Open interactive map →Cheap flights from Porto to Bilbao
Fares on the Porto to Bilbao route vary noticeably by season and demand. Right now the lowest available price is €48. The route offers both direct and connecting options depending on the date. Booking further in advance typically unlocks lower prices, especially around school holidays and peak travel months. The calendar below maps out the cheapest and most expensive months so you can plan before committing to dates.
The cheapest fares on popular routes like this tend to sell out first, so it pays to book early once you spot a good price. Early-morning and late-night departures from Porto are often priced lower than midday flights. SkyHopp refreshes fares regularly - if the current price doesn't fit your budget, check back in a few days as availability changes. See all flights from Porto to Spain→
Cheapest month to fly
- August 2026€481 stopCheapest
Based on tracked fares, August is the cheapest month to fly this route at around €48.
Prices last updated: July 2026
About Bilbao
The Basque city that put itself on the global cultural map with the titanium-clad Guggenheim Museum, Bilbao has also become one of Spain's leading food destinations - the pintxos bars of the Casco Viejo are among the most rewarding eating experiences in Europe. Bilbao Airport (BIO) connects to European hubs, and San Sebastian is an hour's drive east.
Alternative routes
Other ways to reach Bilbao
Frequently asked questions
How much does a flight from Porto to Bilbao cost?
The cheapest fare currently available from Porto to Bilbao is €48. Prices on this route vary by season, day of week, and how far in advance you book. The month-by-month price calendar on this page shows exactly when fares are highest and lowest, so you can pick the most cost-effective window before searching for specific dates. Fares are refreshed regularly as our flight partners publish new availability.
Are there direct flights from Porto to Bilbao?
SkyHopp tracks both direct and connecting flights from Porto to Bilbao. Connecting flights are often priced lower but add travel time due to the layover. Whether a non-stop option exists on specific dates depends on airline schedules - use the "Direct only" filter on the interactive map to see non-stop options, or check the booking site for a full breakdown by stop count.
When is the cheapest time to fly from Porto to Bilbao?
Prices on this route typically dip during shoulder-season months, away from school holidays and public holiday windows. Mid-week departures - particularly Tuesday to Thursday - tend to be cheaper than flights on Fridays and Sundays from Porto. The month-by-month price calendar above is the fastest way to identify the cheapest window - look for the months with the lowest fares before committing to travel dates. Booking 3-6 weeks in advance generally offers the best balance of price and seat availability on this route.
Which airlines fly from Porto to Bilbao?
Multiple carriers operate flights between Porto and Bilbao, with availability and pricing varying by date and season. Airline options and schedules change throughout the year, especially around peak travel periods when additional capacity is often added. Click through to our partner booking site to see the full list of airlines, departure times, and fare classes available for your chosen dates.