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Bulgaria

$512+ Cheap flights from Austin (AUS) to Bulgaria

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SOF
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Find flight deals from Austin to Bulgaria

Cheapest flights from Austin to Bulgaria
Explore the most affordable flight options available from Austin to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This Mytrip deal was found by Cheapflights users on 10/12. 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.
Sun 11/94:10 pmAUS - SOF
1 stop13h 25mMultiple Airlines
Sun 11/236:10 amSOF - AUS
2 stops23h 07mMultiple Airlines
Deal found 10/12$512
This Mytrip deal was found by Cheapflights users on 10/13. 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.
Thu 11/2711:30 amAUS - SOF
2 stops18h 20mMultiple Airlines
Thu 12/46:00 amSOF - AUS
1 stop16h 15mMultiple Airlines
Deal found 10/13$518
This Orbitz deal was found by Cheapflights users on 10/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:30 amAUS - SOF
2 stops22h 50mMultiple Airlines
Thu 12/116:00 amSOF - AUS
1 stop16h 15mMultiple Airlines
Deal found 10/14$527
This Air France deal was found by Cheapflights users on 10/13. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:05 pmAUS - SOF
1 stop36h 00mKLM
Thu 12/47:00 amSOF - AUS
1 stop17h 10mKLM
Deal found 10/13$534
This Air France deal was found by Cheapflights users on 10/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:05 pmAUS - SOF
1 stop36h 00mKLM
Thu 12/117:00 amSOF - AUS
1 stop17h 10mKLM
Deal found 10/14$535
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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.
Sun 11/94:10 pmAUS - SOF
1 stop13h 25mLufthansa
Sun 11/236:10 amSOF - AUS
1 stop16h 05mLufthansa
Deal found 10/12$536
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/94:10 pmAUS - SOF
1 stop13h 25mUnited Airlines
Sun 11/236:10 amSOF - AUS
1 stop16h 05mUnited Airlines
Deal found 10/12$541
This United Airlines deal was found by Cheapflights users on 10/13. 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 11/277:10 amAUS - SOF
2 stops31h 35mUnited Airlines
Thu 12/46:00 amSOF - AUS
2 stops17h 45mUnited Airlines
Deal found 10/13$542
This KLM deal was found by Cheapflights users on 10/12. 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.
Wed 12/1011:36 amAUS - SOF
2 stops18h 29mKLM
Tue 12/237:00 amSOF - AUS
2 stops19h 20mKLM
Deal found 10/12$549

Cheap flight deals from Austin to Bulgaria

Keep the following information in mind while searching for Austin to Bulgaria flight deals. Data was last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$512
(Mytrip)

Popular in

June

Cheapest in

August

Average price

$942
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 Bulgaria
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($318 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 October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Bulgaria 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 October 14, 2025.
Use the filters below to find and compare flights from Austin to Bulgaria that are best for you.

Fly from

Austin

Fly to

Bulgaria

Route

Depart

Return

Price

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 11/9

4:10 pm-1:35 pm

1 stop13h 25m

Sofia

Sun 11/23

6:10 am-9:17 pm

2 stops23h 07m

$512

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 11/27

11:30 am-1:50 pm

2 stops18h 20m

Sofia

Thu 12/4

6:00 am-2:15 pm

1 stop16h 15m

$518

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 11/24

11:30 am-6:20 pm

2 stops22h 50m

Sofia

Thu 12/11

6:00 am-2:15 pm

1 stop16h 15m

$527

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 11/27

6:05 pm-2:05 pm

1 stop36h 00m

Sofia

Thu 12/4

7:00 am-4:10 pm

1 stop17h 10m

$534

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 11/24

6:05 pm-2:05 pm

1 stop36h 00m

Sofia

Thu 12/11

7:00 am-4:10 pm

1 stop17h 10m

$535

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 11/9

4:10 pm-1:35 pm

1 stop13h 25m

Sofia

Sun 11/23

6:10 am-2:15 pm

1 stop16h 05m

$536

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Sun 11/9

4:10 pm-1:35 pm

1 stop13h 25m

Sofia

Sun 11/23

6:10 am-2:15 pm

1 stop16h 05m

$541

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Thu 11/27

7:10 am-10:45 pm

2 stops31h 35m

Sofia

Thu 12/4

6:00 am-3:45 pm

2 stops17h 45m

$542

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 11/24

11:30 am-6:20 pm

2 stops22h 50m

Sofia

Thu 12/11

6:00 am-8:31 am

3 stops34h 31m

$613

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Fri 3/27

1:05 pm-10:45 pm

2 stops26h 40m

Sofia

Tue 3/31

1:50 pm-11:55 am

2 stops30h 05m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Best time to book a flight from Austin to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria 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 Bulgaria

What is the cheapest time of day to fly from AUS to BG?

Find hourly flight availability from Austin to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

When flying from Austin to Bulgaria, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 28% versus a flight in the afternoon.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated October 14, 2025.
See what other customers who have flown with United Airlines and Lufthansa from Austin to Bulgaria have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,976 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,976 reviews
United Airlines
7.4
Good
8,976 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,489 reviews
United Airlines
7.4
Good
8,976 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

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

  • What airport do you fly from for flights from Austin to Bulgaria?

    Austin Bergstrom (AUS) is the airport you will fly out of if you book a flight from Austin to Bulgaria. It is only a 7.5 mi journey to Austin Bergstrom (AUS) from Austin’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Austin to Bulgaria 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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Top 2 airlines flying from Austin to Bulgaria

Discover the top 2 airlines that operate flights from Austin to Bulgaria. 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$639Average$968FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$927Average$1,086FlexibilityNo cancel feeOn-time69%

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