Cheap flights from Philadelphia (PHL) to Sofia (SOF) from $458

This is the cheapest one-way flight price, found on 12/6. Prices may vary by date and flight preferences.
PHL — SOF
Dec 12 — Dec 191

The best prices from Philadelphia to Sofia are usually found in November or February, booked 60 days in advance, depart on a Monday or Wednesday and return on a Monday

How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 7, 2023.

Popular in

June

Cheapest in

November

Round-trip from

$558

One-way from

$458
High demand for flights, 26% potential price rise
Best time to find cheap flights, 34% potential price drop
From Philadelphia to Sofia
One-way flight from Philadelphia to Sofia

What is the cheapest day to fly round-trip from Philadelphia to Sofia?

Users have found that flying from Philadelphia to Sofia on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Philadelphia to Sofia?

Travelers have found it’s best to book a flight 60 days in advance to save up to 228% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 60 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Philadelphia to Sofia 1-2 weeks in advance for as low as $1,515, or $1,791 for flights within the next 24 hours.

What is the cheapest month to fly from Philadelphia to Sofia?

November can be a great time to fly to Sofia from Philadelphia with a flight ticket averaging about $1,024. Cheapflights users have found deals in the month of November for as cheap as $484. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Philadelphia to Sofia (PHL - SOF)?

One of the essential ways to save on airfare from Philadelphia to Sofia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 34% on airfare.

Cheap British Airways flights from Philadelphia to Sofia

Explore cheap flight options specifically provided by British Airways for the route between Philadelphia and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.

Cheap Philadelphia to Sofia flights in December & January 2023

Find cheap flight options from Philadelphia to Sofia specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Prices were last updated on December 7, 2023.

Philadelphia to Sofia 2023 flight deals

Discover exclusive flight deals for travel between Philadelphia and Sofia in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.

One-way flights to Sofia from Philadelphia

Search for one-way flight options from Philadelphia to Sofia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.

Find flights from Philadelphia to Sofia within your budget

Customize your flight search to find flights from Philadelphia to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.

Fly from

Any airport

Fly to

Any airport

Budget

$717 - $1,431

Route

Depart

Return

Price

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 2/14

1 stop15h 00m

Sofia

Sun 2/25

1 stop28h 10m

$717

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 2/14

2 stops19h 50m

Sofia

Sun 2/25

1 stop28h 10m

$721

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 2/14

2 stops19h 30m

Sofia

Sun 2/25

2 stops15h 22m

$723

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 2/14

2 stops19h 30m

Sofia

Sun 2/25

3 stops22h 50m

$729

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Fri 12/29

2 stops37h 45m

Sofia

Fri 1/5

2 stops51h 12m

$1,020

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Thu 12/28

2 stops19h 30m

Sofia

Tue 1/2

2 stops32h 12m

$1,164

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Thu 12/28

1 stop21h 20m

Sofia

Tue 1/2

2 stops32h 12m

$1,169

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Fri 12/29

2 stops20h 36m

Sofia

Fri 1/5

1 stop29h 00m

$1,391

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Thu 12/28

1 stop21h 20m

Sofia

Tue 1/2

1 stop16h 40m

$1,431

Flights are sorted by cheapest first

Deals found on 12/6

Average price of flights to Sofia by month

Plan your trip from Philadelphia to Sofia by taking into account the cheapest months to travel. The average price of a one-way flight from Philadelphia to Sofia is currently 491.00 USD while a round-trip flight costs 1007.22 USD. Price data was last updated on December 3, 2023.

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Sofia (average of $558). Flying from Philadelphia to Sofia in June is currently the most expensive (average of $1,381). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$558

February

$602

March

$708

April

$767

May

$862

June

$1,381

July

$1,277

August

$964

September

$776

October

$705

November

$662

December

$704

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated December 7, 2023.
7.4
Good
1,902 reviews

Entertainment

7.0

Comfort

7.3

Food

6.7

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 10

The flight to Denver was delayed for hours. Not cool. I ended up arriving in rapid city really late. That caused a lot of problems.

7.4
Good
1,902 reviews
7.4
Good
1,902 reviews

Entertainment

7.0

Comfort

7.3

Food

6.7

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 10

The flight to Denver was delayed for hours. Not cool. I ended up arriving in rapid city really late. That caused a lot of problems.

6.7
Okay
989 reviews
7.4
Good
1,902 reviews

Entertainment

7.0

Comfort

7.3

Food

6.7

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 10

The flight to Denver was delayed for hours. Not cool. I ended up arriving in rapid city really late. That caused a lot of problems.

6.5
Okay
1,154 reviews
7.4
Good
1,902 reviews

Entertainment

7.0

Comfort

7.3

Food

6.7

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 10

The flight to Denver was delayed for hours. Not cool. I ended up arriving in rapid city really late. That caused a lot of problems.

Average temperature in Sofia by month

Plan your trip to Sofia by selecting the month that matches your preferred temperature. July sees the highest average temperature while January sees the lowest average temperature. Temperature data was last updated on December 3, 2023.

SOF

Temperature

30.2 - 68 °F

Average rainfall in Sofia by month

Keep in mind the precipitation totals in Sofia when planning your trip. Sofia sees an average of 1.73 precipitation per year with the most occurring in June. Precipitation data was last updated on December 3, 2023.

SOF

Rainfall

1.2 - 2.8 inches

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find flights from Philadelphia to Sofia for under $800 on Cheapflights?

Yes, there are multiple flights from Philadelphia to Sofia for under $800. The cheapest flight booked recently is on British Airways for just $717, but on average you can expect to pay $1,182.

What are the cheapest airlines flying from Philadelphia to Sofia round-trip?

According to our current data, British Airways ($717), Air Canada ($729), and United Airlines ($1,431) offers the cheapest pricing from Philadelphia to Sofia. These flights start at 29% lower than the current average price 3 months from now.

What are the most popular airlines that fly from Philadelphia to Sofia?

What does PHL to SOF mean?

Philadelphia Airport is PHL and Sofia Airport is SOF. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Sofia
See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Philadelphia to Sofia

Discover the top 4 airlines that operate flights from Philadelphia to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$574Average$914FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$605Average$1,327FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$831Average$1,206FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest$1,314Average$1,328FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Search flights to Sofia by cabin class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Philadelphia to Sofia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Philadelphia to Sofia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Sofia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Philadelphia to Sofia.

Can Cheapflights find flights from Philadelphia to Sofia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Philadelphia to Sofia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Philadelphia to Sofia become cheaper?

Yes! Start tracking prices for Philadelphia to Sofia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.