Which airports can I use when flying from Sofia to Philadelphia?

Flights from Sofia to Philadelphia usually depart from Sofia (SOF) and arrive at Philadelphia (PHL).

What cabin classes can I book on flights from Sofia to Philadelphia?

Only Economy Class is available on flights from Sofia to Philadelphia.

Which airports do connecting flights from Sofia to Philadelphia pass through?

One-stop flights from Sofia to Philadelphia most commonly connect through: • Frankfurt am Main (FRA) - 76% of one-stop connections • Amsterdam Schiphol (AMS) - 18% of one-stop connections • London Heathrow (LHR) - 3% of one-stop connections • Zurich (ZRH) - 3% of one-stop connections

Can I save money by using flexible dates for flights from Sofia to Philadelphia?

Yes. Flexible dates can save you up to 33% on flights from Sofia to Philadelphia. Tuesday is the cheapest departure day at $826 round-trip on average, while Thursday is the most expensive at $1,225, a difference of $399. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Philadelphia?

Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square and Philadelphia Stadium. These are among the most viewed places in Philadelphia on KAYAK.

How long is a flight from Sofia to Philadelphia?

A nonstop flight from Sofia to Philadelphia takes 00m, covering 4,800 miles.

Do I need a passport to fly from Sofia to Philadelphia?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Sofia to Philadelphia changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $816 to $1,589. That means the highest observed fare was about 94% higher than the lowest one.

How are flight prices from Sofia to Philadelphia looking right now?

One-way fares from Sofia to Philadelphia are currently higher than usual. Average one-way flight prices are about $734, which is 9% above the typical average for this route.

How much time can I save by choosing a different layover airport from Sofia to Philadelphia?

Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time at 12h 12m, compared with 12h 47m via Amsterdam Schiphol (AMS) and 15h 40m via Frankfurt am Main (FRA).

What is the time difference between Sofia and Philadelphia?

Philadelphia is 6 hours behind Sofia (Eastern Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Philadelphia Airport (PHL)?

Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates averaging $69 for economy cars. Top options include: • Payless • Dollar • Hertz • Thrifty • Alamo

How much should I expect to pay for a Sofia to Philadelphia flight?

Round-trip flights from Sofia to Philadelphia range from $846 to $994, with an average of $939 over the past 12 months. Anything below $846 counts as a good deal.

How much is a round-trip flight from Sofia to Philadelphia?

Round-trip flights from Sofia to Philadelphia typically range from $846 to $994. The lowest price found in the past 5 days was $816, on Lufthansa.

Which airline is the cheapest to fly from Sofia to Philadelphia?

Lufthansa ($816) and United Airlines ($834) are the cheapest airlines to fly round-trip from Sofia to Philadelphia according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Sofia to Philadelphia?

Frankfurt am Main (FRA) is the most popular layover for the Sofia to Philadelphia route. 76% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via FRA.

What is the cheapest layover airport when flying from Sofia to Philadelphia?

Flights via London Heathrow (LHR) offer the most affordable fares, with an average round-trip price of $783. Based on KAYAK data over the past 3 months.

When flying from Sofia to Philadelphia which airport offers the shortest layover?

Zurich (ZRH) had the shortest average connection time for Sofia to Philadelphia layovers at 7h 07m over the past 3 months.

$582 CHEAP FLIGHTS from Sofia to Philadelphia (SOF - PHL)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$816

Typical prices: $846-$994

Lufthansa

Mon 11/19Mon 11/26

SOF - PHL • 1 stop

Cheapest one-way

$582

Typical prices: $656-$695

Multiple Airlines

Wed 11/14

SOF - PHL • 3 stops

Nonstop flights

Not available

There are currently no direct flights between Sofia and Philadelphia. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

March

Cheapest • 26% price drop

September

Most popular

Good to know

Top layover airports

London Heathrow (LHR)

Cheapest • Avg $783 (round-trip)

Zurich (ZRH)

Shortest trip • 12h 12m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Philadelphia!

Flight Deals

Cheap Flights from Sofia to Philadelphia (SOF-PHL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Sofia to Philadelphia

Thu, Nov 19 - Thu, Nov 26

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

$816Lufthansa

Thu, Nov 19 - Thu, Nov 26

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

9:45 am - 10:55 pmPHL Philadelphia-SOF Sofia

30h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

$834United Airlines

Thu, Nov 19 - Thu, Nov 26

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

$835Lufthansa

Thu, Dec 17 - Wed, Jan 6

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

10:31 am - 10:55 pmPHL Philadelphia-SOF Sofia

29h 24m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

$837United Airlines

Thu, Dec 17 - Mon, Jan 4

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

6:51 pm - 10:55 pmPHL Philadelphia-SOF Sofia

21h 04m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

$837United Airlines

Thu, Nov 19 - Thu, Nov 26

6:00 am - 4:21 pmSOF Sofia-PHL Philadelphia

17h 21m3 stops Munich Franz Josef Strauss Frankfurt am Main Toronto Pearson Intl

3:20 pm - 1:25 pmPHL Philadelphia-SOF Sofia

15h 05m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

$934Air Canada

Fri, Dec 18 - Tue, Jan 5

8:25 pm - 3:25 pmSOF Sofia-PHL Philadelphia

50h 00m2 stops London Heathrow Amsterdam Schiphol

7:35 pm - 8:10 pmPHL Philadelphia-SOF Sofia

17h 35m1 stop London Heathrow

$956British Airways

Sun, Dec 20 - Tue, Jan 5

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

$962Lufthansa

Sat, Dec 19 - Tue, Jan 5

6:15 pm - 4:05 pmSOF Sofia-PHL Philadelphia

28h 50m2 stops Vienna Intl Frankfurt am Main

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

$968Multiple Airlines

Sat, Dec 19 - Tue, Jan 5

7:00 pm - 4:05 pmSOF Sofia-PHL Philadelphia

28h 05m1 stop Frankfurt am Main

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

$973Lufthansa

Booking Insights

Price, demand and travel trends for Sofia to Philadelphia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Sofia to Philadelphia? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sofia to Philadelphia departing in november.

Find deals

Low season	March
High season	September
Cheapest flight	$582

Beat the crowds with an average 92% drop in travelers.

The most popular month to fly with an average 20% increase in travelers.

One-way flight from Sofia to Philadelphia

When to book flights from Sofia to Philadelphia

Are your dates flexible? Find out the best times to travel from Sofia to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Sofia to Philadelphia?
Only Economy Class is available on flights from Sofia to Philadelphia.
How long is a flight from Sofia to Philadelphia?
A nonstop flight from Sofia to Philadelphia takes 00m, covering 4,800 miles.
Do I need a passport to fly from Sofia to Philadelphia?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Sofia to Philadelphia flight?
Round-trip flights from Sofia to Philadelphia range from $846 to $994, with an average of $939 over the past 12 months. Anything below $846 counts as a good deal.
Have flight prices from Sofia to Philadelphia changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $816 to $1,589. That means the highest observed fare was about 94% higher than the lowest one.
How are flight prices from Sofia to Philadelphia looking right now?
One-way fares from Sofia to Philadelphia are currently higher than usual. Average one-way flight prices are about $734, which is 9% above the typical average for this route.
What car rental options are available at Philadelphia Airport (PHL)?
Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates averaging $69 for economy cars. Top options include:

• Payless
• Dollar
• Hertz
• Thrifty
• Alamo
Which airports can I use when flying from Sofia to Philadelphia?
Flights from Sofia to Philadelphia usually depart from Sofia (SOF) and arrive at Philadelphia (PHL).
Which airports do connecting flights from Sofia to Philadelphia pass through?
One-stop flights from Sofia to Philadelphia most commonly connect through:

• Frankfurt am Main (FRA) - 76% of one-stop connections
• Amsterdam Schiphol (AMS) - 18% of one-stop connections
• London Heathrow (LHR) - 3% of one-stop connections
• Zurich (ZRH) - 3% of one-stop connections
Can I save money by using flexible dates for flights from Sofia to Philadelphia?
Yes. Flexible dates can save you up to 33% on flights from Sofia to Philadelphia. Tuesday is the cheapest departure day at $826 round-trip on average, while Thursday is the most expensive at $1,225, a difference of $399.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Sofia to Philadelphia?
Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time at 12h 12m, compared with 12h 47m via Amsterdam Schiphol (AMS) and 15h 40m via Frankfurt am Main (FRA).
What is the time difference between Sofia and Philadelphia?
Philadelphia is 6 hours behind Sofia (Eastern Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Philadelphia?
Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square and Philadelphia Stadium. These are among the most viewed places in Philadelphia on KAYAK.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Thursday. On this route, Tuesday flights average $826, about $399 less than Thursday fares (33% savings) based on the last 12 months.
If you can choose when to travel, plan your Sofia to Philadelphia trip for March. Fares historically average $693 round-trip in that month - typically $532 less than the most expensive month, which is May (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Philadelphia Airport.

• Microtel Inn & Suites by Wyndham Philadelphia Airport
• Sonesta Select Philadelphia Airport
• Embassy Suites by Hilton Philadelphia Airport

More options for your flight from Sofia to Philadelphia

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Return flight

Complete your trip to Philadelphia with a hotel stay or car rental

Car rentals in Philadelphia

Hotels in Philadelphia

Vacations in Philadelphia

SOF - PHL

$582 Find Cheap Flights from Sofia to Philadelphia - Compare and Save

Everything you should know

Cheap Flights from Sofia to Philadelphia (SOF-PHL)

Recent round-trip flight deals from Sofia to Philadelphia

Recent one-way flight deals from Sofia to Philadelphia

Recent last minute flight deals from Sofia to Philadelphia

Price, demand and travel trends for Sofia to Philadelphia flights

How much is a round-trip flight from Sofia to Philadelphia?

Which airline is the cheapest to fly from Sofia to Philadelphia?

What’s the most popular layover airport when flying from Sofia to Philadelphia?

What is the cheapest layover airport when flying from Sofia to Philadelphia?

When flying from Sofia to Philadelphia which airport offers the shortest layover?

Key details for Sofia to Philadelphia flights

Low season

High season

Cheapest flight

When to book flights from Sofia to Philadelphia

Your Sofia to Philadelphia flight questions, answered

Your guide to booking Sofia to Philadelphia flights

More options for your flight from Sofia to Philadelphia

Complete your trip to Philadelphia with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Sofia to Philadelphia

Find direct flights to and from Sofia and Philadelphia

Flights from domestic origins to Philadelphia

Flights to other popular destinations

Find deals for your return flight