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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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$703
(United Airlines)

One-way from

$378
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$858
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 ($299 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 15, 2025.

This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:54 amPDX - LIS
2 stops18h 36mUnited Airlines
Tue 5/1312:55 pmLIS - PDX
2 stops34h 20mUnited Airlines
Deal found 4/14$702
This United deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2111:30 pmPDX - LIS
1 stop27h 00mMultiple Airlines
Tue 5/611:25 amLIS - PDX
2 stops35h 15mMultiple Airlines
Deal found 4/14$703
This Air Canada deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:40 pmPDX - LIS
2 stops31h 30mAir Canada
Tue 9/3011:25 amLIS - PDX
2 stops35h 21mAir Canada
Deal found 4/15$706
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/177:00 amPDX - LIS
1 stop17h 00mDelta
Tue 9/211:40 amLIS - PDX
1 stop31h 40mDelta
Deal found 4/14$711
This Expedia deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:25 pmPDX - LIS
1 stop19h 45mBritish Airways
Mon 5/198:45 pmLIS - PDX
2 stops28h 50mBritish Airways
Deal found 4/14$722
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:15 pmPDX - LIS
1 stop13h 40mKLM
Wed 5/145:00 amLIS - PDX
1 stop14h 20mKLM
Deal found 4/14$731
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/52:14 pmPDX - LIS
2 stops23h 36mLufthansa
Tue 5/135:05 amLIS - PDX
2 stops21h 40mLufthansa
Deal found 4/14$733
This American Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1611:40 pmPDX - LIS
1 stop25h 25mAmerican Airlines
Sat 8/3011:05 amLIS - PDX
1 stop18h 25mAmerican Airlines
Deal found 4/14$781
This Air France deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:00 amPDX - LIS
1 stop17h 00mAir France
Fri 10/35:40 amLIS - PDX
2 stops16h 59mAir France
Deal found 4/15$783
This Orbitz deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/187:25 pmPDX - LIS
2 stops28h 20mIberia
Sun 8/3112:30 pmLIS - PDX
2 stops19h 54mIberia
Deal found 4/14$784
This Finnair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:01 amPDX - LIS
2 stops23h 39mFinnair
Thu 9/2511:05 amLIS - PDX
1 stop14h 30mFinnair
Deal found 4/14$789
This Icelandair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/133:20 pmPDX - LIS
1 stop22h 00mIcelandair
Thu 8/2810:20 pmLIS - PDX
1 stop27h 35mIcelandair
Deal found 4/14$858

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 15, 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 9/16

5:40 pm-9:20 am

2 stops31h 40m

Lisbon Humberto Delgado

Tue 9/23

12:50 pm-2:42 pm

2 stops33h 52m

$703

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 9/16

7:40 pm-11:10 am

2 stops31h 30m

Lisbon Humberto Delgado

Tue 9/30

11:25 am-2:46 pm

2 stops35h 21m

$706

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 8/17

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Fri 8/29

5:00 am-11:20 am

1 stop14h 20m

$711

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 5/12

7:25 pm-11:10 pm

1 stop19h 45m

Lisbon Humberto Delgado

Mon 5/19

8:45 pm-5:35 pm

2 stops28h 50m

$722

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 5/7

1:15 pm-10:55 am

1 stop13h 40m

Lisbon Humberto Delgado

Wed 5/14

5:00 am-11:20 am

1 stop14h 20m

$731

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 5/5

2:14 pm-9:50 pm

2 stops23h 36m

Lisbon Humberto Delgado

Tue 5/13

5:05 am-6:45 pm

2 stops21h 40m

$733

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 8/16

10:21 pm-8:20 am

1 stop25h 59m

Lisbon Humberto Delgado

Sat 8/30

9:50 am-2:45 pm

2 stops36h 55m

$738

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 8/16

11:40 pm-9:05 am

1 stop25h 25m

Lisbon Humberto Delgado

Sat 8/30

11:05 am-9:30 pm

1 stop18h 25m

$781

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 9/26

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Fri 10/3

5:40 am-2:39 pm

2 stops16h 59m

$783

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 8/18

7:25 pm-7:45 am

2 stops28h 20m

Lisbon Humberto Delgado

Sun 8/31

12:30 pm-12:24 am

2 stops19h 54m

$784

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 23 results
1
2
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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*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
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 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 April 11, 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 $1,203). 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 15, 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 15, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair 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
7,917 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

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
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

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
1,323 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

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.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

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
7.5
Good
1,433 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

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
8,656 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

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, United Airlines ($703), Air Canada ($706), and Delta ($711) offers the cheapest pricing from Portland to Lisbon. Users have found that United Airlines is 25% cheaper than the other options available to this destination.

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

    $533 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and Lufthansa, with prices starting from $548 and $553, 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 $50.

  • 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 $41 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 $1,203). 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
Almada
Beja
Costa da Caparica
Nazaré
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.
Portland to Porto flights
Redmond to Lisbon flights
Portland to Faro 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$434Average$582FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$554Average$974FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$563Average$720FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$677FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$571Average$900FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$572Average$926FlexibilityNo cancel feeOn-time70%
KLMCheapest$588Average$959FlexibilityNo cancel feeOn-time75%
DeltaCheapest$588Average$945FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$595Average$873FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$602Average$997FlexibilityNo cancel feeOn-time67%

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