Cheap flights from Sofia to Bilbao

Travelers and cabin class

Compare Sofia to Bilbao flight deals

Find the cheapest month or even day of the year to fly to Bilbao

Book the best Bilbao fare with no extra fees

Flight deals from Sofia to Bilbao

Looking for a cheap last-minute deal or the best round-trip flight from Sofia to Bilbao? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Sofia to Bilbao

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sofia to Bilbao flights are currently cheapest in September.

Sofia to Bilbao: Alternative routes

Compare routes from Sofia to Bilbao below. You may find an airport to fly into that's cheaper, faster, or easier than Bilbao.

Sofia to Bilbao: Flight information

The things to know before you go.
Cheapest flight foundC$232
Cheapest month to flySeptember

Finding cheap flights from Sofia to Bilbao: Frequently asked questions

The best price we found for a round-trip flight from Sofia to Bilbao is C$232. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sofia to Bilbao. But we found flights with one or more stops from C$232.
There are no flights flying from Sofia to Bilbao, as of May 2025.
The cheapest month to fly from Sofia to Bilbao is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sofia Airport to Bilbao Airport on Friday, September 19, 2025.
No airlines currently offer direct flights between Sofia Airport and Bilbao Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bilbao but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Bilbao is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Lufthansa offers the cheapest flight tickets to Bilbao.

Travelling from Sofia Airport (SOF) to Bilbao Airport (BIO): what you need to know

  • The timezone in Bilbao is UTC+1, which is one hour behind Sofia.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your SOF to BIO flight.

  • You can expect longer lines in popular months such as August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a smart move.

  • Think about adding a stopover when booking your ticket from Sofia Airport to Bilbao Airport. Simply deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between SOF and BIO:

    • Milano Malpensa Airport

    • Leonardo da Vinci-Fiumicino Airport

    • Palma de Mallorca Airport

How to find the cheapest flights from Sofia Airport (SOF) to Bilbao Airport (BIO)

  • Right now, C$67 is the lowest price we've found for a one-way Sofia Airport to Bilbao Airport flight. The best price for a return plane ticket is C$232. Bear in mind that fares can change due to demand at the time of booking.

  • Don't wait until the last minute. You're more likely to get cheap tickets from SOF to BIO if you book early. Airlines often offer some excellent early bird rates.

  • If you're flexible with your travel plans, use the 'Whole month' search function. It'll give you the cheapest price across the month when searching for a flight from Sofia Airport to Bilbao Airport.

  • Finding cheap flights from SOF to BIO is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as a lower fare pops up.

  • Tailor your flights using filters. Pick your arrival and departure times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Sofia Airport to Bilbao Airport.

Handy information about Sofia Airport (SOF)

  • Of the departures from Sofia Airport, 66.73% arrive as scheduled at their destination.

  • To get to Sofia Airport from central Sofia, it'll take about 15 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 11 kilometres from the airport to the city centre.

  • The trip when using public transport typically takes 35 minutes.

  • Catching an early flight from Sofia Airport to Bilbao Airport? Avoid the last-minute rush to the airport (and get some extra shut-eye) by choosing one of these stays close to SOF:

Arriving at Bilbao Airport (BIO)

  • The last thing you want is a long journey to your hotel if you're getting in late on a Sofia Airport to Bilbao Airport flight. Check in to one of these accommodation options near BIO instead:

  • Travel at your own speed with a Bilbao Airport rental car. Pick up a set of wheels from Record Go, Click and Rent or Goldcar and discover more of Bilbao and beyond.

  • To get the lowest price, book your ride from Bilbao Airport around four weeks before you travel.

Getting from Bilbao Airport (BIO) to central Bilbao

  • Bilbao Airport to central Bilbao has a drive time of about 10 minutes. It's approximately 6 kilometres away.

  • Travelling on public transport takes roughly 30 minutes.

When to fly to Bilbao Airport (BIO)

  • It's time to choose your trip dates for your flight from Sofia Airport to Bilbao Airport. July is the most popular month to visit Bilbao. If you prefer a quieter vibe, go in January.

  • Lock in your flight from Sofia Airport to Bilbao Airport for August if you'd like to go to Bilbao during its warmest month. Expect temperatures of between 16ºC (61ºF) and 25ºC (77ºF).

  • Look for cheap tickets from SOF to BIO in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 13ºC (55ºF) on average.

Explore more of Spain

  • You've seen Bilbao, now it's time to explore other parts of Spain. Journey around 241 kilometres south-east to Zaragoza to check off its leading attractions. From Puente de Piedra to Museo Pablo Gargallo and El Tubo, your itinerary will be busy.

  • Salamanca is another sought-after destination in Spain and is around 338 kilometres south-west of Bilbao. No trip is complete without experiencing Plaza Mayor, S.O.U. Servicio de Orientación al Universitario. Universidad de Salamanca and Pontifical University of Salamanca.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.