Cheap flights from Sofia to Philadelphia

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Flight deals from Sofia Airport to Philadelphia

Looking for a cheap last-minute deal or the best return flight from Sofia Airport to Philadelphia? If you want to travel next month, return fares start from P40,329. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sofia to Philadelphia

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

Sofia to Philadelphia: Flight information

The things to know before you go.
Cheapest flight foundP40,329
Cheapest month to flyApril

Finding cheap flights from Sofia to Philadelphia: Frequently asked questions

There are 6 airports in Philadelphia: Philadelphia International, Blue Bell, Philadelphia Trenton-Mercer, Greater Wilmington, Atlantic City International, and Allentown.
The best price we found for a return flight from Sofia to Philadelphia is P40,329. 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 Philadelphia. But we found flights with one or more stops from P40,329.
As of March 2026, there are no flights flying from Sofia to Philadelphia.
The cheapest month to fly from Sofia to Philadelphia is usually April.
If you're flying from Sofia Airport, the cheapest airport near Philadelphia is Philadelphia International – which is 11.2 km away from the centre of Philadelphia. We've found flights into this airport from P40,329.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sofia Airport to Philadelphia on Thursday, 2 April 2026.
No airlines currently offer direct flights between Sofia Airport and Philadelphia. 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 Philadelphia 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 Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 4°C. July is typically the warmest month in Philadelphia, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -5°C. The rainiest month is July.
Currently, Lufthansa offers the cheapest flight tickets to Philadelphia.

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

  • The timezone in Philadelphia is UTC-4. The city is six hours behind Sofia, where Sofia Airport is located.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your SOF to Philadelphia flight.

  • Planning to travel during a peak time like a bank holiday? Expect longer lines at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

  • We make it simple to book plane tickets from SOF to Philadelphia with a stopover. To see the options, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. Well-traveled stopover hubs include:

    • Amsterdam Airport Schiphol (AMS)

    • Leonardo da Vinci-Fiumicino Airport (FCO)

    • Zurich Airport (ZRH)

  • SOF is around 6 kilometres from central Sofia. If you're catching a cab, ride-sharing or driving from the centre, it'll take 15 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be around 35 minutes.

  • Booked an early flight from Sofia Airport to Philadelphia? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these stays close to SOF:

  • 66.73% of flights leaving from Sofia Airport arrive at their destination on time.

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

  • The best price we've found for a one-way Sofia Airport to Philadelphia flight is P24,614. The cheapest price for a return flight is P40,329. Bear in mind fares can change due to demand at the time of booking.

  • To find cheap flights from SOF to Philadelphia, book in advance. Airlines generally offer lower prices when flights first go on sale.

  • Finding cheap tickets from Sofia Airport to Philadelphia is easier if you're flexible with your dates. Try using the 'Whole month' tool to access the best prices across every month and score an incredible deal.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll update you when there's an even bigger deal on cheap flights from SOF to Philadelphia.

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

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • Philadelphia International Airport (PHL) to central Philadelphia takes about 15 minutes by car. The centre is roughly 19 kilometres away.

  • It takes around 45 minutes to get there using public transport.

  • If you're arriving on a late flight from Sofia Airport to Philadelphia, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and resting soon after at one of these accommodation options near PHL:

  • Pick up a Philadelphia International Airport rental car and discover Philadelphia and beyond with your own wheels. Dollar, Thrifty and Budget are well-known companies you can book with here.

  • Lock in the best rate by booking your ride from Philadelphia International Airport about three weeks before your flight from SOF to Philadelphia.

  • The address for PHL is 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • Once your flight from Sofia Airport to Philadelphia has landed, you can reach the city centre in about 40 minutes by car. Central Philadelphia is roughly 56 kilometres from Trenton-Mercer Airport (TTN).

  • If you travel by public transport, the ride to the centre takes 1 hour 45 minutes or so.

  • You'll find some comfortable places ready to welcome you near TTN. Unwind and get cosy after your SOF to Philadelphia flight at one of these perfectly located options:

  • Budget, National and Enterprise make collecting a Trenton-Mercer Airport rental car easy and quick. These companies are located in or around the terminal and will have you on the road before long.

  • Secure your first choice, not your last resort. Securing your ride from TTN four weeks in advance often means lower prices and a bigger choice of vehicles.

  • The address for Trenton-Mercer Airport is Scotch Road, Terminal Building.

Best time to go to Philadelphia

  • Carefully consider your travel dates before securing your flight from Sofia Airport to Philadelphia. The city comes alive in high season, but rates are usually higher and top attractions can be crowded. Plan your trip to Philadelphia in the low season for a more relaxed vibe.

  • Before locking in your Sofia Airport to Philadelphia plane ticket, think about what kind of weather you prefer. July is the warmest month in Philadelphia, with temperatures ranging from 18ºC (64ºF) to 32ºC (90ºF).

  • If you want cooler conditions, look for a cheap ticket from SOF to Philadelphia in January when temperatures average between -7ºC (19ºF) and 9ºC (48ºF).

More about Philadelphia

Explore more of United States

  • You've seen Philadelphia, now it's time to discover other corners of United States. Journey about 129 kilometres north-east to New York to tick off its top sights. From Statue of Liberty to Central Park and Empire State Building, you'll have a packed itinerary ahead.

  • Boston is another well-known destination in United States and is around 434 kilometres north-east of Philadelphia. No journey is complete without dropping by Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.

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