Cheap flights from Philadelphia to Sofia from $429
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 11/3. 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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Lufthansa flights from Philadelphia to Sofia
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Fly from
Fly to
Route
Depart
Return
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Tue 1/5
5:40 pm-1:25 pm
1 stop12h 45m
Sofia
Fri 1/15
2:10 pm-10:56 pm
2 stops15h 46m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Tue 10/20
7:30 pm-11:15 pm
2 stops20h 45m
Sofia
Tue 11/3
6:25 am-4:05 pm
1 stop16h 40m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Tue 11/24
6:35 pm-8:10 pm
1 stop18h 35m
Sofia
Wed 12/2
9:05 pm-4:15 pm
1 stop26h 10m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Mon 10/19
3:08 pm-12:10 pm
2 stops14h 02m
Sofia
Thu 11/5
6:25 am-4:05 pm
1 stop16h 40m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Mon 10/19
6:15 am-12:10 pm
2 stops22h 55m
Sofia
Tue 11/3
6:25 am-4:05 pm
1 stop16h 40m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Wed 11/25
3:20 pm-1:15 pm
2 stops14h 55m
Sofia
Tue 12/1
2:10 pm-10:56 pm
2 stops15h 46m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Mon 10/19
5:40 pm-1:25 pm
1 stop12h 45m
Sofia
Tue 11/3
6:25 am-4:05 pm
1 stop16h 40m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Wed 10/21
11:05 am-10:20 am
2 stops16h 15m
Sofia
Thu 11/5
4:15 pm-9:38 pm
2 stops36h 23m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Tue 11/24
5:40 pm-6:10 pm
1 stop17h 30m
Sofia
Tue 12/1
6:25 am-4:05 pm
1 stop16h 40m
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Mon 10/19
5:40 pm-1:25 pm
1 stop12h 45m
Sofia
Mon 11/2
2:10 pm-4:05 pm
1 stop32h 55m
See travel insights to Sofia from
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 typical price of a round-trip flight between Philadelphia and Sofia?
Prices are currently typical for flights on this route.
Typical prices usually range from $517 to $812.The lowest price recently found on this route was $703.
What is the cheapest month to fly to Sofia?
The cheapest month to fly to Sofia from Philadelphia is in November. Flight prices, which tend to average around $540, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Sofia from Philadelphia during March instead. Flights to Sofia in March, while not as cheap as those in November, still average around $546.
Can stopping save me money on Philadelphia to Sofia flights?
You could potentially save up to 44% 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 and Air Canada are the most popular carriers operating from Philadelphia to Sofia
What airlines fly to Sofia?
Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Sofia from Philadelphia according to our data. Lufthansa is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 11 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
Frequently asked questions about flying 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 14h 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 2 as of October 2026.
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 70% of the total bookings. Other popular airlines include United Airlines with 30%.
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 $511 | Free Cancellation | Rating 6.8 8,271 reviews | |||
| PriceFrom $540 | Free Cancellation | Rating 7.4 10,319 reviews |
Traveling to a place near Sofia?
Book flights to Sofia if you plan to visit one of these locationsWhy use momondo?
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.