$231 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 5/13. 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
Philadelphia1 stop$722
New York
New York1 stop$587
Philadelphia
Philadelphia1 stop$722
New York
New York1 stop$587

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

Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
6:55 pm - 10:30 pm
SOF
-
JFK
34h 35m
1 stop
Multiple Airlines Logo
12:30 am - 11:10 pm
JFK
-
SOF
15h 40m
1 stop
$587Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
Multiple Airlines Logo
6:15 pm - 2:00 pm
IAD
-
SOF
12h 45m
1 stop
$592Multiple Airlines
Wed, Sep 9 - Wed, Dec 9
KLM Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
KLM Logo
5:35 pm - 2:00 pm
IAD
-
SOF
13h 25m
1 stop
$602KLM
Tue, Apr 14 - Wed, Apr 22
KLM Logo
7:00 am - 5:30 pm
SOF
-
DCA
17h 30m
2 stops
KLM Logo
12:59 pm - 2:00 pm
DCA
-
SOF
18h 01m
2 stops
$613KLM
Fri, Apr 17 - Sun, Apr 26
Turkish Airlines Logo
2:05 pm - 10:30 pm
SOF
-
EWR
15h 25m
1 stop
Turkish Airlines Logo
12:25 am - 3:00 pm
EWR
-
SOF
31h 35m
1 stop
$625Turkish Airlines
Thu, Apr 16 - Thu, Apr 30
Turkish Airlines Logo
3:50 pm - 10:30 pm
SOF
-
EWR
13h 40m
1 stop
Turkish Airlines Logo
12:25 am - 3:00 pm
EWR
-
SOF
31h 35m
1 stop
$635Turkish Airlines
Thu, Apr 2 - Thu, Apr 9
Lufthansa Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
Lufthansa Logo
5:40 pm - 1:20 pm
PHL
-
SOF
12h 40m
1 stop
$722Lufthansa
Thu, Apr 2 - Thu, Apr 9
Lufthansa Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
Lufthansa Logo
5:40 pm - 1:20 pm
PHL
-
SOF
12h 40m
1 stop
$729Lufthansa
Thu, Apr 2 - Thu, Apr 9
United Airlines Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
United Airlines Logo
7:45 pm - 6:40 pm
PHL
-
SOF
15h 55m
2 stops
$731United Airlines
Thu, Apr 2 - Thu, Apr 9
United Airlines Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
United Airlines Logo
5:40 pm - 1:20 pm
PHL
-
SOF
12h 40m
1 stop
$732United 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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Sofia to Pennsylvania were found on KLM ($613) and LOT ($628).

Find deals

Good to know

Low seasonSeptember
Cheapest flight$231
Best time to beat the crowds with an average 2% 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.

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 9451 reviews
7.7Boarding
6.6Food
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

4.0 OkayAnonymous, Mar 2026
KIX - SFO
Read more United Airlines reviews

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Terrible experience! delay 2 time and say i dont have ticket

Both my flight where delayed Had 25min to make it to my transfer flight

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

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

Information on your arrival and departure airports

Sofia (SOF)