$383+ Cheap flights from Portugal to Denver (DEN)
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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
Apr 16 — Apr 231
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from 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 March 17, 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 March 17, 2026.
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.
Fri 5/19:25 am
LIS
- DEN
1 stop15h 50m
Multiple Airlines
Sat 5/168:00 pm
DEN
- LIS
1 stop18h 55m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$786
This Rumbo 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:15 pm
LIS
- DEN
2 stops33h 04m
Scandinavian Airlines
Sat 5/166:30 am
DEN
- LIS
2 stops26h 30m
Scandinavian Airlines
Deal found 3/15![Scandinavian Airlines logo]()
$800
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.
Thu 4/235:05 am
LIS
- DEN
1 stop15h 30m
United Airlines
Sun 5/37:50 am
DEN
- LIS
1 stop19h 40m
United Airlines
Deal found 3/12![United Airlines logo]()
$883
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 am
LIS
- DEN
1 stop17h 35m
Lufthansa
Tue 5/53:52 pm
DEN
- LIS
1 stop11h 38m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$884
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.
Tue 4/286:30 am
LIS
- DEN
2 stops35h 50m
Multiple Airlines
Tue 5/54:05 pm
DEN
- LIS
1 stop14h 35m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$886
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Mon 5/43:52 pm
DEN
- LIS
1 stop11h 38m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$889
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:05 am
LIS
- DEN
1 stop15h 30m
Lufthansa
Mon 5/188:25 pm
DEN
- LIS
1 stop19h 20m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$890
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 11/265:00 am
LIS
- DEN
1 stop18h 00m
United Airlines
Mon 11/301:45 pm
DEN
- LIS
1 stop13h 30m
United Airlines
Deal found 3/15![United Airlines logo]()
$893
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:55 am
FNC
- DEN
2 stops19h 00m
Air Canada
Mon 11/161:25 pm
DEN
- FNC
2 stops17h 10m
Air Canada
Deal found 3/16![Air Canada logo]()
$1,295
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:45 pm
FNC
- DEN
2 stops22h 35m
Multiple Airlines
Tue 5/2611:15 am
DEN
- FNC
2 stops38h 55m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$2,099
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:05 am
FNC
- DEN
2 stops21h 45m
Lufthansa
Tue 5/266:00 am
DEN
- FNC
1 stop18h 05m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$2,518
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 March 17, 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 March 17, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:25 am
LIS
- DEN
1 stop15h 50m
Multiple Airlines
Sat 5/168:00 pm
DEN
- LIS
1 stop18h 55m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$787
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.
Thu 4/237:25 am
LIS
- DEN
2 stops19h 04m
United Airlines
Sun 5/35:40 pm
DEN
- LIS
1 stop14h 50m
United Airlines
Deal found 3/12![United Airlines logo]()
$893
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.
Sat 4/45:00 am
LIS
- DEN
2 stops23h 46m
Delta
Sat 4/186:40 am
DEN
- LIS
1 stop18h 20m
Delta
Deal found 3/16![Delta logo]()
$942
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:25 am
LIS
- DEN
1 stop14h 35m
Air Canada
Sat 5/164:13 pm
DEN
- LIS
2 stops36h 32m
Air Canada
Deal found 3/16![Air Canada logo]()
$954
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 4/45:05 am
LIS
- DEN
1 stop17h 35m
United Airlines
Sat 4/183:55 pm
DEN
- LIS
1 stop11h 40m
United Airlines
Deal found 3/14![United Airlines logo]()
$906
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.
Fri 5/110:00 am
LIS
- DEN
2 stops21h 36m
Delta
Sat 5/169:12 am
DEN
- LIS
2 stops15h 48m
Delta
Deal found 3/16![Delta logo]()
$960
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:25 am
LIS
- DEN
1 stop37h 10m
United Airlines
Sat 5/166:00 am
DEN
- LIS
1 stop21h 35m
United Airlines
Deal found 3/16![United Airlines logo]()
$913
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:05 am
FNC
- DEN
2 stops21h 45m
Lufthansa
Tue 5/266:00 am
DEN
- FNC
1 stop18h 05m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$2,518
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:45 pm
FNC
- DEN
2 stops22h 35m
Multiple Airlines
Tue 5/2611:15 am
DEN
- FNC
2 stops38h 55m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$2,099
Last-minute flights from Portugal to DenverDiscover last-minute flight deals from Portugal to Denver. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to Denver. Data last updated March 17, 2026 and is based on user searches.
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.
Wed 3/254:05 pm
LIS
- DEN
1 stop32h 30m
Turkish Airlines
Tue 4/78:25 pm
DEN
- LIS
1 stop36h 10m
Turkish Airlines
Deal found 3/15![Turkish Airlines logo]()
$921
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:05 am
LIS
- DEN
1 stop17h 35m
United Airlines
Sat 4/183:55 pm
DEN
- LIS
1 stop11h 40m
United Airlines
Deal found 3/16![United Airlines logo]()
$906
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:05 am
LIS
- DEN
1 stop15h 30m
Lufthansa
Wed 4/294:05 pm
DEN
- LIS
1 stop14h 35m
Lufthansa
Deal found 3/16![Lufthansa logo]()
$893
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.
Thu 4/235:05 am
LIS
- DEN
1 stop15h 30m
United Airlines
Sun 5/37:50 am
DEN
- LIS
1 stop19h 40m
United Airlines
Deal found 3/12![United Airlines logo]()
$883
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 4/265:55 am
LIS
- DEN
2 stops36h 25m
Multiple Airlines
Sun 5/38:00 pm
DEN
- LIS
1 stop30h 00m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$912
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.
Sun 4/266:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Sun 5/35:40 pm
DEN
- LIS
1 stop14h 50m
Lufthansa
Deal found 3/12![Lufthansa logo]()
$915
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:25 am
LIS
- DEN
1 stop15h 15m
Lufthansa
Mon 5/43:52 pm
DEN
- LIS
1 stop11h 38m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$889
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 4/2710:30 pm
LIS
- DEN
2 stops43h 50m
Multiple Airlines
Mon 5/44:05 pm
DEN
- LIS
1 stop14h 35m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$895
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 am
LIS
- DEN
1 stop17h 35m
Lufthansa
Tue 5/53:52 pm
DEN
- LIS
1 stop11h 38m
Lufthansa
Deal found 3/13![Lufthansa logo]()
$884
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.
Tue 4/286:30 am
LIS
- DEN
2 stops35h 50m
Multiple Airlines
Tue 5/54:05 pm
DEN
- LIS
1 stop14h 35m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$886
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:45 am
LIS
- DEN
1 stop15h 55m
Lufthansa
Wed 5/68:25 pm
DEN
- LIS
1 stop19h 20m
Lufthansa
Deal found 3/15![Lufthansa logo]()
$899
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 March 17, 2026.
Search for one-way flight options from Portugal to Denver. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
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 6/110:55 pm
LIS
- DEN
3 stops52h 11m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$383
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:35 am
LIS
- DEN
2 stops33h 27m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$407
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:45 pm
LIS
- DEN
3 stops32h 07m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$426
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.
Fri 4/172:20 pm
LIS
- DEN
3 stops50h 25m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$447
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.
Wed 4/89:40 am
LIS
- DEN
3 stops57h 29m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$463
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.
Tue 5/196:30 am
LIS
- DEN
3 stops39h 02m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$464
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.
Wed 6/175:55 am
LIS
- DEN
3 stops36h 25m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$475
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.
Sun 4/199:40 am
LIS
- DEN
3 stops31h 00m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$477
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/269:15 pm
LIS
- DEN
3 stops52h 58m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$481
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.
Fri 6/122:10 pm
LIS
- DEN
3 stops38h 20m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$486
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.
Mon 7/137:30 am
FNC
- DEN
3 stops56h 32m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$549
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 8/264:20 pm
FNC
- DEN
3 stops37h 44m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$616
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 March 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $786 (Kiwi.com) |
One-way from | $383 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $880 |
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 2,558,603 searches. Data last updated March 17, 2026.
Use the filters below to find and compare flights from Portugal to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Fri 5/1
9:25 am-6:15 pm
1 stop15h 50m
Denver Intl
Sat 5/16
8:00 pm-9:55 pm
1 stop18h 55m
$787
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Thu 4/23
7:25 am-7:29 pm
2 stops19h 04m
Denver Intl
Sun 5/3
5:40 pm-3:30 pm
1 stop14h 50m
$893
Quickest round-trip
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Sat 4/4
5:05 am-3:40 pm
1 stop17h 35m
Denver Intl
Sat 4/18
3:55 pm-10:35 am
1 stop11h 40m
$906
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Fri 5/1
7:25 am-1:35 pm
1 stop37h 10m
Denver Intl
Sat 5/16
6:00 am-10:35 am
1 stop21h 35m
$913
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Sat 4/4
5:00 am-9:46 pm
2 stops23h 46m
Denver Intl
Sat 4/18
6:40 am-8:00 am
1 stop18h 20m
$942
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Fri 5/1
11:25 am-7:00 pm
1 stop14h 35m
Denver Intl
Sat 5/16
4:13 pm-11:45 am
2 stops36h 32m
$954
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Fri 5/1
10:00 am-12:36 am
2 stops21h 36m
Denver Intl
Sat 5/16
9:12 am-8:00 am
2 stops15h 48m
$960
FunchalDenver
FNC - DEN
FNCDEN
Funchal Madeira
Tue 5/5
10:45 pm-2:20 pm
2 stops22h 35m
Denver Intl
Tue 5/26
11:15 am-9:10 am
2 stops38h 55m
$2,099
FunchalDenver
FNC - DEN
FNCDEN
Funchal Madeira
Tue 5/5
4:05 am-6:50 pm
2 stops21h 45m
Denver Intl
Tue 5/26
6:00 am-7:05 am
1 stop18h 05m
$2,518
Cheapest one-way
LisbonDenver
LIS - DEN
LISDEN
Lisbon Humberto Delgado
Tue 5/26
9:15 pm-7:13 pm
3 stops52h 58m
$481
Showing 1-10 of 28 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
FNC-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
FNC-DEN
What is the cheapest month to book a flight from Portugal to Denver?
Currently, April is the cheapest month in which you can book a flight from Portugal to Denver (average of $750). Flying from Portugal to Denver in July is currently the most expensive (average of $935). 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 March 17, 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.
Boarding
7.7
Crew
8.1
Food
6.6
Comfort
7.3
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Boarding
7.7
Crew
8.1
Food
6.6
Comfort
7.3
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - 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
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Englewood
Fort Morgan
Brighton
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Portugal to Denver
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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 March 17, 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 March 17, 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 2,558,603 searches. Data last updated March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$920 | Average$1,083 | FlexibilityNo cancel fee | On-time69% |