$440 Cheap Flights from Greensboro (GSO) to Sofia (SOF)

View $440 flight on Sat, Mar 21, 2026Opens in a new window

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

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Cheap Flights from Greensboro to Sofia (GSO-SOF)

Prices were available within the past 7 days and start at $440 for one-way flights and $545 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Jan 21 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$545 Roundtrip, found 3 days ago
$545
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Jan 21 from Greensboro to Sofia, returning Sun, Feb 1, priced at $545 found 3 days ago
Lufthansa
Wed, Jan 21 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$550 Roundtrip, found 3 days ago
$550
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Jan 21 from Greensboro to Sofia, returning Sun, Feb 1, priced at $550 found 3 days ago
Lufthansa
Tue, Jan 20 - Tue, Jan 27
GSO
Greensboro
SOF
Sofia
$552 Roundtrip, found 3 days ago
$552
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, Jan 20 from Greensboro to Sofia, returning Tue, Jan 27, priced at $552 found 3 days ago
Lufthansa
Wed, Jan 21 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$557 Roundtrip, found 3 days ago
$557
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Jan 21 from Greensboro to Sofia, returning Sun, Feb 1, priced at $557 found 3 days ago
Lufthansa
Wed, Jan 21 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$561 Roundtrip, found 3 days ago
$561
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Jan 21 from Greensboro to Sofia, returning Sun, Feb 1, priced at $561 found 3 days ago
Lufthansa
Wed, Jan 21 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$562 Roundtrip, found 3 days ago
$562
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Jan 21 from Greensboro to Sofia, returning Sun, Feb 1, priced at $562 found 3 days ago
Lufthansa
Tue, Jan 20 - Tue, Jan 27
GSO
Greensboro
SOF
Sofia
$564 Roundtrip, found 3 days ago
$564
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, Jan 20 from Greensboro to Sofia, returning Tue, Jan 27, priced at $564 found 3 days ago
Austrian Airlines
Wed, Jan 21 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$571 Roundtrip, found 3 days ago
$571
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Wed, Jan 21 from Greensboro to Sofia, returning Sun, Feb 1, priced at $571 found 3 days ago
Virgin Atlantic
Tue, Jan 27 - Sun, Feb 1
GSO
Greensboro
SOF
Sofia
$1,192 Roundtrip, found 1 day ago
$1,192
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Tue, Jan 27 from Greensboro to Sofia, returning Sun, Feb 1, priced at $1,192 found 1 day ago
British Airways
Sat, Mar 21 - Thu, Mar 26
GSO
Greensboro
SOF
Sofia
$1,196 Roundtrip, found 20 hours ago
$1,196
Roundtrip
found 20 hours ago
Select British Airways flight, departing Sat, Mar 21 from Greensboro to Sofia, returning Thu, Mar 26, priced at $1,196 found 20 hours ago
Flights from Greensboro (GSO) to Sofia (SOF)
Origin airport
Piedmont Triad Intl.
Destination airport
Sofia
Roundtrip price
$545
Distance
5166 mi

Greensboro to Sofia Flights

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

 

The best time to book a flight from Greensboro to Sofia

Sunday is one of the best days to book for cheap flights from Greensboro 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 Greensboro 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 Greensboro to Sofia in 2026. You can also book with separate airlines for your outbound and return journeys, from $440 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 Greensboro 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 Greensboro 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 Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF) cost?
Get a cheap one-way flight from $440 or cheap return flight from $545 from Piedmont Triad Intl. Airport (GSO) 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 Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF)?
The cheapest month to fly from GSO to SOF is January, when demand is low. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GSO to SOF. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF)?
Direct flights from Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GSO to SOF?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change depending 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 Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF)?
Choose a flight from Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF) that takes off before 3 PM to reduce the likelihood of delays and cancellations. 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 Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF) last-minute?
Booking your ticket from GSO to SOF just before your trip is generally more expensive. However, if you're flexible with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a GSO to SOF flight and hotel package?
Opting for a GSO to SOF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our extensive range of accommodations and then add flights, activities and car rentals 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 Piedmont Triad Intl. Airport (GSO) to Sofia Airport (SOF)?
Typically, you can cancel or modify your GSO to SOF flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further details, visit our Customer Service portal.

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*Available to One Key members.