Cheap flights from Sofia to Porto

Compare Sofia to Porto flight deals

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

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Flight deals from Sofia to Porto

Looking for a cheap last-minute deal or the best return flight from Sofia Airport to Porto Airport? If you want to travel next month, return fares start from $177. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sofia to Porto

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

Direct flights from Sofia to Porto

Sofia to Porto: Alternative routes

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

Sofia to Porto: Flight information

The things to know before you go.
Cheapest flight found$88
Cheapest month to flySeptember
Average flight time4 hrs, 20 mins
Most popular airlineBulgaria Air
Average flights per week1

Finding cheap flights from Sofia to Porto: Frequently asked questions

The best price we found for a return flight from Sofia to Porto is $161. 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.
4 hours and 20 minutes is the average flight time from Sofia to Porto.
Bulgaria Air flies direct from Sofia to Porto.
As of June 2026, there is one flight per week flying from Sofia to Porto.
The cheapest month to fly from Sofia to Porto is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sofia Airport to Porto Airport on Thursday, 8 October 2026.
Yes – the average flight time is 4 hours and 20 minutes.
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 Porto 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 Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Wizz Air and Bulgaria Air offer the cheapest flight tickets to Porto.

Flying from Sofia Airport (SOF) to Porto Airport (OPO): what you need to know

  • Around 4 hours 20 minutes is how long you can expect to be travelling on a direct flight from Sofia Airport to Porto Airport.

  • Porto's timezone is UTC+0, which makes Porto two hours behind Sofia.

  • Arrive at the airport on time so you don't miss your SOF to OPO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • During popular months like August, it's best to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead for an international flight when you fly during a high season in general.

  • Getting to Porto (and then seeing more of Portugal!) is a snap with Bulgaria Air. This popular carrier offers direct flights from Sofia Airport to Porto Airport.

  • Bulgaria Air has the highest passenger demand on this route.

  • If you want to split up your journey, simply uncheck 'Direct flights only' when searching for your ticket from Sofia Airport to Porto Airport. Here are the top stopovers between SOF and OPO:

    • Frankfurt am Main Airport

    • Barcelona Airport

    • Karlsruhe / Baden-Baden Airport

How to find the cheapest flights from Sofia Airport (SOF) to Porto Airport (OPO)

  • Right now, $88 is the cheapest price we've found for a one-way Sofia Airport to Porto Airport flight. The best price for a return ticket is $161. Remember that fares may change due to availability when booking.

  • It's usually smart to book in advance if you want to get cheap tickets from SOF to OPO. That's because flight prices are based on demand, which tends to increase closer to departure.

  • If you can be flexible with your travel plans, try using the 'Whole month' search function. It'll give you the lowest price across each month when searching for a flight from Sofia Airport to Porto Airport.

  • Never miss a deal on cheap flights from SOF to OPO by setting up a Price Alert. You'll receive an email or push notification on the app when a new low fare is offered.

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

Handy information about Sofia Airport (SOF)

  • 77% of flights taking off from Sofia Airport arrive at their destination on schedule.

  • To reach Sofia Airport from central Sofia, it takes around 25 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 10 kilometres from the airport to the city centre.

  • Taking public transport? You can expect a journey time of around 30 minutes.

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

Arriving at Porto Airport (OPO)

  • If you're landing on a late Sofia Airport to Porto Airport flight, nothing tops the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and snoozing soon after at one of these hotels near OPO:

  • Hit the road running by picking up a Porto Airport rental car. Grab a set of wheels from Klass Wagen, Goldcar or Drive & Go and explore beyond Porto's usual tourist stops.

  • Get the best deal by reserving your ride from Porto Airport around three weeks in advance of your trip.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport is roughly 11 kilometres from central Porto. Driving there takes about 20 minutes.

  • Travelling by public transport will take you roughly 30 minutes.

When to fly to Porto Airport (OPO)

  • The quietest month for a flight from Sofia Airport to Porto Airport is March, while August is the most popular. Choose the ideal time to visit Porto based on whether you prefer a more relaxed vibe or a faster pace.

  • Book your flight from Sofia Airport to Porto Airport for August if you'd like to go to Porto during its warmest month. You can expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

  • Look for cheap tickets from SOF to OPO in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 3ºC (37ºF) and 14ºC (57ºF) on average.

Explore more of Portugal

  • You've visited Porto, now it's time to explore more of Portugal. Journey around 274 kilometres south to Lisbon to check off its leading sights. From Pasteis de Belém to belém and Real Mosteiro de Santa Maria de Belém, you've got a jam-packed schedule ahead.

  • If you want to check out another great destination in Portugal, consider Amadora, about 274 kilometres south of Porto. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are among the biggest draws.

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