$311+ Cheap flights from Portland (PDX) 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
May 31 — Jun 71
Round-trip
1 adult, Economy
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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 May 1, 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 May 1, 2026.
This Iberia deal was found by Cheapflights users on 4/30. 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 10/207:30 pm
PDX
- LIS
1 stop19h 30m
Multiple Airlines
Tue 11/106:30 am
LIS
- PDX
2 stops24h 29m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$796
This Cheapflightsfares deal was found by Cheapflights users on 4/26. 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 10/207:30 pm
PDX
- LIS
1 stop19h 30m
British Airways
Tue 11/107:40 pm
LIS
- PDX
1 stop28h 15m
British Airways
Deal found 4/26![British Airways logo]()
$797
This KAYAK deal was found by Cheapflights users on 4/30. 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 11/251:00 pm
PDX
- LIS
2 stops43h 05m
Scandinavian Airlines
Wed 12/24:55 pm
LIS
- PDX
2 stops37h 31m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$802
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 10/251:28 pm
PDX
- LIS
2 stops18h 22m
Multiple Airlines
Tue 11/311:05 am
LIS
- PDX
1 stop17h 01m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$807
This British Airways deal was found by Cheapflights users on 4/30. 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 10/2112:32 pm
PDX
- LIS
1 stop12h 33m
Multiple Airlines
Wed 11/46:30 am
LIS
- PDX
2 stops22h 50m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$810
This Iberia deal was found by Cheapflights users on 4/30. 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 10/2011:55 am
PDX
- LIS
2 stops20h 10m
Iberia
Tue 11/106:30 am
LIS
- PDX
2 stops24h 29m
Iberia
Deal found 4/30![Iberia logo]()
$811
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 10/251:28 pm
PDX
- LIS
2 stops18h 22m
American Airlines
Tue 11/311:05 am
LIS
- PDX
2 stops20h 46m
American Airlines
Deal found 4/30![American Airlines logo]()
$812
This British Airways deal was found by Cheapflights users on 4/29. 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 11/255:45 pm
PDX
- LIS
1 stop32h 10m
British Airways
Thu 12/36:35 pm
LIS
- PDX
1 stop29h 20m
British Airways
Deal found 4/29![British Airways logo]()
$814
This Expedia deal was found by Cheapflights users on 4/30. 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 11/95:45 pm
PDX
- LIS
2 stops21h 40m
Iberia
Mon 11/238:45 pm
LIS
- PDX
2 stops32h 35m
Iberia
Deal found 4/30![Iberia logo]()
$821
This Iberia deal was found by Cheapflights users on 4/28. 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.
Mon 11/25:45 pm
PDX
- LIS
1 stop17h 10m
Multiple Airlines
Wed 11/118:45 pm
LIS
- PDX
2 stops22h 25m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$822
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 May 1, 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 May 1, 2026.
This British Airways deal was found by Cheapflights users on 4/30. 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 10/157:30 pm
PDX
- LIS
1 stop19h 35m
Multiple Airlines
Fri 10/308:20 am
LIS
- PDX
2 stops20h 37m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$897
This United Airlines deal was found by Cheapflights users on 4/28. 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 8/58:50 am
PDX
- LIS
2 stops18h 15m
United Airlines
Thu 8/2011:25 am
LIS
- PDX
2 stops36h 05m
United Airlines
Deal found 4/28![United Airlines logo]()
$947
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:20 pm
PDX
- LIS
2 stops21h 30m
Delta
Mon 6/1511:55 am
LIS
- PDX
1 stop31h 15m
Delta
Deal found 4/28![Delta logo]()
$978
This KLM deal was found by Cheapflights users on 4/28. 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 6/111:03 pm
PDX
- LIS
1 stop24h 57m
KLM
Mon 6/1511:55 am
LIS
- PDX
1 stop31h 15m
KLM
Deal found 4/28![KLM logo]()
$979
This British Airways deal was found by Cheapflights users on 4/27. 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.
Mon 6/297:30 pm
PDX
- LIS
1 stop14h 25m
British Airways
Fri 7/247:20 am
LIS
- PDX
1 stop18h 20m
British Airways
Deal found 4/27![British Airways logo]()
$1,125
This Finnair deal was found by Cheapflights users on 4/30. 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.
Sun 6/141:45 pm
PDX
- LIS
2 stops25h 40m
Finnair
Tue 7/146:35 am
LIS
- PDX
2 stops23h 15m
Finnair
Deal found 4/30![Finnair logo]()
$1,187
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:17 am
PDX
- LIS
2 stops19h 38m
Delta
Tue 7/2810:00 am
LIS
- PDX
1 stop19h 13m
Delta
Deal found 4/28![Delta logo]()
$1,001
This United Airlines deal was found by Cheapflights users on 4/28. 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 9/75:00 am
PDX
- LIS
2 stops20h 20m
United Airlines
Mon 9/1411:25 am
LIS
- PDX
3 stops35h 40m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,084
This United Airlines deal was found by Cheapflights users on 4/27. 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 6/295:48 am
PDX
- LIS
2 stops21h 12m
United Airlines
Fri 7/245:05 am
LIS
- PDX
2 stops17h 46m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,111
This United Airlines deal was found by Cheapflights users on 4/26. 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 5/2411:30 pm
PDX
- LIS
2 stops24h 50m
United Airlines
Tue 6/210:25 am
LIS
- PDX
2 stops20h 05m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 4/26. 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 5/275:00 am
PDX
- LIS
2 stops22h 05m
United Airlines
Wed 6/310:25 am
LIS
- PDX
1 stop19h 23m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,131
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/2110:40 pm
PDX
- LIS
2 stops28h 20m
United Airlines
Tue 7/2111:25 am
LIS
- PDX
3 stops36h 27m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,175
Last-minute flights from Portland to LisbonDiscover last-minute flight deals from Portland to Lisbon. Data last updated May 1, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Lisbon. Data last updated May 1, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/28. 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 4/308:04 am
PDX
- LIS
1 stop18h 26m
United Airlines
Fri 5/85:05 am
LIS
- PDX
2 stops17h 40m
United Airlines
Deal found 4/28![United Airlines logo]()
$980
This United Airlines deal was found by Cheapflights users on 4/28. 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 4/307:15 am
PDX
- LIS
2 stops19h 15m
United Airlines
Wed 5/65:05 am
LIS
- PDX
2 stops36h 25m
United Airlines
Deal found 4/28![United Airlines logo]()
$985
This CheapOair deal was found by Cheapflights users on 4/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:40 am
PDX
- LIS
2 stops21h 00m
Multiple Airlines
Fri 5/85:05 am
LIS
- PDX
2 stops22h 00m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$989
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/38:04 am
PDX
- LIS
1 stop18h 26m
United Airlines
Sun 5/105:05 am
LIS
- PDX
3 stops23h 53m
United Airlines
Deal found 4/28![United Airlines logo]()
$990
This FlightHub deal was found by Cheapflights users on 4/27. 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 5/42:41 pm
PDX
- LIS
2 stops23h 34m
Multiple Airlines
Mon 5/113:50 pm
LIS
- PDX
2 stops35h 20m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$997
This Mytrip deal was found by Cheapflights users on 4/27. 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 5/263:30 pm
PDX
- LIS
3 stops34h 25m
Multiple Airlines
Tue 6/26:15 am
LIS
- PDX
2 stops35h 15m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$951
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Thu 5/283:30 pm
PDX
- LIS
3 stops33h 00m
Multiple Airlines
Sun 6/76:00 am
LIS
- PDX
3 stops39h 50m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$947
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 May 1, 2026.
Search for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/1011:58 am
PDX
- LIS
3 stops43h 12m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 9/283:30 pm
PDX
- LIS
3 stops39h 40m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/317:05 pm
PDX
- LIS
3 stops36h 05m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 10/53:30 pm
PDX
- LIS
3 stops44h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/61:55 pm
PDX
- LIS
3 stops59h 45m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 8/293:30 pm
PDX
- LIS
3 stops48h 25m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$358
This oojo deal was found by Cheapflights users on 4/27. 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 10/131:30 pm
PDX
- LIS
2 stops25h 30m
British Airways
Deal found 4/27![British Airways logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 9/303:30 pm
PDX
- LIS
3 stops48h 00m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/123:10 pm
PDX
- LIS
3 stops59h 05m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 4/27. 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 10/138:00 am
PDX
- LIS
1 stop17h 05m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/277:05 pm
PDX
- LIS
3 stops42h 10m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$378
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 May 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $796 (Iberia) |
One-way from | $311 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $985 |
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 2,558,603 searches. Data last updated May 1, 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 - LIS
PDXLIS
Portland
Thu 10/15
7:30 pm-11:05 pm
1 stop19h 35m
Lisbon Humberto Delgado
Fri 10/30
8:20 am-9:57 pm
2 stops20h 37m
$897
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Wed 8/5
8:50 am-11:05 am
2 stops18h 15m
Lisbon Humberto Delgado
Thu 8/20
11:25 am-3:30 pm
2 stops36h 05m
$947
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Mon 6/1
12:20 pm-5:50 pm
2 stops21h 30m
Lisbon Humberto Delgado
Mon 6/15
11:55 am-11:10 am
1 stop31h 15m
$978
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Mon 6/1
11:03 pm-8:00 am
1 stop24h 57m
Lisbon Humberto Delgado
Mon 6/15
11:55 am-11:10 am
1 stop31h 15m
$979
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Mon 7/20
11:17 am-2:55 pm
2 stops19h 38m
Lisbon Humberto Delgado
Tue 7/28
10:00 am-9:13 pm
1 stop19h 13m
$1,001
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Mon 9/7
5:00 am-9:20 am
2 stops20h 20m
Lisbon Humberto Delgado
Mon 9/14
11:25 am-3:05 pm
3 stops35h 40m
$1,084
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Mon 6/29
5:48 am-11:00 am
2 stops21h 12m
Lisbon Humberto Delgado
Fri 7/24
5:05 am-2:51 pm
2 stops17h 46m
$1,111
Quickest round-trip
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Mon 6/29
7:30 pm-5:55 pm
1 stop14h 25m
Lisbon Humberto Delgado
Fri 7/24
7:20 am-5:40 pm
1 stop18h 20m
$1,125
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Sun 5/24
11:30 pm-8:20 am
2 stops24h 50m
Lisbon Humberto Delgado
Tue 6/2
10:25 am-10:30 pm
2 stops20h 05m
$1,127
PortlandLisbon
PDX - LIS
PDXLIS
Portland
Wed 5/27
5:00 am-11:05 am
2 stops22h 05m
Lisbon Humberto Delgado
Wed 6/3
10:25 am-9:48 pm
1 stop19h 23m
$1,131
Showing 1-10 of 20 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 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 |
- 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 40 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, November is the cheapest month in which you can book a flight from Portland to Lisbon (average of $559). Flying from Portland to Lisbon in June is currently the most expensive (average of $1,319). 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?
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 1, 2026.
Read reviews from past customers who have flown Delta,KLM, 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
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
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 1, 2026.
Portland and Lisbon flights
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Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated May 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$360 | Average$495 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$492 | Average$761 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$501 | Average$680 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$510 | Average$869 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$524 | Average$626 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$549 | Average$817 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$551 | Average$851 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$577 | Average$699 | FlexibilityNo cancel fee | On-time67% |