$542 Cheap Flights from Sofia (SOF) to Austin (AUS)

View $542 flight on Mon, Jun 1, 2026Opens in a new window

Popular airlines from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS)

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Cheap Flights from Sofia to Austin (SOF-AUS)

Prices were available within the past 7 days and start at $542 for one-way flights and $868 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, May 25 - Wed, Jun 10
SOF
Sofia
AUS
Austin
$868 Roundtrip, found 7 hours ago
$868
Roundtrip
found 7 hours ago
Select Lufthansa flight, departing Mon, May 25 from Sofia to Austin, returning Wed, Jun 10, priced at $868 found 7 hours ago
Lufthansa
Tue, Jan 20 - Tue, Mar 3
SOF
Sofia
AUS
Austin
$870 Roundtrip, found 13 hours ago
$870
Roundtrip
found 13 hours ago
Select Lufthansa flight, departing Tue, Jan 20 from Sofia to Austin, returning Tue, Mar 3, priced at $870 found 13 hours ago
Lufthansa
Thu, Jan 22 - Thu, Jan 29
SOF
Sofia
AUS
Austin
$871 Roundtrip, found 5 days ago
$871
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jan 22 from Sofia to Austin, returning Thu, Jan 29, priced at $871 found 5 days ago
Lufthansa
Tue, Jan 20 - Wed, Mar 11
SOF
Sofia
AUS
Austin
$871 Roundtrip, found 4 days ago
$871
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 20 from Sofia to Austin, returning Wed, Mar 11, priced at $871 found 4 days ago
Lufthansa
Thu, Jan 22 - Thu, Jan 29
SOF
Sofia
AUS
Austin
$877 Roundtrip, found 5 days ago
$877
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Jan 22 from Sofia to Austin, returning Thu, Jan 29, priced at $877 found 5 days ago
Lufthansa
Tue, Jan 20 - Thu, Mar 5
SOF
Sofia
AUS
Austin
$878 Roundtrip, found 1 day ago
$878
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, Jan 20 from Sofia to Austin, returning Thu, Mar 5, priced at $878 found 1 day ago
British Airways
Sat, Feb 28 - Sat, Mar 7
SOF
Sofia
AUS
Austin
$882 Roundtrip, found 4 days ago
$882
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Feb 28 from Sofia to Austin, returning Sat, Mar 7, priced at $882 found 4 days ago
United
Tue, Jan 20 - Wed, Mar 11
SOF
Sofia
AUS
Austin
$890 Roundtrip, found 4 days ago
$890
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jan 20 from Sofia to Austin, returning Wed, Mar 11, priced at $890 found 4 days ago
Air Canada
Wed, Jan 21 - Wed, Mar 4
SOF
Sofia
AUS
Austin
$893 Roundtrip, found 4 days ago
$893
Roundtrip
found 4 days ago
Select Air Canada flight, departing Wed, Jan 21 from Sofia to Austin, returning Wed, Mar 4, priced at $893 found 4 days ago
KLM
Sat, Apr 18 - Thu, Apr 30
SOF
Sofia
AUS
Austin
$965 Roundtrip, found 9 hours ago
$965
Roundtrip
found 9 hours ago
Select KLM flight, departing Sat, Apr 18 from Sofia to Austin, returning Thu, Apr 30, priced at $965 found 9 hours ago

Frequently asked questions

How much does a flight from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS) cost?
Snag a cheap one-way flight from $542 or cheap return flight from $868 from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS)?
May is the cheapest month to fly from SOF to AUS. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SOF to AUS flight.
How many flights per day from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS)?
Nonstop flights from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SOF to AUS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS)?
To arrive at Austin-Bergstrom Intl. Airport (AUS) on schedule, opt for a flight that leaves Sofia Airport (SOF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Sofia Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS) last-minute?
Last-minute fares from SOF to AUS are generally more expensive. To secure the best prices, start looking for flights well ahead of time. That being said, if your travel plans are flexible, you may score a cheap ticket just before your departure.
Is it cheaper to book a SOF to AUS flight and hotel package?
Booking a SOF to AUS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of stays and then add activities, flights 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 Airport (SOF) to Austin-Bergstrom Intl. Airport (AUS)?
You can usually cancel or reschedule your SOF to AUS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Sofia
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Air Canada, Air France, British Airways, ITA Airways, KLM, Lufthansa, Qatar Airways, Turkish Airlines, United
Roundtrip price
$868
Distance
6165 mi

Book with confidence

Sofia to Austin Flights

The cheapest times to fly from Sofia to Austin

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

 

The best time to book a flight from Sofia to Austin

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

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 Austin in 2026. You can also book with separate airlines for your outbound and return journeys, from $542 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 Austin 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 Austin 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 Austin Flights

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*Available to One Key members.