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Cheap flights from Porto (OPO) to Bilbao (BIO)

OPO — BIO
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Porto to Bilbao are usually found in February or November, booked 70 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Porto to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) 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 agosto 14, 2025.

Popular in

August

Cheapest in

February

Average price

$200

Good round-trip deal

$174 or less

Good one-way deal

$38 or less
Highest demand for flights based on searches. 33% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Porto to Bilbao.
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Price to beat on a one-way flight from Porto to Bilbao.
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Best time to book a flight from Porto to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Porto 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 Porto to Bilbao

How far ahead should I book a flight from Porto to Bilbao?

Use this chart to determine the optimal time to book a round-trip flight from Porto to Bilbao. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Porto to Bilbao, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Porto to Bilbao (average of $541). Flying from Porto to Bilbao in June is currently the most expensive (average of $1,139). 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.

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

Find hourly flight availability from Porto 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 agosto 14, 2025.

It’s optimal to fly from Porto to Bilbao in the afternoon. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight in the morning.

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 agosto 14, 2025.
Read through reviews of airlines operating flights from Porto to Bilbao, such as Vueling. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Vueling
7.1
Good
1,180 reviews

Boarding

7.1

Comfort

6.8

Entertainment

5.8

Food

6.1

Overall

7.1

Crew

7.7

Reviews

1 / 20
4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience
Vueling
7.1
Good
1,180 reviews
Vueling
7.1
Good
1,180 reviews

Boarding

7.1

Comfort

6.8

Entertainment

5.8

Food

6.1

Overall

7.1

Crew

7.7

Reviews

1 / 20
4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience

Related info for your journey

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

  • What is the cheapest airline to fly from Porto to Bilbao round-trip?

    Currently priced at $29, Vueling will fly you from Porto to Bilbao and back. In addition to Vueling, many other airlines offer competitively priced options for your trip. You may be able to fly from Porto to Bilbao for 73% less than the average price by searching for this airline.

  • What are the most reliable airlines from Porto to Bilbao?

    No one likes to see their flight delayed. When booking a flight from Porto to Bilbao consider choosing Volotea (89%), TAP AIR PORTUGAL (89%) or Vueling (70%) as they are the most reliable in getting you off to your destination on time.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto 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 Porto to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Porto to Bilbao (average of $541). Flying from Porto to Bilbao in June is currently the most expensive (average of $1,139). 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.

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Alternative routes for Porto to Bilbao

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

Top airline flying from Porto to Bilbao

Discover the top airline that operate flights from Porto 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$29Average$105FlexibilityNo cancel feeOn-time88%

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