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Cheap flights from Portland to Bilbao from $257

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 8/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
8:40 am - 11:25 pm
PDX
-
BIO
29h 45m
2 stops
United Airlines Logo
6:50 am - 12:44 am
BIO
-
PDX
26h 54m
2 stops
$489United Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
8:00 am - 11:15 pm
PDX
-
BIO
30h 15m
2 stops
Multiple Airlines Logo
6:45 am - 10:42 pm
BIO
-
PDX
24h 57m
2 stops
$506Multiple Airlines
Wed, Apr 8 - Tue, Apr 21
Delta Logo
1:32 pm - 5:30 pm
PDX
-
BIO
18h 58m
2 stops
Delta Logo
6:45 am - 11:10 am
BIO
-
PDX
13h 25m
1 stop
$572Delta
Tue, Apr 21 - Tue, Apr 28
Delta Logo
1:32 pm - 5:30 pm
PDX
-
BIO
18h 58m
2 stops
Delta Logo
7:10 am - 6:52 pm
BIO
-
PDX
20h 42m
2 stops
$589Delta
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
7:00 am - 11:15 pm
PDX
-
BIO
31h 15m
2 stops
Multiple Airlines Logo
6:45 am - 10:42 pm
BIO
-
PDX
24h 57m
2 stops
$591Multiple Airlines
Wed, Apr 8 - Tue, Apr 21
Delta Logo
1:55 pm - 5:30 pm
PDX
-
BIO
18h 35m
2 stops
Delta Logo
6:45 am - 11:10 am
BIO
-
PDX
13h 25m
1 stop
$602Delta
Tue, Mar 31 - Tue, Apr 14
KLM Logo
1:05 pm - 11:15 am
PDX
-
BIO
13h 10m
1 stop
KLM Logo
6:45 am - 11:10 am
BIO
-
PDX
13h 25m
1 stop
$603KLM
Tue, Mar 31 - Tue, Apr 14
Multiple Airlines Logo
9:50 am - 5:10 pm
PDX
-
BIO
22h 20m
2 stops
Multiple Airlines Logo
7:15 am - 10:29 pm
BIO
-
PDX
24h 14m
3 stops
$607Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Delta Logo
1:55 pm - 5:30 pm
PDX
-
BIO
18h 35m
2 stops
Delta Logo
6:45 am - 6:52 pm
BIO
-
PDX
21h 07m
2 stops
$612Delta
Tue, Mar 31 - Tue, Apr 14
Multiple Airlines Logo
1:05 pm - 10:45 pm
PDX
-
BIO
24h 40m
1 stop
Multiple Airlines Logo
7:10 am - 2:53 pm
BIO
-
PDX
16h 43m
2 stops
$650Multiple Airlines
Tue, Apr 21 - Tue, Apr 28

Iberia flights from Portland to Bilbao

Our best Iberia deals on Portland to Bilbao flight tickets
Iberia
Feb 28
PDX2:10 pmPortland
33h 20m
2 stops
BIO8:30 amBilbao
Mar 7
BIO1:35 pmBilbao
35h 20m
2 stops
PDX3:55 pmPortland
$768
Iberia
Feb 28
PDX2:10 pmPortland
37h 40m
2 stops
BIO12:50 pmBilbao
Mar 7
BIO1:50 pmBilbao
35h 05m
1 stop
PDX3:55 pmPortland
$852
Iberia
Jun 12
PDX5:15 amPortland
42h 15m
2 stops
BIO8:30 amBilbao
Jun 19
BIO6:45 amBilbao
19h 55m
2 stops
PDX5:40 pmPortland
$966

United Airlines flights from Portland to Bilbao

Our best United Airlines deals on Portland to Bilbao flight tickets
United Airlines
Apr 21
PDX8:40 amPortland
29h 45m
2 stops
BIO11:25 pmBilbao
Apr 28
BIO6:50 amBilbao
26h 54m
2 stops
PDX12:44 amPortland
$489
United Airlines
Feb 27
PDX1:40 pmPortland
24h 40m
2 stops
BIO11:20 pmBilbao
Mar 3
BIO6:45 amBilbao
21h 10m
2 stops
PDX6:55 pmPortland
$936
United Airlines
Feb 27
PDX1:18 pmPortland
25h 02m
3 stops
BIO11:20 pmBilbao
Mar 6
BIO6:45 amBilbao
25h 19m
2 stops
PDX11:04 pmPortland
$948

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 February 22, 2026.
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

Tue 4/21

8:40 am-11:25 pm

2 stops29h 45m

Bilbao

Tue 4/28

6:50 am-12:44 am

2 stops26h 54m

$489

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 4/8

8:00 am-11:15 pm

2 stops30h 15m

Bilbao

Tue 4/21

6:45 am-10:42 pm

2 stops24h 57m

$506

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 4/21

1:32 pm-5:30 pm

2 stops18h 58m

Bilbao

Tue 4/28

6:45 am-11:10 am

1 stop13h 25m

$572

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 4/21

1:32 pm-5:30 pm

2 stops18h 58m

Bilbao

Tue 4/28

7:10 am-6:52 pm

2 stops20h 42m

$589

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 4/8

7:00 am-11:15 pm

2 stops31h 15m

Bilbao

Tue 4/21

6:45 am-10:42 pm

2 stops24h 57m

$591

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 3/31

1:55 pm-5:30 pm

2 stops18h 35m

Bilbao

Tue 4/14

6:45 am-11:10 am

1 stop13h 25m

$602

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 3/31

1:05 pm-11:15 am

1 stop13h 10m

Bilbao

Tue 4/14

6:45 am-11:10 am

1 stop13h 25m

$603

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 4/21

9:50 am-5:10 pm

2 stops22h 20m

Bilbao

Tue 4/28

7:15 am-10:29 pm

3 stops24h 14m

$607

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 3/31

1:55 pm-5:30 pm

2 stops18h 35m

Bilbao

Tue 4/14

6:45 am-6:52 pm

2 stops21h 07m

$612

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 4/21

1:05 pm-10:45 pm

1 stop24h 40m

Bilbao

Tue 4/28

7:10 am-2:53 pm

2 stops16h 43m

$650

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest airline that flies from Portland to Bilbao?

United Airlines, British Airways, and KLM are the most popular carriers operating from Portland to Bilbao

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

Fastest flight time

18h 35m

Direct flights

None
The fastest flight from Portland to Bilbao takes 18h 35m
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 18h 35m.

  • 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
DeltaPriceFrom $469Free CancellationRating
7.9
8,240 reviews
Search Delta flights
KLMPriceFrom $476Free CancellationRating
7.7
1,457 reviews
Search KLM 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.

An easier way to manage your Bilbao trip

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