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Sofia

$513+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SOF
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$513
(oojo)

Popular in

June

Cheapest in

March
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
Highest demand for flights based on searches. 23% potential increase in price ($324 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
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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 January 8, 2026.

This oojo deal was found by Cheapflights users on 1/7. 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.
Mon 4/206:46 pmAUS - SOF
2 stops41h 44mBritish Airways
Fri 5/82:20 pmSOF - AUS
2 stops39h 02mBritish Airways
Deal found 1/7$513
This KLM deal was found by Cheapflights users on 1/8. 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.
Mon 4/206:05 pmAUS - SOF
1 stop35h 55mKLM
Fri 5/87:00 amSOF - AUS
2 stops22h 55mKLM
Deal found 1/8$514
This Gotogate deal was found by Cheapflights users on 1/6. 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.
Thu 2/511:30 amAUS - SOF
2 stops17h 45mMultiple Airlines
Thu 2/126:00 amSOF - AUS
1 stop16h 15mMultiple Airlines
Deal found 1/6$518
This FlightHub deal was found by Cheapflights users on 1/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:05 pmAUS - SOF
1 stop13h 15mLufthansa
Fri 5/86:20 amSOF - AUS
1 stop15h 40mLufthansa
Deal found 1/8$533
This FlightHub deal was found by Cheapflights users on 1/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/54:10 pmAUS - SOF
1 stop22h 35mLufthansa
Thu 2/126:00 amSOF - AUS
1 stop16h 15mLufthansa
Deal found 1/6$542
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Thu 3/54:10 pmAUS - SOF
1 stop13h 40mUnited Airlines
Sun 3/86:10 amSOF - AUS
1 stop16h 05mUnited Airlines
Deal found 1/6$544
This Air Canada deal was found by Cheapflights users on 1/8. 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.
Mon 4/209:55 amAUS - SOF
2 stops29h 15mMultiple Airlines
Fri 5/86:20 amSOF - AUS
3 stops36h 33mMultiple Airlines
Deal found 1/8$547
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Thu 3/54:10 pmAUS - SOF
1 stop22h 35mUnited Airlines
Mon 3/92:20 pmSOF - AUS
2 stops28h 59mUnited Airlines
Deal found 1/7$552

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 January 8, 2026.
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

Mon 4/20

6:05 pm-2:00 pm

1 stop35h 55m

Sofia

Fri 5/8

7:00 am-9:55 pm

2 stops22h 55m

$514

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 2/5

11:30 am-1:15 pm

2 stops17h 45m

Sofia

Thu 2/12

6:00 am-2:15 pm

1 stop16h 15m

$518

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 4/20

4:05 pm-1:20 pm

1 stop13h 15m

Sofia

Fri 5/8

6:20 am-2:00 pm

1 stop15h 40m

$533

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 2/5

4:10 pm-10:45 pm

1 stop22h 35m

Sofia

Thu 2/12

6:00 am-2:15 pm

1 stop16h 15m

$542

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 3/5

4:10 pm-1:50 pm

1 stop13h 40m

Sofia

Sun 3/8

6:10 am-2:15 pm

1 stop16h 05m

$544

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 4/20

9:55 am-11:10 pm

2 stops29h 15m

Sofia

Fri 5/8

6:20 am-10:53 am

3 stops36h 33m

$547

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 3/5

4:10 pm-10:45 pm

1 stop22h 35m

Sofia

Mon 3/9

2:20 pm-12:19 pm

2 stops28h 59m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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 January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Austin-Sofia flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 January 8, 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
9,139 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,139 reviews
United Airlines
7.4
Good
9,139 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Lufthansa
6.8
Okay
7,692 reviews
United Airlines
7.4
Good
9,139 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 15m. Fly via KLM 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?

    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.

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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$639Average$896FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$954Average$1,260FlexibilityNo cancel feeOn-time69%

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