OPO - BIO

$42 Find Cheap Flights from Porto to Bilbao - Compare and Save

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Everything you should know

Cheapest round-trip
$74
Typical prices: $81-$156
Vueling
Mon 10/22Thu 10/25
OPO - BIO • Non-stop
Cheapest non-stop
$96
Typical prices: $66-$136
Volotea
Mon 11/5Mon 11/12
OPO - BIO • Non-stop
Nonstop flights
You can fly direct with Vueling and Volotea. Average duration is 1h 16m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 25 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $130 (round-trip)
Shortest trip • 3h 42m (one-way)
Insights
Insights
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We hope you love your trip to Bilbao!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Porto to Bilbao (OPO-BIO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to Bilbao

Thu, Oct 22 - Sun, Oct 25
Multiple Airlines Logo
8:40 pm - 10:55 pmOPO  Porto-BIO Bilbao
1h 15mnonstop
Multiple Airlines Logo
11:15 am - 6:50 pmBIO  Bilbao-OPO Porto
8h 35m1 stop Turin Citta Di Torino
$74Multiple Airlines
Thu, Oct 22 - Sun, Oct 25
Multiple Airlines Logo
8:40 pm - 10:55 pmOPO  Porto-BIO Bilbao
1h 15mnonstop
Multiple Airlines Logo
11:15 am - 6:50 pmBIO  Bilbao-OPO Porto
8h 35m1 stop Turin Citta Di Torino
$76Multiple Airlines
Sun, Dec 20 - Thu, Dec 24
Vueling Logo
2:35 pm - 8:20 amOPO  Porto-BIO Bilbao
16h 45m1 stop Barcelona-El Prat
Vueling Logo
7:20 pm - 7:40 pmBIO  Bilbao-OPO Porto
1h 20mnonstop
$81Vueling
Tue, Oct 20 - Thu, Oct 22
Vueling Logo
10:00 pm - 8:15 amOPO  Porto-BIO Bilbao
9h 15m1 stop Barcelona-El Prat
Vueling Logo
7:45 pm - 8:05 pmBIO  Bilbao-OPO Porto
1h 20mnonstop
$83Vueling
Tue, Oct 20 - Tue, Oct 27
Vueling Logo
10:00 pm - 8:15 amOPO  Porto-BIO Bilbao
9h 15m1 stop Barcelona-El Prat
Vueling Logo
7:50 pm - 8:10 pmBIO  Bilbao-OPO Porto
1h 20mnonstop
$88Vueling
Thu, Nov 5 - Thu, Nov 12
Volotea Logo
8:55 pm - 11:10 pmOPO  Porto-BIO Bilbao
1h 15mnonstop
Volotea Logo
8:00 pm - 8:20 pmBIO  Bilbao-OPO Porto
1h 20mnonstop
$96Volotea
Sat, Nov 28 - Tue, Dec 1
Vueling Logo
9:55 pm - 8:20 amOPO  Porto-BIO Bilbao
9h 25m1 stop Barcelona-El Prat
Vueling Logo
7:50 pm - 8:10 pmBIO  Bilbao-OPO Porto
1h 20mnonstop
$101Vueling
Thu, Oct 22 - Sun, Oct 25
Multiple Airlines Logo
8:40 pm - 10:55 pmOPO  Porto-BIO Bilbao
1h 15mnonstop
Multiple Airlines Logo
7:00 am - 6:50 pmBIO  Bilbao-OPO Porto
12h 50m2 stops Valencia Turin Citta Di Torino
$108Multiple Airlines
Thu, Oct 22 - Sun, Oct 25
Multiple Airlines Logo
8:40 pm - 10:55 pmOPO  Porto-BIO Bilbao
1h 15mnonstop
Multiple Airlines Logo
7:00 am - 6:50 pmBIO  Bilbao-OPO Porto
12h 50m2 stops Valencia Turin Citta Di Torino
$111Multiple Airlines
Fri, Nov 13 - Sun, Nov 15
Air Europa Logo
7:35 am - 8:05 pmOPO  Porto-BIO Bilbao
11h 30m1 stop Madrid Barajas
Air Europa Logo
9:05 pm - 6:45 amBIO  Bilbao-OPO Porto
10h 40m1 stop Madrid Barajas
$114Air Europa
Booking Insights

Price, demand and travel trends for Porto to Bilbao flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Porto to Bilbao with more confidence.

What's the cheapest day of the week to fly from Porto to Bilbao?

Thursday is the cheapest day of the week to fly from Porto to Bilbao, it is 29% cheaper than the average day. Monday is the most expensive day with flight prices 41% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Porto to Bilbao?

•May is the cheapest month to fly from Porto to Bilbao at $87 round-trip.
•December ($149) and July ($143) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 71% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Porto to Bilbao the cheapest?

Flights from Porto to Bilbao are cheapest 25 weeks before departure. Booking in this window typically costs about 55% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Porto to Bilbao flights

Low season

August

Cheapest flight

$42
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Porto to Bilbao

When to book flights from Porto to Bilbao

Are your dates flexible? Find out the best times to travel from Porto to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Porto to Bilbao flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What airlines are available from Porto to Bilbao?

    2 airlines operate flights between Porto and Bilbao. The airlines offering nonstop flights on this route include:

    • Vueling
    • Volotea

  • Which airports can I use when flying from Porto to Bilbao?

    Flights from Porto to Bilbao usually depart from Porto (OPO) and arrive at Bilbao (BIO).

  • Which airlines include bags at no extra cost on Porto to Bilbao flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Iberia: a cabin bag and a checked bag in Economy Class
    • Vueling: a checked bag in Economy Class class
    • Volotea: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Porto to Bilbao?

    Two cabin classes are available on flights from Porto to Bilbao:

    • Economy Class
    • Business Class

  • How much can I save by taking a layover when flying from Porto to Bilbao?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $96 round-trip, compared to $130 via a layover through Lisbon Humberto Delgado (LIS).

  • What is the standard checked-bag allowance on flights from Porto to Bilbao?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $24–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Porto to Bilbao?

    The Airbus A320-100/200 family is used most often on this route, operated mainly by Vueling and Volotea. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • Which airports do connecting flights from Porto to Bilbao pass through?

    One-stop flights from Porto to Bilbao most commonly connect through:

    • Madrid Barajas (MAD) - 90% of one-stop connections
    • Lisbon Humberto Delgado (LIS) - 10% of one-stop connections
    • Barcelona-El Prat (BCN) - 1% of one-stop connections

    Madrid Barajas (MAD) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Porto to Bilbao?

    Yes. Being flexible with your travel dates can save you up to 50% on the Porto to Bilbao route. Thursday is the cheapest departure day at $81 round-trip on average, while Monday is the most expensive at $161, a difference of $80. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from Porto to Bilbao?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Porto to Bilbao route, 11% of flights were delayed in the past 3 months, with delays averaging 1 hour 36 minutes.

  • How are flight departures from Porto to Bilbao spread across the day?

    Evening is the busiest departure period on Porto to Bilbao flights, with 100% of flights leaving in that window. Morning departures account for 0%, afternoon flights for 0%, and night flights for 0%.

  • What are the earliest and latest flights from Porto to Bilbao?

    These are the earliest and latest flight times available from Porto to Bilbao:

    • Earliest: departs at 4:25 pm and lands at 5:41 pm
    • Latest: departs at 8:55 pm and lands at 10:11 pm.

    The flight takes about 1h 16m.

  • How expensive are last-minute Porto to Bilbao flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 28% above the route average of $114. Book 25 weeks before departure for the lowest fares.

  • How long is a flight from Porto to Bilbao?

    A nonstop flight from Porto to Bilbao takes 1h 16m, covering 327 miles.

  • Do I need a passport to fly from Porto to Bilbao?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Porto to Bilbao looking right now?

    One-way fares from Porto to Bilbao are currently lower than usual. Average one-way flight prices are about $58, which is 30% below the typical average for this route.

  • How do delay rates compare for morning and evening flights from Porto to Bilbao?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from Porto to Bilbao?

    Flying via Madrid Barajas (MAD) gives the shortest average 1-stop total travel time at 3h 42m, compared with 6h 33m via Lisbon Humberto Delgado (LIS) and 9h 42m via Barcelona-El Prat (BCN).

  • What is the time difference between Porto and Bilbao?

    Bilbao is 1 hour ahead of Porto (Central European Time vs Western European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Bilbao Airport (BIO)?

    Bilbao Airport (BIO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:
    • Record go
    • Goldcar Rental SP
    • CLICK RENT
    • Rentbycar
    • Centauro

  • How much should I expect to pay for a Porto to Bilbao flight?

    Round-trip flights from Porto to Bilbao range from $81 to $156, with an average of $114 over the past 12 months. Anything below $81 counts as a good deal.

Your guide to booking Porto to Bilbao flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average $81 - about $80 less than Monday (50% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 55% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Porto to Bilbao trip for May. Fares historically average $87 round-trip in that month - typically $62 less than the most expensive month, which is December (based on the last 12 months).
  • If arriving on time is high on your priority list, Volotea is the strongest pick on this route. 90% of Volotea flights from Porto to Bilbao arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 89%. When flights on this route do arrive late, the average delay is 1 hour 36 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.

Prefer to fly direct from Porto to Bilbao?

 
Find which airlines fly direct from Porto Airport to Bilbao Airport, which days they fly and book direct flights.

Direct departures

Porto to Bilbao

Tuesday

Vueling

Vueling

Wednesday

Vueling

Vueling

Thursday

Volotea,Vueling

Volotea,Vueling

Friday

Vueling

Vueling

Saturday

Vueling

Vueling

Sunday

Volotea,Vueling

Volotea,Vueling

See more direct flights

Direct returns

Bilbao to Porto

Tuesday

Vueling

Vueling

Wednesday

Vueling

Vueling

Thursday

Volotea,Vueling

Volotea,Vueling

Friday

Vueling

Vueling

Saturday

Vueling

Vueling

Sunday

Volotea,Vueling

Volotea,Vueling

See more direct flights

More options for your flight from Porto to Bilbao

Complete your trip to Bilbao with a hotel stay or car rental