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Bilbao

$356+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BIO
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap 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 julio 30, 2025.

Round-trip from

$671
(Air Canada)

One-way from

$356
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$1,251
From Portland to Bilbao
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One-way flight from Portland to Bilbao
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Highest demand for flights based on searches. 20% potential increase in price ($259 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 julio 30, 2025.

This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/13:15 pmPDX - BIO
2 stops42h 50mAir Canada
jue. 11/136:30 amBIO - PDX
2 stops35h 45mAir Canada
Deal found 7/27$591
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/111:59 pmPDX - BIO
2 stops32h 11mUnited Airlines
mar. 11/1811:35 amBIO - PDX
3 stops32h 18mUnited Airlines
Deal found 7/27$667
This Lufthansa deal was found by Cheapflights users on 7/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/148:30 amPDX - BIO
2 stops29h 55mLufthansa
mié. 10/226:45 amBIO - PDX
2 stops25h 16mLufthansa
Deal found 7/30$675
This KLM deal was found by Cheapflights users on 7/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/131:15 pmPDX - BIO
1 stop18h 15mKLM
mié. 10/227:10 amBIO - PDX
2 stops17h 55mKLM
Deal found 7/27$862
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/131:15 pmPDX - BIO
1 stop13h 00mDelta
vie. 10/246:50 amBIO - PDX
1 stop13h 15mDelta
Deal found 7/27$866

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 julio 30, 2025.
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

dom. 9/7

7:40 pm-5:50 pm

2 stops37h 10m

Bilbao

jue. 10/23

6:45 am-9:20 am

2 stops35h 35m

$671

PortlandBilbao

PDX - BIO

PDXBIO

Portland

dom. 9/14

8:30 am-11:25 pm

2 stops29h 55m

Bilbao

mié. 10/22

6:45 am-11:01 pm

2 stops25h 16m

$675

PortlandBilbao

PDX - BIO

PDXBIO

Portland

mié. 9/10

8:30 am-6:20 pm

2 stops24h 50m

Bilbao

mar. 10/21

6:45 am-11:01 pm

2 stops25h 16m

$679

PortlandBilbao

PDX - BIO

PDXBIO

Portland

sáb. 9/13

1:15 pm-4:30 pm

1 stop18h 15m

Bilbao

mié. 10/22

7:10 am-4:05 pm

2 stops17h 55m

$862

PortlandBilbao

PDX - BIO

PDXBIO

Portland

sáb. 9/13

1:15 pm-11:15 am

1 stop13h 00m

Bilbao

vie. 10/24

6:50 am-11:05 am

1 stop13h 15m

$866

PortlandBilbao

PDX - BIO

PDXBIO

Portland

mar. 9/9

1:51 pm-4:40 pm

2 stops17h 49m

Bilbao

mié. 10/22

6:50 am-11:20 am

1 stop13h 30m

$904

PortlandBilbao

PDX - BIO

PDXBIO

Portland

mar. 9/9

10:30 am-2:10 pm

3 stops42h 40m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Bilbao

What is the cheapest time of day to fly from PDX to BIO?

Find hourly flight availability from Portland to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

When flying from Portland to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 3% versus a flight at noon.

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 julio 30, 2025.
See what other customers who have flown with Delta, KLM, and United Airlines 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
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,837 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,269 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Flying on Air Canada is currently your cheapest option to Bilbao, with prices starting at $671. Additional round-trip tickets that might be worth considering are offered by Lufthansa and United Airlines, with the lowest prices starting at $675 and $685, respectively. Users have found that Air Canada is 34% 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.

  • What is the cheapest month to book a flight from Portland to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Portland to Bilbao (average of $541). Flying from Portland to Bilbao in June is currently the most expensive (average of $1,135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$678Average$916FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$814Average$1,080FlexibilityNo cancel feeOn-time75%

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