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Cheap flights from Philadelphia (PHL) to Sofia (SOF) from $672

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — SOF
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
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The best prices from Philadelphia to Sofia are usually found in November or February, booked 60 days in advance, depart on a Monday or Sunday and return on a Wednesday

Cheap flight deals from Philadelphia to Sofia

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 May 4, 2024.

Popular in

June

Cheapest in

November

Average price

$1,270

Round-trip from

$658
High demand for flights, 26% potential price rise
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Best time to find cheap flights, 34% potential price drop
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Average for round-trip flights in May 2024
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From Philadelphia to Sofia
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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 37% on airfare.

Cheap United Airlines flights from Philadelphia to Sofia

Explore cheap flight options specifically provided by United Airlines 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 2,795,183 searches. Data last updated May 4, 2024.
Find some of the cheapest United Airlines flights traveling from Philadelphia to Sofia. Come back soon if you're not finding the exact deal you're looking for.
Tue 10/294:56 pmPHL - SOF
2 stops38h 24mUnited Airlines
Thu 11/72:05 pmSOF - PHL
2 stops17h 27mUnited Airlines
Deal found 5/2$672
Tue 10/296:35 pmPHL - SOF
2 stops41h 15mUnited Airlines
Thu 11/76:25 amSOF - PHL
1 stop16h 45mUnited Airlines
Deal found 5/3$676
Tue 10/294:56 pmPHL - SOF
2 stops38h 24mUnited Airlines
Thu 11/72:05 pmSOF - PHL
2 stops17h 27mUnited Airlines
Deal found 5/3$681
Sun 6/25:35 pmPHL - SOF
1 stop22h 00mUnited Airlines
Tue 7/166:00 amSOF - PHL
2 stops25h 29mUnited Airlines
Deal found 5/3$1,386

Cheap Lufthansa flights from Philadelphia to Sofia

Explore cheap flight options specifically provided by Lufthansa 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 2,795,183 searches. Data last updated May 4, 2024.
Some of the lowest-priced Lufthansa flights we've found at this time heading from Philadelphia to Sofia. Deals are refreshing constantly so come back soon for more options.
Tue 10/296:45 pmPHL - SOF
1 stop17h 05mLufthansa
Thu 11/76:25 amSOF - PHL
1 stop16h 45mLufthansa
Deal found 5/3$796
Tue 10/296:45 pmPHL - SOF
1 stop21h 50mLufthansa
Thu 11/76:25 amSOF - PHL
1 stop16h 45mLufthansa
Deal found 5/2$805
Mon 6/35:35 pmPHL - SOF
1 stop12h 45mLufthansa
Wed 7/106:30 amSOF - PHL
1 stop16h 30mLufthansa
Deal found 5/3$1,390
Wed 6/55:35 pmPHL - SOF
1 stop22h 00mLufthansa
Sat 7/136:30 amSOF - PHL
1 stop16h 30mLufthansa
Deal found 5/3$1,401
Wed 6/55:35 pmPHL - SOF
2 stops22h 25mLufthansa
Sat 7/136:30 amSOF - PHL
1 stop16h 30mLufthansa
Deal found 5/3$1,420
Sat 6/85:35 pmPHL - SOF
1 stop12h 45mLufthansa
Thu 7/116:30 amSOF - PHL
1 stop16h 30mLufthansa
Deal found 5/3$1,440
Sun 6/25:35 pmPHL - SOF
1 stop12h 45mLufthansa
Mon 7/157:30 pmSOF - PHL
2 stops27h 30mLufthansa
Deal found 5/3$1,452
Tue 6/45:35 pmPHL - SOF
1 stop22h 00mLufthansa
Sat 7/136:30 amSOF - PHL
1 stop16h 30mLufthansa
Deal found 5/3$1,459
Tue 6/45:35 pmPHL - SOF
1 stop12h 45mLufthansa
Fri 7/126:45 pmSOF - PHL
1 stop28h 15mLufthansa
Deal found 5/3$1,476

Cheap Philadelphia to Sofia flights in May & June 2024

Find cheap flight options from Philadelphia to Sofia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Prices were last updated on May 4, 2024.
These are some of the best deals we've found on flights to Sofia in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Sat 6/85:30 amPHL - SOF
2 stops48h 10mMultiple Airlines
Thu 7/119:35 amSOF - PHL
1 stop14h 25mMultiple Airlines
Deal found 5/3$1,139
Sat 6/2212:18 pmPHL - SOF
3 stops45h 52mMultiple Airlines
Sat 7/202:05 pmSOF - PHL
2 stops39h 39mMultiple Airlines
Deal found 5/3$1,202
Sun 6/26:30 pmPHL - SOF
1 stop17h 40mBritish Airways
Tue 7/169:15 pmSOF - PHL
1 stop26h 20mBritish Airways
Deal found 5/3$1,339
Sat 6/2212:45 pmPHL - SOF
2 stops27h 50mMultiple Airlines
Sat 7/202:05 pmSOF - PHL
2 stops39h 39mMultiple Airlines
Deal found 5/3$1,341
Mon 6/34:10 pmPHL - SOF
2 stops19h 35mMultiple Airlines
Thu 7/118:00 amSOF - PHL
2 stops20h 34mMultiple Airlines
Deal found 5/3$1,361
Mon 6/34:10 pmPHL - SOF
2 stops19h 35mMultiple Airlines
Tue 7/166:30 amSOF - PHL
2 stops15h 59mMultiple Airlines
Deal found 5/3$1,365
Sun 6/26:15 amPHL - SOF
2 stops29h 30mMultiple Airlines
Thu 7/118:00 amSOF - PHL
2 stops20h 34mMultiple Airlines
Deal found 5/3$1,367
Sun 6/211:15 amPHL - SOF
2 stops17h 55mAir Canada
Wed 7/106:30 amSOF - PHL
2 stops15h 59mAir Canada
Deal found 5/3$1,370
Fri 5/108:59 pmPHL - SOF
3 stops35h 21mMultiple Airlines
Sun 6/306:30 amSOF - PHL
2 stops15h 59mMultiple Airlines
Deal found 5/3$1,373

Philadelphia to Sofia 2024 flight deals

Discover exclusive flight deals for travel between Philadelphia and Sofia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
These are some of the best deals we've found on flights to Sofia in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 10/294:56 pmPHL - SOF
2 stops38h 24mUnited Airlines
Thu 11/72:05 pmSOF - PHL
2 stops17h 27mUnited Airlines
Deal found 5/2$672
Tue 10/296:35 pmPHL - SOF
2 stops41h 15mUnited Airlines
Thu 11/76:25 amSOF - PHL
1 stop16h 45mUnited Airlines
Deal found 5/3$676
Tue 10/294:56 pmPHL - SOF
2 stops38h 24mUnited Airlines
Thu 11/72:05 pmSOF - PHL
2 stops17h 27mUnited Airlines
Deal found 5/3$681
Tue 10/296:45 pmPHL - SOF
1 stop17h 05mLufthansa
Thu 11/76:25 amSOF - PHL
1 stop16h 45mLufthansa
Deal found 5/3$796
Tue 10/296:45 pmPHL - SOF
1 stop21h 50mLufthansa
Thu 11/76:25 amSOF - PHL
1 stop16h 45mLufthansa
Deal found 5/2$805
Sat 6/85:30 amPHL - SOF
2 stops48h 10mMultiple Airlines
Thu 7/119:35 amSOF - PHL
1 stop14h 25mMultiple Airlines
Deal found 5/3$1,139
Mon 7/16:36 pmPHL - SOF
2 stops17h 09mMultiple Airlines
Sun 8/256:00 amSOF - PHL
2 stops40h 29mMultiple Airlines
Deal found 5/3$1,191
Sat 6/2212:18 pmPHL - SOF
3 stops45h 52mMultiple Airlines
Sat 7/202:05 pmSOF - PHL
2 stops39h 39mMultiple Airlines
Deal found 5/3$1,202
Mon 7/17:38 amPHL - SOF
2 stops29h 47mMultiple Airlines
Sun 8/254:05 pmSOF - PHL
3 stops40h 15mMultiple Airlines
Deal found 5/3$1,233

Philadelphia to Sofia flights leaving soon

Find last-minute flight options from Philadelphia to Sofia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
Check out these flights departing soon from Philadelphia to Sofia. To prevent any unwanted surprises, users should verify their flight info before booking.
Fri 5/108:59 pmPHL - SOF
3 stops35h 21mMultiple Airlines
Sun 6/306:30 amSOF - PHL
2 stops15h 59mMultiple Airlines
Deal found 5/3$1,373
Fri 5/107:45 amPHL - SOF
2 stops26h 25mMultiple Airlines
Sun 6/306:30 amSOF - PHL
2 stops15h 59mMultiple Airlines
Deal found 5/3$1,424
Fri 5/108:59 pmPHL - SOF
3 stops35h 21mMultiple Airlines
Sun 6/304:05 pmSOF - PHL
3 stops40h 01mMultiple Airlines
Deal found 5/3$1,472
Fri 5/104:21 pmPHL - SOF
2 stops33h 09mMultiple Airlines
Sun 6/309:00 pmSOF - PHL
1 stop25h 25mMultiple Airlines
Deal found 5/3$1,732
Fri 5/106:30 pmPHL - SOF
1 stop17h 30mBritish Airways
Sun 6/309:00 pmSOF - PHL
1 stop26h 35mBritish Airways
Deal found 5/3$1,817

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 2,795,183 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$672 - $1,709

Route

Depart

Return

Price

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/29

2 stops38h 24m

Sofia

Thu 11/7

2 stops17h 27m

$672

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/29

2 stops41h 15m

Sofia

Thu 11/7

1 stop16h 45m

$676

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/29

2 stops38h 24m

Sofia

Thu 11/7

2 stops17h 27m

$681

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/29

1 stop17h 05m

Sofia

Thu 11/7

1 stop16h 45m

$796

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/29

1 stop21h 50m

Sofia

Thu 11/7

1 stop16h 45m

$805

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 6/8

2 stops48h 10m

Sofia

Thu 7/11

1 stop14h 25m

$1,139

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 7/1

1 stop18h 55m

Sofia

Sun 8/25

1 stop26h 35m

$1,242

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 6/2

2 stops17h 55m

Sofia

Wed 7/10

2 stops15h 59m

$1,370

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 6/4

2 stops14h 45m

Sofia

Sat 7/13

2 stops15h 00m

$1,709

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to book a flight from Philadelphia to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Sofia. Price data was last updated on January 28, 2024.
Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Sofia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Philadelphia to Sofia?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Sofia. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Philadelphia to Sofia flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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 $0 while a round-trip flight costs $1,010. Price data was last updated on April 28, 2024.

Currently, November is the cheapest month in which you can book a flight from Philadelphia to Sofia (average of $658). Flying from Philadelphia to Sofia in June is currently the most expensive (average of $1,353). 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

$661

February

$681

March

$680

April

$781

May

$932

June

$1,353

July

$1,164

August

$948

September

$790

October

$702

November

$658

December

$672

Temperature and rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average temperature and rainfall totals by month.

SOF

Temperature

30.2 - 68 °F

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 May 4, 2024.
Read reviews from past customers who have flown United Airlines, Lufthansa and British Airways from Philadelphia to Sofia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.7
Good
1,075 reviews
Check prices

Crew

8.1

Overall

7.7

Food

6.8

Boarding

7.6

Comfort

7.5

Entertainment

6.9

Reviews

1 / 10

Amazingly smooth and easy check in and boarding process. Food was a bit meh, but everything else was great.

Austrian Airlines
7.7
Good
1,075 reviews
Austrian Airlines
7.7
Good
1,075 reviews
Check prices

Crew

8.1

Overall

7.7

Food

6.8

Boarding

7.6

Comfort

7.5

Entertainment

6.9

Reviews

1 / 10

Amazingly smooth and easy check in and boarding process. Food was a bit meh, but everything else was great.

United Airlines
7.4
Good
11,125 reviews
Austrian Airlines
7.7
Good
1,075 reviews
Check prices

Crew

8.1

Overall

7.7

Food

6.8

Boarding

7.6

Comfort

7.5

Entertainment

6.9

Reviews

1 / 10

Amazingly smooth and easy check in and boarding process. Food was a bit meh, but everything else was great.

Air Canada
7.0
Good
6,904 reviews
Austrian Airlines
7.7
Good
1,075 reviews
Check prices

Crew

8.1

Overall

7.7

Food

6.8

Boarding

7.6

Comfort

7.5

Entertainment

6.9

Reviews

1 / 10

Amazingly smooth and easy check in and boarding process. Food was a bit meh, but everything else was great.

Lufthansa
7.0
Good
7,730 reviews
Austrian Airlines
7.7
Good
1,075 reviews
Check prices

Crew

8.1

Overall

7.7

Food

6.8

Boarding

7.6

Comfort

7.5

Entertainment

6.9

Reviews

1 / 10

Amazingly smooth and easy check in and boarding process. Food was a bit meh, but everything else was great.

British Airways
6.8
Okay
6,874 reviews
Austrian Airlines
7.7
Good
1,075 reviews
Check prices

Crew

8.1

Overall

7.7

Food

6.8

Boarding

7.6

Comfort

7.5

Entertainment

6.9

Reviews

1 / 10

Amazingly smooth and easy check in and boarding process. Food was a bit meh, but everything else was great.

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 $700 on Cheapflights?

    Yes, there are multiple flights from Philadelphia to Sofia for under $700. The cheapest flight booked recently is on United Airlines for just $672, but on average you can expect to pay $1,153.

  • Are there last-minute flights available from Philadelphia to Sofia for under $1,400?

    There are currently 5+ open flights from Philadelphia to Sofia within the next 7 days for less than $1,400.

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

    According to our current data, United Airlines ($672), Lufthansa ($796), and British Airways ($1,242) offers the cheapest pricing from Philadelphia to Sofia. These flights start at 34% lower than the current average price 3 months from now.

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

    When booking a flight from Philadelphia to Sofia, you may want to consider flying on British Airways, Iberia or Lufthansa as they are the most popular for this route.

  • 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.

  • Can I find deals for flights from Philadelphia to Sofia that include extra baggage allowance?

    The amount of baggage you can bring on your Philadelphia to Sofia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Philadelphia to Sofia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Philadelphia to Sofia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Philadelphia to Sofia that allow pets onboard?

    Many airlines flying from Philadelphia to Sofia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Philadelphia to Sofia?

    Yes, you can often find last-minute deals on Philadelphia to Sofia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Philadelphia to Sofia flight deals updated?

    The Philadelphia to Sofia flight deals you see on this page were last updated on 5/3.

See more FAQs

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

Pittsburgh to Sofia flights

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 2,795,183 searches. Data last updated May 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$600Average$917FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$605Average$1,314FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$819Average$1,184FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest$1,314Average$1,328FlexibilityNo cancel feeOn-time77%
Search Iberia flights
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Search flights from Philadelphia to Sofia by cabin class

Find flights from Philadelphia to Sofia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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.

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