What is the cheapest airline that flies from Portland to Bilbao?

KLM is the most popular carrier operating from Portland to Bilbao

When did momondo last update prices for flights from Portland Airport to Bilbao Airport?

Prices for flights from Portland Airport to Bilbao Airport are updated daily.

How many operators does momondo search for flights from Portland Airport to Bilbao Airport?

The number of operators available for flights from Portland Airport to Bilbao Airport is 2 as of August 2025.

How old do you have to be to fly from Portland Airport to Bilbao Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Bilbao Airport.

What documentation or ID do you need to fly to Bilbao Airport?

The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$381 Cheap Flights from Portland to Bilbao (PDX-BIO) in 2025

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Find the cheapest flights from Portland to Bilbao (PDX-BIO)

Round-trip

One-way

Cheap round-trip flights

11:07 am - 4:40 pmPDX-BIO

20h 33m2 stops

11:35 am - 12:19 amBIO-PDX

45h 44m3 stops

$623United Airlines

Find Deal

Tue, Feb 10 - Mon, Feb 16

3:25 pm - 8:15 pmPDX-BIO

43h 50m2 stops

7:05 pm - 11:01 pmBIO-PDX

36h 56m2 stops

$634

Find Deal

Sun, Oct 5 - Sun, Oct 12

2:15 pm - 6:25 pmPDX-BIO

19h 10m2 stops

7:10 pm - 11:01 pmBIO-PDX

36h 51m2 stops

$658Lufthansa

Find Deal

Fri, Oct 3 - Mon, Oct 13

1:40 pm - 4:40 pmPDX-BIO

18h 00m2 stops

6:50 am - 11:00 amBIO-PDX

13h 10m1 stop

$684Delta

Find Deal

Sun, Oct 5 - Sun, Oct 12

12:55 pm - 4:30 pmPDX-BIO

18h 35m1 stop

6:50 am - 11:00 amBIO-PDX

13h 10m1 stop

$774KLM

Find Deal

Sun, Oct 5 - Sun, Oct 12

7:15 am - 10:25 amPDX-BIO

18h 10m2 stops

6:50 am - 11:20 amBIO-PDX

13h 30m1 stop

$803Delta

Find Deal

Fri, Oct 3 - Mon, Oct 13

1:05 pm - 10:45 pmPDX-BIO

24h 40m1 stop

6:50 am - 11:20 amBIO-PDX

13h 30m1 stop

$951KLM

Find Deal

Fri, Oct 3 - Mon, Oct 13

3:54 pm - 11:05 pmPDX-BIO

23h 11m2 stops

6:45 am - 8:38 pmBIO-PDX

22h 53m2 stops

$2,776Lufthansa

Find Deal

Mon, Oct 27 - Mon, Nov 24

11:58 pm - 12:50 pmPDX-BIO

28h 52m2 stops

9:15 am - 9:15 pmBIO-PDX

21h 00m2 stops

$2,953American Airlines

Find Deal

Sun, Oct 26 - Mon, Nov 24

11:58 pm - 12:50 pmPDX-BIO

28h 52m2 stops

1:35 pm - 10:52 pmBIO-PDX

42h 17m2 stops

$2,963American Airlines

Find Deal

Sun, Oct 26 - Sun, Nov 23

Air Canada flights from Portland to Bilbao

Our best Air Canada deals on Portland to Bilbao flight tickets

Air Canada

Aug 30

PDX3:25 pmPortland

42h 00m

2 stops

BIO6:25 pmBilbao

Dec 24

BIO12:50 pmBilbao

53h 25m

2 stops

PDX9:15 amPortland

$1,347

Find similar

Air Canada

Aug 30

PDX6:15 amPortland

26h 35m

2 stops

BIO5:50 pmBilbao

Dec 24

BIO7:25 amBilbao

34h 50m

3 stops

PDX9:15 amPortland

$1,455

Find similar

Air Canada

Oct 27

PDX9:50 amPortland

22h 50m

3 stops

BIO4:40 pmBilbao

Nov 24

BIO6:45 amBilbao

20h 45m

2 stops

PDX6:30 pmPortland

$2,989

Find similar

KLM flights from Portland to Bilbao

Our best KLM deals on Portland to Bilbao flight tickets

KLM

Oct 5

PDX12:55 pmPortland

18h 35m

1 stop

BIO4:30 pmBilbao

Oct 12

BIO6:50 amBilbao

13h 10m

1 stop

PDX11:00 amPortland

$774

Find similar

KLM

Oct 3

PDX1:05 pmPortland

24h 40m

1 stop

BIO10:45 pmBilbao

Oct 13

BIO6:50 amBilbao

13h 30m

1 stop

PDX11:20 amPortland

$951

Find similar

KLM

Aug 30

PDX1:15 pmPortland

24h 30m

1 stop

BIO10:45 pmBilbao

Dec 24

BIO6:50 amBilbao

13h 35m

1 stop

PDX11:25 amPortland

$1,448

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 2/10

11:07 am-4:40 pm

2 stops20h 33m

Bilbao

Mon 2/16

11:35 am-12:19 am

3 stops45h 44m

$623

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sun 10/5

3:25 pm-8:15 pm

2 stops43h 50m

Bilbao

Sun 10/12

7:05 pm-11:01 pm

2 stops36h 56m

$634

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 10/3

2:15 pm-6:25 pm

2 stops19h 10m

Bilbao

Mon 10/13

7:10 pm-11:01 pm

2 stops36h 51m

$658

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sun 10/5

1:40 pm-4:40 pm

2 stops18h 00m

Bilbao

Sun 10/12

6:50 am-11:00 am

1 stop13h 10m

$684

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sun 10/5

12:55 pm-4:30 pm

1 stop18h 35m

Bilbao

Sun 10/12

6:50 am-11:00 am

1 stop13h 10m

$774

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 10/3

7:15 am-10:25 am

2 stops18h 10m

Bilbao

Mon 10/13

6:50 am-11:20 am

1 stop13h 30m

$803

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 10/3

1:05 pm-10:45 pm

1 stop24h 40m

Bilbao

Mon 10/13

6:50 am-11:20 am

1 stop13h 30m

$951

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Mon 10/27

3:54 pm-11:05 pm

2 stops23h 11m

Bilbao

Mon 11/24

6:45 am-8:38 pm

2 stops22h 53m

$2,776

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sun 10/26

11:58 pm-12:50 pm

2 stops28h 52m

Bilbao

Mon 11/24

9:15 am-9:15 pm

2 stops21h 00m

$2,953

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sun 10/26

11:58 pm-12:50 pm

2 stops28h 52m

Bilbao

Sun 11/23

1:35 pm-10:52 pm

2 stops42h 17m

$2,963

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Portland to Bilbao is on a Tuesday. Travelers who choose to depart for Bilbao on a Tuesday will often find tickets for as low as $952. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,705. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the afternoon. Flights from Portland to Bilbao during this time can be as low as $1,226. At noon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,254 per ticket.

When to book flights from Portland to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Bilbao according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Bilbao (PDX to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Bilbao

Direct flights	None

There are no direct flights from Portland to Bilbao. There are no popular flight routes from Portland to Bilbao.

Search flight deals

How far is Portland to Bilbao by plane?
There are 5272.0 mi between Portland and Bilbao. In terms of flight time, this usually takes a little over 12h 55m.
When did momondo last update prices for flights from Portland Airport to Bilbao Airport?
Prices for flights from Portland Airport to Bilbao Airport are updated daily.
How many operators does momondo search for flights from Portland Airport to Bilbao Airport?
The number of operators available for flights from Portland Airport to Bilbao Airport is 2 as of August 2025.
How old do you have to be to fly from Portland Airport to Bilbao Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland to Bilbao?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Bilbao is Delta (66% of total bookings). The next most popular airline is KLM (34%).

Best airlines flying from Portland to Bilbao

Compare and see reviews for airlines that fly from Portland to Bilbao with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $633	Free Cancellation	Rating 7.9 7,981 reviews		Search Delta flights
KLM	PriceFrom $814	Free Cancellation	Rating 7.8 1,388 reviews		Search KLM flights

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Why use momondo?

Why should I use momondo to find a flight deal from Portland to Bilbao?

It is quick and easy to find Portland to Bilbao flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bilbao that suits you.

Can I find flights from Portland to Bilbao with flexible booking policies on momondo?

Yes. All flights to Bilbao from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Bilbao?

momondo helps you find the best flight between Portland and Bilbao by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Bilbao right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bilbao, momondo offers a useful price alert feature which will track prices for flights to Bilbao from Portland and alert you when they change.