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Cheap Flights from Portland to Bilbao

Compare Portland to Bilbao flight deals

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

Book the best Bilbao fare with no extra fees

Flight deals from Portland to Bilbao

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Bilbao Airport? If you want to travel next month, return fares start from $1,923. Find the lowest prices on one-way and return tickets right here.
Bilbao.$1,273 per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Portland on Tue, 29 Sep, arriving in Bilbao.Inbound indirect flight with KLM, departs from Bilbao on Tue, 6 Oct, arriving in Portland.Price includes taxes and charges.From $1,273, select.
Bilbao.$1,293 per passenger.Departing Tue, 6 Oct, returning Tue, 13 Oct.Return flight with KLM.Outbound indirect flight with KLM, departs from Portland on Tue, 6 Oct, arriving in Bilbao.Inbound indirect flight with KLM, departs from Bilbao on Tue, 13 Oct, arriving in Portland.Price includes taxes and charges.From $1,293, select.
Bilbao.$1,295 per passenger.Departing Wed, 23 Sep, returning Wed, 30 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 23 Sep, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Wed, 30 Sep, arriving in Portland.Price includes taxes and charges.From $1,295, select.
Bilbao.$1,324 per passenger.Departing Wed, 28 Oct, returning Wed, 4 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 28 Oct, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Wed, 4 Nov, arriving in Portland.Price includes taxes and charges.From $1,324, select.
Bilbao.$1,460 per passenger.Departing Mon, 17 Aug, returning Mon, 24 Aug.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Portland on Mon, 17 Aug, arriving in Bilbao.Inbound indirect flight with KLM, departs from Bilbao on Mon, 24 Aug, arriving in Portland.Price includes taxes and charges.From $1,460, select.
Bilbao.$1,514 per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with KLM.Outbound indirect flight with KLM, departs from Portland on Tue, 25 Aug, arriving in Bilbao.Inbound indirect flight with KLM, departs from Bilbao on Tue, 1 Sep, arriving in Portland.Price includes taxes and charges.From $1,514, select.
Bilbao.$1,925 per passenger.Departing Tue, 21 Jul, returning Mon, 27 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Tue, 21 Jul, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Mon, 27 Jul, arriving in Portland.Price includes taxes and charges.From $1,925, select.
Bilbao.$1,984 per passenger.Departing Tue, 22 Dec, returning Tue, 29 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Tue, 22 Dec, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Tue, 29 Dec, arriving in Portland.Price includes taxes and charges.From $1,984, select.

Find the cheapest month to fly from Portland to Bilbao

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Bilbao flights are currently cheapest in October.
Jun
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Jul
from $1,925
Aug
from $1,460
Sep
from $1,295
Oct
from $1,293
Nov
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Dec
from $1,984
Jan
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Feb
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Mar
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Apr
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May
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Portland to Bilbao: Alternative routes

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

Bilbao

5km from central Bilbao
ClosestCheapest
from $1,273
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Vitoria

46km from central Bilbao
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Santander

74km from central Bilbao
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Portland to Bilbao: Flight information

The things to know before you go.
Cheapest flight found$1,273
Cheapest month to flySeptember

Finding cheap flights from Portland to Bilbao: Frequently asked questions

The best price we found for a return flight from Portland to Bilbao is $1,272. 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 Bilbao. But we found flights with one or more stops from $1,273.
As of June 2026, there are no flights flying from Portland to Bilbao.
The cheapest month to fly from Portland to Bilbao is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Bilbao Airport on Tuesday, 29 September 2026.
No airlines currently offer direct flights between Portland Airport and Bilbao 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 Bilbao 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 Bilbao is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Air France offers the cheapest flight tickets to Bilbao.

Travelling from Portland Airport (PDX) to Bilbao Airport (BIO): what you need to know

  • Bilbao's timezone is UTC+1, making Bilbao nine hours ahead of Portland.

  • Get to the airport on time so you don't miss your PDX to BIO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Flying during a peak time such as July? Public holidays and other popular seasons can result in longer queues at airport checkpoints. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • Pick a stopover if you prefer to break up your flight. Simply uncheck 'Direct flights only' to see all your options for tickets from Portland Airport to Bilbao Airport. Amsterdam Schiphol Airport is a popular stopover on the PDX to BIO route.

How to find the cheapest flights from Portland Airport (PDX) to Bilbao Airport (BIO)

  • The lowest price we've seen for a one-way Portland Airport to Bilbao Airport flight is $605. A round-trip ticket is currently $1,272. Depending on the availability and when you book, these fares may change.

  • It's often best to book early if you want to get cheap tickets from PDX to BIO. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • If you're flexible with your travel dates, try using the 'Whole month' search tool. It'll find the lowest price in each month when searching for your flight from Portland Airport to Bilbao Airport.

  • Stay on top of deals for cheap flights from PDX to BIO by creating a Price Alert. We'll send you an email or notification on the app when fares go down.

  • Tailor your flights using filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Portland Airport to Bilbao Airport.

Handy information about Portland Airport (PDX)

  • PDX's address is 7000 NE Airport Way.

  • 83% of flights departing from Portland Airport reach their destination as planned. Given its impressive on-time stats, disruptions are unlikely when taking off from PDX.

  • To get to Portland Airport from central Portland, it'll take around 20 minutes by car. Of course, this depends on traffic. It's approximately 19 kilometres from the airport to the city centre.

  • You can expect a trip time of about 40 minutes on public transport.

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

Arriving at Bilbao Airport (BIO)

  • Book a hotel close to BIO if you're catching a late Portland Airport to Bilbao Airport flight. Settle into one of these accommodation options and skip the long transfer:

  • Get on the fast track to adventure by picking up a Bilbao Airport rental car. Grab your wheels from Record Go, Click and Rent or Goldcar to explore Bilbao and beyond.

  • Reserving your vehicle from Bilbao Airport around four weeks in advance gives you the best chance of locking in a great deal.

Getting from Bilbao Airport (BIO) to central Bilbao

  • From Bilbao Airport, Bilbao is approximately 11 kilometres away. It takes around 15 minutes to drive to the centre.

  • Getting there on public transport will take you roughly 30 minutes.

When to fly to Bilbao Airport (BIO)

  • It's time to plan your travel dates for your flight from Portland Airport to Bilbao Airport. June is the most popular month to head to Bilbao. If you want a quieter vibe, go in March.

  • Lock in your flight from Portland Airport to Bilbao Airport for August if you'd like to explore Bilbao during its warmest month. You can expect temperatures of between 16ºC and 26ºC.

  • January sees average temperatures of between 5ºC and 13ºC. Search for cheap tickets from PDX to BIO sometime then if you like cooler conditions.

Explore more of Spain

  • Bilbao is easy to fall in love with, but there are so many other corners of Spain waiting to be explored. Around 241 kilometres south-east of Bilbao, a visit to Zaragoza will fill your itinerary to the brim. Don't miss top attractions like Plaza del Pilar, La Seo del Salvador and Basílica de Nuestra Senora del Pilar.

  • If you're interested in discovering another major stop in Spain, head for Salamanca, roughly 338 kilometres south-west of Bilbao. Catedral de Salamanca, Salamanca, Casco Historico and Plaza Mayor are highlights.

Plan the rest of your trip from Portland to Bilbao

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.