$363 Cheap Flights from Buffalo (BUF) to Sofia (SOF)

View $363 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF)

Cheap Flights from Buffalo to Sofia (BUF-SOF)

Prices were available within the past 7 days and start at $363 for one-way flights and $613 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 31 - Tue, Jan 13
BUF
Buffalo
SOF
Sofia
$613 Roundtrip, found 6 days ago
$613
Roundtrip
found 6 days ago
Select United flight, departing Wed, Dec 31 from Buffalo to Sofia, returning Tue, Jan 13, priced at $613 found 6 days ago
United
Sun, Dec 28 - Tue, Jan 13
BUF
Buffalo
SOF
Sofia
$615 Roundtrip, found 14 hours ago
$615
Roundtrip
found 14 hours ago
Select United flight, departing Sun, Dec 28 from Buffalo to Sofia, returning Tue, Jan 13, priced at $615 found 14 hours ago
Lufthansa
Tue, Dec 9 - Tue, Jan 13
BUF
Buffalo
SOF
Sofia
$616 Roundtrip, found 2 days ago
$616
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Dec 9 from Buffalo to Sofia, returning Tue, Jan 13, priced at $616 found 2 days ago
United
Sun, Dec 28 - Tue, Jan 13
BUF
Buffalo
SOF
Sofia
$616 Roundtrip, found 14 hours ago
$616
Roundtrip
found 14 hours ago
Select United flight, departing Sun, Dec 28 from Buffalo to Sofia, returning Tue, Jan 13, priced at $616 found 14 hours ago
United
Tue, Nov 18 - Tue, Nov 25
BUF
Buffalo
SOF
Sofia
$620 Roundtrip, found 1 day ago
$620
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 18 from Buffalo to Sofia, returning Tue, Nov 25, priced at $620 found 1 day ago
Lufthansa
Tue, Dec 9 - Tue, Jan 13
BUF
Buffalo
SOF
Sofia
$620 Roundtrip, found 2 days ago
$620
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Dec 9 from Buffalo to Sofia, returning Tue, Jan 13, priced at $620 found 2 days ago
United
Sat, Dec 27 - Thu, Jan 15
BUF
Buffalo
SOF
Sofia
$621 Roundtrip, found 19 hours ago
$621
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Dec 27 from Buffalo to Sofia, returning Thu, Jan 15, priced at $621 found 19 hours ago
Austrian Airlines
Tue, Dec 9 - Tue, Jan 13
BUF
Buffalo
SOF
Sofia
$622 Roundtrip, found 2 days ago
$622
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Tue, Dec 9 from Buffalo to Sofia, returning Tue, Jan 13, priced at $622 found 2 days ago
American Airlines
Mon, Dec 29 - Wed, Jan 14
BUF
Buffalo
SOF
Sofia
$663 Roundtrip, found 14 hours ago
$663
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Mon, Dec 29 from Buffalo to Sofia, returning Wed, Jan 14, priced at $663 found 14 hours ago
British Airways
Sun, Dec 28 - Wed, Jan 14
BUF
Buffalo
SOF
Sofia
$688 Roundtrip, found 14 hours ago
$688
Roundtrip
found 14 hours ago
Select British Airways flight, departing Sun, Dec 28 from Buffalo to Sofia, returning Wed, Jan 14, priced at $688 found 14 hours ago

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 $799
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $799
Flights from Buffalo (BUF) to Sofia (SOF)
Origin airport
Buffalo Niagara Intl.
Destination airport
Sofia
Airlines serving
Air France, American Airlines, Austrian Airlines, British Airways, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Turkish Airlines, United
Roundtrip price
$613
Distance
4808 mi

Buffalo to Sofia Flights

The cheapest times to fly from Buffalo 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 Buffalo to Sofia are during the month of December. You can find some of the cheapest flights from Buffalo to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Sofia

Sunday is one of the best days to book for cheap flights from Buffalo 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 Buffalo 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 Buffalo to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $363 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 Buffalo 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 Buffalo 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.

 

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF) cost?
Lock in a cheap one-way flight from $363 or cheap return flight from $613 from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF)?
December is the cheapest month to fly from BUF to SOF. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF)?
To find the cheapest airline flying from BUF to SOF, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF)?
You'll need to catch a flight with a layover if you're traveling from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BUF to SOF?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF)?
To reach Sofia Airport (SOF) without delays, opt for a flight that takes off from Buffalo Niagara Intl. Airport (BUF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF) last-minute?
Waiting until just before your trip to book a flight from BUF to SOF generally means paying more. While you might find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for the best chance of snagging a bargain.
Is it cheaper to book a BUF to SOF flight and hotel package?
Booking a BUF to SOF flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Sofia Airport (SOF)?
You can usually reschedule or cancel your BUF to SOF flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.