$523 Find Cheap Flights from Austin to Bulgaria

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Bulgaria departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Austin to Bulgaria Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Bulgaria that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Bulgaria

Mon, Apr 20 - Fri, May 8
Lufthansa Logo
4:57 pm - 11:10 pm
AUS
-
SOF
22h 13m
2 stops
Lufthansa Logo
6:20 am - 2:00 pm
SOF
-
AUS
15h 40m
1 stop
$523Lufthansa
Mon, Apr 20 - Fri, May 8
Lufthansa Logo
4:57 pm - 11:10 pm
AUS
-
SOF
22h 13m
2 stops
Lufthansa Logo
6:20 am - 2:00 pm
SOF
-
AUS
15h 40m
1 stop
$524Lufthansa
Mon, Apr 20 - Fri, May 8
Lufthansa Logo
4:57 pm - 11:10 pm
AUS
-
SOF
22h 13m
2 stops
Lufthansa Logo
6:10 am - 6:53 pm
SOF
-
AUS
20h 43m
2 stops
$532Lufthansa
Mon, Apr 20 - Fri, May 8
Lufthansa Logo
4:05 pm - 1:20 pm
AUS
-
SOF
13h 15m
1 stop
Lufthansa Logo
6:20 am - 2:00 pm
SOF
-
AUS
15h 40m
1 stop
$533Lufthansa
Mon, Apr 20 - Fri, May 8
Lufthansa Logo
4:05 pm - 1:20 pm
AUS
-
SOF
13h 15m
1 stop
Lufthansa Logo
6:20 am - 2:00 pm
SOF
-
AUS
15h 40m
1 stop
$534Lufthansa
Mon, Mar 30 - Fri, May 1
Lufthansa Logo
12:14 pm - 1:20 pm
AUS
-
SOF
17h 06m
2 stops
Lufthansa Logo
6:20 am - 2:00 pm
SOF
-
AUS
15h 40m
1 stop
$535Lufthansa
Mon, Apr 20 - Fri, May 8
Multiple Airlines Logo
9:40 am - 11:10 pm
AUS
-
SOF
29h 30m
2 stops
Multiple Airlines Logo
6:10 am - 8:15 pm
SOF
-
AUS
46h 05m
2 stops
$541Multiple Airlines
Mon, Mar 30 - Fri, May 1
United Airlines Logo
2:10 pm - 11:10 pm
AUS
-
SOF
25h 00m
2 stops
United Airlines Logo
6:20 am - 10:53 am
SOF
-
AUS
36h 33m
2 stops
$545United Airlines
Mon, Apr 20 - Fri, May 8
Multiple Airlines Logo
9:40 am - 11:10 pm
AUS
-
SOF
29h 30m
2 stops
Multiple Airlines Logo
6:20 am - 10:53 am
SOF
-
AUS
36h 33m
3 stops
$547Multiple Airlines
Mon, Apr 20 - Fri, May 8
Multiple Airlines Logo
9:40 am - 11:10 pm
AUS
-
SOF
29h 30m
2 stops
Multiple Airlines Logo
6:20 am - 10:53 am
SOF
-
AUS
36h 33m
3 stops
$548Multiple Airlines
Booking Insights

KAYAK's insights & trends for Austin to Bulgaria flights

Get data-powered insights and trends into flights from Austin to Bulgaria to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Austin to Bulgaria?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Austin to Bulgaria were found on Lufthansa ($523) and British Airways ($533).

Good to know

Low seasonMarch
Cheapest flight$523
Best time to beat the crowds with an average 48% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Austin to Sofia

FAQs - booking Bulgaria flights

  • How does KAYAK find such low prices on flights from Austin to Bulgaria?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Bulgaria.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Bulgaria?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Austin to Bulgaria is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Bulgaria?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Austin to Bulgaria with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Bulgaria?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Austin to Bulgaria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Austin to Bulgaria

 
Need help choosing which airline to fly with from Austin to Bulgaria? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9213 reviews
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Delayed, toilets did not flush, pilot parked to far away from Gate

2.0 MediocreLisa, Jan 2026
ELP - IAH
Read more United Airlines reviews

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

Everything you need to know for your flight from Austin to Bulgaria

Information on your arrival and departure airports