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Cheap flights from Portland to Bilbao from $315

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 11/17. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:45 pm - 11:05 pm
PDX
-
BIO
43h 20m
2 stops
Multiple Airlines Logo
6:45 am - 10:26 am
BIO
-
PDX
35h 41m
3 stops
$782Multiple Airlines
Sat, Oct 24 - Sat, Oct 31
United Airlines Logo
11:59 pm - 11:05 pm
PDX
-
BIO
39h 06m
2 stops
United Airlines Logo
6:45 am - 9:08 pm
BIO
-
PDX
22h 23m
2 stops
$797United Airlines
Sat, Oct 24 - Sat, Oct 31
Delta Logo
10:35 pm - 5:30 pm
PDX
-
BIO
33h 55m
2 stops
Delta Logo
6:45 am - 11:10 am
BIO
-
PDX
13h 25m
1 stop
$825Delta
Sat, Sep 5 - Fri, Sep 18
Delta Logo
12:45 pm - 9:50 am
PDX
-
BIO
36h 05m
2 stops
Delta Logo
12:00 pm - 11:10 am
BIO
-
PDX
32h 10m
1 stop
$827Delta
Wed, Sep 9 - Tue, Sep 15
United Airlines Logo
11:02 pm - 10:45 am
PDX
-
BIO
26h 43m
2 stops
United Airlines Logo
7:25 am - 6:25 pm
BIO
-
PDX
20h 00m
2 stops
$831United Airlines
Mon, Aug 31 - Wed, Dec 23
United Airlines Logo
7:00 am - 11:25 pm
PDX
-
BIO
31h 25m
2 stops
United Airlines Logo
6:50 am - 9:29 am
BIO
-
PDX
35h 39m
2 stops
$832United Airlines
Tue, Sep 1 - Tue, Sep 8
Delta Logo
12:45 pm - 4:30 pm
PDX
-
BIO
18h 45m
2 stops
Delta Logo
12:00 pm - 10:02 pm
BIO
-
PDX
19h 02m
2 stops
$840Delta
Tue, Sep 8 - Thu, Sep 17
Lufthansa Logo
2:27 pm - 10:25 pm
PDX
-
BIO
22h 58m
2 stops
Lufthansa Logo
6:50 am - 7:11 pm
BIO
-
PDX
21h 21m
2 stops
$844Lufthansa
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
12:45 pm - 4:30 pm
PDX
-
BIO
18h 45m
2 stops
Multiple Airlines Logo
7:10 am - 6:59 pm
BIO
-
PDX
20h 49m
2 stops
$847Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
7:02 am - 10:25 am
PDX
-
BIO
18h 23m
2 stops
United Airlines Logo
6:50 am - 10:53 pm
BIO
-
PDX
25h 03m
3 stops
$850United Airlines
Mon, Sep 7 - Wed, Sep 16

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United Airlines flights from Portland to Bilbao

Our best United Airlines deals on Portland to Bilbao flight tickets
United Airlines
Oct 24
PDX11:59 pmPortland
39h 06m
2 stops
BIO11:05 pmBilbao
Oct 31
BIO6:45 amBilbao
22h 23m
2 stops
PDX9:08 pmPortland
$797
United Airlines
Sep 9
PDX9:00 amPortland
29h 25m
2 stops
BIO11:25 pmBilbao
Sep 15
BIO6:50 amBilbao
35h 41m
2 stops
PDX9:31 amPortland
$827
United Airlines
Aug 31
PDX11:02 pmPortland
26h 43m
2 stops
BIO10:45 amBilbao
Dec 23
BIO7:25 amBilbao
20h 00m
2 stops
PDX6:25 pmPortland
$831

Delta flights from Portland to Bilbao

Our best Delta deals on Portland to Bilbao flight tickets
Delta
Sep 5
PDX10:35 pmPortland
33h 55m
2 stops
BIO5:30 pmBilbao
Sep 17
BIO6:45 amBilbao
13h 25m
1 stop
PDX11:10 amPortland
$825
Delta
Sep 8
PDX12:45 pmPortland
18h 45m
2 stops
BIO4:30 pmBilbao
Sep 17
BIO12:00 pmBilbao
19h 02m
2 stops
PDX10:02 pmPortland
$840
Delta
Sep 10
PDX10:00 pmPortland
26h 50m
2 stops
BIO9:50 amBilbao
Sep 15
BIO12:00 pmBilbao
32h 10m
1 stop
PDX11:10 amPortland
$885

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 July 23, 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

Cheapest round-trip

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 10/24

7:45 pm-11:05 pm

2 stops43h 20m

Bilbao

Sat 10/31

6:45 am-10:26 am

3 stops35h 41m

$782

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 10/24

11:59 pm-11:05 pm

2 stops39h 06m

Bilbao

Sat 10/31

6:45 am-9:08 pm

2 stops22h 23m

$797

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 9/5

10:35 pm-5:30 pm

2 stops33h 55m

Bilbao

Fri 9/18

6:45 am-11:10 am

1 stop13h 25m

$825

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 9/9

12:45 pm-9:50 am

2 stops36h 05m

Bilbao

Tue 9/15

12:00 pm-11:10 am

1 stop32h 10m

$827

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Mon 8/31

11:02 pm-10:45 am

2 stops26h 43m

Bilbao

Wed 12/23

7:25 am-6:25 pm

2 stops20h 00m

$831

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 9/1

7:00 am-11:25 pm

2 stops31h 25m

Bilbao

Tue 9/8

6:50 am-9:29 am

2 stops35h 39m

$832
Quickest round-trip

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 9/8

12:45 pm-4:30 pm

2 stops18h 45m

Bilbao

Thu 9/17

12:00 pm-10:02 pm

2 stops19h 02m

$840

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 9/9

2:27 pm-10:25 pm

2 stops22h 58m

Bilbao

Wed 9/16

6:50 am-7:11 pm

2 stops21h 21m

$844

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Tue 9/8

12:45 pm-4:30 pm

2 stops18h 45m

Bilbao

Tue 9/15

7:10 am-6:59 pm

2 stops20h 49m

$847

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Mon 9/7

7:02 am-10:25 am

2 stops18h 23m

Bilbao

Wed 9/16

6:50 am-10:53 pm

3 stops25h 03m

$850

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 month to fly to Bilbao?

The cheapest month to fly to Bilbao from Portland is in December. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in December, then January is your next best option. Flight prices from Portland to Bilbao during January average around $0.

Can stopping save me money on Portland to Bilbao flights?

You could potentially save up to 10% on your flight if you consider stops on a Portland to Bilbao flight.

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

19h 45m

Direct flights

None
The fastest flight from Portland to Bilbao takes 19h 45m
There are no direct flights from Portland to Bilbao. There are no popular flight routes from Portland to Bilbao.
Search flight deals

Frequently asked questions about flying from Portland to Bilbao

  • 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 19h 45m.

  • 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 $476Free CancellationRating
7.8
1,544 reviews
Search KLM flights
DeltaPriceFrom $633Free CancellationRating
7.8
8,479 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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