$330 Find Cheap Flights from Sofia to Pennsylvania - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Pennsylvania departing on 9/13. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Sofia to Pennsylvania

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Philadelphia
Philadelphia1 stop$779
New York
New York1 stop$486
Philadelphia
Philadelphia1 stop$779
New York
New York1 stop$486

Book Cheap Sofia to Pennsylvania Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Pennsylvania that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sofia to Pennsylvania

Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
6:45 pm - 10:00 pm
SOF
-
JFK
34h 15m
1 stop
Multiple Airlines Logo
11:50 pm - 1:35 am
JFK
-
SOF
18h 45m
1 stop
$486Multiple Airlines
Mon, Oct 12 - Sun, Oct 18
Multiple Airlines Logo
7:30 pm - 10:30 pm
SOF
-
JFK
34h 00m
1 stop
Multiple Airlines Logo
12:30 am - 12:10 am
JFK
-
SOF
16h 40m
1 stop
$510Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
2:30 pm - 10:30 pm
SOF
-
JFK
15h 00m
1 stop
Multiple Airlines Logo
12:30 am - 11:35 pm
JFK
-
SOF
16h 05m
1 stop
$522Multiple Airlines
Wed, Nov 18 - Fri, Nov 27
Turkish Airlines Logo
4:00 pm - 11:45 am
SOF
-
IAD
26h 45m
1 stop
Turkish Airlines Logo
9:20 pm - 11:05 am
IAD
-
SOF
30h 45m
1 stop
$633Turkish Airlines
Wed, Nov 18 - Fri, Nov 27
Turkish Airlines Logo
4:00 pm - 11:45 am
SOF
-
IAD
26h 45m
1 stop
Turkish Airlines Logo
9:20 pm - 11:05 am
IAD
-
SOF
30h 45m
1 stop
$647Turkish Airlines
Thu, Sep 10 - Thu, Oct 15
Air France Logo
5:00 am - 4:05 pm
SOF
-
IAD
18h 05m
2 stops
Air France Logo
6:15 pm - 8:05 pm
IAD
-
SOF
18h 50m
2 stops
$765Air France
Thu, Aug 27 - Thu, Sep 10
Lufthansa Logo
6:30 am - 1:35 pm
SOF
-
IAD
14h 05m
1 stop
Lufthansa Logo
10:20 pm - 11:15 pm
IAD
-
SOF
17h 55m
1 stop
$766Lufthansa
Thu, Aug 13 - Wed, Aug 19
Lufthansa Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
Lufthansa Logo
5:40 pm - 1:25 pm
PHL
-
SOF
12h 45m
1 stop
$779Lufthansa
Wed, Jul 29 - Sun, Sep 27
United Airlines Logo
6:20 am - 4:05 pm
SOF
-
PHL
16h 45m
1 stop
United Airlines Logo
10:40 am - 6:40 pm
PHL
-
SOF
25h 00m
2 stops
$782United Airlines
Wed, Jul 29 - Sun, Sep 27
United Airlines Logo
6:20 am - 4:05 pm
SOF
-
PHL
16h 45m
1 stop
United Airlines Logo
5:40 pm - 6:10 pm
PHL
-
SOF
17h 30m
1 stop
$784United Airlines
Booking Insights

KAYAK's insights & trends for Sofia to Pennsylvania flights

Get data-powered insights and trends into flights from Sofia to Pennsylvania to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sofia to Pennsylvania?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Sofia to Pennsylvania were found on LOT ($683) and Turkish Airlines ($746).

Good to know

Cheapest flight

$330
Flight from Sofia to Newark Liberty Airport

FAQs - booking Pennsylvania flights

  • How does KAYAK find such low prices on flights from Sofia to Pennsylvania?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sofia to Pennsylvania.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sofia to Pennsylvania?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sofia to Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sofia to Pennsylvania?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Sofia to Pennsylvania with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia to Pennsylvania?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sofia to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sofia to Pennsylvania

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Pennsylvania. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia to Pennsylvania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10011 reviews
7.1Entertainment
8.1Crew
6.7Food
7.7Boarding
7.3Comfort
Airline reviews

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

2.0 MediocreHarry, Apr 2026
IAD - PIT
Read more United Airlines reviews

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Short flight, crew and staff very efficient. Over all good flight experience.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

Inoperable monitor left no entertainment for 9 hours. The crew was not helpful. Food was awful.

I was not aware that I have to pay for the checked bag on the return flight. It was included in the price when I bought the ticket

I still prefer Delta, but Delta doesn’t fly to State College PA.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Nothing bad to say about the actual crew or airline. It was nice to have a complimentary FULL can of soda, as well as a snack. Blankets and earbuds were also provided at no cost for this red eye flight. I especially appreciated the free WiFi and movie selection with the Bluetooth option. It helped the flight pass more quickly. No matter who you fly, boarding and disembarking are always SUCH a pain. As I mentioned, this is on the passengers and not the crew!!

Flight attendants rude and impolite… flight delayed by almost 5 hours.

Ok so apparently the new policy on United Airlines is that customers in the main cabin should NEVER be served more than once and besides picking up trash there should NEVER be another interaction with the customer for any reason.

Original Lufthansa flights were canceled and the alternative route that was offered required cab transfer in New York from JFK to Newark at my own expense. Who can refund these $218?

flight was packed, had to check my carryon bag, tiny snack bag offered, but we arrived on time and thats what counts

Expect Business Class seating to be 2 passengers per 3 coach seats, with center blocked. This is typical for flights within Europe on most airlines. Service was excellent!

They gave us chocolates twice (for whoever would like an extra chocolate - kids did!). I asked for an extra water, and I was given one. Crew was very friendly!

My mother is 87 years old and has knee problems. I have reserved a wheelchair indicating that she is immobile. For her it is very difficult to walk short distances. On arrival in Frankfurt, I was called via my mother's phone, by the female employee who had my mother in a wheelchair. She asked me how many and what color suitcases she has, which I explained. I was very surprised when 15 minutes later my mother walked out with her cane and balancing with great difficulties assisted by a young couple who were pushing her suitcase. Where was the wheelchair and the airport employee? I find this to be a disrespectful and abusive behavior of elderly people. It also raises the question of professional misconduct of the airport personnel in Frankfurt i.e. the female employee who abandoned an 87 year old immobile person by the luggage lane. I would like to inquire about the details i.e. name of that employee.

Crew was nicer to some people than others for no apparent reason. I had to get an older lady’s attention because she was too busy talking to passengers.

The flight was wonderful, especially the special assistance from airplane to airplane!

All flights cancelled with no way to reach the airline

The passenger next to me Goran Goranov (elderly man in his 70s on his way to visit his children and grandchildren in Washington, DC) dropped his neck support pillow while boarding - none of the ground crew helped him. He subsequently lost his green card somewhere on the plane or on his way to the other airplane. I hope he found it. I am worried about him. His son had requested an agent to wait for him at the gate - nobody was there when Mr. Goranov came out of the plane Sofia- Frankfurt. Other passengers had to help him get to the next gate for Washington, DC. I hope Mr. Goranov found his Green card and got safely to Washington, DC to spend time with his family during the holiday season.

J ai resté plus 5heures dans l attente du vol et je n'ai pas pu être à l'aise et le retards d'avion ça me dérange et c'était très dur journée pour moi malheureusement

Everything you need to know for your flight from Sofia to Pennsylvania

Information on your arrival and departure airports