
1 stop31h 15m
Sat 12/54:15 pm -
1 stop14h 10m
Deal found 11/2![Lufthansa logo]()
$995
This KLM deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 2/242:40 pm -
2 stops33h 49m
Mon 3/810:30 am -
2 stops20h 20m
Deal found 11/4![KLM logo]()
$1,001
This Air France deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:15 am -
1 stop17h 10m
Tue 12/111:13 am -
2 stops16h 22m
Deal found 11/1![Air France logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/196:00 am -
1 stop14h 40m
Tue 12/11:47 pm -
1 stop12h 43m
Deal found 10/31![United Airlines logo]()
$1,022
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/2210:55 am -
1 stop18h 51m
Sat 12/52:27 pm -
1 stop32h 08m
Deal found 11/1![TAP AIR PORTUGAL logo]()
$1,025
This Turkish Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:55 am -
1 stop37h 30m
Thu 12/245:50 am -
2 stops45h 05m
Deal found 11/2![Turkish Airlines logo]()
$1,100
This Scandinavian Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:00 am -
3 stops22h 25m
Tue 12/112:52 pm -
3 stops26h 38m
Deal found 10/31![Scandinavian Airlines logo]()
$1,832
This Kissandfly.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:45 pm -
2 stops38h 57m
Sat 12/510:29 pm -
2 stops30h 06m
Deal found 11/2![Multiple Airlines logo]()
$918
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/235:00 am -
2 stops22h 11m
Thu 12/311:41 am -
1 stop14h 14m
Deal found 11/2![Delta logo]()
$996
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 1/215:00 am -
1 stop15h 40m
Mon 1/259:35 am -
2 stops15h 35m
Deal found 10/31![United Airlines logo]()
$1,026
This Icelandair deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1211:35 am -
2 stops30h 09m
Sat 1/233:40 pm -
1 stop14h 10m
Deal found 11/1![Multiple Airlines logo]()
$938
This oojo deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 2/242:10 pm -
1 stop31h 20m
Mon 3/85:25 pm -
2 stops36h 55m
Deal found 11/4![Lufthansa logo]()
$1,109
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 12/65:00 am -
1 stop15h 40m
Sun 12/1311:50 am -
1 stop13h 20m
Deal found 11/4![United Airlines logo]()
$1,028
This Finnair deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 2/246:45 pm -
1 stop27h 25m
Mon 3/85:01 pm -
1 stop18h 19m
Deal found 11/4![Multiple Airlines logo]()
$1,115
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 12/1712:35 pm -
2 stops18h 18m
Thu 12/249:29 am -
2 stops17h 01m
Deal found 11/2![United Airlines logo]()
$1,175
This Booking.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:00 pm -
3 stops30h 25m
Thu 12/241:30 pm -
2 stops21h 30m
Deal found 11/2![Multiple Airlines logo]()
$1,580
Last-minute flights from Portugal to DenverDiscover last-minute flight deals from Portugal to Denver. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to Denver. Data last updated November 5, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:25 pm -
1 stop32h 00m
Mon 11/97:30 pm -
1 stop31h 25m
Deal found 11/1![Turkish Airlines logo]()
$965
This Cheapflightsfares deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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.
Thu 11/197:00 am -
2 stops22h 46m
Tue 12/11:01 pm -
2 stops21h 59m
Deal found 11/1![TAP AIR PORTUGAL logo]()
$959
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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.
Thu 11/195:00 am -
2 stops19h 10m
Tue 12/16:10 am -
2 stops21h 25m
Deal found 11/4![Delta logo]()
$987
This Air France deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:15 am -
1 stop17h 10m
Tue 12/110:46 am -
2 stops16h 49m
Deal found 11/2![Air France logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/196:00 am -
1 stop14h 40m
Tue 12/11:47 pm -
1 stop12h 43m
Deal found 11/2![United Airlines logo]()
$1,022
This Kissandfly.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:45 pm -
2 stops38h 57m
Sat 12/510:29 pm -
2 stops30h 06m
Deal found 11/1![Multiple Airlines logo]()
$915
This Gotogate deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/222:10 pm -
1 stop34h 50m
Sat 12/53:40 pm -
1 stop14h 10m
Deal found 11/1![Icelandair logo]()
$921
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 pm -
2 stops36h 02m
Wed 12/93:40 pm -
1 stop14h 10m
Deal found 11/4![Multiple Airlines logo]()
$843
This Icelandair deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:00 pm -
1 stop35h 00m
Mon 12/143:40 pm -
1 stop14h 05m
Deal found 11/4![Icelandair logo]()
$871
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 12/176:00 am -
2 stops24h 53m
Thu 12/242:13 pm -
1 stop12h 17m
Deal found 11/2![United Airlines logo]()
$1,024
This Booking.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:35 pm -
1 stop14h 27m
Thu 12/248:30 pm -
1 stop20h 25m
Deal found 11/2![Multiple Airlines logo]()
$1,054
This Gotogate deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” 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 12/272:00 pm -
1 stop35h 00m
Sat 1/93:40 pm -
1 stop14h 10m
Deal found 11/4![Icelandair logo]()
$764
One-way flights from Portugal to DenverSearch for one-way flight options from Portugal to Denver. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Portugal to Denver. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 2/37:00 pm -
3 stops51h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 2/74:55 pm -
3 stops58h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 2/64:25 pm -
3 stops52h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/249:20 am -
3 stops57h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” 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 1/274:45 pm -
3 stops47h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/2310:00 pm -
3 stops55h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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.
Thu 2/45:50 pm -
3 stops46h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” 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 1/278:55 pm -
3 stops43h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/144:00 pm -
3 stops57h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$564
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 5/41:55 pm -
3 stops36h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 11/178:40 pm -
3 stops52h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$576
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” 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 1/47:55 pm -
3 stops56h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$627
Find flight deals from Portugal to Denver
Keep the following information in mind while searching for Portugal to Denver flight deals. Data was last updated November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $754 (oojo) |
One-way from | $392 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,082 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portugal to Denver 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 November 5, 2026.
Use the filters below to find and compare flights from Portugal to Denver that are best for you.
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Cheapest round-trip
LisbonDenver
LIS Lisbon Humberto Delgado - DEN Denver Intl
LISDEN
Lisbon Humberto Delgado
Mon 11/23
10:00 pm-10:42 pm
3 stops55h 42m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$441
LisbonDenver
LIS Lisbon Humberto Delgado - DEN Denver Intl
LISDEN
Lisbon Humberto Delgado
Tue 2/9
10:00 am-9:48 pm
2 stops42h 48m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$474
PortoDenver
OPO Porto - DEN Denver Intl
OPODEN
Porto
Sat 11/14
4:00 pm-6:50 pm
3 stops57h 50m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$564
PortoDenver
OPO Porto - DEN Denver Intl
OPODEN
Porto
Mon 3/29
12:35 pm-10:13 pm
2 stops40h 38m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$638
PortoDenver
OPO Porto - DEN Denver Intl
OPODEN
Porto
Tue 11/17
6:30 am-8:29 am
2 stops32h 59m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$640
LisbonDenver
LIS Lisbon Humberto Delgado - DEN Denver Intl
LISDEN
Lisbon Humberto Delgado
Fri 4/23
6:35 am-10:35 pm
2 stops23h 00m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$657
LisbonDenver
LIS Lisbon Humberto Delgado - DEN Denver Intl
LISDEN
Lisbon Humberto Delgado
Tue 11/10
10:00 am-8:29 am
1 stop29h 29m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$662
PortoDenver
OPO Porto - DEN Denver Intl
OPODEN
Porto
Tue 5/4
12:25 pm-8:34 pm
1 stop15h 09m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$671
Quickest round-trip
LisbonDenver
LIS Lisbon Humberto Delgado - DEN Denver Intl
LISDEN
Lisbon Humberto Delgado
Fri 1/8
7:05 am-3:10 pm
1 stop15h 05m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$676
LisbonDenver
LIS Lisbon Humberto Delgado - DEN Denver Intl
LISDEN
Lisbon Humberto Delgado
Fri 4/23
11:05 am-10:47 pm
1 stop18h 42m
Denver Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$677
Showing 1-10 of 35 resultsSorted by cheapest first
Best time to book a flight from Portugal to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Portugal with our price prediction graph.
LIS-DEN
FAO-DEN
OPO-DEN
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 Portugal to Denver
PT0-DEN
LIS-DEN
FAO-DEN
OPO-DEN
What is the cheapest month to book a flight from Portugal to Denver?
Currently, February is the cheapest month in which you can book a flight from Portugal to Denver (average of $928). Flying from Portugal to Denver in June is currently the most expensive (average of $1,383). 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 Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated November 5, 2026.
Peruse reviews from past customers who have flown with United Airlines from Portugal to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.7
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Crew
8.1
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.7
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Portugal to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Broomfield
Englewood
Golden
Silverthorne
Fort Morgan
Limon
Greeley
Frisco
Winter Park
Wheat Ridge
Black Hawk
Central City
Manitou Springs
Glendale
Cripple Creek
Evergreen
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Portugal to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.
Search flights from Portugal to Denver by cabin class
Find flights from Portugal to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portugal and Denver flights
Browse other Portugal and Denver flight options. Last updated on November 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Portugal to Denver
Discover the top airline that operate flights from Portugal to Denver. 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$933 | Average$1,083 | FlexibilityNo cancel fee | On-time69% |