Cheap Flights from SOF to PHL: When to Fly from Sofia to Philadelphia

The cheapest times to fly from SOF to PHL are

• January 8th to May 6th
• October 8th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SOF to PHL is late January. Prices can be as high as $1339 for Friday flights during mid July, or as low as $666 for Tuesday flights around late January.

When to Fly to Philadelphia

Flying from Sofia (SOF) to Philadelphia, PA (PHL) will usually cost between $705 to $1244 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $707. Due to high demand the most expensive time to fly is mid July, with an average price of $1277. Planning your trip to low-cost times can easily save you $570 on economy flights and even more on first-class flights. Generally, any price below $799 can be considered a good price for a round-trip SOF to PHL flight.

See below for a graph of average weekly prices for the SOF to PHL route. All prices are for round-trip tickets in USD.

Compared to other flights, the SOF to PHL flight is cheaper than the average and costs slightly more than the average flight leaving from Sofia. The average price per mile (for a direct flight) is $0.1, which is far below average.

Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly to Philadelphia, and Saturdays are the most expensive days to return to Sofia. Selecting flights on the least expensive days could save you up to $103 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $826. Return trip prices are from the PHL to SOF flight, and often highlight the quality of our data in showing the same trend.

Nonstop Flights and Layovers

Travelers looking to fly from SOF to PHL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 38 minutes may not be realistic.

Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SOF to PHL while comparing.

Flight Hacking SOF to PHL

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SOF to PHL — but Champion Traveler does!

Flight Questions Answered

Still have questions about flying from SOF to PHL? We’ve got answers.

Which airlines fly this route?

You can find 16 major airlines flying this route most often: Air Canada, Air France, Alitalia, American, Austrian, British Airways, CSA, Delta, Finnair, Iberia, KLM, Lufthansa, Qatar Airways, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Philadelphia International Airport to Sofia Airport?

The distance between the two airports is roughly 4802 miles or 7728 kilometers.

How long does it take to fly from SOF to PHL?

The real-world flight time for a nonstop SOF to PHL flight is about 9 hour 38 minutes.

How many flights go between Sofia and Philadelphia, PA?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from SOF to PHL.

Airport Location Info

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.