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Sofia

$582+ Cheap flights from Austin (AUS) to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SOF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$582
(Air Canada)

Popular in

June

Cheapest in

August

Average price

$786
From Austin Bergstrom to Sofia
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($304 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/81:05 pmAUS - SOF
3 stops40h 30mAir Canada
Wed 11/196:10 amSOF - AUS
2 stops23h 07mAir Canada
Deal found 9/15$582
This oojo deal was found by Cheapflights users on 9/15. 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.
Sat 11/85:42 pmAUS - SOF
2 stops38h 38mBritish Airways
Wed 11/199:00 pmSOF - AUS
1 stop27h 50mBritish Airways
Deal found 9/15$594
This Sembo deal was found by Cheapflights users on 9/17. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:59 pmAUS - SOF
2 stops36h 36mMultiple Airlines
Sat 11/87:05 pmSOF - AUS
2 stops34h 12mMultiple Airlines
Deal found 9/17$646
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 11/15:34 pmAUS - SOF
2 stops46h 11mUnited Airlines
Sat 11/82:25 pmSOF - AUS
1 stop31h 50mUnited Airlines
Deal found 9/17$656
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1910:00 amAUS - SOF
2 stops28h 50mMultiple Airlines
Fri 10/247:25 pmSOF - AUS
2 stops51h 50mMultiple Airlines
Deal found 9/15$802
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:55 pmAUS - SOF
2 stops22h 05mMultiple Airlines
Sun 11/302:00 pmSOF - AUS
2 stops54h 19mMultiple Airlines
Deal found 9/14$853
This Ovago deal was found by Cheapflights users on 9/14. 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 10/110:15 pmAUS - SOF
1 stop31h 15mBritish Airways
Sun 11/302:30 pmSOF - AUS
1 stop34h 20mBritish Airways
Deal found 9/14$1,019
This KLM deal was found by Cheapflights users on 9/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:05 pmAUS - SOF
1 stop36h 00mKLM
Sat 11/87:00 amSOF - AUS
1 stop17h 10mKLM
Deal found 9/17$1,133

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 September 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

Sat 11/8

1:05 pm-1:35 pm

2 stops40h 30m

Sofia

Wed 11/19

6:10 am-9:17 pm

2 stops23h 07m

$582

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 11/8

5:42 pm-4:20 pm

2 stops38h 38m

Sofia

Wed 11/19

9:00 pm-4:50 pm

1 stop27h 50m

$594

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 11/1

5:59 pm-1:35 pm

2 stops36h 36m

Sofia

Sat 11/8

7:05 pm-9:17 pm

2 stops34h 12m

$646

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 11/1

5:34 pm-10:45 pm

2 stops46h 11m

Sofia

Sat 11/8

2:25 pm-2:15 pm

1 stop31h 50m

$656

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 10/19

10:00 am-10:50 pm

2 stops28h 50m

Sofia

Fri 10/24

7:25 pm-3:15 pm

2 stops51h 50m

$802

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 11/8

1:05 pm-1:35 pm

3 stops40h 30m

Sofia

Wed 11/19

2:00 pm-12:19 pm

3 stops30h 19m

$844

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Wed 10/1

4:55 pm-11:00 pm

2 stops22h 05m

Sofia

Sun 11/30

2:00 pm-12:19 pm

2 stops54h 19m

$853

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Wed 10/1

10:15 pm-1:30 pm

1 stop31h 15m

Sofia

Sun 11/30

2:30 pm-4:50 pm

1 stop34h 20m

$1,019

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sat 11/1

7:05 pm-2:05 pm

1 stop36h 00m

Sofia

Sat 11/8

7:00 am-4:10 pm

1 stop17h 10m

$1,133

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 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 September 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
8,924 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Lufthansa
6.8
Okay
7,407 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 38h 38m. Fly via British Airways or United Airlines 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?

    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 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, 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 $1,183). 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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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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Hobby to Sofia flights
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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$639Average$968FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$927Average$1,086FlexibilityNo cancel feeOn-time69%

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