$335 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 11/13. 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

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
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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
Philadelphia2 stops$707
New York
New York1 stop$537
Philadelphia
Philadelphia2 stops$707
New York
New York1 stop$537

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

Tue, Nov 11 - Tue, Dec 9
Multiple Airlines Logo
7:00 am - 4:05 pmSOF-IAD
16h 05m1 stop
Multiple Airlines Logo
6:50 pm - 1:55 pmIAD-SOF
12h 05m1 stop
$553Multiple Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 23
KLM Logo
7:00 am - 4:05 pmSOF-IAD
16h 05m1 stop
KLM Logo
6:05 pm - 2:05 pmIAD-SOF
13h 00m1 stop
$558KLM
Find Deal
Fri, Dec 19 - Fri, Jan 16
Air France Logo
7:00 am - 4:35 pmSOF-IAD
16h 35m1 stop
Air France Logo
6:50 pm - 1:55 pmIAD-SOF
12h 05m1 stop
$559Air France
Find Deal
Mon, Nov 17 - Sun, Nov 30
LOT Logo
2:35 pm - 8:35 pmSOF-JFK
13h 00m1 stop
LOT Logo
10:35 pm - 5:50 pmJFK-SOF
12h 15m1 stop
$597LOT
Find Deal
Mon, Nov 17 - Sun, Nov 30
LOT Logo
2:35 pm - 8:35 pmSOF-JFK
13h 00m1 stop
LOT Logo
10:35 pm - 5:50 pmJFK-SOF
12h 15m1 stop
$599LOT
Find Deal
Thu, Nov 13 - Tue, Nov 25
Lufthansa Logo
2:35 pm - 8:25 pmSOF-EWR
12h 50m1 stop
Lufthansa Logo
7:30 pm - 1:45 pmEWR-SOF
11h 15m1 stop
$640Lufthansa
Find Deal
Mon, Nov 17 - Sun, Nov 30
Lufthansa Logo
2:20 pm - 8:25 pmSOF-EWR
13h 05m1 stop
Lufthansa Logo
5:15 pm - 1:00 pmEWR-SOF
12h 45m1 stop
$641Lufthansa
Find Deal
Mon, Dec 22 - Thu, Jan 15
Air France Logo
7:00 am - 7:15 pmSOF-IAD
19h 15m1 stop
Air France Logo
6:50 pm - 1:55 pmIAD-SOF
12h 05m1 stop
$646Air France
Find Deal
Mon, Nov 10 - Mon, Nov 24
United Airlines Logo
6:10 am - 2:00 pmSOF-EWR
14h 50m1 stop
United Airlines Logo
5:15 pm - 1:15 pmEWR-SOF
13h 00m1 stop
$659United Airlines
Find Deal
Mon, Nov 10 - Mon, Dec 8
United Airlines Logo
2:20 pm - 8:15 pmSOF-IAD
12h 55m1 stop
United Airlines Logo
10:55 pm - 10:45 pmIAD-SOF
16h 50m1 stop
$659United 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.

What is the cheapest month to fly from Sofia to Pennsylvania?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to Pennsylvania, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sofia to Pennsylvania is March, when tickets cost $581 (return) on average. On the other hand, the most expensive months are November and July, when the average cost of round-trip tickets is $986 and $814 respectively.

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 seasonSeptember
Cheapest flight$335
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 10% increase in price.
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 8999 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

10.0 ExcellentDr. Joseph, Oct 2025STL - ORD
Read more United Airlines reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Excellent all round, first time flying United. App is very helpful.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

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

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