PDX - OPO

$406 Find Cheap Flights from Portland to Porto - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$694
Typical prices: $836-$1,203
Multiple Airlines
Fri 4/13Mon 4/23
PDX - OPO • 2 stops
Cheapest one-way
$335
Typical prices: $489-$756
United Airlines
Thu 3/1
PDX - OPO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Portland and Porto. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
8 weeks
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 44% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
New York John F Kennedy Intl (JFK)
Cheapest • Avg $979 (round-trip)
Amsterdam Schiphol (AMS)
Shortest trip • 14h 17m (one-way)
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Insights
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Flight Deals

Cheap Flights from Portland to Porto (PDX-OPO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Porto

Tue, Apr 13 - Fri, Apr 23
Multiple Airlines Logo
3:15 pm - 11:25 pmPDX  Portland-OPO Porto
24h 10m2 stops Vancouver Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:00 am - 6:30 pmOPO  Porto-PDX Portland
20h 30m2 stops Frankfurt am Main Vancouver Intl
$694Multiple Airlines
Sun, Feb 28 - Wed, Mar 10
British Airways Logo
5:45 pm - 4:45 pmPDX  Portland-OPO Porto
15h 00m1 stop London Heathrow
British Airways Logo
8:40 pm - 6:09 pmOPO  Porto-PDX Portland
29h 29m2 stops Madrid Barajas Dallas/Fort Worth
$711British Airways
Tue, Apr 13 - Fri, Apr 23
KLM Logo
7:00 am - 10:30 amPDX  Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
KLM Logo
5:00 am - 11:10 amOPO  Porto-PDX Portland
14h 10m1 stop Amsterdam Schiphol
$715KLM
Sun, Feb 28 - Wed, Mar 10
British Airways Logo
12:01 pm - 4:45 pmPDX  Portland-OPO Porto
20h 44m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
8:40 pm - 6:09 pmOPO  Porto-PDX Portland
29h 29m2 stops Madrid Barajas Dallas/Fort Worth
$715British Airways
Tue, Apr 13 - Fri, Apr 23
KLM Logo
7:00 am - 10:30 amPDX  Portland-OPO Porto
19h 30m1 stop New York John F Kennedy Intl
KLM Logo
5:00 am - 11:10 amOPO  Porto-PDX Portland
14h 10m1 stop Amsterdam Schiphol
$725KLM
Sun, Feb 28 - Wed, Mar 10
KLM Logo
1:20 pm - 11:25 amPDX  Portland-OPO Porto
14h 05m1 stop Amsterdam Schiphol
KLM Logo
5:00 am - 11:20 amOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$728KLM
Tue, Mar 2 - Wed, Mar 24
Delta Logo
11:40 am - 10:00 pmPDX  Portland-OPO Porto
26h 20m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:00 am - 12:20 pmOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$729Delta
Tue, Mar 2 - Wed, Mar 24
United Airlines Logo
7:00 am - 9:30 amPDX  Portland-OPO Porto
18h 30m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 10:37 pmOPO  Porto-PDX Portland
23h 37m2 stops Frankfurt am Main San Francisco
$733United Airlines
Mon, Mar 1 - Fri, Mar 5
United Airlines Logo
12:59 pm - 9:30 amPDX  Portland-OPO Porto
36h 31m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
12:35 pm - 9:45 amOPO  Porto-PDX Portland
29h 10m2 stops Newark Denver Intl
$747United Airlines
Sun, Feb 14 - Sun, Feb 28
Delta Logo
1:20 pm - 3:25 pmPDX  Portland-OPO Porto
18h 05m1 stop Amsterdam Schiphol
Delta Logo
5:00 am - 11:20 amOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$778Delta
Booking Insights

Price, demand and travel trends for Portland to Porto flights

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

What's the cheapest day of the week to fly from Portland to Porto?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Portland to Porto. It’s 14% cheaper than the average day, while Friday is the most expensive, with prices 24% higher.

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

•November is the cheapest month to fly from Portland to Porto at $542 round-trip.
•October ($1,205) and July ($1,199) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 122% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Portland to Porto the cheapest?

Flights from Portland to Porto are cheapest 8 weeks before departure. Booking in this window typically costs about 49% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Portland to Porto flights

Low season

February

Cheapest flight

$335
Beat the crowds with an average 71% drop in travelers.
The most popular month to fly with an average 75% increase in travelers.
One-way flight from Portland to Porto

When to book flights from Portland to Porto

Are your dates flexible? Find out the best times to travel from Portland to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Portland to Porto flight questions, answered

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

  • What cabin classes can I book on flights from Portland to Porto?

    Four cabin classes are available on flights from Portland to Porto:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Portland to Porto?

    A nonstop flight from Portland to Porto takes 00m, covering 5,183 miles.

  • Do I need a passport to fly from Portland to Porto?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Portland to Porto flight?

    Round-trip flights from Portland to Porto range from $836 to $1,203, with an average of $967 over the past 12 months. Anything below $836 counts as a good deal.

  • How expensive are last-minute Portland to Porto flights?

    Last-minute fares on this route (booked within two weeks of departure) run 38% above the $967 route average. Book 8 weeks before departure for the lowest fares.

  • How are flight prices from Portland to Porto looking right now?

    One-way fares from Portland to Porto are currently higher than usual. Average one-way flight prices are about $667, which is 14% above the typical average for this route.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from Portland to Porto?

    Flights from Portland to Porto usually depart from Portland (PDX) and arrive at Porto (OPO).

  • Which airports do connecting flights from Portland to Porto pass through?

    One-stop flights from Portland to Porto most commonly connect through:

    • Amsterdam Schiphol (AMS) - 79% of one-stop connections
    • Newark (EWR) - 15% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Portland to Porto?

    Yes. Flexible dates can save you up to 31% on flights from Portland to Porto. Tuesday is the cheapest departure day at $837 round-trip on average, while Friday is the most expensive at $1,205, a difference of $368.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Portland to Porto?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 14h 17m, compared with 16h 28m via Newark (EWR) and 16h 36m via New York John F Kennedy Intl (JFK).

  • What is the time difference between Portland and Porto?

    Porto is 7 hours ahead of Portland (Western European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

Your guide to booking Portland to Porto flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average $837, about $368 less than Friday fares (31% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 49% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Portland to Porto trip for November. Fares historically average $542 round-trip in that month - typically $663 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

    • Opo Hotel Porto Aeroporto

More options for your flight from Portland to Porto

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

Car rentals in Porto
Hotels in Porto
Vacations in Porto