$343+ Cheap flights from Denver (DEN) to Lisbon (LIS)
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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
Jun 16 — Jun 231
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Lisbon with Cheapflights
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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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Last-minute
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Cheapest flights from Denver to LisbonExplore the most affordable flight options available from Denver to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.
Explore the most affordable flight options available from Denver to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 pm
DEN
- LIS
2 stops32h 55m
Multiple Airlines
Tue 11/175:00 am
LIS
- DEN
1 stop18h 00m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$864
This Cheapflightsfares deal was found by Cheapflights users on 5/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:40 pm
DEN
- LIS
1 stop14h 00m
British Airways
Thu 11/1911:05 am
LIS
- DEN
1 stop18h 58m
British Airways
Deal found 5/13![British Airways logo]()
$865
This Air Canada deal was found by Cheapflights users on 5/16. 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.
Sun 11/11:25 pm
DEN
- LIS
1 stop14h 35m
Air Canada
Tue 11/1011:20 am
LIS
- DEN
2 stops34h 03m
Air Canada
Deal found 5/16![Air Canada logo]()
$866
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:42 pm
DEN
- LIS
2 stops22h 48m
Lufthansa
Fri 11/205:00 am
LIS
- DEN
1 stop18h 00m
Lufthansa
Deal found 5/15![Lufthansa logo]()
$868
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:25 pm
DEN
- LIS
1 stop17h 15m
American Airlines
Sat 11/711:05 am
LIS
- DEN
2 stops19h 51m
American Airlines
Deal found 5/17![American Airlines logo]()
$869
This Air Canada deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:15 am
DEN
- LIS
2 stops16h 45m
Air Canada
Tue 11/1711:20 am
LIS
- DEN
2 stops34h 03m
Air Canada
Deal found 5/15![Air Canada logo]()
$870
This Air Canada deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:40 pm
DEN
- LIS
2 stops31h 10m
Air Canada
Wed 11/181:00 pm
LIS
- DEN
2 stops33h 56m
Air Canada
Deal found 5/15![Air Canada logo]()
$871
This Iberia deal was found by Cheapflights users on 5/16. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:03 am
DEN
- LIS
2 stops16h 37m
Multiple Airlines
Mon 11/28:20 am
LIS
- DEN
2 stops20h 28m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$873
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:20 pm
DEN
- LIS
1 stop24h 10m
Lufthansa
Fri 11/205:00 am
LIS
- DEN
2 stops25h 03m
Lufthansa
Deal found 5/15![Lufthansa logo]()
$874
This British Airways deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:25 pm
DEN
- LIS
1 stop21h 30m
British Airways
Mon 11/96:35 pm
LIS
- DEN
1 stop27h 55m
British Airways
Deal found 5/16![British Airways logo]()
$875
This British Airways deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:25 pm
DEN
- LIS
1 stop17h 30m
British Airways
Wed 11/187:05 am
LIS
- DEN
1 stop15h 25m
British Airways
Deal found 5/12![British Airways logo]()
$876
Best flights from Denver to LisbonDiscover carefully curated flight deals from Denver to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
Discover carefully curated flight deals from Denver to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
This British Airways deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:25 pm
DEN
- LIS
1 stop17h 30m
British Airways
Wed 11/187:05 am
LIS
- DEN
1 stop15h 25m
British Airways
Deal found 5/12![British Airways logo]()
$876
This Delta deal was found by Cheapflights users on 5/12. 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 11/411:00 am
DEN
- LIS
2 stops15h 00m
Delta
Fri 11/1310:00 am
LIS
- DEN
2 stops19h 17m
Delta
Deal found 5/12![Delta logo]()
$887
This Turkish Airlines deal was found by Cheapflights users on 5/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
DEN
- LIS
2 stops50h 45m
Turkish Airlines
Wed 9/234:45 pm
LIS
- DEN
1 stop32h 40m
Turkish Airlines
Deal found 5/13![Turkish Airlines logo]()
$914
This Turkish Airlines deal was found by Cheapflights users on 5/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:15 pm
DEN
- LIS
2 stops25h 05m
Multiple Airlines
Wed 9/164:45 pm
LIS
- DEN
1 stop32h 40m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,004
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sun 10/47:05 pm
DEN
- LIS
1 stop32h 25m
United Airlines
Sun 10/181:00 pm
LIS
- DEN
1 stop28h 22m
United Airlines
Deal found 5/12![United Airlines logo]()
$1,037
This British Airways deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:27 pm
DEN
- LIS
2 stops16h 38m
British Airways
Sat 11/1411:05 am
LIS
- DEN
2 stops18h 17m
British Airways
Deal found 5/12![British Airways logo]()
$891
This Delta deal was found by Cheapflights users on 5/14. 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.
Sat 10/312:59 am
DEN
- LIS
2 stops24h 01m
Delta
Wed 11/45:30 am
LIS
- DEN
2 stops19h 48m
Delta
Deal found 5/14![Delta logo]()
$937
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Fri 7/179:40 am
DEN
- LIS
1 stop16h 40m
United Airlines
Tue 7/286:15 am
LIS
- DEN
2 stops21h 07m
United Airlines
Deal found 5/13![United Airlines logo]()
$1,040
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 8/512:54 pm
DEN
- LIS
2 stops19h 01m
Delta
Fri 8/145:00 am
LIS
- DEN
2 stops20h 18m
Delta
Deal found 5/17![Delta logo]()
$987
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 7/46:10 pm
DEN
- LIS
1 stop33h 55m
United Airlines
Mon 7/1311:25 am
LIS
- DEN
2 stops31h 55m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,046
This Delta deal was found by Cheapflights users on 5/12. 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 8/2611:05 am
DEN
- LIS
2 stops17h 10m
Delta
Sun 9/611:55 am
LIS
- DEN
2 stops18h 50m
Delta
Deal found 5/12![Delta logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Fri 9/49:40 am
DEN
- LIS
1 stop16h 40m
United Airlines
Fri 9/1811:25 am
LIS
- DEN
1 stop14h 21m
United Airlines
Deal found 5/15![United Airlines logo]()
$1,055
Last-minute flights from Denver to LisbonDiscover last-minute flight deals from Denver to Lisbon. Data last updated May 17, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Lisbon. Data last updated May 17, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 6/16:10 pm
DEN
- LIS
2 stops29h 20m
Multiple Airlines
Mon 6/811:35 am
LIS
- DEN
2 stops30h 45m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,006
This Cheapflightsfares deal was found by Cheapflights users on 5/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:10 pm
DEN
- LIS
1 stop18h 10m
Icelandair
Thu 6/1110:20 pm
LIS
- DEN
1 stop21h 20m
Icelandair
Deal found 5/13![Icelandair logo]()
$946
This Mytrip deal was found by Cheapflights users on 5/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:10 pm
DEN
- LIS
2 stops29h 20m
Multiple Airlines
Thu 6/189:25 am
LIS
- DEN
2 stops32h 55m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$964
This Mytrip deal was found by Cheapflights users on 5/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:10 pm
DEN
- LIS
2 stops29h 20m
Multiple Airlines
Thu 6/189:25 am
LIS
- DEN
2 stops32h 55m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$965
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:10 pm
DEN
- LIS
2 stops29h 20m
Multiple Airlines
Sat 6/208:15 am
LIS
- DEN
3 stops34h 05m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,015
This Mytrip deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:10 pm
DEN
- LIS
2 stops29h 20m
Multiple Airlines
Tue 6/238:15 am
LIS
- DEN
3 stops34h 05m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$958
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/237:40 am
DEN
- LIS
1 stop20h 40m
Multiple Airlines
Thu 7/26:10 am
LIS
- DEN
2 stops34h 06m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$975
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/237:40 am
DEN
- LIS
1 stop20h 40m
Multiple Airlines
Mon 6/296:15 am
LIS
- DEN
2 stops34h 01m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,004
One-way flights from Denver to LisbonSearch for one-way flight options from Denver to Lisbon. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
Search for one-way flight options from Denver to Lisbon. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 10/134:40 pm
DEN
- LIS
2 stops39h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$343
This Cheapflightsfares deal was found by Cheapflights users on 5/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:35 pm
DEN
- LIS
1 stop21h 25m
British Airways
Deal found 5/13![British Airways logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 8/178:10 pm
DEN
- LIS
3 stops41h 35m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/154:40 pm
DEN
- LIS
2 stops23h 50m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 10/94:40 pm
DEN
- LIS
3 stops32h 50m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 9/118:10 pm
DEN
- LIS
3 stops44h 25m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Thu 9/174:40 pm
DEN
- LIS
3 stops40h 20m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 8/114:40 pm
DEN
- LIS
3 stops42h 45m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$390
Find flight deals from Denver to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $864 (FlightHub) |
One-way from | $343 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,086 |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Lisbon 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 May 17, 2026.
Use the filters below to find and compare flights from Denver to Lisbon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Fri 11/6
5:25 pm-5:55 pm
1 stop17h 30m
Lisbon Humberto Delgado
Wed 11/18
7:05 am-3:30 pm
1 stop15h 25m
$876
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Wed 11/4
11:00 am-9:00 am
2 stops15h 00m
Lisbon Humberto Delgado
Fri 11/13
10:00 am-10:17 pm
2 stops19h 17m
$887
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Tue 11/3
12:27 pm-12:05 pm
2 stops16h 38m
Lisbon Humberto Delgado
Sat 11/14
11:05 am-10:22 pm
2 stops18h 17m
$891
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Wed 9/9
6:00 am-3:45 pm
2 stops50h 45m
Lisbon Humberto Delgado
Wed 9/23
4:45 pm-6:25 pm
1 stop32h 40m
$914
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Sat 10/3
12:59 am-8:00 am
2 stops24h 01m
Lisbon Humberto Delgado
Wed 11/4
5:30 am-6:18 pm
2 stops19h 48m
$937
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Wed 8/5
12:54 pm-2:55 pm
2 stops19h 01m
Lisbon Humberto Delgado
Fri 8/14
5:00 am-6:18 pm
2 stops20h 18m
$987
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Thu 9/10
3:15 pm-11:20 pm
2 stops25h 05m
Lisbon Humberto Delgado
Wed 9/16
4:45 pm-6:25 pm
1 stop32h 40m
$1,004
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Sun 10/4
7:05 pm-10:30 am
1 stop32h 25m
Lisbon Humberto Delgado
Sun 10/18
1:00 pm-10:22 am
1 stop28h 22m
$1,037
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Fri 7/17
9:40 am-9:20 am
1 stop16h 40m
Lisbon Humberto Delgado
Tue 7/28
6:15 am-8:22 pm
2 stops21h 07m
$1,040
DenverLisbon
DEN - LIS
DENLIS
Denver Intl
Sat 7/4
6:10 pm-11:05 am
1 stop33h 55m
Lisbon Humberto Delgado
Mon 7/13
11:25 am-12:20 pm
2 stops31h 55m
$1,046
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Denver to Lisbon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Lisbon in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Denver to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from Denver with our price prediction graph.
DEN-LIS
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 Lisbon
How far ahead should I book a flight from Denver to Lisbon?
Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Denver to Lisbon?
Currently, January is the cheapest month in which you can book a flight from Denver to Lisbon (average of $624). Flying from Denver to Lisbon in June is currently the most expensive (average of $1,313). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Denver to Lisbon?
Reviews of airlines servicing Lisbon
Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated May 17, 2026.
See what other customers who have flown with Turkish Airlines,United Airlines, andAir Canada from Denver to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.3
Entertainment
7.5
Food
7.5
Comfort
7.3
Crew
7.8
Overall
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,May 2026
DEN - IST
Boarding
7.3
Entertainment
7.5
Food
7.5
Comfort
7.3
Crew
7.8
Overall
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,May 2026
DEN - IST
Boarding
7.3
Entertainment
7.5
Food
7.5
Comfort
7.3
Crew
7.8
Overall
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,May 2026
DEN - IST
Boarding
7.3
Entertainment
7.5
Food
7.5
Comfort
7.3
Crew
7.8
Overall
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,May 2026
DEN - IST
Boarding
7.3
Entertainment
7.5
Food
7.5
Comfort
7.3
Crew
7.8
Overall
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,May 2026
DEN - IST
Boarding
7.3
Entertainment
7.5
Food
7.5
Comfort
7.3
Crew
7.8
Overall
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,May 2026
DEN - IST
Related info for your journey
Find useful and relevant information for your journey from Denver to Lisbon. 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 Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsFátima
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra
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Other flights to Lisbon
Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 17, 2026.
Denver and Lisbon flights
Browse other Denver and Lisbon flight options. Last updated on May 17, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on May 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Denver to Lisbon
Discover the top 10 airlines that operate flights from Denver to Lisbon. 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 May 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$410 | Average$719 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$559 | Average$898 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$575 | Average$992 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$578 | Average$982 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$596 | Average$986 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$599 | Average$764 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$603 | Average$984 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$606 | Average$826 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$630 | Average$776 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$640 | Average$726 | FlexibilityNo cancel fee | On-time77% |