HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$664+ Cheap flights from Bulgaria to Philadelphia (PHL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — PHL
nov 13 — nov 201
qui 11/13
qui 11/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bulgaria to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Bulgaria to Philadelphia

Cheapest flights from Bulgaria to Philadelphia
Explore the most affordable flight options available from Bulgaria to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on outubro 14, 2025.

This Lufthansa deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/306:00 amSOF - PHL
1 stop17h 05mLufthansa
qui 11/65:40 pmPHL - SOF
1 stop17h 20mLufthansa
Deal found 10/14$664
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/306:00 amSOF - PHL
1 stop17h 05mMultiple Airlines
qui 11/68:00 pmPHL - SOF
2 stops15h 00mMultiple Airlines
Deal found 10/14$669
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/306:00 amSOF - PHL
2 stops33h 46mUnited Airlines
qui 11/63:30 pmPHL - SOF
2 stops19h 30mUnited Airlines
Deal found 10/14$680
This Gotogate deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 12/76:10 amSOF - PHL
2 stops15h 37mMultiple Airlines
dom 12/143:30 pmPHL - SOF
2 stops15h 05mMultiple Airlines
Deal found 10/12$2,728
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 12/72:30 pmSOF - PHL
2 stops27h 32mBritish Airways
dom 12/147:50 pmPHL - SOF
1 stop13h 30mBritish Airways
Deal found 10/12$2,776
This SWISS deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 12/711:00 amSOF - PHL
2 stops60h 05mSWISS
dom 12/141:15 pmPHL - SOF
3 stops22h 05mSWISS
Deal found 10/12$3,641

Cheap flight deals from Bulgaria to Philadelphia

Keep the following information in mind while searching for Bulgaria to Philadelphia flight deals. Data was last updated outubro 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$664
(Lufthansa)

Popular in

November

Cheapest in

March

Average price

$670
Provider with most accurate pricing for Sofia-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Philadelphia flights.
Search Deals
From Bulgaria to Philadelphia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bulgaria to Philadelphia 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 2,558,603 searches. Data last updated outubro 14, 2025.
Use the filters below to find and compare flights from Bulgaria to Philadelphia that are best for you.

Fly from

Bulgaria

Fly to

Philadelphia

Route

Depart

Return

Price

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

qui 10/30

6:00 am-5:05 pm

1 stop17h 05m

Philadelphia

qui 11/6

5:40 pm-6:00 pm

1 stop17h 20m

$664

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

qui 10/30

6:00 am-5:05 pm

1 stop17h 05m

Philadelphia

qui 11/6

8:00 pm-6:00 pm

2 stops15h 00m

$669

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

qui 10/30

6:00 am-9:46 am

2 stops33h 46m

Philadelphia

qui 11/6

3:30 pm-6:00 pm

2 stops19h 30m

$680

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

qui 1/1

2:35 pm-10:46 pm

2 stops15h 11m

Philadelphia

dom 3/1

3:30 pm-6:20 pm

2 stops19h 50m

$1,006

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

qui 1/1

2:35 pm-10:46 pm

2 stops15h 11m

Philadelphia

dom 3/1

3:30 pm-6:20 pm

2 stops19h 50m

$1,008

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

qui 1/1

2:35 pm-10:56 pm

2 stops15h 21m

Philadelphia

dom 3/1

5:40 pm-10:45 pm

1 stop22h 05m

$1,008

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

dom 12/7

6:10 am-2:47 pm

2 stops15h 37m

Philadelphia

dom 12/14

3:30 pm-1:35 pm

2 stops15h 05m

$2,728

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

dom 12/7

2:30 pm-11:02 am

2 stops27h 32m

Philadelphia

dom 12/14

7:50 pm-4:20 pm

1 stop13h 30m

$2,776

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Best time to book a flight from Bulgaria to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Bulgaria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bulgaria to Philadelphia

What is the cheapest month to book a flight from Bulgaria to Philadelphia?

Currently, February is the cheapest month in which you can book a flight from Bulgaria to Philadelphia (average of $521). Flying from Bulgaria to Philadelphia in July is currently the most expensive (average of $612). 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.

What is the cheapest time of day to fly from BG to PHL?

Find hourly flight availability from Bulgaria to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated outubro 14, 2025.

It’s optimal to fly from Bulgaria to Philadelphia at noon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated outubro 14, 2025.
Read through reviews of airlines operating flights from Bulgaria to Philadelphia, such as United Airlines and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,976 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,976 reviews
United Airlines
7.4
Good
8,976 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Lufthansa
6.8
Okay
7,489 reviews
United Airlines
7.4
Good
8,976 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

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

  • What airport do you fly into for flights to Philadelphia from Bulgaria?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from Bulgaria to Philadelphia. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

  • How long is the flight from Bulgaria to Philadelphia?

    Lufthansa and United Airlines can get you from Bulgaria to Philadelphia in just under 17h 05m. Your travel time can differ by up to 16h 41m. The distance between Bulgaria and Philadelphia is about 4800 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Bulgaria to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Bulgaria to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bulgaria to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bulgaria to Philadelphia.

  • Can I find deals for business class flights from Bulgaria to Philadelphia?

    Yes. Cheapflights offers flight deals from Bulgaria to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bulgaria to Philadelphia?

    Currently, February is the cheapest month in which you can book a flight from Bulgaria to Philadelphia (average of $521). Flying from Bulgaria to Philadelphia in July is currently the most expensive (average of $612). 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.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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 Bulgaria to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to John F Kennedy Intl flights
Charles de Gaulle to Newark flights
Orly to Newark flights
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Frankfurt to Newark flights
Orly to John F Kennedy Intl flights
Charles de Gaulle to LaGuardia flights
Gatwick to John F Kennedy Intl flights
Frankfurt to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Bruxelles-National to Newark flights
Frankfurt to LaGuardia flights
Gatwick to Newark flights
Madrid to John F Kennedy Intl flights
London City to John F Kennedy Intl flights
Madrid to Newark flights
Malpensa to Newark flights
Vienna to Newark flights
Barcelona-El Prat to Newark flights
Malpensa to John F Kennedy Intl flights
Bruxelles-National to John F Kennedy Intl flights
Berlin to Newark flights
Stansted to John F Kennedy Intl flights
Leonardo da Vinci/Fiumicino to Newark flights
Munich to John F Kennedy Intl flights
Barcelona-El Prat to John F Kennedy Intl flights
Munich to Newark flights
Luton to John F Kennedy Intl flights
Frederic Chopin to John F Kennedy Intl flights
Amsterdam to John F Kennedy Intl flights
London City to Newark flights
Vienna to John F Kennedy Intl flights
Amsterdam to Newark flights
Beauvais-Tille to Newark flights
Stansted to Newark flights
Leonardo da Vinci/Fiumicino to John F Kennedy Intl flights
Zurich to John F Kennedy Intl flights
Luton to Newark flights
Duesseldorf Intl to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Geneva to John F Kennedy Intl flights
Zurich to Newark flights
Bruxelles-National to LaGuardia flights
Geneva to Newark flights
Athens to Newark flights
Vienna to LaGuardia flights
Duesseldorf Intl to Newark flights

Top 2 airlines flying from Bulgaria to Philadelphia

Discover the top 2 airlines that operate flights from Bulgaria to Philadelphia. 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 2,558,603 searches. Data last updated outubro 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$588Average$755FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$602Average$774FlexibilityNo cancel feeOn-time76%

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.