$509 Cheap Flights from Sofia (SOF) to Buffalo (BUF)

View $509 flight on Wed, Oct 7, 2026Opens in a new window

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

Cheap Flights from Sofia to Buffalo (SOF-BUF)

Prices were available within the past 7 days and start at $509 for one-way flights and $848 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$848 Roundtrip, found 1 day ago
$848
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $848 found 1 day ago
Lufthansa
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$849 Roundtrip, found 1 day ago
$849
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $849 found 1 day ago
Lufthansa
Sat, Jun 6 - Tue, Jul 7
SOF
Sofia
BUF
Buffalo
$850 Roundtrip, found 3 days ago
$850
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sat, Jun 6 from Sofia to Buffalo, returning Tue, Jul 7, priced at $850 found 3 days ago
Lufthansa
Sat, Jun 6 - Tue, Jul 7
SOF
Sofia
BUF
Buffalo
$851 Roundtrip, found 3 days ago
$851
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sat, Jun 6 from Sofia to Buffalo, returning Tue, Jul 7, priced at $851 found 3 days ago
Swiss International Air Lines
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$856 Roundtrip, found 1 day ago
$856
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $856 found 1 day ago
Swiss International Air Lines
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$857 Roundtrip, found 1 day ago
$857
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $857 found 1 day ago
Lufthansa
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$860 Roundtrip, found 1 day ago
$860
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $860 found 1 day ago
United
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$871 Roundtrip, found 1 day ago
$871
Roundtrip
found 1 day ago
Select United flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $871 found 1 day ago
LOT-Polish Airlines
Tue, May 12 - Tue, May 26
SOF
Sofia
BUF
Buffalo
$1,092 Roundtrip, found 1 day ago
$1,092
Roundtrip
found 1 day ago
Select LOT-Polish Airlines flight, departing Tue, May 12 from Sofia to Buffalo, returning Tue, May 26, priced at $1,092 found 1 day ago
Air France
Sat, Jun 6 - Tue, Jul 7
SOF
Sofia
BUF
Buffalo
$1,102 Roundtrip, found 3 days ago
$1,102
Roundtrip
found 3 days ago
Select Air France flight, departing Sat, Jun 6 from Sofia to Buffalo, returning Tue, Jul 7, priced at $1,102 found 3 days ago

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Frequently asked questions

How much does a flight from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $509 and cheap return flights from $848 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights typically cost between $822 and $3342. 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The cheapest month to fly from SOF to BUF is May 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Enter SOF to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Lufthansa, Bulgaria Air and United are just some of the carriers that fly from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.), 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Sofia (SOF) to Buffalo Niagara International Airport (BUF) typically departs at 5:00 AM, operated by Air Serbia and JetBlue Airways. This seasonal service is available in August, allowing you to start your travels early and enjoy a full day upon arrival. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The busiest day for flights from (SOF) to Buffalo Niagara Intl. (BUF) is a Monday, with around 28 flights. This gives you plenty of options for your travel plans. Major airlines on this route include Lufthansa, Bulgaria Air, and Austrian Airlines.
What are the most popular departure times for flights from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from Sofia (SOF) to Buffalo (BUF) are in the early morning, from 6am to 9am. About 36% of passengers prefer this time window. Many major carriers, including Lufthansa, United and Air France, offer flights during this window. This timing works well because it lets you maximize your day upon arrival in Buffalo.
How long does it take to fly from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
A flight from SOF to BUF with a layover takes around 24 hours, with the route 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You can fly business class between SOF and BUF. Airlines that offer business class service on this route include:

  • Bulgaria Air
  • Turkish Airlines
  • Qatar Airways
  • British Airways

How do I earn miles on a Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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.
What airports do you fly into for Buffalo from SOF (SOF)?
If you're planning to travel to Buffalo from SOF (SOF), you can fly typically into Buffalo Niagara Intl. (BUF) Some flights may connect through major hubs like Franz Josef Strauss Intl. (MUC), Roissy-Charles de Gaulle (CDG), Frankfurt Intl. (FRA) before reaching Buffalo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo 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 Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Sofia (SOF) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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.

Travel information

Origin airport
Sofia
Destination airport
Buffalo Niagara Intl.
Roundtrip price
$847
Distance
4808 mi

Book with confidence

Sofia to Buffalo Flights

The cheapest times to fly from Sofia to Buffalo

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

 

The best time to book a flight from Sofia to Buffalo

Sunday is one of the best days to book for cheap flights from Sofia to Buffalo: 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 Sofia to Buffalo

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 Sofia to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $509 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 Sofia to Buffalo 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 Sofia to Buffalo 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.

 

Sofia to Buffalo Flights

*Flight schedules are subject to change.

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*Available to One Key members.