$325 Find Cheap Flights from Sofia to Pennsylvania

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 9/14. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Pennsylvania

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Pennsylvania, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Pennsylvania, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Sofia to Pennsylvania

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Philadelphia
Philadelphia1 stop$573
New York
New York2 stops$489
Philadelphia
Philadelphia1 stop$573
New York
New York2 stops$489

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

Thu, Sep 11 - Tue, Sep 23
 Logo
6:45 am - 10:15 pmSOF-JFK
22h 30m2 stops
 Logo
12:15 am - 11:55 pmJFK-SOF
16h 40m1 stop
Thu, Sep 4 - Wed, Sep 17
 Logo
7:00 am - 3:35 pmSOF-IAD
15h 35m1 stop
 Logo
6:30 pm - 2:00 pmIAD-SOF
12h 30m1 stop
Fri, Sep 5 - Fri, Nov 14
KLM Logo
7:00 am - 3:35 pmSOF-IAD
15h 35m1 stop
KLM Logo
6:05 pm - 2:05 pmIAD-SOF
13h 00m1 stop
$498KLM
Find Deal
Thu, Sep 4 - Wed, Sep 17
KLM Logo
7:00 am - 5:05 pmSOF-DCA
17h 05m2 stops
KLM Logo
2:50 pm - 2:00 pmDCA-SOF
16h 10m2 stops
$513KLM
Find Deal
Sun, Oct 19 - Fri, Oct 24
Turkish Airlines Logo
9:25 am - 7:45 pmSOF-IAD
17h 20m1 stop
Turkish Airlines Logo
1:30 pm - 2:45 pmIAD-SOF
18h 15m1 stop
$548Turkish Airlines
Find Deal
Mon, Sep 8 - Mon, Sep 22
United Airlines Logo
6:15 am - 8:05 pmSOF-EWR
20h 50m1 stop
United Airlines Logo
6:00 pm - 5:50 pmEWR-SOF
16h 50m1 stop
$561United Airlines
Find Deal
Mon, Sep 8 - Mon, Sep 22
United Airlines Logo
6:15 am - 8:05 pmSOF-JFK
20h 50m1 stop
United Airlines Logo
9:50 pm - 5:50 pmJFK-SOF
13h 00m1 stop
$561United Airlines
Find Deal
Tue, Nov 11 - Sun, Nov 16
Lufthansa Logo
6:00 am - 2:00 pmSOF-EWR
15h 00m1 stop
Lufthansa Logo
5:15 pm - 1:10 pmEWR-SOF
12h 55m1 stop
$573Lufthansa
Find Deal
Thu, Sep 4 - Mon, Sep 8
Lufthansa Logo
6:15 am - 4:00 pmSOF-PHL
16h 45m1 stop
Lufthansa Logo
5:35 pm - 5:50 pmPHL-SOF
17h 15m1 stop
$573Lufthansa
Find Deal
Sun, Sep 14 - Sat, Sep 20
Turkish Airlines Logo
9:15 pm - 10:35 pmSOF-EWR
32h 20m1 stop
Turkish Airlines Logo
12:30 am - 8:35 amEWR-SOF
25h 05m1 stop
$580Turkish Airlines
Find Deal
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.

How much is a round-trip flight from Sofia to Pennsylvania?

What’s the cheapest day of the week to fly from Sofia to Pennsylvania?

The average price of all round-trip flights from Sofia to Pennsylvania clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Pennsylvania on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Sofia to Pennsylvania. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.


Good to know

Low seasonFebruary
Cheapest flight$325
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Sofia to New York John F Kennedy 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.

  • What is the cheapest time of day to fly to Pennsylvania?

    The cheapest time of day to fly to Pennsylvania is generally at night, when round-trip flights cost $651 on average. The most expensive time of day to fly to Pennsylvania is generally in the morning, which is peak travel time and where the average cost of a ticket is $742.

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 8904 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

The food and sitting need improvements. They were extremely bad.. If you choose to recline, there is no room for the passenger behind you. This is one of the worst sitting arrangements that I ever experience. The aircraft was not properly clean before boarding.

4.0 OkayAnonymous, Aug 2025FRA - MCO
Read more United Airlines reviews

The food and sitting need improvements. They were extremely bad.. If you choose to recline, there is no room for the passenger behind you. This is one of the worst sitting arrangements that I ever experience. The aircraft was not properly clean before boarding.

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Not good , late, and long. We came home so late and spent so much time flying around and taxiing

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Ok. Get a different kosher caterer. The food was odd.

Food was terrible. Crew was kind but skipped over my row for providing sandwiches and beverages.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Liked the flight being almost on time (airport issues created a delay). Disliked the issue printing tag bags on the kiosk and having to wait for an hour on like to drop my bags.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

The flight crew was friendly and accommodating. I witnessed one of the flight attendants deal with a difficult flyer with extreme calm and compassion. I was so annoyed with the passenger and so impressed by the flight attendant. His quick action de-escalated what could have been a major incident. He was awesome.

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

I was told in Florence my bag would go directly to Indianapolis. I had to wait to get it. Then security in EWR was slow so I missed my flight as United would not allow me on the plane even though it was still on the tarmac and the door to the tunnel was open. I blame both Lufthansa and United for refusing to allow me on board a plane that was clearly still on the tarmac. Behind me two grandparents and their ten year old grandson were on same flight from Munich to EWR. They were refused to board the United flight. So we had to sit for 12 hours in airport until next flight. No compensation has been offered either by Lufthansa or United.

Flight was delayed and luggage was delivered day after arrival. In Bilbao they told me day after would be delivered faster if I went to Bilbao to get my own bags so I did. Wasted my morning.

Seating was average for a first class seat. It very modern. I expected better.

very small seats screen did not work . I could not watch anything for 9 hours

The food that was served was superb!!! Awesome snacks!!! Frequent drink service!!! To me, this was shocking. I took a British Airways flight from Denver to London for the first leg of my trip and the food was horrendous. Thank you for keeping us fed and satiated on such a long flight!!!!

The seating arrangement by having privacy screens would have been more appealing. If you sit in the business class, you pay for extra comfort and privacy. Other than that, the service was excellent and the staff very professional.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.