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$378+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Lisbon Humberto Delgado are usually found in November or February, booked 9 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$827
(Delta)

One-way from

$378
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$857
Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.
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From Portland to Lisbon Humberto Delgado
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One-way flight from Portland to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 24% potential increase in price ($301 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 29, 2025.

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.
Tue 5/1311:25 amPDX - LIS
2 stops15h 50mDelta
Tue 5/2011:40 amLIS - PDX
1 stop31h 40mDelta
Deal found 4/28$827
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:15 pmPDX - LIS
2 stops18h 25mBritish Airways
Sun 10/1211:00 amLIS - PDX
1 stop14h 35mBritish Airways
Deal found 4/28$831
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.
Tue 5/1311:25 amPDX - LIS
2 stops19h 10mKLM
Tue 5/2011:40 amLIS - PDX
1 stop31h 40mKLM
Deal found 4/28$833
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.
Tue 5/137:54 amPDX - LIS
2 stops17h 26mUnited Airlines
Mon 5/1912:20 pmLIS - PDX
1 stop15h 42mUnited Airlines
Deal found 4/28$842
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/161:15 pmPDX - LIS
1 stop25h 35mMultiple Airlines
Wed 5/2112:45 pmLIS - PDX
2 stops17h 16mMultiple Airlines
Deal found 4/28$858
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:00 amPDX - LIS
1 stop17h 00mAir France
Mon 8/1110:00 amLIS - PDX
1 stop19h 35mAir France
Deal found 4/28$859
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/126:15 amPDX - LIS
2 stops43h 05mAir Canada
Thu 6/1211:25 amLIS - PDX
2 stops35h 48mAir Canada
Deal found 4/28$879
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:45 pmPDX - LIS
1 stop21h 35mIcelandair
Mon 11/107:05 amLIS - PDX
2 stops17h 55mIcelandair
Deal found 4/28$886
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/307:25 pmPDX - LIS
1 stop19h 45mAmerican Airlines
Wed 7/911:05 amLIS - PDX
1 stop19h 01mAmerican Airlines
Deal found 4/28$906
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1310:00 amPDX - LIS
2 stops28h 05mLufthansa
Fri 6/135:05 amLIS - PDX
2 stops21h 40mLufthansa
Deal found 4/28$910
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:30 pmPDX - LIS
1 stop33h 40mFinnair
Tue 11/114:10 pmLIS - PDX
2 stops36h 51mFinnair
Deal found 4/28$924
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.
Tue 9/22:15 pmPDX - LIS
2 stops17h 50mIberia
Mon 10/68:45 pmLIS - PDX
2 stops34h 07mIberia
Deal found 4/28$928

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 April 29, 2025.
Use the filters below to find and compare flights from Portland to Lisbon that are best for you.

Fly from

Portland

Fly to

Lisbon

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 5/13

11:25 am-11:15 am

2 stops15h 50m

Lisbon Humberto Delgado

Tue 5/20

11:40 am-11:20 am

1 stop31h 40m

$827

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 10/1

1:15 pm-3:40 pm

2 stops18h 25m

Lisbon Humberto Delgado

Sun 10/12

11:00 am-5:35 pm

1 stop14h 35m

$831

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 5/13

11:25 am-2:35 pm

2 stops19h 10m

Lisbon Humberto Delgado

Tue 5/20

11:40 am-11:20 am

1 stop31h 40m

$833

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 5/13

7:54 am-9:20 am

2 stops17h 26m

Lisbon Humberto Delgado

Mon 5/19

12:20 pm-8:02 pm

1 stop15h 42m

$842

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 5/16

1:15 pm-10:50 pm

1 stop25h 35m

Lisbon Humberto Delgado

Wed 5/21

12:45 pm-10:01 pm

2 stops17h 16m

$858

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 8/3

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Mon 8/11

10:00 am-9:35 pm

1 stop19h 35m

$859

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 5/12

6:15 am-9:20 am

2 stops43h 05m

Lisbon Humberto Delgado

Thu 6/12

11:25 am-3:13 pm

2 stops35h 48m

$879

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 6/30

7:25 pm-11:10 pm

1 stop19h 45m

Lisbon Humberto Delgado

Wed 7/9

11:05 am-10:06 pm

1 stop19h 01m

$906

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 5/13

10:00 am-10:05 pm

2 stops28h 05m

Lisbon Humberto Delgado

Fri 6/13

5:05 am-6:45 pm

2 stops21h 40m

$910

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 9/2

2:15 pm-4:05 pm

2 stops17h 50m

Lisbon Humberto Delgado

Mon 10/6

8:45 pm-10:52 pm

2 stops34h 07m

$928

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 25 results
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland-Lisbon flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 2025.

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 9 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, January is the cheapest month in which you can book a flight from Portland to Lisbon (average of $612). Flying from Portland to Lisbon in June is currently the most expensive (average of $1,178). 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.

What is the cheapest time of day to fly from PDX to LIS?

Find hourly flight availability from Portland to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Lisbon in the afternoon. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Portland to Lisbon?

Use this chart to determine the cheapest time to fly round-trip from Portland to Lisbon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Lisbon flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 April 29, 2025.
Read reviews from past customers who have flown Delta, KLM and SWISS from Portland to Lisbon. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,587 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,444 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    According to our current data, Delta ($827), British Airways ($831), and KLM ($833) offers the cheapest pricing from Portland to Lisbon. Users have found that Delta is 11% cheaper than the other options available to this destination.

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

    $411 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Air Canada and British Airways, with prices starting from $482 and $566, respectively.

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

    Of the flights from Portland to Lisbon that have layovers, most of them stop in London. London is followed by Amsterdam in terms of the most popular layover location on flights 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, Piccadilly Circus, and Buckingham Palace more than anywhere else. Hyde Park, Piccadilly Circus, and Buckingham Palace can be accessed by traveling approximately 12.5 mi, 14.1 mi, and 13.7 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 $53.

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

    Amsterdam travelers tend to visit Anne Frank Huis, Van Gogh Museum, and Museumplein more than any other notable places. Anne Frank Huis, Van Gogh Museum and Museumplein are located about 6.8 mi, 6.0 mi, and 6.0 mi, respectively from Amsterdam Schiphol if you are interested in checking them out. Travelers can book a car rental at Amsterdam Schiphol for about $44 per day to make their sightseeing more efficient.

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

    Portland to Lisbon flights that have layovers will least frequently stop in New York.

  • 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, January is the cheapest month in which you can book a flight from Portland to Lisbon (average of $612). Flying from Portland to Lisbon in June is currently the most expensive (average of $1,178). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Sintra
Beja
Nazaré
Costa da Caparica
Evora
Torres Vedras
Oeiras
Sesimbra
Fátima

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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.
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Redmond to Lisbon flights
Portland to Ponta Delgada flights
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Eugene to Porto flights

Top 10 airlines flying from Portland to Lisbon

Discover the top 10 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$424Average$519FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$554Average$974FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$563Average$720FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$774FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$570Average$895FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$572Average$941FlexibilityNo cancel feeOn-time70%
KLMCheapest$586Average$973FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$586Average$1,040FlexibilityNo cancel feeOn-time67%
DeltaCheapest$587Average$945FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$595Average$873FlexibilityNo cancel feeOn-time72%

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