Cheap flights from Porto (OPO) to Bilbao (BIO)
OPO — BIO
Mar 15 — Mar 221
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Porto to Bilbao are usually found in March or May, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Monday
Find 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 February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | August |
Cheapest in | March |
Average price | $110 |
Good one-way deal | $43 or less |
Compare providers for flights from Porto to Bilbao
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Bilbao in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Porto-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Bilbao flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Porto-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 Porto-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 Porto to Bilbao
Have a flexible travel schedule? Discover the best time to fly to Bilbao from Porto with our price prediction graph.
OPO-BIO
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
Prices
Delays
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 February 6, 2026.
To ensure you get the cheapest price possible for a flight from Porto to Bilbao, you should look to book at least 63 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, March is the cheapest month in which you can book a flight from Porto to Bilbao (average of $28). Flying from Porto to Bilbao in August is currently the most expensive (average of $90). 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.
How often are flights from Porto to Bilbao delayed?
About 9% of weekly flights between Porto and Bilbao have experienced delays in the past year, with the average delay time being 105 minutes.
What is the most punctual flight time for Porto to Bilbao flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Porto to Bilbao flights?
Over the last year, Volotea have had the lowest number of delays on this route, with just 7% of flights being delayed.
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 February 13, 2026.
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.
Entertainment
5.9
Overall
7.1
Boarding
7.2
Food
6.2
Comfort
6.8
Crew
7.7
Reviews
1 / 20
10.0
ExcellentLuis Alfonso,Feb 2026
BCN - ALC
Entertainment
5.9
Overall
7.1
Boarding
7.2
Food
6.2
Comfort
6.8
Crew
7.7
Reviews
1 / 20
10.0
ExcellentLuis Alfonso,Feb 2026
BCN - ALC
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.
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Other flights to Bilbao
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Porto and Bilbao flights
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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 February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$111 | FlexibilityNo cancel fee | On-time88% |