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Cheap flights from Portland to Bilbao from $372

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bilbao departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 11:20 pmPDX-BIO
31h 20m2 stops
United Airlines Logo
6:45 am - 12:37 amBIO-PDX
26h 52m3 stops
$532United Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
Air Canada Logo
3:15 pm - 6:05 pmPDX-BIO
41h 50m2 stops
Air Canada Logo
11:35 am - 9:15 amBIO-PDX
53h 40m2 stops
$622Air Canada
Find Deal
Sat, Mar 7 - Sat, Mar 14
Multiple Airlines Logo
1:25 pm - 4:10 pmPDX-BIO
41h 45m3 stops
Multiple Airlines Logo
11:35 am - 9:15 amBIO-PDX
53h 40m2 stops
$645Multiple Airlines
Find Deal
Sat, Mar 7 - Sat, Mar 14
KLM Logo
7:00 am - 11:20 amPDX-BIO
19h 20m2 stops
KLM Logo
5:20 pm - 12:25 pmBIO-PDX
27h 05m1 stop
$945KLM
Find Deal
Sat, Mar 7 - Sat, Mar 14
Air Canada Logo
9:50 am - 4:40 pmPDX-BIO
21h 50m3 stops
Air Canada Logo
6:45 am - 9:15 amBIO-PDX
34h 30m3 stops
$947Air Canada
Find Deal
Sat, Mar 7 - Sat, Mar 14
Multiple Airlines Logo
7:00 pm - 4:40 pmPDX-BIO
36h 40m2 stops
Multiple Airlines Logo
7:25 am - 9:15 amBIO-PDX
34h 50m2 stops
$1,188Multiple Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
Delta Logo
7:00 am - 11:30 amPDX-BIO
20h 30m2 stops
Delta Logo
11:55 am - 12:25 pmBIO-PDX
32h 30m1 stop
$1,244Delta
Find Deal
Tue, Mar 10 - Thu, Mar 12
Delta Logo
7:00 am - 11:30 amPDX-BIO
20h 30m2 stops
Delta Logo
11:55 am - 10:46 pmBIO-PDX
18h 51m2 stops
$1,254Delta
Find Deal
Tue, Mar 10 - Thu, Mar 12
KLM Logo
11:10 am - 11:30 amPDX-BIO
16h 20m2 stops
KLM Logo
5:20 pm - 12:25 pmBIO-PDX
27h 05m1 stop
$1,296KLM
Find Deal
Tue, Mar 10 - Thu, Mar 12
American Airlines Logo
12:59 am - 12:50 pmPDX-BIO
26h 51m2 stops
American Airlines Logo
9:15 am - 10:59 pmBIO-PDX
22h 44m2 stops
$5,634American Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 30

United Airlines flights from Portland to Bilbao

Our best United Airlines deals on Portland to Bilbao flight tickets
United Airlines
Nov 28
PDX7:00 amPortland
31h 20m
2 stops
BIO11:20 pmBilbao
Dec 5
BIO6:45 amBilbao
26h 52m
3 stops
PDX12:37 amPortland
$532
Find similar
United Airlines
Oct 24
PDX5:00 amPortland
27h 50m
2 stops
BIO5:50 pmBilbao
Nov 8
BIO11:35 amBilbao
36h 11m
2 stops
PDX2:46 pmPortland
$1,883
Find similar
United Airlines
Oct 24
PDX5:00 amPortland
27h 50m
2 stops
BIO5:50 pmBilbao
Nov 8
BIO7:25 amBilbao
26h 21m
2 stops
PDX12:46 amPortland
$2,475
Find similar

Air Canada flights from Portland to Bilbao

Our best Air Canada deals on Portland to Bilbao flight tickets
Air Canada
Mar 7
PDX3:15 pmPortland
41h 50m
2 stops
BIO6:05 pmBilbao
Mar 14
BIO11:35 amBilbao
53h 40m
2 stops
PDX9:15 amPortland
$622
Find similar
Air Canada
Mar 7
PDX9:50 amPortland
21h 50m
3 stops
BIO4:40 pmBilbao
Mar 14
BIO6:45 amBilbao
34h 30m
3 stops
PDX9:15 amPortland
$947
Find similar
Air Canada
Nov 21
PDX7:00 pmPortland
36h 40m
2 stops
BIO4:40 pmBilbao
Nov 30
BIO6:45 amBilbao
35h 30m
3 stops
PDX9:15 amPortland
$1,186
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Portland to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 11/28

7:00 am-11:20 pm

2 stops31h 20m

Bilbao

Fri 12/5

6:45 am-12:37 am

3 stops26h 52m

$532

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 3/7

3:15 pm-6:05 pm

2 stops41h 50m

Bilbao

Sat 3/14

11:35 am-9:15 am

2 stops53h 40m

$622

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 3/7

1:25 pm-4:10 pm

3 stops41h 45m

Bilbao

Sat 3/14

11:35 am-9:15 am

2 stops53h 40m

$645

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 3/7

7:00 am-11:20 am

2 stops19h 20m

Bilbao

Sat 3/14

5:20 pm-12:25 pm

1 stop27h 05m

$945

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 3/7

9:50 am-4:40 pm

3 stops21h 50m

Bilbao

Sat 3/14

6:45 am-9:15 am

3 stops34h 30m

$947

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 11/21

7:00 pm-4:40 pm

2 stops36h 40m

Bilbao

Sun 11/30

7:25 am-9:15 am

2 stops34h 50m

$1,188

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 3/10

7:00 am-11:30 am

2 stops20h 30m

Bilbao

Thu 3/12

11:55 am-12:25 pm

1 stop32h 30m

$1,244

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 3/10

7:00 am-11:30 am

2 stops20h 30m

Bilbao

Thu 3/12

11:55 am-10:46 pm

2 stops18h 51m

$1,254

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 3/10

11:10 am-11:30 am

2 stops16h 20m

Bilbao

Thu 3/12

5:20 pm-12:25 pm

1 stop27h 05m

$1,296

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Thu 11/20

12:59 am-12:50 pm

2 stops26h 51m

Bilbao

Sun 11/30

9:15 am-10:59 pm

2 stops22h 44m

$5,634

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Bilbao from

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

What is the typical price of a round-trip flight between Portland and Bilbao?

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 16h 20m.

  • 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?

  • 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?

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
KLMPriceFrom $576Free CancellationRating
7.7
1,402 reviews
Search KLM flights
DeltaPriceFrom $678Free CancellationRating
7.9
7,972 reviews
Search Delta flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Getxo
Laredo
Lekeitio

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.

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