Cheap Flights from Portland to Porto

Compare Portland to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

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Flight deals from Portland to Porto

Looking for a cheap last-minute deal or the best round-trip flight from Portland to Porto? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Portland to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Porto flights are currently cheapest in April.

Portland to Porto: Alternative routes

Compare routes from Portland to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Portland to Porto: Flight information

The things to know before you go.
Cheapest flight foundAED 1,777
Cheapest month to flyApril

Finding cheap flights from Portland to Porto: Frequently asked questions

The best price we found for a round-trip flight from Portland to Porto is AED 1,777. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Portland to Porto. But we found flights with one or more stops from AED 1,777.
There are no flights flying from Portland to Porto, as of February 2026.
The cheapest month to fly from Portland to Porto is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Porto Airport on Wednesday, April 15, 2026.
No airlines currently offer direct flights between Portland Airport and Porto Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, KLM offers the cheapest flight tickets to Porto.

Flying from Portland International Airport (PDX) to Porto Airport (OPO): what you need to know

  • Porto's timezone is UTC+0, which makes Porto seven hours ahead of Portland.

  • To ensure you get on your PDX to OPO flight, leave enough time for things like check-in and baggage drop. Arriving two hours ahead of international departures and an hour before domestic flights is the general rule.

  • During popular months such as July, it's a good idea to get to the airport earlier than usual. Arrive two hours before domestic departures and four hours ahead for international flights when you fly during a high season in general.

  • Think about adding a stopover when booking your ticket from Portland International Airport to Porto Airport. Just deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here's where you can stop between PDX and OPO:

    • Newark Liberty International Airport

    • Amsterdam Airport Schiphol

    • John F. Kennedy International Airport

How to find the cheapest flights from Portland International Airport (PDX) to Porto Airport (OPO)

  • The lowest price we've found for a one-way Portland International Airport to Porto Airport flight is AED 1,263. A round-trip plane ticket right now is AED 1,777. Depending on the availability when you book, these fares can change.

  • Don't wait until the last moment. You're more likely to get cheap tickets from PDX to OPO if you book early. Airlines often offer some amazing early bird deals.

  • If you're flexible with your travel plans, try using the 'Whole month' search tool. It'll find the lowest price across every month when looking for a flight from Portland International Airport to Porto Airport.

  • Stay on top of deals for cheap flights from PDX to OPO by creating a Price Alert. You'll get an email or notification through the app when a special offer becomes available.

  • Find the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Portland International Airport to Porto Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Portland International Airport (PDX)

  • PDX is located at 7000 NE Airport Way.

  • Portland International Airport maintains a solid on-time performance, making delays less likely. Departures from PDX land at their destination as scheduled 83.65% of the time.

  • To reach Portland International Airport from central Portland, it'll take about 20 minutes if you're traveling by car. This depends on traffic though. It's approximately 19 kilometers from the airport to the city center.

  • Catching public transport? Expect a journey time of around 45 minutes.

  • Have an early flight from Portland International Airport to Porto Airport? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these stays close to PDX:

Arriving at Porto Airport (OPO)

  • If you're getting in on a late Portland International Airport to Porto Airport flight, nothing beats the convenience of being close to the terminal. Collect your bags from the carousel and then be showered and relaxing not long after at one of these options near OPO:

  • Pick up a Porto Airport rental car and discover Porto and beyond with your own set of wheels. Klass Wagen, Goldcar and Drive & Go are leading providers to choose from here.

  • Booking your vehicle from Porto Airport about three weeks ahead can help you secure the lowest rate.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to central Porto has a drive time of about 20 minutes. It's approximately 16 kilometers away.

  • It'll take around 50 minutes if you're traveling on public transport.

When to fly to Porto Airport (OPO)

  • It's time to work out your trip dates for your flight from Portland International Airport to Porto Airport. August is the most popular month to head to Porto. If you want a more relaxed vibe, go in January.

  • Book your flight from Portland International Airport to Porto Airport for August if you'd like to go to Porto during its warmest month. You can expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

  • Look for cheap tickets from PDX to OPO in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 3ºC (37ºF) and 14ºC (57ºF) on average.

Explore more of Portugal

  • Lisbon is just one of the many places in Portugal waiting to be discovered after you've experienced Porto. Around 274 kilometers away to the south, top sights here include Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • Amadora is another well-known destination in Portugal and is around 274 kilometers south of Porto. No trip is complete without dropping by Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.