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Sofia

$527+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SOF
Dec 16 — Dec 231
Tue 12/16
Tue 12/23
1 adult, Economy
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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 November 16, 2025.

This United Airlines deal was found by Cheapflights users on 11/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:50 pmAUS - SOF
2 stops22h 55mUnited Airlines
Sat 12/202:25 pmSOF - AUS
2 stops39h 00mUnited Airlines
Deal found 11/15$1,274
This Ovago deal was found by Cheapflights users on 11/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:14 pmAUS - SOF
2 stops17h 01mLufthansa
Sat 12/207:05 pmSOF - AUS
1 stop27h 10mLufthansa
Deal found 11/15$1,369
This Mytrip deal was found by Cheapflights users on 11/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:30 amAUS - SOF
3 stops29h 40mMultiple Airlines
Sat 12/209:40 pmSOF - AUS
3 stops32h 17mMultiple Airlines
Deal found 11/15$1,490
This KLM deal was found by Cheapflights users on 11/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:05 pmAUS - SOF
1 stop36h 00mKLM
Sat 12/207:00 amSOF - AUS
1 stop17h 10mKLM
Deal found 11/15$3,487

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 November 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$527
(FlightHub)

Popular in

June

Cheapest in

March

Average price

$1,050
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. 26% potential increase in price ($356 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 16, 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

Sun 1/11

5:06 pm-6:20 pm

2 stops17h 14m

Sofia

Mon 1/19

6:10 am-11:30 pm

2 stops25h 20m

$527

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Tue 1/20

10:46 am-1:55 pm

2 stops19h 09m

Sofia

Thu 1/29

7:00 am-4:10 pm

1 stop17h 10m

$533

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Tue 1/20

9:50 am-6:20 pm

2 stops24h 30m

Sofia

Thu 1/29

6:05 am-7:17 pm

2 stops21h 12m

$537

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Tue 1/20

5:30 am-1:15 pm

3 stops23h 45m

Sofia

Thu 1/29

2:35 pm-12:19 pm

2 stops29h 44m

$540

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Tue 1/20

5:30 am-1:45 pm

3 stops24h 15m

Sofia

Thu 1/29

6:05 am-8:30 am

3 stops34h 25m

$565

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 1/11

1:05 pm-6:20 pm

2 stops21h 15m

Sofia

Mon 1/19

1:45 pm-12:19 pm

3 stops30h 34m

$800

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Fri 3/27

7:00 am-6:20 pm

2 stops28h 20m

Sofia

Tue 3/31

2:00 pm-12:00 pm

2 stops30h 00m

$890

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 1/11

1:05 pm-6:20 pm

2 stops21h 15m

Sofia

Mon 1/19

1:45 pm-12:19 pm

3 stops30h 34m

$975

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice 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.

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 November 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Austin to Sofia by exploring options for tickets in the evening.

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 November 16, 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
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,016 reviews
United Airlines
7.4
Good
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,574 reviews
United Airlines
7.4
Good
9,016 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 17h 14m. Fly via Lufthansa 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 36% 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 November 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$639Average$968FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$927Average$1,087FlexibilityNo cancel feeOn-time69%

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