Cheap flights from Philadelphia to Sofia from $454
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Sofia departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Philadelphia to Sofia
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Lufthansa flights from Philadelphia to Sofia
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How to get the cheapest flight ticket from Philadelphia to Sofia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Sofia?
The cheapest month to fly to Sofia from Philadelphia is in February. Flight prices, which tend to average around $560, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Sofia from Philadelphia during November instead. Flights to Sofia in November, while not as cheap as those in February, still average around $617.
What is the cheapest day to depart on your flight to Sofia?
According to our data, Tuesday is the cheapest day to fly to Sofia from Philadelphia. The lowest ticket price found for a Tuesday departure recently was $741. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Philadelphia to Sofia on a Saturday will generally be more expensive and average around $1,491. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Sofia?
In the evening is the cheapest time of day to fly from Philadelphia to Sofia when you can find flight prices for as low as $838. Flying to Sofia in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Sofia, so prices are often more expensive at around $1,318 per ticket.
Can stopping save me money on Philadelphia to Sofia flights?
You could potentially save up to 55% on your flight if you consider stops on a Philadelphia to Sofia flight.
What is the cheapest airline that flies from Philadelphia to Sofia?
Lufthansa is the most popular carrier operating from Philadelphia to Sofia
What airlines fly to Sofia?
United Airlines, Lufthansa and Austrian Airlines are the top three most popular airlines that fly to Sofia from Philadelphia according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 7 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.
When to book flights from Philadelphia to Sofia
Cheap Philadelphia to Sofia (PHL to SOF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Sofia
How far is Philadelphia to Sofia by plane?
Sofia is 4789.3 mi away from Philadelphia. In terms of flight time, this usually takes a little over 11h 55m.
When did momondo last update prices for flights from Philadelphia Airport to Sofia Airport?
Prices for flights from Philadelphia Airport to Sofia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Philadelphia Airport to Sofia Airport?
The number of operators available for flights from Philadelphia Airport to Sofia Airport is 3 as of July 2025.
How old do you have to be to fly from Philadelphia Airport to Sofia Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The travel and health documents required for your trip to Sofia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sofia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Philadelphia to Sofia?
Based on momondo bookings for flights between Philadelphia and Sofia, the leading airline is Lufthansa, making up 72% of the total bookings. Other popular airlines include United Airlines with 20% and British Airways with 8%.
Best airlines flying from Philadelphia to Sofia
Compare and see reviews for airlines that fly from Philadelphia to Sofia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $560 | Free Cancellation | Rating 6.6 7,103 reviews | |||
| PriceFrom $617 | Free Cancellation | Rating 6.8 7,193 reviews | |||
| PriceFrom $646 | Free Cancellation | Rating 7.4 8,843 reviews |
Traveling to a place near Sofia?
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Why should I use momondo to find a flight deal from Philadelphia to Sofia?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Sofia. momondo saves you time and could save you money on your trip.
Can I find flights from Philadelphia to Sofia with flexible booking policies on momondo?
momondo does allow users to show only those flights to Sofia from Philadelphia which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Philadelphia to Sofia?
Once you have performed a search for Philadelphia to Sofia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Philadelphia to Sofia right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Sofia from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.