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Flights from Portland to Bilbao

Find flight deals from Portland to Bilbao for the next 3 months. Book one way flights from $728 or round trip flights from $1,038.

      • PDX 1:05 PM
        13h 10m
        1 stop
        BIO 11:15 AM
        Portland - Bilbao | Fri, May 22 | KLM
        BIO 6:45 AM
        13h 25m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Fri, May 29 | KLM
        $1,038 $1,322
        21% off
        21% off
        $1,322 $1,038
      • PDX 1:05 PM
        24h 40m
        1 stop
        BIO 10:45 PM
        Portland - Bilbao | Wed, May 20 | KLM
        BIO 6:45 AM
        13h 25m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Wed, May 27 | KLM
        $1,099 $1,322
        17% off
        17% off
        $1,322 $1,099
      • PDX 1:05 PM
        24h 40m
        1 stop
        BIO 10:45 PM
        Portland - Bilbao | Thu, May 21 | KLM
        BIO 12:00 PM
        32h 10m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Thu, May 28 | KLM
        $1,127 $1,322
        15% off
        15% off
        $1,322 $1,127
      • PDX 1:05 PM
        18h 25m
        1 stop
        BIO 4:30 PM
        Portland - Bilbao | Wed, Jun 10 | KLM
        BIO 6:45 AM
        13h 25m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Wed, Jun 17 | KLM
        $1,133
        14% off
        $1,322 $1,133
      • PDX 1:05 PM
        18h 25m
        1 stop
        BIO 4:30 PM
        Portland - Bilbao | Mon, Jun 8 | KLM
        BIO 6:45 AM
        13h 25m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Mon, Jun 15 | KLM
        $1,143
        14% off
        $1,322 $1,143
      • PDX 1:05 PM
        18h 25m
        1 stop
        BIO 4:30 PM
        Portland - Bilbao | Sun, May 24 | KLM
        BIO 6:45 AM
        13h 25m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Sun, May 31 | KLM
        $1,155
        13% off
        $1,322 $1,155
      • PDX 1:05 PM
        24h 40m
        1 stop
        BIO 10:45 PM
        Portland - Bilbao | Thu, Jun 11 | KLM
        BIO 12:00 PM
        32h 10m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Thu, Jun 18 | KLM
        $1,165
        12% off
        $1,322 $1,165
      • PDX 1:05 PM
        13h 10m
        1 stop
        BIO 11:15 AM
        Portland - Bilbao | Fri, Jun 12 | KLM
        BIO 5:15 PM
        26h 55m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Fri, Jun 19 | KLM
        $1,165
        12% off
        $1,322 $1,165
      • PDX 1:05 PM
        18h 25m
        1 stop
        BIO 4:30 PM
        Portland - Bilbao | Thu, Jun 4 | KLM
        BIO 5:15 PM
        26h 55m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Thu, Jun 11 | KLM
        $1,203
        9% off
        $1,322 $1,203
      • PDX 1:05 PM
        13h 10m
        1 stop
        BIO 11:15 AM
        Portland - Bilbao | Fri, Jun 5 | KLM
        BIO 5:15 PM
        26h 55m
        1 stop
        PDX 11:10 AM
        Bilbao - Portland | Fri, Jun 12 | KLM
        $1,203
        9% off
        $1,322 $1,203
      • PDX 1:00 PM
        17h 25m
        1 stop
        BIO 2:00 PM
        Portland - Bilbao | Wed, May 20 | Normal Airline
        BIO 3:00 PM
        6h
        Nonstop
        PDX 4:00 PM
        Bilbao - Portland | Fri, May 22 | Normal Airline
        Find more flights
        Find more flights
      • PDX 10:52 PM
        26h 53m
        1 stop
        BIO 10:45 AM
        Portland - Bilbao | Sat, Jul 4 | United Airlines
        $728 $1,237
        41% off
        41% off
        $1,237 $728
      • PDX 10:33 AM
        15h 12m
        1 stop
        BIO 10:45 AM
        Portland - Bilbao | Sun, Jul 5 | United Airlines
        $799 $1,237
        35% off
        35% off
        $1,237 $799
      • PDX 1:05 PM
        18h 25m
        1 stop
        BIO 4:30 PM
        Portland - Bilbao | Thu, Jun 18 | Delta Air Lines
        $947 $1,237
        23% off
        23% off
        $1,237 $947
      • PDX 10:33 AM
        15h 12m
        1 stop
        BIO 10:45 AM
        Portland - Bilbao | Fri, Jun 19 | United Airlines
        $947
        23% off
        $1,237 $947
      • PDX 1:05 PM
        24h 40m
        1 stop
        BIO 10:45 PM
        Portland - Bilbao | Thu, Jun 18 | KLM
        $962
        22% off
        $1,237 $962
      • PDX 1:05 PM
        13h 10m
        1 stop
        BIO 11:15 AM
        Portland - Bilbao | Thu, Jul 2 | KLM
        $970
        22% off
        $1,237 $970
      • PDX 1:05 PM
        24h 40m
        1 stop
        BIO 10:45 PM
        Portland - Bilbao | Fri, Jun 19 | KLM
        $971
        22% off
        $1,237 $971
      • PDX 10:52 PM
        26h 53m
        1 stop
        BIO 10:45 AM
        Portland - Bilbao | Mon, Jun 29 | United Airlines
        $1,015
        18% off
        $1,237 $1,015
      • PDX 1:05 PM
        18h 25m
        1 stop
        BIO 4:30 PM
        Portland - Bilbao | Wed, Jul 1 | KLM
        $1,050
        15% off
        $1,237 $1,050
      • PDX 10:52 PM
        26h 53m
        1 stop
        BIO 10:45 AM
        Portland - Bilbao | Sat, Jun 27 | United Airlines
        $1,125
        9% off
        $1,237 $1,125
      • PDX 1:00 PM
        17h 25m
        1 stop
        BIO 2:00 PM
        Portland - Bilbao | Wed, May 20 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Portland to Bilbao are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Frequently Asked Questions

  • What are the cheapest flights from Portland to Bilbao (PDX-BIO)?

    Based on Trip.com data, United Airlines offers one-way fares as low as $728 on Cheapest nonstop routes (e.g. PDX to BIO on Sat, Jul 4), while KLM offers Cheapest nonstop round-trips from $1,038 departing on Fri, May 22 and returning on Fri, May 29.
  • At the moment, you can catch a nonstop flight from Portland to Bilbao with the following airlines, including: British Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Bilbao is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Portland to Bilbao, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Jul 4, with one-way flights priced at just $728.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Bilbao travel is around November.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Portland to Bilbao is October, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Portland to Bilbao on May 19, 2026 with KLM Royal Dutch Airlines, with prices starting at $1,038.
  • You can land at any one of the following hubs in Bilbao, with Portland International Airport to Bilbao Airport (PDX-BIO) is by far the most common option on this route: Bilbao Airport (BIO).
  • The time difference between Bilbao and Portland is 9h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.