$476 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 7/30. 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.
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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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Flights Deals

Best Pennsylvania Flight Deals from Sofia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Philadelphia
Philadelphia1 stop$550
New York
New York1 stop$542
Philadelphia
Philadelphia1 stop$550
New York
New York1 stop$542

Cheap Flight Deals from Sofia to Pennsylvania (SOF-USPA)

 
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.

Recent round-trip flight deals from Sofia to Pennsylvania

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Sofia to Pennsylvania.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
7:00 am - 3:35 pmSOF-IAD
15h 35m1 stop
 Logo
6:30 pm - 2:00 pmIAD-SOF
12h 30m1 stop
Wed, Sep 17 - Thu, Oct 16
KLM Logo
7:00 am - 3:35 pmSOF-IAD
15h 35m1 stop
KLM Logo
5:35 pm - 2:00 pmIAD-SOF
13h 25m1 stop
$525KLM
Find Deal
Thu, Oct 16 - Sat, Nov 8
British Airways Logo
9:10 pm - 4:25 pmSOF-PHL
26h 15m1 stop
British Airways Logo
7:55 pm - 8:20 pmPHL-SOF
17h 25m1 stop
$550British Airways
Find Deal
Sun, May 11 - Sat, May 24
British Airways Logo
8:00 pm - 11:10 amSOF-JFK
22h 10m1 stop
British Airways Logo
8:55 pm - 8:40 pmJFK-SOF
16h 45m1 stop
$550British Airways
Find Deal
Mon, May 12 - Tue, May 27
Air France Logo
7:00 am - 3:00 pmSOF-EWR
15h 00m1 stop
Air France Logo
5:00 pm - 2:00 pmEWR-SOF
14h 00m1 stop
$564Air France
Find Deal
Thu, May 15 - Thu, May 29
Air France Logo
7:00 am - 7:15 pmSOF-IAD
19h 15m1 stop
Air France Logo
6:30 pm - 2:00 pmIAD-SOF
12h 30m1 stop
$576Air France
Find Deal
Wed, Jun 11 - Wed, Jul 16
United Airlines Logo
6:20 am - 7:39 pmSOF-LGA
20h 19m2 stops
United Airlines Logo
7:29 pm - 6:40 pmLGA-SOF
16h 11m2 stops
$617United Airlines
Find Deal
Tue, May 27 - Tue, Jun 3
United Airlines Logo
6:15 am - 9:05 pmSOF-IAD
21h 50m2 stops
United Airlines Logo
5:40 pm - 12:00 pmIAD-SOF
11h 20m1 stop
$617United Airlines
Find Deal
Wed, Sep 17 - Sat, Oct 18
Lufthansa Logo
6:00 am - 3:20 pmSOF-IAD
16h 20m1 stop
Lufthansa Logo
10:20 pm - 11:00 pmIAD-SOF
17h 40m1 stop
$640Lufthansa
Find Deal
Mon, Jul 7 - Fri, Sep 12
Lufthansa Logo
6:15 am - 3:40 pmSOF-EWR
16h 25m1 stop
Lufthansa Logo
5:00 pm - 1:00 pmEWR-SOF
13h 00m1 stop
$641Lufthansa
Find Deal
Fri, May 16 - Mon, Nov 3
Useful Info

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’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
High seasonApril
Cheapest flight$476
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 14% lower on average.
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.

  • 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.

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 8696 reviews
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

2.0 MediocreBrant, Apr 2025YHZ - EWR
Read more United Airlines reviews

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

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!

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I wasn’t allowed to board with my children. I was charged outrageous costs for basic carry on size luggage. The entertainment screens were outdated and not user friendly.

I was very happy with everything, thank you for the smooth flight ✈️

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

I enjoyed my flight back with Lufthansa because the food was good, and the flight attendants were nice and helped you when you asked a question. The flight attendants always came around and asked if you needed anything which I liked a lot.

Entertainment system is old. Food can be tastier Need to provide toothbrush and toothpaste at least when asked.

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

Information on your arrival and departure airports

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