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Cheap flights from San Francisco to Bulgaria from $240

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Bulgaria departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Francisco to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
9:40 pm - 10:45 pm
SFO
-
SOF
15h 05m1 stop
Lufthansa Logo
6:00 am - 3:55 pm
SOF
-
SFO
19h 55m1 stop
$569Lufthansa
Tue, Jan 6 - Tue, Jan 20
Lufthansa Logo
6:50 pm - 10:45 pm
SFO
-
SOF
17h 55m1 stop
Lufthansa Logo
2:35 pm - 8:10 pm
SOF
-
SFO
15h 35m1 stop
$581Lufthansa
Fri, Jan 30 - Fri, Feb 13
Multiple Airlines Logo
9:40 pm - 10:45 pm
SFO
-
SOF
15h 05m1 stop
Multiple Airlines Logo
7:55 am - 6:55 pm
SOF
-
SFO
21h 00m2 stops
$584Multiple Airlines
Tue, Jan 6 - Tue, Jan 20
Lufthansa Logo
10:40 pm - 10:45 pm
SFO
-
SOF
15h 05m1 stop
Lufthansa Logo
6:10 am - 1:40 pm
SOF
-
SFO
16h 30m1 stop
$585Lufthansa
Wed, Mar 11 - Wed, Mar 25
Lufthansa Logo
9:25 pm - 10:45 pm
SFO
-
SOF
15h 20m1 stop
Lufthansa Logo
2:00 pm - 6:55 pm
SOF
-
SFO
14h 55m1 stop
$586Lufthansa
Tue, Jan 27 - Tue, Feb 10
Multiple Airlines Logo
5:25 pm - 3:15 pm
SFO
-
SOF
35h 50m2 stops
Multiple Airlines Logo
2:00 pm - 7:35 pm
SOF
-
SFO
15h 35m1 stop
$587Multiple Airlines
Tue, Dec 30 - Tue, Jan 13
Turkish Airlines Logo
6:50 pm - 3:10 pm
SFO
-
SOF
34h 20m1 stop
Turkish Airlines Logo
4:00 pm - 4:45 pm
SOF
-
SFO
34h 45m1 stop
$592Turkish Airlines
Thu, Jan 22 - Thu, Jan 29
Austrian Airlines Logo
12:50 pm - 3:15 pm
SFO
-
VAR
40h 25m2 stops
Austrian Airlines Logo
4:00 pm - 12:40 pm
VAR
-
SFO
30h 40m2 stops
$650Austrian Airlines
Sat, Dec 27 - Thu, Apr 16
Turkish Airlines Logo
7:50 pm - 9:10 am
SFO
-
VAR
28h 20m1 stop
Turkish Airlines Logo
10:00 am - 5:45 pm
VAR
-
SFO
16h 45m1 stop
$694Turkish Airlines
Wed, Mar 18 - Sun, Mar 22
Austrian Airlines Logo
9:25 pm - 3:15 pm
SFO
-
VAR
31h 50m2 stops
Austrian Airlines Logo
4:00 pm - 12:40 pm
VAR
-
SFO
30h 40m2 stops
$5,530Austrian Airlines
Mon, Feb 2 - Sun, Feb 22

Austrian Airlines flights from San Francisco to Bulgaria

Our best Austrian Airlines deals on San Francisco to Bulgaria flight tickets
Austrian Airlines
Mar 11
SFO1:50 pmSan Francisco
19h 10m
2 stops
SOF6:00 pmSofia
Mar 25
SOF7:55 amSofia
21h 40m
2 stops
SFO8:35 pmSan Francisco
$628
Find similar
Austrian Airlines
Dec 27
SFO12:50 pmSan Francisco
40h 25m
2 stops
VAR3:15 pmVarna
Apr 16
VAR4:00 pmVarna
30h 40m
2 stops
SFO12:40 pmSan Francisco
$650
Find similar
Austrian Airlines
Dec 29
SFO9:40 pmSan Francisco
16h 15m
2 stops
SOF11:55 pmSofia
Jan 12
SOF6:45 pmSofia
34h 50m
2 stops
SFO7:35 pmSan Francisco
$659
Find similar

Lufthansa flights from San Francisco to Bulgaria

Our best Lufthansa deals on San Francisco to Bulgaria flight tickets
Lufthansa
Jan 6
SFO9:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Jan 20
SOF6:00 amSofia
19h 55m
1 stop
SFO3:55 pmSan Francisco
$569
Find similar
Lufthansa
Jan 30
SFO6:50 pmSan Francisco
17h 55m
1 stop
SOF10:45 pmSofia
Feb 13
SOF2:35 pmSofia
15h 35m
1 stop
SFO8:10 pmSan Francisco
$581
Find similar
Lufthansa
Mar 11
SFO10:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Mar 25
SOF6:10 amSofia
16h 30m
1 stop
SFO1:40 pmSan Francisco
$585
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco 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, momondo users made 832,500 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from San Francisco to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/6

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Tue 1/20

6:00 am-3:55 pm

1 stop19h 55m

$569

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Fri 1/30

6:50 pm-10:45 pm

1 stop17h 55m

Sofia

Fri 2/13

2:35 pm-8:10 pm

1 stop15h 35m

$581

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/6

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Tue 1/20

7:55 am-6:55 pm

2 stops21h 00m

$584

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/11

10:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 3/25

6:10 am-1:40 pm

1 stop16h 30m

$585

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/27

9:25 pm-10:45 pm

1 stop15h 20m

Sofia

Tue 2/10

2:00 pm-6:55 pm

1 stop14h 55m

$586

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 12/30

5:25 pm-3:15 pm

2 stops35h 50m

Sofia

Tue 1/13

2:00 pm-7:35 pm

1 stop15h 35m

$587

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 1/22

6:50 pm-3:10 pm

1 stop34h 20m

Sofia

Thu 1/29

4:00 pm-4:45 pm

1 stop34h 45m

$592

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Sat 12/27

12:50 pm-3:15 pm

2 stops40h 25m

Varna

Thu 4/16

4:00 pm-12:40 pm

2 stops30h 40m

$650

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 3/18

7:50 pm-9:10 am

1 stop28h 20m

Varna

Sun 3/22

10:00 am-5:45 pm

1 stop16h 45m

$694

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Mon 2/2

9:25 pm-3:15 pm

2 stops31h 50m

Varna

Sun 2/22

4:00 pm-12:40 pm

2 stops30h 40m

$5,530

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bulgaria from

How to get the cheapest flight ticket from San Francisco to Bulgaria

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 month to fly to Bulgaria?

If you aren’t able to travel to Bulgaria during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $620.

What is the cheapest day to depart on your flight to Bulgaria?

The cheapest day to depart from San Francisco to Bulgaria is on a Thursday when prices can be found for as low as $832. On the other hand, Friday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,318.

What is the cheapest time of day to depart on your flight to Bulgaria?

In the afternoon is the cheapest time of day to fly from San Francisco to Bulgaria when you can find flight prices for as low as $817. Flying to Bulgaria in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly in the morning, with an average ticket price of $1,363. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $827 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from San Francisco for as low as $696 on momondo.

Can stopping save me money on San Francisco to Bulgaria flights?

You could potentially save up to 1% on your flight if you consider stops on a San Francisco to Bulgaria flight.

Cheap San Francisco to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Bulgaria

Fastest flight time

15h 05m

Direct flights

None
The fastest flight from San Francisco to Bulgaria takes 15h 05m
There are no direct flights from San Francisco to Bulgaria. There are no popular flight routes from San Francisco to Bulgaria.
Search flight deals

  • When did momondo last update prices for flights from San Francisco Airport to Bulgaria?

    Prices for flights from San Francisco Airport to Bulgaria refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to Bulgaria?

  • How old do you have to be to fly from San Francisco Airport to Bulgaria?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The required travel and health documents for your Bulgaria 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 Bulgaria. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from San Francisco to Bulgaria

Compare and see reviews for airlines that fly from San Francisco to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $542Free CancellationRating
7.3
4,085 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $565Free CancellationRating
6.8
7,618 reviews
Search Lufthansa flights
United AirlinesPriceFrom $616Free CancellationRating
7.4
9,088 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $652Free CancellationRating
6.7
1,098 reviews
Search ITA Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Bulgaria?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bulgaria from San Francisco.

Can I find flights from San Francisco to Bulgaria with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Bulgaria from San Francisco with this policy.

How can momondo help me find flights from San Francisco to Bulgaria?

Once all potential San Francisco to Bulgaria flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of San Francisco to Bulgaria flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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