$534 Cheap Flights from Sofia (SOF) to Greensboro (GSO)

View $534 flight on Wed, Jul 8, 2026Opens in a new window

Popular airlines from Sofia Airport (SOF) to Piedmont Triad Intl. Airport (GSO)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Sofia to Greensboro (SOF-GSO)

Prices were available within the past 7 days and start at $534 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad Intl.) cost?
You can find cheap one-way flights from $534 and cheap return flights Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad Intl.) with Expedia. Roundtrip flights usually range from $845 to $4791. 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 Greensboro, NC (GSO-Piedmont Triad 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
The cheapest month to fly from SOF to GSO is 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
Enter SOF to GSO 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
KLM is one of the cheapest airlines offering connecting flights from Sofia (SOF) to Greensboro, NC (GSO) with a layover in Schiphol (AMS), starting from around $807. 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
To find a cheap flight from Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad 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 Greensboro, NC (GSO-Piedmont Triad 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
The earliest flight from Sofia (SOF) to Greensboro (GSO) usually leaves at around 6:00 AM, operated by Lufthansa and United. This service is seasonal and active in January, making it a great option for early risers looking to maximize their day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
The most popular departure times for flights from Sofia (SOF) to Greensboro (GSO) are in the early morning, from 6am to 9am. About 69% of passengers prefer this time window. Many major carriers, including Bulgaria Air and Lufthansa, offer flights during this window. This timing works well because it allows travelers to maximize their day upon arrival.
How long does it take to fly from Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
A flight from SOF to GSO with a layover takes around 21 hours 50 minutes, with the route covering approximately 5,167 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
Select the "Business class" and "First class" filters when looking for SOF to GSO 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 Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad Intl.) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad 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 Greensboro from SOF (SOF)?
From SOF (SOF), you can fly typically into Piedmont Triad Intl. (GSO) to reach Greensboro. Some flights may connect through major hubs like Schiphol (AMS), Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC) before reaching Greensboro. 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 Greensboro, NC (GSO-Piedmont Triad Intl.) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad 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 Greensboro, NC (GSO-Piedmont Triad Intl.) flight and hotel package?
Securing a Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad Intl.) Greensboro 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 Greensboro, NC (GSO-Piedmont Triad Intl.)?
If you booked your Sofia (SOF) to Greensboro, NC (GSO-Piedmont Triad 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
Piedmont Triad Intl.
Distance
5166 mi

Book with confidence

Sofia to Greensboro Flights

The cheapest times to fly from Sofia to Greensboro

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

 

The best time to book a flight from Sofia to Greensboro

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

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 Greensboro in 2026. You can also book with separate airlines for your outbound and return journeys, from $534 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 Greensboro 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 Greensboro 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 Greensboro Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia