$292 Find Cheap Flights from Portland to Portugal - Compare and Save

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Cheap Flights from Portland to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Porto
13h 10m2 stops
from $706per person
Lisbon
13h 50m2 stops
from $715per person
Funchal
21h 30m4 stops
from $882per person
Faro
16h 30m2 stops
from $929per person
Booking Insights

Price, demand and travel trends for Portland to Portugal flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Portland to Portugal cheaper or more expensive than last year?

Fares from Portland to Portugal are running about the same as they were around this time last year, averaging $946 round-trip.

What are the cheapest fares from Portland to Portugal right now?

Here are the cheapest round-trip fares from Portland to Portugal on KAYAK in the last week:

• Porto (OPO) from $706
• Lisbon Humberto Delgado (LIS) from $715
• Funchal Madeira (FNC) from $882
• Faro (FAO) from $929

What’s the cheapest month to fly from Portland to Portugal?

February is the cheapest time of year to fly, with average fares of $599. Prices are highest in June, when average flight costs increase to around $1,326.

When is the best time to book flights from Portland to Portugal?

Book your flights 6 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 28% compared to booking last-minute (within 2 weeks of departure).

Which airport in Portugal is the cheapest to fly to from Portland?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Portugal are:

• Lisbon Humberto Delgado (LIS) from $919
• Porto (OPO) from $967
• Faro (FAO) from $1,112

What’s the cheapest day to fly from Portland to Portugal?

Monday tends to be the cheapest day to fly from Portland to Portugal, while Wednesday is the most expensive. Fares run about 22% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Portland to Portugal?

Data from the past 12 months shows it's cheapest to fly to Portugal during the night with average prices of $502. The evening is the most expensive time to fly, with average prices of $997.

Key details for Portland to Portugal flights

Low season

January

Cheapest flight

$292
Beat the crowds with an average 62% drop in travelers.
One-way flight from Portland to Lisbon

Your Portland to Portugal flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Portland to Portugal?

    Yes. Fares from Portland to Portugal are low right now. As a rule of thumb, a round-trip under $714 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Portland to Portugal?

    Over the past 12 months, round-trip fares from Portland to Portugal have ranged from $714 to $1,211.

  • What are the main airports serving Portugal?

    Portugal has 5 airports. The three busiest are Lisbon Humberto Delgado (LIS) (68% of arrivals), Porto (OPO) (23%) and Faro (FAO) (5%).

  • What airlines fly nonstop from Portland to Portugal?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Portland to Portugal. One-stop options include:

    • KLM
    • Delta
    • American Airlines

  • Which cabin classes are available on flights from Portland to Portugal?

    On flights from Portland to Portugal you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Portugal?

    KAYAK travelers' favorite landmarks in Portugal include:

    • Chiado
    • Ribeira Square
    • Avenida dos Aliados
    • Praça do Marquês de Pombal

  • Do I need to get a visa for flights from Portland to Portugal?

    American citizens who will be taking flights from Portland to Portugal won't need to be worried about obtaining visas first. As long as you won't remain in Portugal for over 90 days, you'll be able to enter the country with just a valid U.S. passport.

  • Are there any nonstop flights available for those traveling from Portland to Portugal?

    Nonstop flights from Portland to Portugal are nonexistent. But there are one-stop flights that will get you to Portugal relatively fast. Delta, for instance, has one-stop flights to Lisbon Humberto Delgado Airport that stops at John F. Kennedy International Airport (JFK), while KLM flies to Francisco Sá Carneiro Airport in Porto with a stopover at Amsterdam Airport Schiphol (AMS).

  • Where will airlines typically make stops on the way from Portland to Portugal?

    Airlines are usually going to take at least one stop during flights from Portland to Portugal, and sometimes they'll take two or even three stops before arriving at their final destinations. These stops might occur at airports like John F. Kennedy International Airport, Los Angeles International Airport (LAX), or London Heathrow Airport (LHR).

  • Which airline should I choose when flying from Portland to Portugal if I care about sustainability?

    Most airlines are making pushes to become carbon-neutral in the coming years, but few have put dramatic plans in place like American Airlines has. This airline is working on upgrading its fleet and all the equipment it uses in an attempt to push sustainability to the forefront.

Your guide to booking Portland to Portugal flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 6 weeks before your trip. KAYAK data shows fares in this window are around 28% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Wednesday cost about 22% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Lisbon Humberto Delgado (LIS) is the cheapest airport to fly into from Portland. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Lisbon, which is the most popular destination in Portugal. From there, it's easy to continue on to other popular destinations such as Porto, Albufeira and Funchal.
  • Before people catch flights from Portland to Portugal, they'll need to decide which airport in Portugal would be their best option. All flights between these two places will depart from Portland International Airport (PDX), but they won't all end up at the same airport. Many flights from PDX to Portugal will land at Francisco Sá Carneiro Airport (OPO) near Porto, but Humberto Delgado Airport (LIS) near Lisbon is another great option.
  • Many airlines can fly you from Portland International Airport (PDX) to one of the airports in Portugal. Your potential options will include American Airlines, British Airways, Delta, KLM, and United Airlines. Take advantage of the fact that so many airlines offer flights from Portland to Portugal and search for the cheapest ones.
  • It'll be important to arrive at Portland International Airport (PDX) at least 2 hours early for flights to Portugal. If you end up with free time on your hands, park yourself at one of the lounges like the Delta Sky Club, which is available to Delta passengers, or the United Club, which is open to United Airlines passengers.
  • If you can afford to fly first class on flights from Portland to Portugal, it’s worth the upgrade. You're going to spend more than enough time up in the air, so you deserve to kick back and relax in a large seat that you'll be able to fold down and use as a bed on some airlines. An airline like American Airlines will keep you comfortable by providing the ultimate luxury travel experience in the first class cabin.
  • Parents planning to take flights from Portland to Portugal might not be looking forward to spending a ton of time on planes with their kids. You'll be happy to hear that Delta will make the experience more pleasant than you thought it would be. This airline will supply your children with activity kits and movies to make sure they stay busy.

Reviews of the top 5 airlines serving from Portland to Portugal

 
Need help choosing which airline to fly with from Portland to Portugal? 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.
7.8
KLMOverall score based on 1580 reviews
7.3Food
7.2Entertainment
7.8Boarding
7.7Comfort
8.4Crew
Airline reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

4.0 OkayJessica, Sep 2026
Read more KLM reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Had to cancel and rebook, KLM connection was cancelled prior to departure, ended up flying to Munich on non-Delta carrier.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Overall Delta was amazing from automatically booking us on the next flight once we missed our connection due to a delay to the constant communication throughout the entire process. We will continue to fly Delta going forward more and pay a little more if needed.

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

It was serviceable, nothing special but nothing awful on this leg.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

Warning- Air Canada makes it almost impossible to get a refund if a flight is cancelled. My flight was cancelled due to a damaged plane. This airline then rebooked me for a later flight. I went on line and tried to navigate their site to rebook to another within my original itinerary and I had thought I had changed it the first time, but since their site is nothing like our sites here in the states, you had to closely look for the links to complete the process. Then came the other problem. Trying to get a $45 refund on check in baggage, that I had paid for one day in advance. I tried calling the airline's customer service. They stated they are unable to process refunds for this. They then referred me to an on line site. This site required you to answer a multitude of drop down questions that are not applicable to a simple flight cancelation. Then right when I think I am done, it asks for an "incident number". I then eventually fly into Vancouver BC International Airport and speak to 3 Air Canada employees. They then tell me they cannot refund me my check in bagge fee. Once again, they refer me to this ridiculous site . They then give me a code to list and tell me to use the airport code, plus the letters AC followed by the flight # to list as an incident #. I tried this and guess what, it failed. Kayak, if you're listening. Something is very ethically wrong with Air Canada's refund process, especially when one of their planes is damaged and a flight is canceled. I have flown for many years, every week for a long time period with many airlines. Please post this so the public can see this accurate assessment of their airline customer service failure.

Great flight attendants, great luggage tracking, pretty good trans-pacific business class setup, food was modest. Only paid WiFi in business class unless you enter an Air Canada member number at the time of booking (e.g., no Star Alliance member number). Vegetarian food was tasty but had no protein. Overall, a good mainstream North American carrier flight experience. Acceptable if the price is right. Otherwise, I might choose an Asian carrier for elevated experience.

It was pretty straight forward, no glitches or hidden costs

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

PDX staff was great and we arrived on time in YVR.

Horrible I had a health emergency and couldn’t go Air Canada refused to allow me to reschedule

Really poor travel experience. My first flight was cancelled, which cut my international trip short and threw off my schedule. I will not be flying Air Canada again if I can so help it. The crew and in-flight experience was pleasant and enjoyable but the consistent delays and cancellations are not worth it.

Economy middle seat was so narrow that I could not sit back comfortably with passengers on either side of me. Over the 9-hour flight, with my body slightly twisted most of that time, my previously-healthy left knee became very painful, even though I got up to walk multiple times. The knee is still painful 3 weeks later. Otherwise, it was a nice flight, but I was crippled over my entire vacation.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Good crew and boarding process. Horrible food and one of the most uncomfortable aircraft seats I have ever sat in. The cabin temperature was warm which made it hard for my family to sleep.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

Flight delayed and we were forced to check our carryon bags which was huge inconvenience.

First leg delay, rescheduled second leg without our approval, cancelled rescheduled second leg, rescheduled cancelled leg to three days later...

We were seated in the rear of the plane. Buses arrived to take us to the terminal but there weren’t enough so we waited an hour to leave the plane.

Every flight was late in arrival, last was late in departure and late in arrival, then lost our luggage!

They canceled the flight and would not rebook us within several days

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

More options for your flight from Portland to Portugal

Complete your trip to Portugal with a hotel stay or car rental