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Sofia

$367+ Cheap flights from Austin (AUS) to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SOF
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
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Cheap flight deals from Austin to Sofia

Cheapest flights from Austin to Sofia
Explore the most affordable flight options available from Austin to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2026.

This KAYAK deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:55 pm
AUS
-
SOF
1 stop17h 25m
British Airways
Mon 4/278:10 pm
SOF
-
AUS
1 stop27h 15m
British Airways
Deal found 3/21$744
This KAYAK deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:55 pm
AUS
-
SOF
1 stop18h 15m
British Airways
Mon 4/278:10 pm
SOF
-
AUS
1 stop27h 15m
British Airways
Deal found 3/21$794
This KAYAK deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:55 pm
AUS
-
SOF
1 stop18h 15m
British Airways
Sun 4/269:05 pm
SOF
-
AUS
1 stop26h 20m
British Airways
Deal found 3/21$844
This Booking.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:08 pm
AUS
-
SOF
2 stops44h 22m
British Airways
Wed 4/299:25 pm
SOF
-
AUS
1 stop31h 10m
British Airways
Deal found 3/20$884
This oojo deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:15 am
AUS
-
SOF
2 stops26h 00m
Turkish Airlines
Thu 9/179:35 am
SOF
-
AUS
2 stops21h 38m
Turkish Airlines
Deal found 3/21$888
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/192:10 pm
AUS
-
SOF
2 stops24h 50m
United Airlines
Tue 4/282:10 pm
SOF
-
AUS
2 stops29h 53m
United Airlines
Deal found 3/21$913
This Lufthansa deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:05 pm
AUS
-
SOF
1 stop13h 20m
Lufthansa
Wed 4/296:20 am
SOF
-
AUS
1 stop15h 40m
Lufthansa
Deal found 3/20$924
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:15 pm
AUS
-
SOF
2 stops26h 45m
United Airlines
Mon 4/2712:55 pm
SOF
-
AUS
2 stops39h 48m
United Airlines
Deal found 3/21$927

Find flight deals from Austin to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$744
(KAYAK)

One-way from

$367
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$543
Provider with most accurate pricing for Austin Bergstrom-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Sofia flights.
Search Deals
From Austin Bergstrom to Sofia
Search Deals
One-way flight from Austin Bergstrom to Sofia
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($290 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Austin to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 4/18

5:55 pm-8:10 pm

1 stop18h 15m

Sofia

Mon 4/27

8:10 pm-3:25 pm

1 stop27h 15m

$794

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 4/13

4:08 pm-8:30 pm

2 stops44h 22m

Sofia

Wed 4/29

9:25 pm-8:35 pm

1 stop31h 10m

$884
Quickest round-trip

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 4/13

4:05 pm-1:25 pm

1 stop13h 20m

Sofia

Wed 4/29

6:20 am-2:00 pm

1 stop15h 40m

$924

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Wed 9/2

10:15 am-8:15 pm

2 stops26h 00m

Sofia

Thu 9/17

9:35 am-8:38 am

2 stops31h 03m

$924

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 4/19

12:15 pm-11:00 pm

2 stops26h 45m

Sofia

Mon 4/27

12:55 pm-8:43 pm

2 stops39h 48m

$927

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 6/7

7:15 am-6:40 pm

2 stops27h 25m

Sofia

Thu 6/18

6:30 am-10:46 pm

2 stops24h 16m

$951

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 4/13

5:47 pm-6:40 pm

2 stops16h 53m

Sofia

Thu 4/30

6:30 am-9:24 pm

2 stops22h 54m

$953

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 4/18

4:43 pm-6:40 pm

2 stops17h 57m

Sofia

Tue 4/28

6:10 am-7:59 pm

2 stops21h 49m

$965

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 4/18

4:43 pm-6:40 pm

2 stops17h 57m

Sofia

Mon 4/27

6:20 am-9:15 pm

2 stops22h 55m

$1,015
Cheapest one-way

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Wed 4/15

8:35 am-12:25 am

3 stops55h 50m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Austin to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Sofia in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Austin to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Sofia

What is the cheapest month to book a flight from Austin to Sofia?

Currently, April is the cheapest month in which you can book a flight from Austin to Sofia (average of $537). Flying from Austin to Sofia in June is currently the most expensive (average of $992). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Austin to Sofia?

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated March 25, 2026.
Peruse reviews from past customers who have flown with United Airlines and Lufthansa from Austin to Sofia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,477 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,477 reviews
United Airlines
7.4
Good
9,477 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,867 reviews
United Airlines
7.4
Good
9,477 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Austin to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Austin to Sofia?

    There are many flights that can get you from Austin to Sofia in 13h 20m. Fly via British Airways, United Airlines, or Lufthansa to get the fastest option. Airlines will cover a distance of 6162 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Austin to Sofia round-trip?

    United Airlines, at $600, was found to be the cheapest airline from Austin to Sofia. An alternate airline flying to your destination would be Lufthansa. United Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Austin to Sofia that include hotel bookings?

    Yes. In addition to deals on Austin to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Sofia.

  • Can I find deals for business class flights from Austin to Sofia?

    Yes. Cheapflights offers flight deals from Austin to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Sofia?

    Currently, April is the cheapest month in which you can book a flight from Austin to Sofia (average of $537). Flying from Austin to Sofia in June is currently the most expensive (average of $992). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
Sofia car rentals
Sofia Airport car rentals
Plovdiv Airport car rentals

Top 2 airlines flying from Austin to Sofia

Discover the top 2 airlines that operate flights from Austin to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$600Average$1,260FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$614Average$862FlexibilityNo cancel feeOn-time76%

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