$253 Cheap Flights from Bilbao (BIO) to Sofia (SOF) in 2025

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Flight deals from Bilbao to Sofia

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

Sofia.$253 per passenger.Departing Sat, 6 Sep, returning Sat, 8 Nov.Return flight with Wizz Air Malta and Ryanair.Outbound indirect flight with Wizz Air Malta, departs from Bilbao on Sat, 6 Sep, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Sat, 8 Nov, arriving in Bilbao.Price includes taxes and charges.From $253, select.

Sofia.$263 per passenger.Departing Tue, 30 Sep, returning Mon, 13 Oct.Return flight with easyJet and Wizz Air.Outbound indirect flight with easyJet, departs from Bilbao on Tue, 30 Sep, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Mon, 13 Oct, arriving in Bilbao.Price includes taxes and charges.From $263, select.

Sofia.$286 per passenger.Departing Mon, 24 Nov, returning Sun, 30 Nov.Return flight with Air Europa and Ryanair.Outbound indirect flight with Air Europa, departs from Bilbao on Mon, 24 Nov, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Sun, 30 Nov, arriving in Bilbao.Price includes taxes and charges.From $286, select.

Sofia.$295 per passenger.Departing Thu, 4 Sep, returning Sat, 13 Sep.Return flight with Vueling Airlines and Ryanair.Outbound indirect flight with Vueling Airlines, departs from Bilbao on Thu, 4 Sep, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Sat, 13 Sep, arriving in Bilbao.Price includes taxes and charges.From $295, select.

Sofia.$297 per passenger.Departing Wed, 1 Oct, returning Mon, 6 Oct.Return flight with Volotea and Wizz Air.Outbound indirect flight with Volotea, departs from Bilbao on Wed, 1 Oct, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Mon, 6 Oct, arriving in Bilbao.Price includes taxes and charges.From $297, select.

Sofia.$317 per passenger.Departing Fri, 31 Oct, returning Mon, 3 Nov.Return flight with Vueling Airlines and Ryanair.Outbound indirect flight with Vueling Airlines, departs from Bilbao on Fri, 31 Oct, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Mon, 3 Nov, arriving in Bilbao.Price includes taxes and charges.From $317, select.

Sofia.$373 per passenger.Departing Wed, 18 Feb, returning Wed, 25 Feb.Return flight with Wizz Air Malta and Ryanair.Outbound indirect flight with Wizz Air Malta, departs from Bilbao on Wed, 18 Feb, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Wed, 25 Feb, arriving in Bilbao.Price includes taxes and charges.From $373, select.

Sofia.$394 per passenger.Departing Mon, 22 Dec, returning Tue, 30 Dec.Return flight with Vueling Airlines and Ryanair.Outbound indirect flight with Vueling Airlines, departs from Bilbao on Mon, 22 Dec, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Tue, 30 Dec, arriving in Bilbao.Price includes taxes and charges.From $394, select.

Find the cheapest month to fly from Bilbao to Sofia

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

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Bilbao to Sofia: Alternative routes

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

Bilbao to Sofia: Flight information

The things to know before you go.

Cheapest flight found	$253
Cheapest month to fly	September

Finding cheap flights from Bilbao to Sofia: Frequently asked questions

How much are return flights from Bilbao to Sofia?

The best price we found for a return flight from Bilbao to Sofia is $253. 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.

Which airlines fly direct from Bilbao to Sofia?

Currently, there are no airlines that fly direct from Bilbao to Sofia. But we found flights with one or more stops from $253.

How many flights are there a week from Bilbao to Sofia?

As of July 2025, there are no flights flying from Bilbao to Sofia.

When is the cheapest time to fly from Bilbao to Sofia?

The cheapest month to fly from Bilbao to Sofia is usually September.

Which upcoming date is cheapest to fly from Bilbao Airport to Sofia Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Bilbao Airport to Sofia Airport on Saturday, 6 September 2025.

Can I get a direct flight from Bilbao Airport to Sofia Airport?

No airlines currently offer direct flights between Bilbao Airport and Sofia Airport. Most routes have one or more stops.

How can I find the best flight deal to Sofia?

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 Sofia 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.

When is the best time to book flights to Sofia?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sofia is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Bilbao Airport to Sofia with?

Currently, Wizz Air Malta offers the cheapest flight tickets to Sofia.

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

Sofia's timezone is UTC+2, making Sofia one hour ahead of Bilbao.
Your BIO to SOF flight won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.
During popular months like July, it's a good idea to get to the airport earlier. Arrive two hours before a domestic departure and four hours ahead of international flights when you fly during a high season in general.
Think about adding a stopover when booking your ticket from Bilbao Airport to Sofia Airport. Just deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Here's where you can stop between BIO and SOF:
- Valencia Airport
- Frankfurt Airport
- Charles de Gaulle Airport

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

At the moment, $116 is the cheapest price we've found for a one-way Bilbao Airport to Sofia Airport flight. The best price for a return ticket is $253. Bear in mind that fares may change due to availability when booking.
Don't leave things to the last moment. You're more likely to find cheap tickets from BIO to SOF if you book in advance. Airlines often have some terrific early bird rates.
The 'Whole month' tool shows you the cheapest flights from Bilbao Airport to Sofia Airport across the month. It's an easy way to find a bargain if your travel dates are flexible.
Picking up cheap flights from BIO to SOF is easy with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as there's a better deal.
Pick your ideal departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Bilbao Airport to Sofia Airport.

Handy information about Bilbao Airport (BIO)

Bilbao Airport scores top marks for its on-time performance. 82.76% of flights that depart BIO land on time.
To get to Bilbao Airport from central Bilbao, it'll take around 10 minutes if you're going by car. Of course, this depends on traffic. It's approximately 6 kilometres from the airport to the city centre.
You can expect a journey time of around 30 minutes on public transport.
Have an early flight from Bilbao Airport to Sofia Airport? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by choosing one of these hotels close to BIO:

Arriving at Sofia Airport (SOF)

The last thing you want is a long trip to your hotel if you're getting in late on a Bilbao Airport to Sofia Airport flight. Stay at one of these accommodation options near SOF instead:
Get on the fast track to adventure by picking up a Sofia Airport rental car. Grab your wheels from MEX, Surprice or NU Car Rentals and explore beyond Sofia's usual tourist stops.
Booking your ride from Sofia Airport about one week ahead gives you the best shot at securing a great deal.

Getting from Sofia Airport (SOF) to central Sofia

Sofia Airport is approximately 11 kilometres from the centre of Sofia. The drive time takes about 15 minutes.
Travelling on public transport takes roughly 35 minutes.

When to fly to Sofia Airport (SOF)

The quietest month for a flight from Bilbao Airport to Sofia Airport is April, while August is the busiest. Choose the ideal time to go to Sofia based on whether you prefer a laid-back vibe or a more bustling atmosphere.
The warmest month in Sofia is August, with temperatures ranging between 14ºC (57ºF) and 30ºC (86ºF). Lock in your flights from Bilbao Airport to Sofia Airport in this month if this is the type of weather you enjoy.
If you like cooler conditions, search for a cheap ticket from BIO to SOF in January. Temperatures average between -11ºC (12ºF) and 7ºC (45ºF) then.

Explore more of Bulgaria

Sofia has its own special appeal, but there are so many other parts of Bulgaria just waiting to be discovered. Around 129 kilometres south-east of Sofia, a visit to Plovdiv will keep you on the go. Start with attractions like Plovdiv Old Town, Plovdiv Roman Theatre and Archaelogical Complex Nebet Tepe.
If you want to check out another major stop in Bulgaria, consider Varna, about 386 kilometres east of Sofia. Park Asparuhovo - Asparuhovo sea garden, Dormition of theotokos Cathedral and Sunset viewpoint (място за гледане на Залеза) are highlights.