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Cheap flights from Austin to Sofia from $427

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Sofia departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Austin to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
4:05 pm - 6:00 pm
AUS
-
SOF
17h 55m
1 stop
Lufthansa Logo
7:00 pm - 2:00 pm
SOF
-
AUS
27h 00m
1 stop
$849Lufthansa
Mon, Sep 7 - Mon, Sep 21
United Airlines Logo
12:12 pm - 11:15 pm
AUS
-
SOF
27h 03m
2 stops
United Airlines Logo
2:20 pm - 2:00 pm
SOF
-
AUS
31h 40m
1 stop
$851United Airlines
Mon, Sep 7 - Mon, Sep 21
Lufthansa Logo
4:05 pm - 6:00 pm
AUS
-
SOF
17h 55m
1 stop
Lufthansa Logo
7:00 pm - 2:00 pm
SOF
-
AUS
27h 00m
1 stop
$854Lufthansa
Mon, Sep 7 - Mon, Sep 21
Lufthansa Logo
4:05 pm - 10:40 pm
AUS
-
SOF
22h 35m
1 stop
Lufthansa Logo
2:20 pm - 2:00 pm
SOF
-
AUS
31h 40m
1 stop
$855Lufthansa
Mon, Oct 12 - Mon, Oct 19
United Airlines Logo
5:10 am - 11:15 pm
AUS
-
SOF
34h 05m
2 stops
United Airlines Logo
2:20 pm - 2:00 pm
SOF
-
AUS
31h 40m
1 stop
$856United Airlines
Mon, Oct 12 - Mon, Oct 19
United Airlines Logo
12:12 pm - 11:15 pm
AUS
-
SOF
27h 03m
2 stops
United Airlines Logo
2:20 pm - 2:00 pm
SOF
-
AUS
31h 40m
1 stop
$856United Airlines
Mon, Sep 7 - Mon, Sep 21
Lufthansa Logo
5:20 pm - 10:40 pm
AUS
-
SOF
21h 20m
2 stops
Lufthansa Logo
7:25 pm - 2:00 pm
SOF
-
AUS
26h 35m
2 stops
$857Lufthansa
Mon, Sep 7 - Mon, Sep 21
Multiple Airlines Logo
11:35 am - 11:40 am
AUS
-
SOF
16h 05m
2 stops
Multiple Airlines Logo
10:30 pm - 7:55 pm
SOF
-
AUS
29h 25m
3 stops
$1,359Multiple Airlines
Mon, Oct 5 - Mon, Oct 19
Multiple Airlines Logo
9:00 am - 6:00 pm
AUS
-
SOF
25h 00m
2 stops
Multiple Airlines Logo
10:30 pm - 7:55 pm
SOF
-
AUS
29h 25m
3 stops
$1,380Multiple Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
11:40 am - 10:30 pm
AUS
-
SOF
26h 50m
2 stops
Multiple Airlines Logo
12:55 pm - 10:48 am
SOF
-
AUS
29h 53m
3 stops
$1,557Multiple Airlines
Fri, Sep 4 - Sat, Sep 12

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Lufthansa flights from Austin to Sofia

Our best Lufthansa deals on Austin to Sofia flight tickets
Lufthansa
Sep 7
AUS4:05 pmAustin Bergstrom
17h 55m
1 stop
SOF6:00 pmSofia
Sep 21
SOF7:00 pmSofia
27h 00m
1 stop
AUS2:00 pmAustin Bergstrom
$849
Lufthansa
Sep 7
AUS4:05 pmAustin Bergstrom
17h 55m
1 stop
SOF6:00 pmSofia
Sep 21
SOF7:00 pmSofia
27h 00m
1 stop
AUS2:00 pmAustin Bergstrom
$854
Lufthansa
Oct 12
AUS4:05 pmAustin Bergstrom
22h 35m
1 stop
SOF10:40 pmSofia
Oct 19
SOF2:20 pmSofia
31h 40m
1 stop
AUS2:00 pmAustin Bergstrom
$855

United Airlines flights from Austin to Sofia

Our best United Airlines deals on Austin to Sofia flight tickets
United Airlines
Sep 7
AUS12:12 pmAustin Bergstrom
27h 03m
2 stops
SOF11:15 pmSofia
Sep 21
SOF2:20 pmSofia
31h 40m
1 stop
AUS2:00 pmAustin Bergstrom
$851
United Airlines
Sep 7
AUS12:12 pmAustin Bergstrom
27h 03m
2 stops
SOF11:15 pmSofia
Sep 21
SOF2:20 pmSofia
31h 40m
1 stop
AUS2:00 pmAustin Bergstrom
$856
United Airlines
Sep 7
AUS5:30 amAustin Bergstrom
33h 45m
2 stops
SOF11:15 pmSofia
Sep 21
SOF2:20 pmSofia
35h 35m
2 stops
AUS5:55 pmAustin Bergstrom
$866

momondo 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, momondo users made 832,500 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from Austin to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/7

4:05 pm-6:00 pm

1 stop17h 55m

Sofia

Mon 9/21

7:00 pm-2:00 pm

1 stop27h 00m

$849

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/7

12:12 pm-11:15 pm

2 stops27h 03m

Sofia

Mon 9/21

2:20 pm-2:00 pm

1 stop31h 40m

$851

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/7

4:05 pm-6:00 pm

1 stop17h 55m

Sofia

Mon 9/21

7:00 pm-2:00 pm

1 stop27h 00m

$854

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 10/12

4:05 pm-10:40 pm

1 stop22h 35m

Sofia

Mon 10/19

2:20 pm-2:00 pm

1 stop31h 40m

$855

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 10/12

5:10 am-11:15 pm

2 stops34h 05m

Sofia

Mon 10/19

2:20 pm-2:00 pm

1 stop31h 40m

$856

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/7

12:12 pm-11:15 pm

2 stops27h 03m

Sofia

Mon 9/21

2:20 pm-2:00 pm

1 stop31h 40m

$856

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 9/7

5:20 pm-10:40 pm

2 stops21h 20m

Sofia

Mon 9/21

7:25 pm-2:00 pm

2 stops26h 35m

$857

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 10/5

11:35 am-11:40 am

2 stops16h 05m

Sofia

Mon 10/19

10:30 pm-7:55 pm

3 stops29h 25m

$1,359

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Mon 10/12

9:00 am-6:00 pm

2 stops25h 00m

Sofia

Mon 10/19

10:30 pm-7:55 pm

3 stops29h 25m

$1,380

AustinSofia

AUS - SOF

AUSSOF

Austin Bergstrom

Fri 9/4

11:40 am-10:30 pm

2 stops26h 50m

Sofia

Sat 9/12

12:55 pm-10:48 am

3 stops29h 53m

$1,557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Austin to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Austin Bergstrom to Sofia?

United Airlines and Lufthansa are the most popular carriers operating from Austin Bergstrom to Sofia

What airlines fly to Sofia?

United Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Sofia from Austin according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 3 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.

When to book flights from Austin to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Sofia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Sofia (AUS to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Sofia

Fastest flight time

46h 10m

Direct flights

None
The fastest flight from Austin to Sofia takes 46h 10m
There are no direct flights from Austin to Sofia. There are no popular flight routes from Austin to Sofia.
Search flight deals

Frequently asked questions about flying from Austin to Sofia

  • How far is Austin Bergstrom to Sofia by plane?

    There are 6157.2 mi between Austin Bergstrom and Sofia. Flights usually cover this in 46h 10m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Sofia Airport?

    Prices for flights from Austin Bergstrom Airport to Sofia Airport were last updated today.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Sofia Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Sofia Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Sofia Airport.

  • What documentation or ID do you need to fly to Sofia Airport?

    The required travel and health documents for your Sofia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Austin to Sofia?

Best airlines flying from Austin to Sofia

Compare and see reviews for airlines that fly from Austin to Sofia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $600Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights
LufthansaPriceFrom $862Free CancellationRating
6.8
8,163 reviews
Search Lufthansa flights

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Bansko
Borovets
Velingrad
Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Sofia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Austin to Sofia. momondo saves you time and could save you money on your trip.

Can I find flights from Austin to Sofia with flexible booking policies on momondo?

Yes. All flights to Sofia from Austin on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Austin to Sofia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Austin to Sofia.

I’m not ready to book a flight from Austin to Sofia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sofia from Austin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
Lufthansa
KLM