$354 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Sofia (SOF)

View $354 flight on Tue, Apr 14, 2026Opens in a new window

Popular airlines from Newark Liberty Intl. Airport (EWR) to Sofia Airport (SOF)

Cheap Flights from Newark Liberty Intl. Airport to Sofia (EWR-SOF)

Prices were available within the past 7 days and start at $354 for one-way flights and $387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Apr 29 - Tue, May 5
EWR
New York
SOF
Sofia
$387 Roundtrip, found 8 hours ago
$387
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Wed, Apr 29 from New York to Sofia, returning Tue, May 5, priced at $387 found 8 hours ago
United
Sun, Nov 9 - Thu, Nov 20
EWR
New York
SOF
Sofia
$389 Roundtrip, found 1 day ago
$389
Roundtrip
found 1 day ago
Select United flight, departing Sun, Nov 9 from New York to Sofia, returning Thu, Nov 20, priced at $389 found 1 day ago
United
Mon, Nov 24 - Thu, Dec 4
EWR
New York
SOF
Sofia
$389 Roundtrip, found 2 days ago
$389
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 24 from New York to Sofia, returning Thu, Dec 4, priced at $389 found 2 days ago
United
Wed, Apr 29 - Tue, May 5
EWR
New York
SOF
Sofia
$390 Roundtrip, found 8 hours ago
$390
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Apr 29 from New York to Sofia, returning Tue, May 5, priced at $390 found 8 hours ago
United
Wed, Apr 29 - Tue, May 5
EWR
New York
SOF
Sofia
$391 Roundtrip, found 8 hours ago
$391
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Apr 29 from New York to Sofia, returning Tue, May 5, priced at $391 found 8 hours ago
United
Tue, Nov 11 - Wed, Nov 19
EWR
New York
SOF
Sofia
$392 Roundtrip, found 2 hours ago
$392
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Nov 11 from New York to Sofia, returning Wed, Nov 19, priced at $392 found 2 hours ago
United
Mon, Nov 24 - Wed, Dec 3
EWR
New York
SOF
Sofia
$392 Roundtrip, found 2 days ago
$392
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 24 from New York to Sofia, returning Wed, Dec 3, priced at $392 found 2 days ago
Lufthansa
Wed, Nov 12 - Wed, Nov 19
EWR
New York
SOF
Sofia
$392 Roundtrip, found 1 day ago
$392
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Nov 12 from New York to Sofia, returning Wed, Nov 19, priced at $392 found 1 day ago
Austrian Airlines
Wed, Apr 29 - Tue, May 5
EWR
New York
SOF
Sofia
$395 Roundtrip, found 8 hours ago
$395
Roundtrip
found 8 hours ago
Select Austrian Airlines flight, departing Wed, Apr 29 from New York to Sofia, returning Tue, May 5, priced at $395 found 8 hours ago
British Airways
Sun, Mar 1 - Mon, Mar 9
EWR
New York
SOF
Sofia
$410 Roundtrip, found 14 hours ago
$410
Roundtrip
found 14 hours ago
Select British Airways flight, departing Sun, Mar 1 from New York to Sofia, returning Mon, Mar 9, priced at $410 found 14 hours ago

Find the cheapest month to fly from New York (EWR) to Sofia (SOF)

November is typically the cheapest month to fly

From $391 - $1,115 per traveler.

Alternative airports near Sofia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $568
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $568

Frequently asked questions

How much does a flight from Liberty Intl. Airport (EWR) to Sofia Airport (SOF) cost?
Grab a cheap one-way flight from $354 or cheap return flight from $387 from Liberty Intl. Airport (EWR) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Liberty Intl. Airport (EWR) to Sofia Airport (SOF)?
Planning your getaway for April is a good way to save, as it's the cheapest month for flights between EWR and SOF. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Liberty Intl. Airport (EWR) to Sofia Airport (SOF)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EWR to SOF. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Liberty Intl. Airport (EWR) to Sofia Airport (SOF)?
There are no daily direct flights from Liberty Intl. Airport (EWR) to Sofia Airport (SOF). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from EWR to SOF?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Liberty Intl. Airport (EWR) to Sofia Airport (SOF)?
Book a flight from Liberty Intl. Airport (EWR) to Sofia Airport (SOF) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Liberty Intl. Airport (EWR) to Sofia Airport (SOF) last-minute?
Waiting until just before your trip to book a ticket from EWR to SOF often results in higher prices. While you may find some last-minute deals, there's no guarantee. Be flexible with your travel plans to boost your chances of scoring a bargain.
Is it cheaper to book an EWR to SOF flight and hotel package?
Securing an EWR to SOF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Liberty Intl. Airport (EWR) to Sofia Airport (SOF)?
It's usually possible to reschedule or cancel your EWR to SOF flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Newark Liberty Intl. Airport
Destination airport
Sofia
Airlines serving
Aegean, Air Canada, Air France, Austrian Airlines, British Airways, Emirates, ITA Airways, KLM, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$386
Distance
4724 mi

Book with confidence

Newark Liberty Intl. Airport to Sofia Flights

The cheapest times to fly from Newark Liberty Intl. Airport to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Newark Liberty Intl. Airport to Sofia are during the month of April. You can find some of the cheapest flights from Newark Liberty Intl. Airport to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Newark Liberty Intl. Airport to Sofia

Sunday is one of the best days to book for cheap flights from Newark Liberty Intl. Airport to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Newark Liberty Intl. Airport to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Newark Liberty Intl. Airport to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $354 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Newark Liberty Intl. Airport to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Newark Liberty Intl. Airport to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Newark Liberty Intl. Airport to Sofia Flights

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*Available to One Key members.