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

According to our current data, KLM ($724), Delta ($734), and SWISS ($737) offers the cheapest pricing from Portland to Lisbon. Users have found that KLM is 23% cheaper than the other options available to this destination.

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

$558 is the cheapest one-way deal found within the past few days, from Air France. You may also be able to find cheap deals on British Airways and Delta, with prices starting from $571 and $576, respectively.

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: American Airlines, Air Canada or Air France.

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.

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.

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 $38.

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 De Dam more than any other notable places. Anne Frank Huis, Van Gogh Museum and De Dam are located about 6.8 mi, 6.0 mi, and 7.0 mi, respectively from Amsterdam Schiphol if you are interested in checking them out. Travelers can book a car rental at Amsterdam Schiphol for about $45 per day to make their sightseeing more efficient.

What is the cheapest day to fly round-trip from Portland to Lisbon?

Travelers have found that booking a Tuesday departure is the best way to save up to 20% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Portland to Lisbon?

To save on the cost of your flight from Portland to Lisbon, book at least 26 days before your planned departure. Booking around this time can save you about 49% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $844 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,302.

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

Flights from Portland to Lisbon lean towards being more expensive in June. Prices are generally better when you fly from Portland to Lisbon in November, with the cheapest ticket starting at $514.

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.

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.

$467+ 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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Portland to Lisbon Humberto Delgado are usually found in November or February, booked 25 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Portland to Lisbon

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$724 (KLM)
One-way from	$467 (Mytrip)
Popular in	June
Cheapest in	November
Average price	$867

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

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 ($314 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).

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Average for round-trip flights in March 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 March 26, 2025.

Wed 10/154:05 pmPDX - LIS

2 stops33h 15mUnited Airlines

Wed 10/2910:15 amLIS - PDX

1 stop17h 35mUnited Airlines

Deal found 3/24

$683

Thu 8/1410:10 amPDX - LIS

2 stops15h 10mLufthansa

Wed 8/2711:25 amLIS - PDX

2 stops19h 31mLufthansa

Deal found 3/24

$697

Sat 8/1611:59 pmPDX - LIS

2 stops25h 21mAir Canada

Wed 8/2711:25 amLIS - PDX

2 stops30h 10mAir Canada

Deal found 3/24

$701

Mon 9/227:25 pmPDX - LIS

1 stop14h 30mMultiple Airlines

Wed 10/86:35 amLIS - PDX

2 stops24h 17mMultiple Airlines

Deal found 3/24

$709

Wed 4/91:15 pmPDX - LIS

1 stop25h 35mKLM

Fri 4/187:30 pmLIS - PDX

1 stop23h 50mKLM

Deal found 3/24

$724

Mon 10/273:45 pmPDX - LIS

2 stops21h 20mIcelandair

Sun 11/99:20 pmLIS - PDX

1 stop27h 40mIcelandair

Deal found 3/25

$726

Wed 4/231:55 pmPDX - LIS

2 stops20h 00mDelta

Fri 5/25:00 amLIS - PDX

2 stops22h 10mDelta

Deal found 3/24

$734

Sat 4/2610:50 amPDX - LIS

2 stops52h 30mSWISS

Mon 5/55:55 amLIS - PDX

2 stops48h 41mSWISS

Deal found 3/24

$737

Mon 9/227:25 pmPDX - LIS

1 stop19h 45mBritish Airways

Wed 10/86:35 amLIS - PDX

2 stops19h 00mBritish Airways

Deal found 3/25

$744

Tue 8/197:25 pmPDX - LIS

1 stop14h 30mAmerican Airlines

Tue 8/2611:05 amLIS - PDX

1 stop18h 25mAmerican Airlines

Deal found 3/24

$810

Thu 11/201:00 pmPDX - LIS

2 stops36h 00mScandinavian Airlines

Mon 11/247:05 amLIS - PDX

2 stops23h 13mScandinavian Airlines

Deal found 3/25

$954

Tue 5/136:00 amPDX - LIS

2 stops31h 35mAer Lingus

Tue 5/2010:15 pmLIS - PDX

2 stops33h 44mAer Lingus

Deal found 3/25

$1,000

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 March 26, 2025.

Wed 4/91:15 pmPDX - LIS

1 stop25h 35mKLM

Fri 4/187:30 pmLIS - PDX

1 stop23h 50mKLM

Deal found 3/24

$724

Wed 4/231:55 pmPDX - LIS

2 stops20h 00mDelta

Fri 5/25:00 amLIS - PDX

2 stops22h 10mDelta

Deal found 3/24

$734

Sat 4/2610:50 amPDX - LIS

2 stops52h 30mSWISS

Mon 5/55:55 amLIS - PDX

2 stops48h 41mSWISS

Deal found 3/24

$737

Mon 5/53:56 pmPDX - LIS

2 stops21h 54mLufthansa

Tue 5/135:05 amLIS - PDX

2 stops23h 48mLufthansa

Deal found 3/25

$760

Sat 4/2611:30 pmPDX - LIS

1 stop27h 00mUnited Airlines

Mon 5/512:20 pmLIS - PDX

1 stop15h 42mUnited Airlines

Deal found 3/24

$770

Wed 5/77:03 amPDX - LIS

1 stop19h 02mMultiple Airlines

Fri 5/239:55 amLIS - PDX

1 stop34h 29mMultiple Airlines

Deal found 3/25

$864

Mon 4/217:25 pmPDX - LIS

1 stop14h 30mBritish Airways

Mon 4/286:45 pmLIS - PDX

1 stop30h 50mBritish Airways

Deal found 3/24

$927

Tue 5/203:25 pmPDX - LIS

2 stops22h 25mAir Canada

Tue 6/105:05 amLIS - PDX

2 stops25h 50mAir Canada

Deal found 3/24

$945

Tue 5/136:00 amPDX - LIS

2 stops31h 35mAer Lingus

Tue 5/2010:15 pmLIS - PDX

2 stops33h 44mAer Lingus

Deal found 3/25

$1,000

Mon 5/511:10 pmPDX - LIS

1 stop22h 55mTAP AIR PORTUGAL

Fri 5/307:05 amLIS - PDX

2 stops22h 50mTAP AIR PORTUGAL

Deal found 3/25

$1,136

Mon 6/27:25 pmPDX - LIS

1 stop19h 45mAmerican Airlines

Sun 6/811:05 amLIS - PDX

2 stops18h 14mAmerican Airlines

Deal found 3/24

$1,254

Wed 5/143:20 pmPDX - LIS

1 stop22h 00mIcelandair

Thu 5/297:00 amLIS - PDX

2 stops18h 55mIcelandair

Deal found 3/25

$1,319

Last-minute flights from Portland to Lisbon
Discover last-minute flight deals from Portland to Lisbon. Data last updated March 26, 2025 and is based on user searches.

Tue 3/2510:53 pmPDX - LIS

1 stop26h 17mMultiple Airlines

Tue 4/111:25 amLIS - PDX

2 stops39h 00mMultiple Airlines

Deal found 3/24

$798

Sat 3/296:00 amPDX - LIS

2 stops43h 55mTurkish Airlines

Mon 3/314:30 pmLIS - PDX

2 stops52h 31mTurkish Airlines

Deal found 3/25

$1,387

Tue 4/17:25 pmPDX - LIS

1 stop14h 30mBritish Airways

Tue 4/87:15 amLIS - PDX

1 stop18h 20mBritish Airways

Deal found 3/25

$1,353

Tue 4/16:00 amPDX - LIS

2 stops19h 20mAir Canada

Thu 4/2411:25 amLIS - PDX

2 stops30h 10mAir Canada

Deal found 3/25

$7,427

Tue 4/17:00 amPDX - LIS

2 stops20h 15mSWISS

Mon 4/213:35 pmLIS - PDX

2 stops39h 01mSWISS

Deal found 3/25

$7,460

Wed 4/27:54 amPDX - LIS

2 stops47h 36mTurkish Airlines

Tue 4/154:30 pmLIS - PDX

2 stops40h 00mTurkish Airlines

Deal found 3/25

$1,428

Wed 4/27:25 pmPDX - LIS

1 stop19h 45mFinnair

Tue 4/227:15 amLIS - PDX

1 stop18h 20mFinnair

Deal found 3/25

$6,963

Wed 4/211:30 amPDX - LIS

2 stops15h 45mAir France

Wed 4/2310:00 amLIS - PDX

1 stop20h 38mAir France

Deal found 3/25

$7,455

Thu 4/31:45 pmPDX - LIS

2 stops41h 45mMultiple Airlines

Thu 4/244:25 pmLIS - PDX

2 stops31h 54mMultiple Airlines

Deal found 3/24

$1,260

Fri 4/412:03 pmPDX - LIS

2 stops38h 12mAer Lingus

Sat 4/1211:25 amLIS - PDX

2 stops38h 10mAer Lingus

Deal found 3/25

$1,958

Fri 4/47:05 amPDX - LIS

1 stop16h 55mKLM

Sat 4/127:30 pmLIS - PDX

1 stop23h 50mKLM

Deal found 3/25

$2,276

Fri 4/41:15 pmPDX - LIS

1 stop13h 40mDelta

Sun 4/205:00 amLIS - PDX

1 stop14h 20mDelta

Deal found 3/25

$9,393

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 March 26, 2025.

Sat 5/311:45 pmPDX - LIS

2 stops24h 10mMultiple Airlines

Deal found 3/25

$467

Wed 4/237:00 amPDX - LIS

1 stop17h 00mAir France

Deal found 3/24

$558

Wed 4/2311:57 amPDX - LIS

2 stops27h 13mBritish Airways

Deal found 3/24

$571

Thu 5/17:23 amPDX - LIS

2 stops23h 27mDelta

Deal found 3/24

$576

Tue 5/137:40 pmPDX - LIS

2 stops29h 40mAir Canada

Deal found 3/25

$768

Wed 4/231:45 pmPDX - LIS

3 stops35h 35mUnited Airlines

Deal found 3/24

$793

Thu 4/2412:03 pmPDX - LIS

2 stops25h 32mAer Lingus

Deal found 3/25

$825

Wed 4/97:25 pmPDX - LIS

1 stop14h 30mAmerican Airlines

Deal found 3/25

$831

Fri 5/2311:25 amPDX - LIS

2 stops25h 15mScandinavian Airlines

Deal found 3/25

$852

Cheapflights Fare Finder

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

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/9

1:15 pm-10:50 pm

1 stop25h 35m

Lisbon Humberto Delgado

Fri 4/18

7:30 pm-11:20 am

1 stop23h 50m

$724

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/23

1:55 pm-5:55 pm

2 stops20h 00m

Lisbon Humberto Delgado

Wed 4/30

5:00 am-7:10 pm

2 stops22h 10m

$734

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 4/26

10:50 am-11:20 pm

2 stops52h 30m

Lisbon Humberto Delgado

Mon 5/5

5:55 am-10:36 pm

2 stops48h 41m

$737

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 5/5

3:56 pm-9:50 pm

2 stops21h 54m

Lisbon Humberto Delgado

Tue 5/13

5:05 am-8:53 pm

2 stops23h 48m

$760

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 4/26

11:30 pm-10:30 am

1 stop27h 00m

Lisbon Humberto Delgado

Mon 5/5

12:20 pm-8:02 pm

1 stop15h 42m

$770

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 5/7

7:03 am-10:05 am

1 stop19h 02m

Lisbon Humberto Delgado

Fri 5/23

9:55 am-12:24 pm

1 stop34h 29m

$864

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/21

7:25 pm-5:55 pm

1 stop14h 30m

Lisbon Humberto Delgado

Mon 4/28

6:45 pm-5:35 pm

1 stop30h 50m

$927

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 5/20

3:25 pm-9:50 pm

2 stops22h 25m

Lisbon Humberto Delgado

Tue 6/10

5:05 am-10:55 pm

2 stops25h 50m

$945

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 5/13

6:00 am-9:35 pm

2 stops31h 35m

Lisbon Humberto Delgado

Tue 5/20

10:15 pm-11:59 pm

2 stops33h 44m

$1,000

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 5/5

11:10 pm-6:05 am

1 stop22h 55m

Lisbon Humberto Delgado

Fri 5/30

7:05 am-9:55 pm

2 stops22h 50m

$1,136

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 25 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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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?

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 25 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 $1,219). 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 37% 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.

Rainfall in Lisbon 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

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

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

7,891 reviews

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

7,891 reviews

Delta

8.0

Very good

7,891 reviews

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

1,318 reviews

Delta

8.0

Very good

7,891 reviews

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

1,569 reviews

Delta

8.0

Very good

7,891 reviews

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

1,423 reviews

Delta

8.0

Very good

7,891 reviews

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

8,608 reviews

Delta

8.0

Very good

7,891 reviews

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

What are the cheapest airlines flying from Portland to Lisbon round-trip?
According to our current data, KLM ($724), Delta ($734), and SWISS ($737) offers the cheapest pricing from Portland to Lisbon. Users have found that KLM is 23% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Portland to Lisbon one-way?
$558 is the cheapest one-way deal found within the past few days, from Air France. You may also be able to find cheap deals on British Airways and Delta, with prices starting from $571 and $576, 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 $38.
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 De Dam more than any other notable places. Anne Frank Huis, Van Gogh Museum and De Dam are located about 6.8 mi, 6.0 mi, and 7.0 mi, respectively from Amsterdam Schiphol if you are interested in checking them out. Travelers can book a car rental at Amsterdam Schiphol for about $45 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 $1,219). 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

Sintra

Almada

Beja

Costa da Caparica

Nazaré

Evora

Torres Vedras

Oeiras

Sesimbra

Fátima

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Alternative routes for Portland to Lisbon

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Other flights to Lisbon

Top 10 airlines flying from Portland to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$434	Average$582	FlexibilityNo cancel fee	On-time76%
Lufthansa	Cheapest$554	Average$972	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$563	Average$720	FlexibilityNo cancel fee	On-time77%
American Airlines	Cheapest$564	Average$674	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$570	Average$938	FlexibilityNo cancel fee	On-time69%
British Airways	Cheapest$572	Average$920	FlexibilityNo cancel fee	On-time70%
Air Canada	Cheapest$586	Average$985	FlexibilityNo cancel fee	On-time67%
KLM	Cheapest$591	Average$966	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$594	Average$945	FlexibilityNo cancel fee	On-timeN/A
Virgin Atlantic	Cheapest$595	Average$873	FlexibilityNo cancel fee	On-time72%

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$467+ 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 5/31. 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

1. Tell us where you want to go

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 February, booked 25 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Portland to Lisbon

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

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Cheapest flights from Portland to LisbonExplore the most affordable flight options available from Portland to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 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 March 26, 2025.

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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 March.

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?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Lisbon. Price data was last updated on March 21, 2025.

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?

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 March 26, 2025.

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.

Rainfall in Lisbon by month

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

Temperature in Lisbon by month

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

Reviews of airlines servicing Lisbon

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.

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?

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 Amsterdam?

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 Portland?

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Alternative routes for Portland to Lisbon

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Top 10 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 March 26, 2025.