How long is the flight from Portland to Lisbon?

Departing from Portland to Lisbon will take you 17h. The distance between Portland and Lisbon is about 5295 mi.

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

According to our current data, Icelandair ($360), Delta ($554), and KLM ($557) offers the cheapest pricing from Portland to Lisbon. Users have found that Icelandair is 60% cheaper than the other options available to this destination.

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

$232 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 United Airlines, with prices starting from $329 and $335, respectively.

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.

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).

What are the most popular airlines that fly from Portland to Lisbon?

Before booking your flight from Portland to Lisbon check out the most popular airlines for this route: British Airways, Delta or United Airlines.

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 New York in terms of the most popular layover location on flights from Portland to Lisbon.

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

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

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 $32.

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 $57 per day to make their sightseeing more efficient.

Most accurate provider : When it comes to deals on Portland-Lisbon flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Lisbon flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$310+ Flights from Portland to Lisbon

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Find cheap flights from Portland to Lisbon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Portland to Lisbon Humberto Delgado are usually found in November or October, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 December 21, 2025.

Fri 12/263:15 pmPDX - LIS

2 stops33h 40mAir Canada

Tue 1/276:10 amLIS - PDX

2 stops35h 05mAir Canada

Deal found 12/19

$602

Fri 12/2611:21 pmPDX - LIS

1 stop25h 44mMultiple Airlines

Tue 1/274:10 pmLIS - PDX

2 stops34h 41mMultiple Airlines

Deal found 12/19

$629

Fri 12/2611:21 pmPDX - LIS

1 stop25h 44mAmerican Airlines

Tue 1/276:30 amLIS - PDX

2 stops21h 57mAmerican Airlines

Deal found 12/21

$717

Wed 12/317:00 amPDX - LIS

1 stop17h 40mKLM

Thu 1/811:25 amLIS - PDX

1 stop32h 00mKLM

Deal found 12/19

$726

Wed 12/316:15 amPDX - LIS

2 stops18h 25mMultiple Airlines

Thu 1/811:25 amLIS - PDX

1 stop32h 00mMultiple Airlines

Deal found 12/19

$730

Wed 12/315:00 amPDX - LIS

2 stops19h 10mUnited Airlines

Sun 1/1111:20 amLIS - PDX

2 stops54h 25mUnited Airlines

Deal found 12/20

$781

Fri 12/261:25 pmPDX - LIS

1 stop25h 45mKLM

Tue 1/273:30 pmLIS - PDX

1 stop27h 55mKLM

Deal found 12/19

$798

Wed 12/3112:54 pmPDX - LIS

2 stops26h 36mLufthansa

Thu 1/86:45 pmLIS - PDX

2 stops32h 11mLufthansa

Deal found 12/19

$835

Best flights from Portland to Lisbon
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 December 21, 2025.

Mon 2/27:00 amPDX - LIS

1 stop17h 00mDelta

Tue 2/1011:25 amLIS - PDX

1 stop32h 00mDelta

Deal found 12/18

$487

Mon 2/27:00 amPDX - LIS

1 stop17h 00mDelta

Thu 2/1211:25 amLIS - PDX

1 stop32h 00mDelta

Deal found 12/18

$487

Mon 2/27:00 amPDX - LIS

1 stop17h 00mDelta

Sat 2/1411:25 amLIS - PDX

1 stop32h 00mDelta

Deal found 12/18

$487

Fri 2/611:10 amPDX - LIS

2 stops22h 20mDelta

Thu 2/1211:25 amLIS - PDX

1 stop32h 00mDelta

Deal found 12/18

$491

Wed 2/45:30 amPDX - LIS

2 stops28h 00mDelta

Thu 2/1211:25 amLIS - PDX

1 stop32h 00mDelta

Deal found 12/18

$491

Wed 2/189:15 amPDX - LIS

2 stops24h 15mDelta

Wed 2/255:00 amLIS - PDX

1 stop14h 25mDelta

Deal found 12/20

$491

Tue 2/311:10 amPDX - LIS

2 stops16h 10mDelta

Sun 2/85:00 amLIS - PDX

1 stop14h 25mDelta

Deal found 12/18

$491

Wed 2/411:59 amPDX - LIS

2 stops21h 31mDelta

Wed 2/115:00 amLIS - PDX

1 stop14h 25mDelta

Deal found 12/20

$491

Thu 2/57:10 amPDX - LIS

2 stops26h 20mDelta

Sun 2/85:00 amLIS - PDX

1 stop14h 25mDelta

Deal found 12/18

$491

Fri 2/61:25 pmPDX - LIS

1 stop17h 10mDelta

Wed 2/115:00 amLIS - PDX

1 stop14h 25mDelta

Deal found 12/18

$492

Sun 2/11:25 pmPDX - LIS

1 stop17h 10mDelta

Sun 2/85:00 amLIS - PDX

1 stop14h 25mDelta

Deal found 12/18

$492

Last-minute flights from Portland to Lisbon
Discover last-minute flight deals from Portland to Lisbon. Data last updated December 21, 2025 and is based on user searches.

Fri 1/97:00 amPDX - LIS

2 stops17h 10mUnited Airlines

Thu 1/1511:20 amLIS - PDX

2 stops43h 12mUnited Airlines

Deal found 12/19

$573

Mon 1/129:50 amPDX - LIS

2 stops39h 30mLufthansa

Mon 1/193:55 pmLIS - PDX

2 stops35h 01mLufthansa

Deal found 12/19

$565

Mon 1/121:24 pmPDX - LIS

3 stops35h 56mUnited Airlines

Mon 1/1911:20 amLIS - PDX

2 stops39h 36mUnited Airlines

Deal found 12/19

$575

Thu 1/159:50 amPDX - LIS

2 stops15h 30mMultiple Airlines

Tue 1/276:10 amLIS - PDX

2 stops40h 30mMultiple Airlines

Deal found 12/20

$567

Fri 1/165:45 pmPDX - LIS

1 stop20h 40mBritish Airways

Fri 1/237:05 amLIS - PDX

1 stop16h 50mBritish Airways

Deal found 12/19

$484

Fri 1/165:00 amPDX - LIS

2 stops19h 10mUnited Airlines

Fri 1/2311:20 amLIS - PDX

2 stops35h 26mUnited Airlines

Deal found 12/19

$494

Fri 1/161:25 pmPDX - LIS

1 stop25h 45mKLM

Fri 1/235:00 amLIS - PDX

2 stops21h 50mKLM

Deal found 12/19

$502

Sun 1/189:50 amPDX - LIS

2 stops39h 30mAir Canada

Sat 1/3111:20 amLIS - PDX

2 stops43h 12mAir Canada

Deal found 12/20

$489

Sun 1/181:25 pmPDX - LIS

1 stop17h 10mKLM

Sat 1/3111:25 amLIS - PDX

1 stop32h 00mKLM

Deal found 12/20

$492

Sun 1/185:45 pmPDX - LIS

1 stop20h 00mMultiple Airlines

Sat 1/316:30 amLIS - PDX

2 stops23h 41mMultiple Airlines

Deal found 12/20

$497

Fri 1/305:00 amPDX - LIS

2 stops19h 10mUnited Airlines

Tue 2/311:20 amLIS - PDX

2 stops39h 36mUnited Airlines

Deal found 12/18

$491

One-way flights from Portland to Lisbon
Search for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated December 21, 2025.

Thu 1/159:50 amPDX - LIS

2 stops15h 30mMultiple Airlines

Deal found 12/20

$310

Sat 3/143:45 pmPDX - LIS

3 stops42h 40mMultiple Airlines

Deal found 12/20

$320

Sat 3/147:05 pmPDX - LIS

2 stops31h 15mAir Canada

Deal found 12/20

$332

Fri 1/27:10 amPDX - LIS

2 stops19h 05mUnited Airlines

Deal found 12/19

$334

Sat 3/1411:10 pmPDX - LIS

1 stop28h 05mUnited Airlines

Deal found 12/20

$344

Thu 1/151:24 pmPDX - LIS

3 stops35h 56mUnited Airlines

Deal found 12/20

$353

Fri 3/131:36 pmPDX - LIS

2 stops16h 44mMultiple Airlines

Deal found 12/20

$355

Fri 3/137:49 pmPDX - LIS

2 stops44h 01mLufthansa

Deal found 12/20

$364

Sun 3/152:25 pmPDX - LIS

1 stop17h 10mKLM

Deal found 12/20

$407

Fri 3/1311:10 pmPDX - LIS

1 stop28h 05mUnited Airlines

Deal found 12/20

$436

Find flight deals from Portland to Lisbon

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$478 (FlightHub)
One-way from	$310 (Mytrip)
Popular in	June
Cheapest in	November
Average price	$1,013

Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.

Search Deals

From Portland to Lisbon Humberto Delgado

Search Deals

One-way flight from Portland to Lisbon Humberto Delgado

Search Deals

Highest demand for flights based on searches. 24% potential increase in price ($288 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 2/10

11:25 am-11:25 am

1 stop32h 00m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Thu 2/12

11:25 am-11:25 am

1 stop32h 00m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Sat 2/14

11:25 am-11:25 am

1 stop32h 00m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 2/6

11:10 am-5:30 pm

2 stops22h 20m

Lisbon Humberto Delgado

Thu 2/12

11:25 am-11:25 am

1 stop32h 00m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

5:30 am-5:30 pm

2 stops28h 00m

Lisbon Humberto Delgado

Thu 2/12

11:25 am-11:25 am

1 stop32h 00m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

9:15 am-5:30 pm

2 stops24h 15m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 2/3

11:10 am-11:20 am

2 stops16h 10m

Lisbon Humberto Delgado

Sun 2/8

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

11:59 am-5:30 pm

2 stops21h 31m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 2/5

7:10 am-5:30 pm

2 stops26h 20m

Lisbon Humberto Delgado

Sun 2/8

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 2/6

1:25 pm-2:35 pm

1 stop17h 10m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-11:25 am

1 stop14h 25m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 22 results

Compare providers for flights from Portland to Lisbon

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Lisbon in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Lisbon flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

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 8 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 $434). Flying from Portland to Lisbon in June is currently the most expensive (average of $969). 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?

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 36% on your trip compared to booking a flight in the evening.

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

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.

Reviews of airlines servicing Lisbon

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.

Delta

7.9

Good

8,015 reviews

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.

Delta

7.9

Good

8,015 reviews

Delta

7.9

Good

8,015 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

KLM

7.7

Good

1,431 reviews

Delta

7.9

Good

8,015 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,102 reviews

Delta

7.9

Good

8,015 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,550 reviews

Delta

7.9

Good

8,015 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

British Airways

6.7

Okay

7,602 reviews

Delta

7.9

Good

8,015 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Portland to Lisbon?
Departing from Portland to Lisbon will take you 17h. The distance between Portland and Lisbon is about 5295 mi.
What are the cheapest airlines flying from Portland to Lisbon round-trip?
According to our current data, Icelandair ($360), Delta ($554), and KLM ($557) offers the cheapest pricing from Portland to Lisbon. Users have found that Icelandair is 60% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Portland to Lisbon one-way?
$232 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 United Airlines, with prices starting from $329 and $335, 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 New York 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, 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 $32.
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 $57 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 Amsterdam.
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, November is the cheapest month in which you can book a flight from Portland to Lisbon (average of $434). Flying from Portland to Lisbon in June is currently the most expensive (average of $969). 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

Fátima

Oeiras

Ericeira

Costa da Caparica

Torres Vedras

Beja

Nazaré

Sesimbra

Colares

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Alternative routes for Portland to Lisbon

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Other flights to Lisbon

Top 8 airlines flying from Portland to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$360	Average$491	FlexibilityNo cancel fee	On-time76%
KLM	Cheapest$557	Average$847	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$562	Average$889	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$564	Average$793	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$586	Average$824	FlexibilityNo cancel fee	On-time69%
British Airways	Cheapest$604	Average$900	FlexibilityNo cancel fee	On-time70%
Air Canada	Cheapest$634	Average$1,047	FlexibilityNo cancel fee	On-time67%
Lufthansa	Cheapest$692	Average$1,074	FlexibilityNo cancel fee	On-time76%

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$310+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Lisbon with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Lisbon Humberto Delgado are usually found in November or October, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Portland to Lisbon

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 December 21, 2025.

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 December 21, 2025.

Find flight deals from Portland to Lisbon

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

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

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

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

Reviews of airlines servicing Lisbon

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.

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?

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

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

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?

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

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?

How can I find direct flights from Portland to Lisbon?

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

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

Traveling to a place near Lisbon?

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Top 8 airlines flying from Portland to Lisbon

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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 December 21, 2025.