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$573+ Cheap flights from Philadelphia (PHL) to Bulgaria

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOF
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Philadelphia to Bulgaria

Keep the following information in mind while searching for Philadelphia to Bulgaria flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$573
(Gotogate)

Popular in

June

Cheapest in

February

Average price

$560
Provider with most accurate pricing for Philadelphia-Sofia flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Sofia flights.
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From Philadelphia to Bulgaria
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($353 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Philadelphia to Bulgaria

Cheapest flights from Philadelphia to Bulgaria
Explore the most affordable flight options available from Philadelphia to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/20. 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.
Mon 3/103:30 pmPHL - SOF
2 stops16h 05mAir Canada
Mon 3/242:20 pmSOF - PHL
2 stops55h 25mAir Canada
Deal found 2/20$573
This Gotogate deal was found by Cheapflights users on 2/20. 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.
Mon 3/103:30 pmPHL - SOF
2 stops16h 05mMultiple Airlines
Mon 3/246:35 pmSOF - PHL
1 stop28h 25mMultiple Airlines
Deal found 2/20$589
This United deal was found by Cheapflights users on 2/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/225:35 pmPHL - SOF
1 stop12h 45mUnited Airlines
Wed 5/76:15 amSOF - PHL
2 stops15h 21mUnited Airlines
Deal found 2/20$805
This Lufthansa deal was found by Cheapflights users on 2/19. 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.
Tue 4/225:35 pmPHL - SOF
1 stop17h 15mLufthansa
Wed 5/76:15 amSOF - PHL
1 stop16h 45mLufthansa
Deal found 2/19$817
This KAYAK deal was found by Cheapflights users on 2/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:50 pmPHL - SOF
2 stops35h 50mAustrian Airlines
Sat 9/136:55 pmSOF - PHL
2 stops34h 33mAustrian Airlines
Deal found 2/18$1,301
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:35 amPHL - VAR
2 stops19h 10mMultiple Airlines
Sat 9/134:00 pmVAR - PHL
2 stops31h 00mMultiple Airlines
Deal found 2/18$1,396

Find flights from Philadelphia to Bulgaria within your budget

Customize your flight search to find flights from Philadelphia to Bulgaria 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 February 20, 2025.

Fly from

Philadelphia

Fly to

Bulgaria

Route

Depart

Return

Price

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 3/10

3:30 pm-1:35 pm

2 stops16h 05m

Sofia

Mon 3/24

2:20 pm-3:45 pm

2 stops55h 25m

$573

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 3/10

3:30 pm-1:35 pm

2 stops16h 05m

Sofia

Mon 3/24

6:35 pm-5:00 pm

1 stop28h 25m

$589

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 4/22

5:35 pm-1:20 pm

1 stop12h 45m

Sofia

Wed 5/7

6:15 am-2:36 pm

2 stops15h 21m

$805

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 4/22

5:35 pm-5:50 pm

1 stop17h 15m

Sofia

Wed 5/7

6:15 am-4:00 pm

1 stop16h 45m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Philadelphia to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Philadelphia 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.

Travel insights for flights from Philadelphia to Bulgaria

Get recent, data-driven insights about flights from Philadelphia to Bulgaria including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Philadelphia to Bulgaria (average of $632). Flying from Philadelphia to Bulgaria in June is currently the most expensive (average of $1,243). 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.

Rainfall in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bulgaria ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bulgaria, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated February 20, 2025.
United Airlines
7.4
Good
8,766 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines
7.4
Good
8,766 reviews
United Airlines
7.4
Good
8,766 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Air Canada
7.0
Good
8,748 reviews
United Airlines
7.4
Good
8,766 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Lufthansa
6.7
Okay
6,984 reviews
United Airlines
7.4
Good
8,766 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Bulgaria. 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 from for flights from Philadelphia to Bulgaria?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Bulgaria.

  • What are the most popular routes from Philadelphia to Bulgaria?

    Most travelers choose Philadelphia - Sofia, Philadelphia - Bourgas or Philadelphia - Varna when deciding on the best route from Philadelphia to Bulgaria.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Bulgaria 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 Philadelphia to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from Philadelphia to Bulgaria (average of $632). Flying from Philadelphia to Bulgaria in June is currently the most expensive (average of $1,243). 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

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Alternative routes for Philadelphia to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Philadelphia to Bulgaria

Discover the top 3 airlines that operate flights from Philadelphia to Bulgaria. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$560Average$844FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$617Average$1,140FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$670Average$998FlexibilityNo cancel feeOn-time69%
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