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$658+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — PHL
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This Travelocity deal was found by Cheapflights users on 11/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amSOF - PHL
1 stop17h 05mLufthansa
Thu 12/45:40 pmPHL - SOF
1 stop22h 05mLufthansa
Deal found 11/11$658
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:35 pmSOF - PHL
2 stops30h 32mUnited Airlines
Thu 12/43:05 pmPHL - SOF
2 stops24h 40mUnited Airlines
Deal found 11/12$664
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amSOF - PHL
2 stops15h 47mMultiple Airlines
Thu 12/47:50 amPHL - SOF
2 stops33h 05mMultiple Airlines
Deal found 11/11$677
This SWISS deal was found by Cheapflights users on 11/12. 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.
Thu 11/274:00 pmSOF - PHL
2 stops36h 21mSWISS
Thu 12/41:15 pmPHL - SOF
3 stops62h 00mSWISS
Deal found 11/12$688
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Tue 12/236:00 amSOF - PHL
2 stops24h 30mUnited Airlines
Sun 1/46:00 amPHL - SOF
2 stops22h 50mUnited Airlines
Deal found 11/13$705
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Wed 12/242:25 pmSOF - PHL
1 stop32h 40mUnited Airlines
Sun 1/46:00 amPHL - SOF
2 stops22h 50mUnited Airlines
Deal found 11/13$715

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 November 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$658
(Travelocity)

Popular in

November

Cheapest in

March

Average price

$986
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. 12% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 13, 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

Thu 11/27

6:00 am-4:05 pm

1 stop17h 05m

Philadelphia

Thu 12/4

5:40 pm-10:45 pm

1 stop22h 05m

$658

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 1/8

6:00 am-4:05 pm

1 stop17h 05m

Philadelphia

Thu 1/15

3:30 pm-1:50 pm

2 stops15h 20m

$660

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 11/27

6:00 am-3:51 pm

2 stops40h 51m

Philadelphia

Thu 12/4

5:40 pm-10:45 pm

1 stop22h 05m

$664

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 11/27

2:35 pm-2:07 pm

2 stops30h 32m

Philadelphia

Thu 12/4

3:05 pm-10:45 pm

2 stops24h 40m

$664

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 5/6

9:30 pm-4:40 pm

1 stop26h 10m

Philadelphia

Sun 5/10

6:45 pm-7:10 pm

1 stop17h 25m

$683

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 11/27

4:00 pm-9:21 pm

2 stops36h 21m

Philadelphia

Thu 12/4

1:15 pm-10:15 am

3 stops62h 00m

$688

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 12/24

6:10 am-11:30 pm

2 stops24h 20m

Philadelphia

Sun 1/4

6:00 am-11:50 am

2 stops22h 50m

$705

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Tue 12/23

6:00 am-11:30 pm

2 stops24h 30m

Philadelphia

Sun 1/4

6:00 am-11:50 am

2 stops22h 50m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

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 November 13, 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 November 13, 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
9,017 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,017 reviews
United Airlines
7.4
Good
9,017 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,572 reviews
United Airlines
7.4
Good
9,017 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 . The distance between Bulgaria and Philadelphia is about 4800 mi.

  • 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
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester
Exton

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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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$588Average$755FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$636Average$775FlexibilityNo cancel feeOn-time76%

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