PDX - LIS

$400 Find Cheap Flights from Portland to Lisbon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Lisbon departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Lisbon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Lisbon.
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Cheap Flight Deals from Portland to Lisbon (PDX-LIS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Lisbon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Portland to Lisbon

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Portland to Lisbon.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:00 am - 5:45 pmPDX-LIS
29h 45m2 stops
8:45 pm - 5:35 pmLIS-PDX
27h 50m2 stops
Tue, Mar 18 - Tue, Mar 25
10:10 am - 9:20 amPDX-LIS
15h 10m2 stops
10:55 am - 9:34 amLIS-PDX
29h 39m2 stops
$630Air Canada
Find Deal
Tue, Mar 4 - Fri, Mar 14
5:00 am - 9:20 amPDX-LIS
21h 20m2 stops
10:15 am - 12:50 amLIS-PDX
21h 35m2 stops
$642United Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
6:30 pm - 9:45 pmPDX-LIS
19h 15m1 stop
7:05 am - 5:35 pmLIS-PDX
17h 30m1 stop
$651British Airways
Find Deal
Tue, Mar 4 - Fri, Mar 14
6:30 pm - 5:45 pmPDX-LIS
15h 15m1 stop
7:05 am - 5:35 pmLIS-PDX
17h 30m1 stop
$654British Airways
Find Deal
Tue, Mar 4 - Tue, Mar 11
11:58 pm - 10:15 amPDX-LIS
27h 17m2 stops
6:10 am - 12:50 amLIS-PDX
25h 40m2 stops
$677United Airlines
Find Deal
Mon, Mar 10 - Mon, Mar 24
1:00 pm - 11:30 pmPDX-LIS
27h 30m2 stops
6:10 am - 9:10 pmLIS-PDX
22h 00m2 stops
$686Lufthansa
Find Deal
Wed, Mar 12 - Wed, Mar 19
7:35 am - 9:15 amPDX-LIS
18h 40m2 stops
7:05 am - 5:35 pmLIS-PDX
17h 30m1 stop
$751American Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
7:25 pm - 11:00 pmPDX-LIS
19h 35m1 stop
7:20 am - 5:35 pmLIS-PDX
18h 15m1 stop
$829American Airlines
Find Deal
Sun, Apr 27 - Thu, May 8
9:55 am - 11:30 pmPDX-LIS
29h 35m2 stops
5:05 am - 8:09 pmLIS-PDX
23h 04m2 stops
$909Lufthansa
Find Deal
Tue, Apr 22 - Wed, Apr 30

Flights from Portland to Lisbon - Travel Insights & Trends

Get data-powered insights and trends into flights from Portland to Lisbon to help you find the cheapest flights, the best time to fly and much more.
Find cheap flights to Lisbon
Find cheap flights to Lisbon

Planning a trip from Portland to Lisbon? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Portland to Lisbon?

The average price of all round-trip flights from Portland to Lisbon clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Lisbon on a Wednesday and more expensive on a Thursday. On your return trip to Portland, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Lisbon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Portland to Lisbon is February, where tickets cost $636 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,498 and $1,248 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Lisbon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Portland to Lisbon, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

High season

October

Cheapest flight

$400
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Portland to Lisbon

When to book flights from Portland to Lisbon

Are your dates flexible? Find out the best times to travel from Portland to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Lisbon

  • Which kid-friendly amenities does Delta Air Lines have on flights from Portland to Lisbon?

    Delta Air Lines offers a range of kid-friendly amenities on flights from Portland to Lisbon. Young travelers can enjoy Delta Sky Kids packs, filled with activity books and games. The in-flight entertainment system provides a variety of family-friendly movies, TV shows, and cartoons. These amenities ensure a comfortable and enjoyable journey for children on board.

  • Can I board Delta Air Lines with my pet from Portland to Lisbon?

    Yes, Delta Air Lines allows passengers to travel with pets from Portland to Lisbon. However, there are certain requirements and restrictions. Pets must be booked as cargo, and their total weight (including the carrier) should not exceed 70 lbs.

  • Can I pre-select my seat on British Airways flights from Portland to Lisbon?

    Yes, you can pre-select your seat on British Airways flights from Portland to Lisbon. It is advisable to do so during the booking process or by accessing your reservation through the airline's website or mobile app. Pre-selecting your seat allows you to choose your preferred seat location, such as by the window or aisle, ensuring a more comfortable journey.

  • Which public transportation options are available after my flight from Portland to Lisbon?

    After your flight from Portland to Lisbon, you can utilize various public transportation options. The city offers an efficient public transportation network, including buses, trams, and the metro. The metro system covers several areas of Lisbon, while buses and trams provide extensive coverage throughout the city. These options make it easy to explore Lisbon's attractions, neighborhoods, and surrounding areas conveniently and affordably.

  • What is the cheapest flight from Portland to Lisbon?

    In the last 3 days, the lowest price for a flight from Portland to Lisbon was $400 for a one-way ticket and $575 for a round-trip.

  • Do I need a passport to fly between Portland and Lisbon?

    A passport is required to fly from Portland to Lisbon.

  • Which airports will I be using when flying from Portland to Lisbon?

    Portland and Lisbon are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Lisbon Humberto Delgado.

  • Which aircraft models fly most regularly from Portland to Lisbon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Lisbon?

    oneworld, and Star Alliance are the airline alliances operating flights between Portland and Lisbon, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Lisbon from Portland?

    London is the most popular layover city among KAYAK users traveling from Portland to Lisbon.

  • Which is the best airline for flights from Portland to Lisbon, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Lisbon are United Airlines and American Airlines. With an average price for the route of $939 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $782 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Portland to Lisbon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Lisbon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Lisbon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Lisbon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to Portland with another airline. Booking your flights between Portland and LIS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Lisbon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Portland to Lisbon

  • Delta Air Lines aids sustainability travel on flights from Portland (PDX) to Lisbon (LIS) by implementing several initiatives. They use fuel-efficient aircraft, employ sustainable operational practices, and invest in carbon offset programs. They prioritize waste reduction and recycling, as well as promote sustainable sourcing and responsible consumption.
  • American Airlines offers a variety of special meals for flights from Portland to Lisbon. Passengers can choose from options such as vegetarian, vegan, gluten-free, kosher, and halal meals. Additionally, they provide options for diabetic, low-sodium, and lactose-free diets. It is recommended to request these special meals at least 24 hours before the flight departure to ensure availability and accommodate dietary needs.
  • Delta Air Lines offers seat-upgrade options for flights from Portland to Lisbon. Passengers can choose to upgrade to Delta One, the airline's premium cabin, which offers lie-flat seats, enhanced dining options, and personalized service. Additionally, Delta Comfort+ provides extra legroom and priority boarding. Economy passengers can also bid for an upgrade through Delta's Upgrade with Miles program or opt for paid upgrades based on availability.
  • American Airlines offers a range of in-flight entertainment options on flights from Portland to Lisbon. Passengers can enjoy a selection of movies, TV shows, music, and games on personal seatback screens. Additionally, Wi-Fi connectivity is available for browsing the internet, accessing social media, and staying connected throughout the flight.
  • Delta Air Lines commonly offers layovers on flights from Portland to Lisbon in cities such as Atlanta, New York (JFK), and Amsterdam. These layovers provide passengers with opportunities to connect to their onward flights. Please note that specific layover options may vary depending on the date and time of travel.
See more tips

Top 5 airlines serving from Portland to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from Portland to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Lisbon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 8219 reviews
7.3Food
8.2Boarding
8.5Crew
7.9Entertainment
8.0Comfort
Airline reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

10.0 ExcellentStephen, Feb 2025SFO - JFK
Read more Delta reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Kind staff. Snacks are small but that’s the new normal.

Overall, terrible. Flight from SFO was delayed due to “air traffic control issues”, and we were all mislead about connecting flights. Told “you have 20 minutes to catch your connection”. Reality was 5. We got to watch the plane sit at the bridge. Won’t fly Delta with a connection again.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

There was fog in Amsterdam so many flights were delayed because of the weather. Air France knew that the flight would be delayed by two hours but still boarded the plane on time. Instead of letting the passengers wait at the gate we were crammed into the plane. It was uncomfortable. No refreshments were given. I couldn’t charge my devices onboard.

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

Seats were comfortable crew members support was very good but AVML ordered or selected by us needs a lot of improvement.

Transavia flight, was booked as KLM but i couldnt select seat or access boarding pass with KLM at all. Crammed seating and very no frills experience all around. First and last time.

Transavia flight. Couldn't select seat or anything prior to flight. No connection with klm systems. Seats are very crammed. Extremely no frills.

Overall a very pleasant flight. No significant issues on either flight. Amsterdam airport is very convenient for connecting

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Liked nothing. As per previous segment it was delay delay delay.

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Our seats were all the way in back of the plane,

Food choices were very limited. Taste of the dishes was average.

I liked nothing about this flight nor the incredible lack of service and communication on this flight from the Captain to every staff member. Arrogant, entitled and lacking any kind of basic customer service

Efficient board despite a 100% sold out flight. It’s crowded on the plane but crew was working hard to get us off the ground on time and served dinner and breakfast. Food was good.

Everything should be better, terrible flight and airport service. Delayed for 6 hours, flying around for 1 hr, and keeping us on a plane for another 2,5 -3hrs.

The plane was dirty. It appeared that Air Canada did not know vacuum cleaners had been invented. Second, the overhead bins were about 1/3 or 1/2 the size of "normal" bins. That was a problem. The worst was disembarking in the weather in Montreal. I have cold agglutinin disease. That means my red blood cells clump together and then are destroyed when exposed, even by breathing to cold air. A few seconds of exposure can be dangerous. I am now experiencing extreme fatigue caused by the anemia from that experience. I should have had more assistance descending a narrow ramp and then traversing, even if only a few feet, of icy pavement. The blowing snow penetrated my facial covering and has caused problems.

Good airport. Good entertainment on the big flight. Did not have a good way to prop up or mount my phone/ipad

I booked my flight ni November and was placed on standby? How does this happen. Flight was 1 1/2 hours late departure plane was switched to a smaller plane easy to tell this is a government run company they don’t care about anyone

Boarding was a disaster one person checking in 200 people took 25 min to check in zone 1&2.

Old, noisy plane, bad coffee, delayed. Flight attendant was very nice.

Boarding could be improved, no need to wait after a previous group is completed

We boarded 1.5 hours late. Long wait for the bags when we got to Mexico City. Long wait to get on plane with people mover truck. Friendly staff. They answered all questions as best the could. Such a long, long walk from the plane to customs. Thank you, Michael A. Burris Cambridge, Massachusetts USA

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

They took my carry on and checked it in. Staff in general at Heathrow are not friendly or helpful

The crew were professional and friendly. It was the most uncomfortable international flight I've ever flown. Crammed in passengers. No overhead space to put my bag. No leg room and unable to recline seat due to seats too close together so it upset passenger behind me! Upgrade price to get 2 inches of more space unreasonable.

Boarding in Dallas was hell with extremely rude gate agents , especially a lady named Rajathi who was the epitome of rudeness with no compassion at all . She was horrible and I wonder why airlines have people like her on their roster who exude arrogance and haughtiness . Will probably not fly British Airwsys because of people like her .

Less than average, low level of shared required information needed during the transfer from airport to another, also the used team during boarding In Indianapolis station is Not Professional

Food was average. Better headphones seats were average at best.

Nice flight. Legroom was good. Food was good. Staff was friendly and helpful. Plane was modern and clean. Seats and headrests were comfortable. Entertainment system was good and modern, with a bright LCD screen and many appealing choices.

I have something to say about the flight I took from London to Gothenburg, after my flight from Austin to London. I fly a lot and have done so for decades. I first flew to Scandinavia in 1973. My former wife is Norwegian. The main thing was the experience at the Gothenburg airport. Three flights from Britain arrived around the same time. So there were huge lines at immigration since Brits are no longer a part of the EU. After over an hour in line, I finally gave my passport to the immigrations man. You’d have thought I was an Afghan. I just barely got into Sweden. I had to answer all kinds of blunt questions. I had to show all kinds of onward tickets, addresses of places I’d be staying and it was pretty daunting. Perhaps it has to do with the situation with Russia. British Air might have done something to prepare people that things have changed a lot and they’d better be ready to run the gauntlet when trying to get into the country here. Thanks for listening and taking this into consideration. Sincerely, a senior citizen of the USA

No land services during boarding, specially while moving from terminal to another

My flight was late. We stayed in aircraft one hour 😩

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