$278+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Lisbon 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Denver to Lisbon
Cheapest
Best
Last-minute
One-way
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 August 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 August 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/93:40 pm -
1 stop14h 10m
Tue 1/1911:35 am -
1 stop13h 25m
Deal found 8/14![Icelandair logo]()
$675
This Gotogate deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:40 pm -
1 stop14h 10m
Sun 11/152:00 pm -
1 stop35h 00m
Deal found 8/14![Icelandair logo]()
$682
This Gotogate deal was found by Cheapflights users on 8/16. 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.
Mon 10/126:05 pm -
1 stop34h 00m
Wed 11/115:00 am -
1 stop17h 35m
Deal found 8/16![Multiple Airlines logo]()
$706
This oojo deal was found by Cheapflights users on 8/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:15 pm -
1 stop14h 15m
Fri 11/65:00 am -
1 stop17h 35m
Deal found 8/14![Lufthansa logo]()
$708
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:40 pm -
1 stop14h 10m
Sun 11/152:00 pm -
1 stop35h 00m
Deal found 8/12![Icelandair logo]()
$709
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:01 pm -
1 stop14h 54m
Mon 12/74:10 pm -
2 stops34h 43m
Deal found 8/14![Multiple Airlines logo]()
$710
This Travelocity deal was found by Cheapflights users on 8/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:20 am -
1 stop12h 35m
Fri 11/2711:20 am -
1 stop16h 07m
Deal found 8/16![Air Canada logo]()
$712
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:20 am -
1 stop12h 35m
Fri 11/2711:20 am -
1 stop16h 07m
Deal found 8/14![Multiple Airlines logo]()
$716
This oojo deal was found by Cheapflights users on 8/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:15 pm -
1 stop14h 15m
Mon 12/72:20 pm -
1 stop31h 10m
Deal found 8/14![Lufthansa logo]()
$720
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 10/1411:25 am -
1 stop14h 55m
Wed 11/45:00 am -
1 stop15h 40m
Deal found 8/13![United Airlines logo]()
$723
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 August 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 August 17, 2026.
This United deal was found by Cheapflights users on 8/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:25 am -
1 stop14h 55m
Wed 10/285:00 am -
1 stop15h 25m
Deal found 8/15![Multiple Airlines logo]()
$754
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:35 am -
2 stops19h 15m
Thu 11/195:00 am -
2 stops25h 24m
Deal found 8/12![Delta logo]()
$770
This British Airways deal was found by Cheapflights users on 8/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:35 pm -
1 stop16h 20m
Mon 10/126:45 pm -
1 stop28h 40m
Deal found 8/17![British Airways logo]()
$832
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/309:40 am -
1 stop16h 40m
Thu 10/155:05 am -
1 stop17h 35m
Deal found 8/17![United Airlines logo]()
$875
This Scandinavian Airlines deal was found by Cheapflights users on 8/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:30 am -
3 stops26h 35m
Sat 11/147:05 am -
2 stops21h 49m
Deal found 8/15![Scandinavian Airlines logo]()
$1,203
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:00 pm -
2 stops16h 10m
Sat 11/75:00 am -
2 stops19h 47m
Deal found 8/13![Delta logo]()
$790
This Delta deal was found by Cheapflights users on 8/14. 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.
Wed 10/76:30 am -
2 stops19h 20m
Wed 10/145:00 am -
2 stops17h 49m
Deal found 8/14![Delta logo]()
$800
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 12/71:25 pm -
2 stops13h 55m
Fri 12/115:00 am -
1 stop17h 35m
Deal found 8/16![United Airlines logo]()
$1,019
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:35 am -
2 stops19h 15m
Tue 10/135:00 am -
2 stops20h 09m
Deal found 8/13![Delta logo]()
$860
This British Airways deal was found by Cheapflights users on 8/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:35 pm -
1 stop21h 30m
Sun 10/185:10 pm -
1 stop30h 15m
Deal found 8/13![British Airways logo]()
$1,044
This Delta deal was found by Cheapflights users on 8/16. 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.
Tue 9/153:58 pm -
2 stops18h 52m
Wed 9/305:35 am -
1 stop17h 05m
Deal found 8/16![Delta logo]()
$982
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 9/116:35 am -
2 stops19h 15m
Fri 9/185:00 am -
2 stops23h 32m
Deal found 8/14![Delta logo]()
$1,055
Last-minute flights from Denver to LisbonDiscover last-minute flight deals from Denver to Lisbon. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Lisbon. Data last updated August 17, 2026 and is based on user searches.
This Iberia deal was found by Cheapflights users on 8/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:40 pm -
1 stop21h 20m
Thu 11/198:20 am -
2 stops21h 43m
Deal found 8/13![Multiple Airlines logo]()
$762
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 9/226:40 pm -
1 stop21h 20m
Thu 11/197:00 am -
1 stop15h 10m
Deal found 8/13![British Airways logo]()
$767
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:15 pm -
2 stops19h 40m
Thu 11/195:00 am -
2 stops21h 59m
Deal found 8/14![Delta logo]()
$770
This Finnair deal was found by Cheapflights users on 8/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:27 pm -
2 stops25h 58m
Thu 11/196:30 am -
2 stops20h 29m
Deal found 8/14![Finnair logo]()
$777
This Delta deal was found by Cheapflights users on 8/14. 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.
Wed 9/235:40 pm -
1 stop17h 10m
Thu 10/15:00 am -
2 stops22h 15m
Deal found 8/14![Delta logo]()
$795
This Gotogate deal was found by Cheapflights users on 8/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:05 pm -
1 stop33h 55m
Wed 10/142:30 pm -
1 stop30h 50m
Deal found 8/15![Multiple Airlines logo]()
$774
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Sun 9/276:00 am -
1 stop19h 20m
Wed 10/146:15 am -
1 stop19h 30m
Deal found 8/15![United Airlines logo]()
$786
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:25 am -
1 stop14h 55m
Tue 10/1311:25 am -
2 stops15h 52m
Deal found 8/15![Air Canada logo]()
$780
This Gotogate deal was found by Cheapflights users on 8/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:25 am -
1 stop14h 55m
Tue 10/1311:25 am -
1 stop30h 06m
Deal found 8/15![Multiple Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 9/308:25 pm -
1 stop19h 20m
Thu 10/157:25 am -
1 stop15h 15m
Deal found 8/14![United Airlines logo]()
$788
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 9/308:25 pm -
1 stop19h 20m
Wed 10/146:15 am -
1 stop19h 30m
Deal found 8/14![United Airlines logo]()
$789
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 August 17, 2026.
Search for one-way flight options from Denver to Lisbon. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/197:10 pm -
3 stops43h 55m
Deal found 8/13![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:55 pm -
3 stops41h 15m
Deal found 8/13![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Wed 10/214:40 pm -
3 stops46h 25m
Deal found 8/12![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Sat 12/511:00 am -
3 stops49h 10m
Deal found 8/14![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Sat 10/241:10 pm -
2 stops40h 00m
Deal found 8/16![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Sun 12/63:40 pm -
2 stops34h 15m
Deal found 8/14![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 12/43:40 pm -
2 stops22h 40m
Deal found 8/14![Multiple Airlines logo]()
$359
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 12/15:01 pm -
1 stop21h 49m
Deal found 8/13![British Airways logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/1010:30 am -
3 stops49h 35m
Deal found 8/13![Multiple Airlines logo]()
$365
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 August 17, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $675 (Cheapflightsfares) |
One-way from | $278 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $986 |
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 August 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
Quickest round-trip
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Mon 10/19
11:25 am-9:20 am
1 stop14h 55m
Lisbon Humberto Delgado
Wed 10/28
5:00 am-2:25 pm
1 stop15h 25m
$754
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Tue 9/22
6:35 am-8:50 am
2 stops19h 15m
Lisbon Humberto Delgado
Thu 11/19
5:00 am-11:24 pm
2 stops25h 24m
$770
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Tue 10/27
5:00 pm-3:10 pm
2 stops16h 10m
Lisbon Humberto Delgado
Sat 11/7
5:00 am-5:47 pm
2 stops19h 47m
$790
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Wed 10/7
6:30 am-8:50 am
2 stops19h 20m
Lisbon Humberto Delgado
Wed 10/14
5:00 am-3:49 pm
2 stops17h 49m
$800
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Tue 10/6
6:35 pm-5:55 pm
1 stop16h 20m
Lisbon Humberto Delgado
Mon 10/12
6:45 pm-4:25 pm
1 stop28h 40m
$832
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Fri 10/2
6:35 am-8:50 am
2 stops19h 15m
Lisbon Humberto Delgado
Tue 10/13
5:00 am-6:09 pm
2 stops20h 09m
$860
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Wed 9/30
9:40 am-9:20 am
1 stop16h 40m
Lisbon Humberto Delgado
Thu 10/15
5:05 am-3:40 pm
1 stop17h 35m
$875
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Tue 9/15
3:58 pm-5:50 pm
2 stops18h 52m
Lisbon Humberto Delgado
Wed 9/30
5:35 am-3:40 pm
1 stop17h 05m
$982
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Mon 12/7
1:25 pm-10:20 am
2 stops13h 55m
Lisbon Humberto Delgado
Fri 12/11
5:00 am-3:35 pm
1 stop17h 35m
$1,019
DenverLisbon
DEN Denver Intl - LIS Lisbon Humberto Delgado
DENLIS
Denver Intl
Thu 10/8
6:35 pm-11:05 pm
1 stop21h 30m
Lisbon Humberto Delgado
Sun 10/18
5:10 pm-4:25 pm
1 stop30h 15m
$1,044
Showing 1-10 of 22 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 August.
| 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Denver-Lisbon flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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 $628). Flying from Denver to Lisbon in June is currently the most expensive (average of $1,338). 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?
Airfare is below average for this route at the moment.
Denver to Lisbon flights typically cost between $774 and $1,085 in December.The cheapest round-trip price found within the last 5 days was $675 on Icelandair (Dec 9-Jan 19).
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 August 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.
Crew
7.8
Boarding
7.3
Overall
7.4
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Boarding
7.3
Overall
7.4
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Boarding
7.3
Overall
7.4
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Boarding
7.3
Overall
7.4
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Boarding
7.3
Overall
7.4
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Boarding
7.3
Overall
7.4
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - 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
Torres Vedras
Beja
Nazaré
Colares
Sesimbra
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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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$464 | Average$563 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$559 | Average$940 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$575 | Average$1,179 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$575 | Average$941 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$575 | Average$883 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$575 | Average$1,016 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$575 | Average$776 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$592 | Average$739 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$632 | Average$893 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$635 | Average$740 | FlexibilityNo cancel fee | On-time77% |