$76 Cheap Flights from Porto (OPO) to Sofia (SOF)

View $76 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from Porto Airport (OPO) to Sofia Airport (SOF)

Cheap Flights from Porto to Sofia (OPO-SOF)

Prices were available within the past 7 days and start at $76 for one-way flights and $230 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$230 Roundtrip, found 1 day ago
$230
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $230 found 1 day ago
Lufthansa
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $239 found 1 day ago
Lufthansa
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $246 found 1 day ago
Lufthansa
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $249 found 1 day ago
Lufthansa
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$255 Roundtrip, found 1 day ago
$255
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $255 found 1 day ago
Lufthansa
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $263 found 1 day ago
Air Serbia
Mon, Dec 22 - Fri, Jan 2
OPO
Porto
SOF
Sofia
$269 Roundtrip, found 4 days ago
$269
Roundtrip
found 4 days ago
Select Air Serbia flight, departing Mon, Dec 22 from Porto to Sofia, returning Fri, Jan 2, priced at $269 found 4 days ago
Aegean
Thu, Oct 23 - Fri, Oct 31
OPO
Porto
SOF
Sofia
$383 Roundtrip, found 1 day ago
$383
Roundtrip
found 1 day ago
Select Aegean flight, departing Thu, Oct 23 from Porto to Sofia, returning Fri, Oct 31, priced at $383 found 1 day ago
Turkish Airlines
Thu, Mar 5 - Sat, Mar 14
OPO
Porto
SOF
Sofia
$442 Roundtrip, found 1 day ago
$442
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Thu, Mar 5 from Porto to Sofia, returning Sat, Mar 14, priced at $442 found 1 day ago
Iberia
Wed, Nov 12 - Wed, Nov 19
OPO
Porto
SOF
Sofia
$502 Roundtrip, found 6 days ago
$502
Roundtrip
found 6 days ago
Select Iberia flight, departing Wed, Nov 12 from Porto to Sofia, returning Wed, Nov 19, priced at $502 found 6 days ago

Frequently asked questions

How much does a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF) cost?
Grab a cheap one-way flight from $76 or cheap return flight from $230 from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF)?
The cheapest month to fly from OPO to SOF is March, when demand is low. Off-peak season is typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest OPO to SOF flight.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF)?
There are no daily nonstop flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from OPO to SOF?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF)?
To arrive at Sofia Airport (SOF) without delays, book a flight that leaves Dr. Francisco de Sa Carneiro Airport (OPO) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF) last-minute?
Holding off until just before your trip to book a ticket from OPO to SOF generally means paying more. While you may find some last-minute offers, there's no guarantee. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book an OPO to SOF flight and hotel package?
Booking an OPO to SOF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Sofia Airport (SOF)?
If you booked your OPO to SOF flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Sofia
Airlines serving
Aegean, Air Serbia, Austrian Airlines, Iberia, Lufthansa, Turkish Airlines
Roundtrip price
$230
Distance
1640 mi

Book with confidence

Book with confidence

Porto to Sofia Flights

The cheapest times to fly from Porto to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Porto to Sofia are during the month of March. You can find some of the cheapest flights from Porto to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to Sofia

Sunday is one of the best days to book for cheap flights from Porto to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Porto to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Porto to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $76 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Porto to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Porto to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Porto to Sofia Flights

Explore a world of travel with Expedia

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*Available to One Key members.