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Flight Deals
Cheap Flights from Portland to Portugal
Cheapest round-trip prices found by our users on KAYAK in the last 5 daysBook Cheap Portland to Portugal Plane Tickets
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Portugal 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.
Discover the best prices for you by selecting your travel dates on KAYAK.
Recent round-trip flight deals from Portland to Portugal
Mon, Dec 7 - Thu, Dec 17
2:45 pm - 12:45 pmPDX Portland-LIS Lisbon Humberto Delgado
14h 00m1 stop Reykjavik Keflavik Intl
2:00 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland
35h 00m1 stop Reykjavik Keflavik Intl
$580Icelandair
Wed, Feb 3 - Tue, Feb 16
2:45 pm - 12:50 pmPDX Portland-LIS Lisbon Humberto Delgado
14h 05m1 stop Reykjavik Keflavik Intl
11:35 am - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland
13h 25m1 stop Reykjavik Keflavik Intl
$610Icelandair
Wed, Feb 17 - Wed, Feb 24
2:45 pm - 8:30 amPDX Portland-LIS Lisbon Humberto Delgado
33h 45m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Barcelona-El Prat
2:55 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland
34h 05m3 stops Warsaw Frederic Chopin Stockholm Arlanda Reykjavik Keflavik Intl
$704Multiple Airlines
Tue, Apr 13 - Fri, Apr 23
5:14 pm - 11:25 pmPDX Portland-OPO Porto
22h 11m2 stops San Francisco Munich Franz Josef Strauss
6:00 am - 8:45 pmOPO Porto-PDX Portland
22h 45m2 stops Frankfurt am Main Vancouver Intl
$708Multiple Airlines
Tue, Apr 13 - Fri, Apr 23
7:00 am - 10:30 amPDX Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
5:00 am - 10:50 amOPO Porto-PDX Portland
13h 50m1 stop Amsterdam Schiphol
$725KLM
Tue, Apr 13 - Fri, Apr 23
7:00 am - 10:30 amPDX Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
5:00 am - 11:10 amOPO Porto-PDX Portland
14h 10m1 stop Amsterdam Schiphol
$725Delta
Sun, Feb 21 - Fri, Feb 26
1:20 pm - 10:30 pmPDX Portland-OPO Porto
25h 10m1 stop Amsterdam Schiphol
5:00 am - 11:20 amOPO Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$728Delta
Sat, Feb 20 - Fri, Feb 26
12:59 pm - 9:30 amPDX Portland-OPO Porto
36h 31m2 stops Houston George Bush Intcntl Newark
6:00 am - 10:16 pmOPO Porto-PDX Portland
24h 16m2 stops Frankfurt am Main Newark
$733United Airlines
Sat, Feb 20 - Thu, Feb 25
12:59 pm - 9:30 amPDX Portland-OPO Porto
36h 31m2 stops Houston George Bush Intcntl Newark
6:00 am - 10:16 pmOPO Porto-PDX Portland
24h 16m2 stops Frankfurt am Main Newark
$733United Airlines
Tue, Apr 13 - Fri, Apr 23
7:00 am - 10:30 amPDX Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
5:55 am - 3:08 pmOPO Porto-PDX Portland
17h 13m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl
$742KLM
Recent one-way flight deals from Portland to Portugal
Mon, Jan 25
2:45 pm - 9:30 pmPDX Portland-LIS Lisbon Humberto Delgado
46h 45m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Bergamo Orio Al Serio
$312Multiple Airlines
Tue, Nov 17
2:45 pm - 5:55 pmPDX Portland-LIS Lisbon Humberto Delgado
43h 10m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Bergamo Orio Al Serio
$316Multiple Airlines
Mon, Feb 1
5:45 pm - 6:50 pmPDX Portland-LIS Lisbon Humberto Delgado
17h 05m1 stop London Heathrow
$338British Airways
Sun, Apr 25
8:25 pm - 11:05 pmPDX Portland-LIS Lisbon Humberto Delgado
18h 40m1 stop London Heathrow
$338British Airways
Mon, Mar 1
1:20 pm - 3:25 pmPDX Portland-OPO Porto
18h 05m1 stop Amsterdam Schiphol
$339KLM
Wed, Apr 28
7:00 am - 10:30 amPDX Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
$340KLM
Mon, Apr 26
5:30 am - 10:30 amPDX Portland-OPO Porto
21h 00m2 stops Seattle/Tacoma Intl New York John F Kennedy Intl
$340Delta
Tue, Apr 27
7:00 am - 10:30 amPDX Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
$340Delta
Sat, Apr 24
11:10 pm - 9:45 amPDX Portland-OPO Porto
26h 35m2 stops Washington, D.C. Dulles Intl Newark
$340United Airlines
Mon, Mar 1
5:15 am - 9:30 amPDX Portland-OPO Porto
20h 15m2 stops Denver Intl Newark
$340United Airlines
Recent last minute flight deals from Portland to Portugal
Sun, Nov 1 - Tue, Nov 17
7:00 am - 8:15 amPDX Portland-OPO Porto
17h 15m1 stop New York John F Kennedy Intl
11:15 am - 11:40 amOPO Porto-PDX Portland
32h 25m1 stop Amsterdam Schiphol
$826Delta
Sun, Nov 1 - Tue, Nov 17
11:00 pm - 10:35 amPDX Portland-OPO Porto
27h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
11:15 am - 11:40 amOPO Porto-PDX Portland
32h 25m1 stop Amsterdam Schiphol
$830Delta
Sun, Nov 1 - Tue, Nov 17
1:44 pm - 3:25 pmPDX Portland-OPO Porto
17h 41m2 stops Minneapolis St Paul Amsterdam Schiphol
5:00 am - 6:55 pmOPO Porto-PDX Portland
21h 55m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$839KLM
Tue, Nov 3 - Tue, Nov 17
2:34 pm - 11:30 pmPDX Portland-LIS Lisbon Humberto Delgado
24h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
5:00 am - 7:12 pmLIS Lisbon Humberto Delgado-PDX Portland
22h 12m2 stops Frankfurt am Main Chicago O'Hare Intl
$841Lufthansa
Tue, Nov 3 - Tue, Nov 17
8:30 am - 10:05 amPDX Portland-LIS Lisbon Humberto Delgado
17h 35m1 stop Washington, D.C. Dulles Intl
5:00 am - 6:20 pmLIS Lisbon Humberto Delgado-PDX Portland
21h 20m2 stops Frankfurt am Main San Francisco
$847United Airlines
Mon, Nov 2 - Thu, Nov 12
7:15 pm - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado
30h 05m2 stops Vancouver Intl Toronto Pearson Intl
10:55 am - 11:52 amLIS Lisbon Humberto Delgado-PDX Portland
32h 57m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$848Air Canada
Tue, Nov 3 - Thu, Nov 12
7:00 am - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado
18h 20m2 stops Vancouver Intl Toronto Pearson Intl
10:55 am - 11:52 amLIS Lisbon Humberto Delgado-PDX Portland
32h 57m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$848Air Canada
Sun, Nov 1 - Wed, Nov 11
11:30 pm - 8:10 amPDX Portland-LIS Lisbon Humberto Delgado
24h 40m2 stops Chicago O'Hare Intl Newark
5:00 am - 10:57 pmLIS Lisbon Humberto Delgado-PDX Portland
25h 57m2 stops Frankfurt am Main San Francisco
$851United Airlines
Mon, Nov 2 - Mon, Nov 16
2:34 pm - 11:30 pmPDX Portland-LIS Lisbon Humberto Delgado
24h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
2:20 pm - 6:09 pmLIS Lisbon Humberto Delgado-PDX Portland
35h 49m2 stops Munich Franz Josef Strauss Denver Intl
$853Lufthansa
Tue, Nov 3 - Tue, Nov 17
7:00 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado
17h 00m1 stop New York John F Kennedy Intl
10:00 am - 10:00 pmLIS Lisbon Humberto Delgado-PDX Portland
20h 00m1 stop New York John F Kennedy Intl
$859KLM
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.
Prices
Airlines
More
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:
• Lisbon Humberto Delgado (LIS) from $580
• Porto (OPO) from $708
• Faro (FAO) from $955
• Funchal Madeira (FNC) from $961
• Lajes (TER) from $1,501
What’s the cheapest month to fly from Portland to Portugal?
These monthly figures are based on KAYAK fares from the past 12 months, with extreme outliers removed so each month's typical price is accurate.
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) (avg. price $919)
• Porto (OPO) (avg. price $967)
• Faro (FAO) (avg. price $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 are the cheapest airlines to fly with from Portland to Portugal?
Fares reflect aggregated pricing data and may not include every trip type.
Looking at KAYAK data from the last 12 months, the cheapest airlines to fly with from Portland to Portugal are:
• Icelandair (avg. price $425)
• Virgin Atlantic (avg. price $478)
• Lufthansa (avg. price $551)
• Air Canada (avg. price $823)
• KLM (avg. price $900)
What's the most popular airline to fly with from Portland to Portugal?
Drawing on KAYAK data from the past three months, the most popular airlines to fly with from Portland to Portugal are:
• Delta
• KLM
• British Airways
• United Airlines
• American Airlines
What are the most popular flight destinations in Portugal?
Lisbon, Porto, Faro, Funchal and Lajes are the most popular flight destinations in Portugal, based on KAYAK data from the past 3 months. Lisbon is the clear favorite, making up 68% of that interest.
How many one-stop flights are there from Portland to Portugal across the week?
There are typically 7 one-stop flights a day from Portland to Portugal (50 a week), with the most operating on Wednesday.
Key details for Portland to Portugal flights
Low season | January |
|---|---|
High season | May |
Cheapest flight | $312 |
Your Portland to Portugal flight questions, answered
Find helpful answers about this route, including flight times, airports, airlines and booking tips.
Your guide to booking Portland to Portugal flights
Get tips on when to book, when to fly and what to know before your trip.Reviews of the top 5 airlines serving from Portland to Portugal
7.8
KLMOverall score based on 1595 reviews
7.2Entertainment
8.4Crew
7.4Food
7.7Comfort
7.8Boarding
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
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
The food could be much better. Also very unfortunate that most of business class seats were empty but I could not upgrade.
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.
Only coffee, tea, and water were complimentary. Seat did not recline.
EVERYTHING was charged for. Continuous Iceland advertising; it was off putting.
Overall professional and reliable; only complaint was the lack of complimentary food or beverages on the flight. I’m not accepting an upcharge on things one can reasonably expect.
Movies were old and third rate. Very poor on a seven hour flight. Food was OK but not business class caliber
Although the flight from JFK to Keflavik is not inexpensive, Iceland Air offers nothing but water, no soft drinks, to passengers without a charge. The seats are uncomfortable, there is no leg room, and there was no available internet to purchase.
Was hard to sleep, but other then that everything was good.
We got to the runway and had to go back to terminal to have plane worked on, which is fine, but the 40 minute connecting flight was already gone because of this delay and had to wait 5 hours to get on a different flight and only got a meal voucher which I didn’t see the email until after I had already ordered and paid for food. I feel I should be compensated.
Hard to figure out how to put back the seat, how to get the entertainment, how to upload passport docs. Also, a warning in the airport that food was all for purchase would have been helpful.
Horrible. My dad was recently hospitalized and diagnosed with lymphoma and Icelandair refused to refund flight even though I had a letter from his physician.
I liked the crew but not the uncomfortable seats and lack of movie and tv selection.
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
Information on your arrival and departure airports
Cabin class types available on flights to Portugal
Cabin classes available on flights to Portugal. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights from other airports in Portland to Portugal
Flights from all airports in Portland to Portugal. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.