Lisbon

$330+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Apr 6 — Apr 131
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Cheap flight deals from Portland to Lisbon

Cheapest flights from Portland to Lisbon
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 March 7, 2026.

This Air Canada deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:10 am
PDX
-
LIS
2 stops16h 50m
Air Canada
Mon 11/25:00 am
LIS
-
PDX
2 stops21h 30m
Air Canada
Deal found 3/2$510
This Air Canada deal was found by Cheapflights users on 3/3. 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.
Fri 10/307:10 pm
PDX
-
LIS
2 stops55h 10m
Air Canada
Tue 11/106:10 am
LIS
-
PDX
2 stops20h 20m
Air Canada
Deal found 3/3$511
This Iberia deal was found by Cheapflights users on 3/3. 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 4/207:30 pm
PDX
-
LIS
1 stop19h 40m
Multiple Airlines
Mon 4/2712:30 pm
LIS
-
PDX
2 stops19h 24m
Multiple Airlines
Deal found 3/3$514
This KAYAK deal was found by Cheapflights users on 3/3. 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.
Mon 11/210:05 am
PDX
-
LIS
2 stops39h 15m
Lufthansa
Mon 11/95:00 am
LIS
-
PDX
2 stops23h 33m
Lufthansa
Deal found 3/3$515
This United Airlines deal was found by Cheapflights users on 3/3. 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 11/310:00 am
PDX
-
LIS
1 stop14h 10m
United Airlines
Tue 11/105:00 am
LIS
-
PDX
2 stops21h 31m
United Airlines
Deal found 3/3$516
This FlightHub deal was found by Cheapflights users on 3/3. 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.
Fri 11/132:14 pm
PDX
-
LIS
2 stops24h 36m
Multiple Airlines
Sat 11/215:00 am
LIS
-
PDX
2 stops21h 30m
Multiple Airlines
Deal found 3/3$517
This United Airlines deal was found by Cheapflights users on 3/3. 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 11/35:15 am
PDX
-
LIS
2 stops20h 05m
United Airlines
Mon 11/95:00 am
LIS
-
PDX
2 stops27h 54m
United Airlines
Deal found 3/3$519
This British Airways deal was found by Cheapflights users on 3/4. 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 10/266:45 pm
PDX
-
LIS
1 stop20h 10m
Multiple Airlines
Wed 11/46:30 am
LIS
-
PDX
2 stops22h 50m
Multiple Airlines
Deal found 3/4$520
This Expedia deal was found by Cheapflights users on 3/3. 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 10/2810:05 am
PDX
-
LIS
2 stops21h 45m
Multiple Airlines
Tue 11/105:00 am
LIS
-
PDX
2 stops21h 30m
Multiple Airlines
Deal found 3/3$522
This Air Canada deal was found by Cheapflights users on 3/3. 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 11/17:10 pm
PDX
-
LIS
2 stops35h 40m
Air Canada
Tue 11/106:10 am
LIS
-
PDX
2 stops35h 15m
Air Canada
Deal found 3/3$523
This Finnair deal was found by Cheapflights users on 3/4. 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 4/266:22 am
PDX
-
LIS
2 stops33h 03m
Finnair
Wed 5/64:35 pm
LIS
-
PDX
2 stops37h 03m
Finnair
Deal found 3/4$524
This Iberia deal was found by Cheapflights users on 3/3. 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.
Sun 10/256:45 pm
PDX
-
LIS
1 stop20h 00m
Multiple Airlines
Tue 11/38:45 pm
LIS
-
PDX
2 stops34h 14m
Multiple Airlines
Deal found 3/3$525

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 March 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(Iberia)

One-way from

$330
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$700
Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.
From Portland to Lisbon Humberto Delgado
One-way flight from Portland to Lisbon Humberto Delgado
Highest demand for flights based on searches. 27% potential increase in price ($322 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 March 7, 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

Price

Cheapest round-trip
Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/20

7:30 pm-5:55 pm

1 stop14h 25m

Lisbon Humberto Delgado

Mon 4/27

8:25 am-10:49 pm

2 stops22h 24m

$520

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/19

6:22 am-11:25 pm

2 stops33h 03m

Lisbon Humberto Delgado

Mon 4/27

6:35 am-10:56 pm

2 stops24h 21m

$528

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

6:22 am-11:25 pm

2 stops33h 03m

Lisbon Humberto Delgado

Mon 4/20

4:35 pm-9:38 pm

2 stops37h 03m

$574

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/26

1:05 pm-10:50 pm

1 stop25h 45m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-2:53 pm

2 stops17h 53m

$581

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/19

1:05 pm-10:50 pm

1 stop25h 45m

Lisbon Humberto Delgado

Mon 4/27

5:35 am-4:50 pm

2 stops19h 15m

$637

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 5/8

5:35 pm-9:20 am

2 stops31h 45m

Lisbon Humberto Delgado

Sat 5/16

7:25 am-12:59 am

2 stops25h 34m

$672

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 4/17

5:35 pm-10:45 pm

2 stops21h 10m

Lisbon Humberto Delgado

Fri 4/24

12:20 pm-11:44 am

3 stops31h 24m

$717

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 4/17

7:00 am-3:50 pm

2 stops24h 50m

Lisbon Humberto Delgado

Sun 5/3

6:35 am-10:56 pm

2 stops24h 21m

$727

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/12

1:05 pm-2:35 pm

1 stop17h 30m

Lisbon Humberto Delgado

Mon 4/27

11:55 am-11:10 am

1 stop31h 15m

$760

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 5/3

7:30 pm-11:05 pm

1 stop19h 35m

Lisbon Humberto Delgado

Sat 5/16

6:55 pm-9:38 pm

2 stops34h 43m

$778

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Lisbon. Price data was last updated on February 27, 2026.

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 73 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, March is the cheapest month in which you can book a flight from Portland to Lisbon (average of $425). Flying from Portland to Lisbon in June is currently the most expensive (average of $973). 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 March 7, 2026.
Read reviews from past customers who have flown Delta, KLM, and United 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.

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.
  • How long is the flight from Portland to Lisbon?

    Departing from Portland to Lisbon will take you 25h 45m. The distance between Portland and Lisbon is about 5295 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Portland to Lisbon round-trip?

    According to our current data, Icelandair ($360), KLM ($492), and Lufthansa ($501) offers the cheapest pricing from Portland to Lisbon. Users have found that Icelandair is 56% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Portland to Lisbon one-way?

    $312 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $330 and $360, respectively.

  • Where are the most common layover locations when flying from Portland to Lisbon?

  • What are some popular things to do or see while on a layover in London?

    London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than anywhere else. Hyde Park, Buckingham Palace, and Piccadilly Circus can be accessed by traveling approximately 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Those on a layover in London in need of a rental car can book one at London Heathrow for about $31.

  • What are some popular points of interest to see during a layover in New York?

    New York travelers tend to visit Times Square, New York City Center, and Madison Square Garden more than any other notable places. Times Square, New York City Center and Madison Square Garden are located about 13.6 mi, 13.6 mi, and 13.6 mi, respectively from New York John F Kennedy Intl if you are interested in checking them out. Travelers can book a car rental at New York John F Kennedy Intl for about $64 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Portland to Lisbon flights?

  • Can I find deals for flights from Portland to Lisbon that include hotel bookings?

    Yes. In addition to deals on Portland to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Lisbon.

  • Can I find deals for business class flights from Portland to Lisbon?

    Yes. Cheapflights offers flight deals from Portland to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Lisbon?

    Currently, March is the cheapest month in which you can book a flight from Portland to Lisbon (average of $425). Flying from Portland to Lisbon in June is currently the most expensive (average of $973). 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.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra

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Alternative routes for Portland to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.

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 March 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$360Average$488FlexibilityNo cancel feeOn-time76%
KLMCheapest$492Average$820FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$501Average$692FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$512Average$850FlexibilityNo cancel feeOn-time70%
DeltaCheapest$523Average$912FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$524Average$805FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$549Average$781FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$583Average$944FlexibilityNo cancel feeOn-time67%

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