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Bilbao

$365+ Cheap flights from Portland (PDX) to Bilbao (BIO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BIO
fev 27 — mar 61
sex 2/27
sex 3/6
1 adult, Economy
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Cheap flight deals from Portland to Bilbao

Cheapest flights from Portland to Bilbao
Explore the most affordable flight options available from Portland to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.

This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 2/235:45 am
PDX
-
BIO
2 stops26h 35m
Delta
dom 3/111:55 am
BIO
-
PDX
1 stop32h 30m
Delta
Deal found 1/26$477
This Rumbo deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 2/233:50 pm
PDX
-
BIO
2 stops22h 15m
Lufthansa
dom 3/16:45 am
BIO
-
PDX
2 stops21h 10m
Lufthansa
Deal found 1/26$479
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 2/273:50 pm
PDX
-
BIO
2 stops22h 30m
United Airlines
ter 3/36:45 am
BIO
-
PDX
2 stops41h 03m
United Airlines
Deal found 1/25$488
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 3/188:30 am
PDX
-
BIO
2 stops29h 25m
United Airlines
qua 3/257:25 am
BIO
-
PDX
2 stops23h 39m
United Airlines
Deal found 1/26$489
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/89:50 am
PDX
-
BIO
2 stops22h 25m
Multiple Airlines
ter 4/216:50 am
BIO
-
PDX
2 stops26h 54m
Multiple Airlines
Deal found 1/27$496
This Cheapflightsfares deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 10/1910:10 am
PDX
-
BIO
2 stops28h 15m
Lufthansa
sex 10/306:45 am
BIO
-
PDX
2 stops26h 09m
Lufthansa
Deal found 1/27$499
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 10/196:15 am
PDX
-
BIO
2 stops26h 40m
Air Canada
sex 10/306:45 am
BIO
-
PDX
3 stops23h 23m
Air Canada
Deal found 1/27$527
This Cheapflightsfares deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 5/191:37 pm
PDX
-
BIO
2 stops24h 48m
Lufthansa
ter 5/267:15 am
BIO
-
PDX
2 stops26h 36m
Lufthansa
Deal found 1/27$559

Find flight deals from Portland to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janeiro 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$477
(Delta)

One-way from

$365
(United Airlines)

Popular in

May

Cheapest in

November
Provider with most accurate pricing for Portland-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Bilbao flights.
Search Deals
From Portland to Bilbao
Search Deals
One-way flight from Portland to Bilbao
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($324 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated janeiro 28, 2026.
Use the filters below to find and compare flights from Portland to Bilbao that are best for you.

Fly from

Portland

Fly to

Bilbao

Route

Depart

Return

Price

PortlandBilbao

PDX - BIO

PDXBIO

Portland

seg 2/23

5:45 am-5:20 pm

2 stops26h 35m

Bilbao

dom 3/1

11:55 am-11:25 am

1 stop32h 30m

$477

PortlandBilbao

PDX - BIO

PDXBIO

Portland

seg 2/23

3:50 pm-11:05 pm

2 stops22h 15m

Bilbao

dom 3/1

6:45 am-6:55 pm

2 stops21h 10m

$479

PortlandBilbao

PDX - BIO

PDXBIO

Portland

sex 2/27

3:50 pm-11:20 pm

2 stops22h 30m

Bilbao

ter 3/3

6:45 am-2:48 pm

2 stops41h 03m

$488

PortlandBilbao

PDX - BIO

PDXBIO

Portland

qua 3/18

8:30 am-9:55 pm

2 stops29h 25m

Bilbao

qua 3/25

7:25 am-11:04 pm

2 stops23h 39m

$489

PortlandBilbao

PDX - BIO

PDXBIO

Portland

ter 5/19

1:37 pm-11:25 pm

2 stops24h 48m

Bilbao

ter 5/26

7:15 am-12:51 am

2 stops26h 36m

$559

PortlandBilbao

PDX - BIO

PDXBIO

Portland

seg 6/8

8:35 am-11:25 pm

2 stops29h 50m

$365

PortlandBilbao

PDX - BIO

PDXBIO

Portland

seg 6/8

10:10 am-9:35 pm

3 stops26h 25m

$457

PortlandBilbao

PDX - BIO

PDXBIO

Portland

seg 6/8

1:05 pm-11:15 am

1 stop13h 10m

$798

PortlandBilbao

PDX - BIO

PDXBIO

Portland

sáb 4/18

3:30 pm-12:30 pm

2 stops36h 00m

$1,444

PortlandBilbao

PDX - BIO

PDXBIO

Portland

sáb 4/18

1:05 pm-11:15 am

1 stop13h 10m

$8,115

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

  • Most accurate provider: When it comes to deals on Portland-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Bilbao flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bilbao. Reviews last updated janeiro 28, 2026.
See what other customers who have flown with Delta and KLM from Portland to Bilbao have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,124 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,124 reviews
Delta
7.9
Good
8,124 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,443 reviews
Delta
7.9
Good
8,124 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portland to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Bilbao?

    For as low as $479, Delta can have you in Bilbao from Portland in 22h 15m. Airlines will cover a distance of 5265 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Portland to Bilbao round-trip?

    Flying on KLM is currently your cheapest option to Bilbao, with prices starting at $476. Another option worth looking into is Delta, starting at $633 round trip. Users have found that KLM is 45% cheaper than the other options available to this destination.

  • Can I find deals for flights from Portland to Bilbao that include hotel bookings?

    Yes. In addition to deals on Portland to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Bilbao?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Bilbao.

  • Can I find deals for business class flights from Portland to Bilbao?

    Yes. Cheapflights offers flight deals from Portland to Bilbao by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Portland to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Bilbao flights

Top 2 airlines flying from Portland to Bilbao

Discover the top 2 airlines that operate flights from Portland to Bilbao. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated janeiro 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$476Average$814FlexibilityNo cancel feeOn-time75%
DeltaCheapest$633Average$965FlexibilityNo cancel feeOn-timeN/A

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