$236 Cheap Flights from Buffalo (BUF) to Sofia (SOF)

View $236 flight on Sun, Aug 2, 2026Opens in a new window

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

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Cheap Flights from Buffalo to Sofia (BUF-SOF)

Prices were available within the past 7 days and start at $236 for one-way flights and $547 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Apr 20 - Tue, May 5
BUF
Buffalo
SOF
Sofia
$547 Roundtrip, found 12 hours ago
$547
Roundtrip
found 12 hours ago
Select United flight, departing Mon, Apr 20 from Buffalo to Sofia, returning Tue, May 5, priced at $547 found 12 hours ago
United
Sat, Feb 28 - Tue, Mar 10
BUF
Buffalo
SOF
Sofia
$548 Roundtrip, found 6 days ago
$548
Roundtrip
found 6 days ago
Select United flight, departing Sat, Feb 28 from Buffalo to Sofia, returning Tue, Mar 10, priced at $548 found 6 days ago
United
Sat, Mar 14 - Tue, Mar 24
BUF
Buffalo
SOF
Sofia
$550 Roundtrip, found 6 days ago
$550
Roundtrip
found 6 days ago
Select United flight, departing Sat, Mar 14 from Buffalo to Sofia, returning Tue, Mar 24, priced at $550 found 6 days ago
United
Mon, Mar 9 - Mon, Mar 23
BUF
Buffalo
SOF
Sofia
$559 Roundtrip, found 12 hours ago
$559
Roundtrip
found 12 hours ago
Select United flight, departing Mon, Mar 9 from Buffalo to Sofia, returning Mon, Mar 23, priced at $559 found 12 hours ago
Lufthansa
Wed, Mar 18 - Mon, Mar 23
BUF
Buffalo
SOF
Sofia
$560 Roundtrip, found 4 days ago
$560
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Wed, Mar 18 from Buffalo to Sofia, returning Mon, Mar 23, priced at $560 found 4 days ago
United
Sun, Mar 15 - Wed, Apr 1
BUF
Buffalo
SOF
Sofia
$561 Roundtrip, found 12 hours ago
$561
Roundtrip
found 12 hours ago
Select United flight, departing Sun, Mar 15 from Buffalo to Sofia, returning Wed, Apr 1, priced at $561 found 12 hours ago
United
Sun, Mar 15 - Fri, Apr 3
BUF
Buffalo
SOF
Sofia
$563 Roundtrip, found 12 hours ago
$563
Roundtrip
found 12 hours ago
Select United flight, departing Sun, Mar 15 from Buffalo to Sofia, returning Fri, Apr 3, priced at $563 found 12 hours ago
KLM
Sun, Apr 5 - Wed, Apr 22
BUF
Buffalo
SOF
Sofia
$605 Roundtrip, found 12 hours ago
$605
Roundtrip
found 12 hours ago
Select KLM flight, departing Sun, Apr 5 from Buffalo to Sofia, returning Wed, Apr 22, priced at $605 found 12 hours ago
British Airways
Tue, Aug 11 - Wed, Aug 26
BUF
Buffalo
SOF
Sofia
$617 Roundtrip, found 2 days ago
$617
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Aug 11 from Buffalo to Sofia, returning Wed, Aug 26, priced at $617 found 2 days ago
Turkish Airlines
Thu, Feb 19 - Sat, Mar 7
BUF
Buffalo
SOF
Sofia
$730 Roundtrip, found 6 days ago
$730
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Thu, Feb 19 from Buffalo to Sofia, returning Sat, Mar 7, priced at $730 found 6 days 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 $749
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $749
Flights from Buffalo (BUF) to Sofia (SOF)
Origin airport
Buffalo Niagara Intl.
Destination airport
Sofia
Airlines serving
Air France, Austrian Airlines, British Airways, KLM, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$547
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 April. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $236 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, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) cost?
You can find cheap one-way flights from $236 and cheap return flights from $547 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) with Expedia. Return flights typically cost between $675 and $5238. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
The cheapest month to fly from BUF to SOF is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
Enter BUF to SOF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
Iberia is one of the cheapest airlines offering connecting flights from Buffalo Niagara Intl. (BUF) to Sofia (SOF), with round-trip tickets starting from around $566 with a layover in O'Hare Intl. (ORD). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from BUF to SOF. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Sofia (SOF) are in the early afternoon, from 12pm to 3pm. About 34% of passengers prefer this time window. Many major carriers, including United Airlines and Delta Airlines, offer flights during this window. This timing works well because it allows you to enjoy a relaxed morning before your flight.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
Flights from BUF to SOF with one stop typically take around 19 hours, covering approximately 4,809 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
Select the "Business class" and "First class" filters when looking for BUF to SOF flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) Sofia Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals 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, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sofia (SOF) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

*Flight schedules are subject to change.

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*Available to One Key members.