93 € Cheap Flights from Sofia to Bilbao

Compare Sofia to Bilbao flight deals

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

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Flight deals from Sofia to Bilbao

Looking for a cheap last-minute deal or the best return flight from Sofia Airport to Bilbao Airport? If you want to travel next month, return fares start from 113 €. Find the lowest prices on one-way and return 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 found93 €
Cheapest month to flySeptember

Finding cheap flights from Sofia to Bilbao: Frequently asked questions

The best price we found for a return flight from Sofia to Bilbao is 93 €. 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 93 €.
As of June 2026, there are no flights flying from Sofia to Bilbao.
The cheapest month to fly from Sofia to Bilbao is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sofia Airport to Bilbao Airport on Tuesday, 15 September 2026.
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, Ryanair offers the cheapest flight tickets to Bilbao.

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

  • Bilbao is one hour behind Sofia and is in the UTC+1 timezone.

  • Your SOF to BIO flight won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Be prepared for longer lines during popular months such as August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a smart move.

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

    • Rome Fiumicino Airport

    • Palma - Majorca Airport

    • Milan Malpensa Airport

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

  • 43 € is currently the best price for a one-way Sofia Airport to Bilbao Airport flight. A return flight starts at 93 €. These fares can change based on availability.

  • Don't leave everything to the last minute. You're more likely to get cheap tickets from SOF to BIO if you book in advance. Airlines often offer some terrific early bird deals.

  • Getting cheap flights from Sofia Airport to Bilbao Airport is more likely if you can be flexible with your trip dates. Use the 'Whole month' search tool to see the best prices across each month and snap up a great deal.

  • Save time looking for cheap flights from SOF to BIO by creating a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Find the perfect flight for you by using the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Sofia Airport to Bilbao Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and number of stops.

Handy information about Sofia Airport (SOF)

  • When it comes to the on-time performance of Sofia Airport, 77% of flights meet their scheduled arrival time.

  • Sofia Airport is about 10 kilometres from central Sofia. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 25 minutes or so to get there, depending on the traffic.

  • Catching public transport? Expect a trip time of around 30 minutes.

  • Get your trip off to a leisurely start by staying near SOF. Whether you've booked an early flight from Sofia Airport to Bilbao Airport or just don't like being rushed, these stays are perfect:

Arriving at Bilbao Airport (BIO)

  • If you're landing on a late Sofia Airport to Bilbao Airport flight, few things top the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and resting soon after at one of these accommodation options near BIO:

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

  • Reserving your vehicle from Bilbao Airport around four weeks ahead can help you get the best possible rate.

When to fly to Bilbao Airport (BIO)

  • It's time to work out your trip dates for your flight from Sofia Airport to Bilbao Airport. June is the busiest month to head to Bilbao. If you like a more relaxed vibe, go in March.

  • The warmest month in Bilbao is August, with temperatures ranging between 16ºC (61ºF) and 26ºC (79ºF). Book your flights from Sofia Airport to Bilbao Airport in this month if you enjoy this type of weather.

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

Explore more of Spain

  • Zaragoza is just one of the many cities in Spain waiting to be discovered once you've taken in the sights of Bilbao. Around 241 kilometres away to the south-east, its top attractions include Plaza del Pilar, La Seo del Salvador and Basílica de Nuestra Senora del Pilar.

  • If you're ready to explore another side of Spain, head for Salamanca, about 338 kilometres south-west of Bilbao. Catedral de Salamanca, Salamanca, Casco Historico and Plaza Mayor are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.