$269+ Cheap flights from Portland (PDX) to Lisbon (LIS)
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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from Portland 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
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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 Portland to Lisbon
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Best
Last-minute
One-way
Cheapest flights from Portland to LisbonExplore the most affordable flight options available from Portland to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from Portland to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This Gotogate deal was found by Cheapflights users on 9/21. 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 10/313:45 pm -
1 stop14h 05m
Sun 11/152:00 pm -
1 stop35h 00m
Deal found 9/21![Icelandair logo]()
$543
This oojo deal was found by Cheapflights users on 9/19. 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 11/22:45 pm -
1 stop14h 05m
Tue 11/172:00 pm -
1 stop35h 00m
Deal found 9/19![Icelandair logo]()
$547
This oojo deal was found by Cheapflights users on 9/18. 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 11/162:45 pm -
1 stop14h 05m
Thu 11/262:00 pm -
1 stop35h 00m
Deal found 9/18![Icelandair logo]()
$548
This Icelandair deal was found by Cheapflights users on 9/18. 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.
Sat 11/72:45 pm -
1 stop14h 05m
Tue 11/172:00 pm -
1 stop35h 00m
Deal found 9/18![Icelandair logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:30 am -
1 stop17h 35m
Tue 11/1712:50 pm -
2 stops39h 25m
Deal found 9/22![United Airlines logo]()
$595
This FlightHub deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:00 am -
2 stops40h 40m
Wed 11/1811:20 am -
2 stops35h 21m
Deal found 9/18![Lufthansa logo]()
$597
This Justfly.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:00 am -
2 stops39h 20m
Fri 12/411:20 am -
2 stops39h 23m
Deal found 9/19![Air Canada logo]()
$599
This United Airlines deal was found by Cheapflights users on 9/22. 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 11/88:30 am -
1 stop17h 35m
Wed 11/1811:20 am -
2 stops32h 27m
Deal found 9/22![United Airlines logo]()
$600
This FlightHub deal was found by Cheapflights users on 9/18. 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.
Mon 11/1610:00 am -
2 stops15h 20m
Thu 11/268:55 am -
2 stops19h 51m
Deal found 9/18![Multiple Airlines logo]()
$601
This Iberia deal was found by Cheapflights users on 9/19. 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.
Wed 11/115:45 pm -
1 stop20h 10m
Mon 11/168:45 pm -
2 stops22h 21m
Deal found 9/19![Multiple Airlines logo]()
$602
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:10 am -
2 stops39h 10m
Tue 11/106:05 am -
2 stops20h 04m
Deal found 9/19![Lufthansa logo]()
$604
Best flights from Portland to LisbonDiscover carefully curated flight deals from Portland to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from Portland to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:30 am -
1 stop17h 35m
Wed 11/1811:20 am -
2 stops39h 52m
Deal found 9/19![United Airlines logo]()
$600
This Finnair deal was found by Cheapflights users on 9/20. 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.
Mon 1/185:45 pm -
1 stop17h 05m
Thu 1/286:30 am -
2 stops23h 45m
Deal found 9/20![Multiple Airlines logo]()
$608
This KLM deal was found by Cheapflights users on 9/21. 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.
Sun 11/87:00 am -
1 stop17h 00m
Sun 11/155:00 am -
1 stop14h 40m
Deal found 9/21![KLM logo]()
$667
This United Airlines deal was found by Cheapflights users on 9/18. 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 11/167:10 am -
2 stops19h 10m
Thu 11/2612:20 pm -
1 stop15h 55m
Deal found 9/18![United Airlines logo]()
$620
This Finnair deal was found by Cheapflights users on 9/21. 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.
Fri 1/155:45 pm -
1 stop16h 10m
Tue 1/198:45 pm -
2 stops32h 13m
Deal found 9/21![Multiple Airlines logo]()
$669
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/97:00 am -
2 stops19h 05m
Tue 3/1610:15 am -
1 stop18h 06m
Deal found 9/18![United Airlines logo]()
$625
This KLM deal was found by Cheapflights users on 9/22. 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.
Mon 10/121:05 pm -
1 stop13h 50m
Mon 10/197:45 pm -
1 stop23h 25m
Deal found 9/22![KLM logo]()
$755
This KLM deal was found by Cheapflights users on 9/19. 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.
Thu 1/147:00 am -
2 stops20h 25m
Mon 1/2510:00 am -
1 stop19h 27m
Deal found 9/19![Multiple Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 9/20. 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 1/208:45 am -
2 stops15h 25m
Fri 1/296:00 am -
3 stops44h 20m
Deal found 9/20![United Airlines logo]()
$681
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/1710:33 pm -
1 stop25h 47m
Wed 10/285:00 am -
2 stops25h 09m
Deal found 9/22![United Airlines logo]()
$698
This United Airlines deal was found by Cheapflights users on 9/22. 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 3/175:15 am -
2 stops21h 05m
Fri 3/2610:55 am -
2 stops29h 45m
Deal found 9/22![United Airlines logo]()
$743
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/2410:58 am -
1 stop14h 12m
Sat 10/3112:20 pm -
2 stops29h 16m
Deal found 9/18![United Airlines logo]()
$786
Last-minute flights from Portland to LisbonDiscover last-minute flight deals from Portland to Lisbon. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Lisbon. Data last updated September 23, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:10 am -
2 stops39h 10m
Tue 11/106:05 am -
2 stops20h 04m
Deal found 9/19![Lufthansa logo]()
$604
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:25 am -
1 stop18h 05m
Tue 11/1010:15 am -
2 stops31h 21m
Deal found 9/18![United Airlines logo]()
$620
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/208:35 am -
1 stop16h 30m
Tue 11/107:05 am -
2 stops20h 42m
Deal found 9/19![American Airlines logo]()
$635
This Air France deal was found by Cheapflights users on 9/20. 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.
Sun 10/257:00 am -
1 stop18h 00m
Tue 11/35:30 am -
2 stops18h 40m
Deal found 9/20![Air France logo]()
$626
This Delta deal was found by Cheapflights users on 9/22. 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.
Sun 10/257:00 am -
1 stop18h 00m
Tue 11/35:30 am -
2 stops22h 30m
Deal found 9/22![Delta logo]()
$627
This KAYAK deal was found by Cheapflights users on 9/18. 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 10/257:15 pm -
2 stops31h 55m
Tue 11/33:35 pm -
2 stops38h 52m
Deal found 9/18![Multiple Airlines logo]()
$636
This British Airways deal was found by Cheapflights users on 9/22. 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.
Wed 10/286:45 pm -
1 stop16h 00m
Fri 11/611:05 am -
1 stop18h 54m
Deal found 9/22![British Airways logo]()
$608
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Wed 10/281:12 pm -
2 stops18h 43m
Fri 11/611:05 am -
1 stop18h 54m
Deal found 9/18![American Airlines logo]()
$613
This Gotogate deal was found by Cheapflights users on 9/21. 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 10/313:45 pm -
1 stop14h 05m
Sun 11/152:00 pm -
1 stop35h 00m
Deal found 9/21![Icelandair logo]()
$543
One-way flights from Portland to LisbonSearch for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/263:45 pm -
2 stops33h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/313:45 pm -
3 stops45h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/273:45 pm -
2 stops18h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/173:30 pm -
3 stops45h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/193:30 pm -
3 stops45h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/143:30 pm -
3 stops46h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/243:30 pm -
2 stops35h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$301
This Mytrip deal was found by Cheapflights users on 9/19. 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 11/32:45 pm -
2 stops20h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 1/112:45 pm -
2 stops18h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 1/42:45 pm -
2 stops33h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$314
Find flight deals from Portland to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $543 (Gotogate) |
One-way from | $269 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,072 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 7,457,451 searches. Data last updated September 23, 2026.
Use the filters below to find and compare flights from Portland to Lisbon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Mon 1/4
2:45 pm-8:10 am
2 stops33h 25m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$314
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Fri 3/19
10:56 pm-8:10 am
1 stop26h 14m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$434
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Wed 10/28
7:10 am-10:20 am
2 stops20h 10m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$463
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Tue 10/13
12:29 pm-5:50 pm
2 stops21h 21m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$513
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sun 10/11
7:00 am-8:00 am
1 stop17h 00m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$539
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Tue 10/6
1:05 pm-2:35 pm
1 stop17h 30m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$543
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Tue 10/6
9:31 am-11:15 am
2 stops17h 44m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$543
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sat 10/10
10:15 pm-8:00 am
1 stop25h 45m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$556
Quickest round-trip
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Fri 12/11
7:10 am-8:00 am
1 stop16h 50m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$559
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Tue 11/10
8:30 am-10:05 am
1 stop17h 35m
Lisbon Humberto Delgado
Wed 11/18
11:20 am-7:12 pm
2 stops39h 52m
$600
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Portland 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 Portland to Lisbon in September.
| 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 |
- Most accurate provider: When it comes to deals on Portland-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-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 Portland-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 Portland to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from Portland with our price prediction graph.
PDX-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 Portland to Lisbon
How far ahead should I book a flight from Portland to Lisbon?
The price you pay for your flight from Portland to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 12 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Portland to Lisbon?
Currently, February is the cheapest month in which you can book a flight from Portland to Lisbon (average of $598). Flying from Portland to Lisbon in June is currently the most expensive (average of $1,347). 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 Portland to Lisbon?
Airfare is below average for this route at the moment.
Portland to Lisbon flights typically cost between $766 and $1,104 in October.The cheapest round-trip price found within the last 5 days was $543 on Icelandair (Oct 31-Nov 15).
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 September 23, 2026.
Read reviews from past customers who have flown KLM,Delta, andUnited Airlines from Portland to Lisbon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.2
Overall
7.8
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Overall
7.8
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Overall
7.8
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Overall
7.8
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Overall
7.8
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Overall
7.8
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from Portland 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 8 airlines flying from Portland to Lisbon
Discover the top 8 airlines that operate flights from Portland 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$424 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$360 | Average$537 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$492 | Average$880 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$492 | Average$993 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$501 | Average$549 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$508 | Average$940 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$549 | Average$1,006 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$576 | Average$803 | FlexibilityNo cancel fee | On-time67% |