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Cheap flights from Portland to Bilbao from $334

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 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Iberia Logo
7:30 pm - 11:00 pm
PDX
-
BIO
18h 30m
2 stops
Iberia Logo
1:35 pm - 12:43 pm
BIO
-
PDX
31h 08m
2 stops
$749Iberia
Wed, Oct 14 - Wed, Oct 28
American Airlines Logo
1:30 pm - 4:55 pm
PDX
-
BIO
18h 25m
2 stops
American Airlines Logo
9:35 pm - 12:43 pm
BIO
-
PDX
23h 08m
2 stops
$751American Airlines
Wed, Oct 14 - Wed, Oct 28
Multiple Airlines Logo
11:20 pm - 11:15 pm
PDX
-
BIO
38h 55m
2 stops
Multiple Airlines Logo
6:45 am - 10:50 pm
BIO
-
PDX
25h 05m
2 stops
$850Multiple Airlines
Fri, Sep 4 - Fri, Sep 18
United Airlines Logo
8:20 am - 11:25 pm
PDX
-
BIO
30h 05m
2 stops
United Airlines Logo
2:00 pm - 12:47 am
BIO
-
PDX
43h 47m
3 stops
$927United Airlines
Fri, Sep 4 - Fri, Sep 18
United Airlines Logo
8:20 am - 5:55 pm
PDX
-
BIO
24h 35m
2 stops
United Airlines Logo
12:30 pm - 10:03 pm
BIO
-
PDX
18h 33m
1 stop
$929United Airlines
Fri, Sep 4 - Fri, Sep 18
United Airlines Logo
10:50 pm - 10:45 am
PDX
-
BIO
26h 55m
1 stop
United Airlines Logo
12:30 pm - 10:03 pm
BIO
-
PDX
18h 33m
1 stop
$931United Airlines
Fri, Sep 4 - Fri, Sep 18
Lufthansa Logo
3:30 pm - 5:55 pm
PDX
-
BIO
17h 25m
2 stops
Lufthansa Logo
6:50 am - 7:11 pm
BIO
-
PDX
21h 21m
2 stops
$941Lufthansa
Wed, Jul 15 - Wed, Jul 29
United Airlines Logo
8:25 am - 11:15 am
PDX
-
BIO
17h 50m
2 stops
United Airlines Logo
6:45 am - 12:02 am
BIO
-
PDX
25h 17m
2 stops
$944United Airlines
Sat, Sep 26 - Mon, Oct 26
United Airlines Logo
12:45 pm - 10:50 pm
PDX
-
BIO
25h 05m
3 stops
United Airlines Logo
6:45 am - 12:02 am
BIO
-
PDX
25h 17m
2 stops
$956United Airlines
Sat, Sep 26 - Mon, Oct 26
United Airlines Logo
10:33 am - 10:45 am
PDX
-
BIO
15h 12m
1 stop
United Airlines Logo
11:00 am - 12:50 am
BIO
-
PDX
46h 50m
3 stops
$1,019United Airlines
Thu, Jul 9 - Tue, Jul 21

American Airlines flights from Portland to Bilbao

Our best American Airlines deals on Portland to Bilbao flight tickets
American Airlines
Oct 14
PDX1:30 pmPortland
18h 25m
2 stops
BIO4:55 pmBilbao
Oct 28
BIO9:35 pmBilbao
23h 08m
2 stops
PDX12:43 pmPortland
$751
American Airlines
Jun 30
PDX6:15 amPortland
21h 30m
2 stops
BIO12:45 pmBilbao
Jul 19
BIO1:30 pmBilbao
20h 25m
2 stops
PDX12:55 amPortland
$1,195

United Airlines flights from Portland to Bilbao

Our best United Airlines deals on Portland to Bilbao flight tickets
United Airlines
Sep 4
PDX8:20 amPortland
30h 05m
2 stops
BIO11:25 pmBilbao
Sep 18
BIO2:00 pmBilbao
43h 47m
3 stops
PDX12:47 amPortland
$927
United Airlines
Sep 4
PDX8:20 amPortland
24h 35m
2 stops
BIO5:55 pmBilbao
Sep 18
BIO12:30 pmBilbao
18h 33m
1 stop
PDX10:03 pmPortland
$929
United Airlines
Sep 4
PDX10:50 pmPortland
26h 55m
1 stop
BIO10:45 amBilbao
Sep 18
BIO12:30 pmBilbao
18h 33m
1 stop
PDX10:03 pmPortland
$931

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 May 6, 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

Wed 10/14

7:30 pm-11:00 pm

2 stops18h 30m

Bilbao

Wed 10/28

1:35 pm-12:43 pm

2 stops31h 08m

$749

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 10/14

1:30 pm-4:55 pm

2 stops18h 25m

Bilbao

Wed 10/28

9:35 pm-12:43 pm

2 stops23h 08m

$751

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 9/4

11:20 pm-11:15 pm

2 stops38h 55m

Bilbao

Fri 9/18

6:45 am-10:50 pm

2 stops25h 05m

$850

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 9/4

8:20 am-11:25 pm

2 stops30h 05m

Bilbao

Fri 9/18

2:00 pm-12:47 am

3 stops43h 47m

$927

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 9/4

8:20 am-5:55 pm

2 stops24h 35m

Bilbao

Fri 9/18

12:30 pm-10:03 pm

1 stop18h 33m

$929

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Fri 9/4

10:50 pm-10:45 am

1 stop26h 55m

Bilbao

Fri 9/18

12:30 pm-10:03 pm

1 stop18h 33m

$931
Quickest round-trip

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 7/15

3:30 pm-5:55 pm

2 stops17h 25m

Bilbao

Wed 7/29

6:50 am-7:11 pm

2 stops21h 21m

$941

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 9/26

8:25 am-11:15 am

2 stops17h 50m

Bilbao

Mon 10/26

6:45 am-12:02 am

2 stops25h 17m

$944

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 9/26

12:45 pm-10:50 pm

3 stops25h 05m

Bilbao

Mon 10/26

6:45 am-12:02 am

2 stops25h 17m

$956

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Thu 7/9

10:33 am-10:45 am

1 stop15h 12m

Bilbao

Tue 7/21

11:00 am-12:50 am

3 stops46h 50m

$1,019

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 cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Portland is in January. 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 January, then November is your next best option. Flight prices from Portland to Bilbao during November average around $508.

Can stopping save me money on Portland to Bilbao flights?

You could potentially save up to 22% 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

16h 00m

Direct flights

None
The fastest flight from Portland to Bilbao takes 16h 00m
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 16h 00m.

  • 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
8,460 reviews
Search Delta flights
KLMPriceFrom $476Free CancellationRating
7.8
1,511 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.

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