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Sofia

$564+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SOF
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheap 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 August 17, 2025.

Round-trip from

$874
(Mytrip)

One-way from

$564
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$687
From Austin Bergstrom to Sofia
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One-way flight from Austin Bergstrom to Sofia
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Highest demand for flights based on searches. 23% potential increase in price ($320 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 17, 2025.

This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:45 amAUS - SOF
3 stops28h 10mMultiple Airlines
Tue 10/72:35 pmSOF - AUS
2 stops28h 42mMultiple Airlines
Deal found 8/16$874
This Ovago deal was found by Cheapflights users on 8/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:00 amAUS - SOF
2 stops18h 00mLufthansa
Fri 8/226:15 amSOF - AUS
1 stop16h 05mLufthansa
Deal found 8/17$1,278
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 8/207:00 amAUS - SOF
3 stops22h 15mUnited Airlines
Fri 8/226:15 amSOF - AUS
2 stops23h 05mUnited Airlines
Deal found 8/17$1,431
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/154:05 pmAUS - SOF
1 stop17h 45mLufthansa
Fri 9/196:15 amSOF - AUS
1 stop16h 05mLufthansa
Deal found 8/17$1,541

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 August 17, 2025.
Use the filters below to find and compare flights from Austin to Sofia that are best for you.

Fly from

Austin

Fly to

Sofia

Route

Depart

Return

Price

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Tue 9/30

5:45 am-5:55 pm

3 stops28h 10m

Sofia

Tue 10/7

2:35 pm-11:17 am

2 stops28h 42m

$874

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/15

4:05 pm-10:50 pm

1 stop22h 45m

Sofia

Fri 9/19

6:15 am-2:20 pm

1 stop16h 05m

$1,541

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/15

12:10 pm-12:00 pm

2 stops15h 50m

Sofia

Fri 9/19

6:15 am-9:20 pm

3 stops23h 05m

$1,675

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 8/30

4:36 pm-2:00 pm

3 stops37h 24m

$564

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 8/30

4:05 pm-10:50 pm

1 stop22h 45m

$742

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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 time of day to fly from AUS to SOF?

Find hourly flight availability from Austin to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Austin to Sofia by exploring options for tickets in the evening.

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 August 17, 2025.
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
8,919 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,919 reviews
United Airlines
7.4
Good
8,919 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,325 reviews
United Airlines
7.4
Good
8,919 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

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

    Lufthansa, at $639, was found to be the cheapest airline from Austin to Sofia. An alternate airline flying to your destination would be United Airlines. Lufthansa is priced at 38% 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, November is the cheapest month in which you can book a flight from Austin to Sofia (average of $632). Flying from Austin to Sofia in June is currently the most expensive (average of $1,186). 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

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Alternative routes for Austin to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$639Average$961FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$927Average$1,083FlexibilityNo cancel feeOn-time69%

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