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$332+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
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 68 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 July 11, 2025.

Round-trip from

$570
(Booking.com)

One-way from

$332
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,210
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. 25% potential increase in price ($323 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 July 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 July 11, 2025.

This Booking.com deal was found by Cheapflights users on 7/10. 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 Booking.com 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
Thu 11/139:20 pmLIS - PDX
1 stop27h 40mIcelandair
Deal found 7/10$570
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Sun 11/168:20 amPDX - LIS
1 stop17h 55mUnited Airlines
Tue 11/2511:20 amLIS - PDX
2 stops39h 20mUnited Airlines
Deal found 7/10$580
This Priceline deal was found by Cheapflights users on 7/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:15 pmPDX - LIS
2 stops35h 05mAir Canada
Thu 11/1310:55 amLIS - PDX
2 stops43h 38mAir Canada
Deal found 7/11$582
This Finnair deal was found by Cheapflights users on 7/9. 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.
Sat 11/85:55 amPDX - LIS
2 stops19h 10mMultiple Airlines
Sat 11/1510:30 amLIS - PDX
2 stops18h 31mMultiple Airlines
Deal found 7/9$614
This Ovago deal was found by Cheapflights users on 7/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:45 pmPDX - LIS
1 stop20h 00mBritish Airways
Sat 11/156:40 pmLIS - PDX
1 stop29h 15mBritish Airways
Deal found 7/9$618
This FlightHub deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:25 pmPDX - LIS
2 stops33h 55mLufthansa
Tue 10/2811:20 amLIS - PDX
2 stops38h 10mLufthansa
Deal found 7/11$630
This KLM deal was found by Cheapflights users on 7/9. 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.
Mon 10/207:00 amPDX - LIS
1 stop17h 00mKLM
Tue 10/2810:00 amLIS - PDX
1 stop20h 29mKLM
Deal found 7/9$648
This Delta deal was found by Cheapflights users on 7/9. 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.
Mon 10/207:00 amPDX - LIS
1 stop17h 00mDelta
Tue 10/285:30 amLIS - PDX
2 stops16h 09mDelta
Deal found 7/9$660
This American Airlines deal was found by Cheapflights users on 7/9. 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 10/67:25 pmPDX - LIS
1 stop19h 45mAmerican Airlines
Thu 10/1611:05 amLIS - PDX
2 stops20h 01mAmerican Airlines
Deal found 7/9$693

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 July 11, 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

Sat 11/1

3:45 pm-8:20 pm

1 stop21h 35m

Lisbon Humberto Delgado

Thu 11/13

9:20 pm-5:00 pm

1 stop27h 40m

$570

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/16

8:20 am-10:15 am

1 stop17h 55m

Lisbon Humberto Delgado

Tue 11/25

11:20 am-6:40 pm

2 stops39h 20m

$580

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 11/1

3:15 pm-9:20 am

2 stops35h 05m

Lisbon Humberto Delgado

Thu 11/13

10:55 am-10:33 pm

2 stops43h 38m

$582

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 11/8

5:55 am-9:05 am

2 stops19h 10m

Lisbon Humberto Delgado

Sat 11/15

10:30 am-9:01 pm

2 stops18h 31m

$614

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/9

5:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Sat 11/15

6:40 pm-3:55 pm

1 stop29h 15m

$618

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

3:25 pm-9:20 am

2 stops33h 55m

Lisbon Humberto Delgado

Tue 10/28

11:20 am-6:30 pm

2 stops38h 10m

$630

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 10/28

10:00 am-11:29 pm

1 stop20h 29m

$648

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 10/28

5:30 am-2:39 pm

2 stops16h 09m

$660

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/6

7:25 pm-11:10 pm

1 stop19h 45m

Lisbon Humberto Delgado

Thu 10/16

11:05 am-11:06 pm

2 stops20h 01m

$693

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 9/12

10:55 pm-9:20 pm

2 stops38h 25m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 18 results
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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 June 27, 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 68 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 $1,130). 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 July 11, 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.

How much does it cost to fly round-trip from Portland to Lisbon?

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated July 11, 2025.
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
8.0
Very good
7,951 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,951 reviews
Delta
8.0
Very good
7,951 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very good
7,951 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,846 reviews
Delta
8.0
Very good
7,951 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,951 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,695 reviews
Delta
8.0
Very good
7,951 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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, Icelandair ($570), United Airlines ($580), and Air Canada ($582) offers the cheapest pricing from Portland to Lisbon. Users have found that Icelandair is 38% cheaper than the other options available to this destination.

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

    $361 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Lufthansa and Air Canada, with prices starting from $462 and $469, 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, 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 $43.

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

    Amsterdam travelers tend to visit Museumplein, Van Gogh Museum, and Anne Frank Huis more than any other notable places. Museumplein, Van Gogh Museum and Anne Frank Huis are located about 6.0 mi, 6.0 mi, and 6.8 mi, respectively from Amsterdam Schiphol if you are interested in checking them out. Travelers can book a car rental at Amsterdam Schiphol for about $42 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 $1,130). 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
Oeiras
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Sesimbra
Colares

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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
Boise to Lisbon flights
Portland to Faro flights
Redmond to Lisbon flights
Eugene to Lisbon flights
Portland to Ponta Delgada flights
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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$434Average$495FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$554Average$977FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$563Average$720FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$683FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$573Average$842FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$573Average$949FlexibilityNo cancel feeOn-time70%
DeltaCheapest$579Average$912FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$583Average$1,017FlexibilityNo cancel feeOn-time67%
KLMCheapest$584Average$970FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$595Average$873FlexibilityNo cancel feeOn-time72%

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