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Cheap flights from San Francisco to Bulgaria from $344

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 1/19. 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
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
8:45 pm - 10:45 pm
SFO
-
SOF
16h 00m1 stop
Lufthansa Logo
6:00 am - 12:40 pm
SOF
-
SFO
16h 40m1 stop
$545Lufthansa
Tue, Feb 10 - Tue, Feb 24
Lufthansa Logo
7:00 am - 1:50 pm
SFO
-
SOF
20h 50m2 stops
Lufthansa Logo
6:00 am - 12:40 pm
SOF
-
SFO
16h 40m1 stop
$557Lufthansa
Thu, Jan 22 - Thu, Feb 5
Lufthansa Logo
9:25 pm - 10:45 pm
SFO
-
SOF
15h 20m1 stop
Lufthansa Logo
6:10 am - 12:40 pm
SOF
-
SFO
16h 30m1 stop
$559Lufthansa
Mon, Feb 9 - Mon, Feb 23
Lufthansa Logo
9:25 pm - 10:45 pm
SFO
-
SOF
15h 20m1 stop
Lufthansa Logo
6:00 am - 3:55 pm
SOF
-
SFO
19h 55m1 stop
$560Lufthansa
Thu, Jan 22 - Thu, Feb 5
Multiple Airlines Logo
12:50 pm - 6:00 pm
SFO
-
SOF
19h 10m2 stops
Multiple Airlines Logo
2:00 pm - 7:35 pm
SOF
-
SFO
15h 35m1 stop
$563Multiple Airlines
Sun, Jan 18 - Sun, Jan 25
British Airways Logo
8:40 pm - 8:10 pm
SFO
-
SOF
37h 30m1 stop
British Airways Logo
5:25 pm - 6:45 pm
SOF
-
SFO
35h 20m1 stop
$564British Airways
Mon, Jan 19 - Mon, Feb 2
Multiple Airlines Logo
9:25 pm - 10:45 pm
SFO
-
SOF
15h 20m1 stop
Multiple Airlines Logo
2:15 pm - 10:54 am
SOF
-
SFO
30h 39m2 stops
$574Multiple Airlines
Mon, Jan 19 - Tue, Feb 3
Austrian Airlines Logo
5:25 pm - 3:15 pm
SFO
-
VAR
35h 50m2 stops
Austrian Airlines Logo
4:00 pm - 7:25 pm
VAR
-
SFO
37h 25m2 stops
$632Austrian Airlines
Wed, Feb 4 - Fri, Feb 13
Austrian Airlines Logo
5:25 pm - 3:15 pm
SFO
-
VAR
35h 50m2 stops
Austrian Airlines Logo
4:00 pm - 7:19 pm
VAR
-
SFO
37h 19m2 stops
$648Austrian Airlines
Sat, Jan 24 - Fri, Jan 30
Turkish Airlines Logo
6:50 pm - 9:10 am
SFO
-
VAR
28h 20m1 stop
Turkish Airlines Logo
10:00 am - 11:05 am
VAR
-
SFO
35h 05m1 stop
$652Turkish Airlines
Wed, Feb 4 - Fri, Feb 13

Lufthansa flights from San Francisco to Bulgaria

Our best Lufthansa deals on San Francisco to Bulgaria flight tickets
Lufthansa
Feb 10
SFO8:45 pmSan Francisco
16h 00m
1 stop
SOF10:45 pmSofia
Feb 24
SOF6:00 amSofia
16h 40m
1 stop
SFO12:40 pmSan Francisco
$545
Find similar
Lufthansa
Jan 22
SFO7:00 amSan Francisco
20h 50m
2 stops
SOF1:50 pmSofia
Feb 5
SOF6:00 amSofia
16h 40m
1 stop
SFO12:40 pmSan Francisco
$557
Find similar
Lufthansa
Feb 9
SFO9:25 pmSan Francisco
15h 20m
1 stop
SOF10:45 pmSofia
Feb 23
SOF6:10 amSofia
16h 30m
1 stop
SFO12:40 pmSan Francisco
$559
Find similar

British Airways flights from San Francisco to Bulgaria

Our best British Airways deals on San Francisco to Bulgaria flight tickets
British Airways
Jan 19
SFO8:40 pmSan Francisco
37h 30m
1 stop
SOF8:10 pmSofia
Feb 2
SOF5:25 pmSofia
35h 20m
1 stop
SFO6:45 pmSan Francisco
$564
Find similar
British Airways
Dec 27
SFO11:59 pmSan Francisco
30h 21m
2 stops
SOF4:20 pmSofia
Jan 4
SOF2:30 pmSofia
36h 34m
2 stops
SFO5:04 pmSan Francisco
$5,626
Find similar
British Airways
Dec 27
SFO11:59 pmSan Francisco
30h 21m
2 stops
SOF4:20 pmSofia
Jan 4
SOF2:30 pmSofia
34h 30m
1 stop
SFO3:00 pmSan Francisco
$6,774
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 21, 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 2/10

8:45 pm-10:45 pm

1 stop16h 00m

Sofia

Tue 2/24

6:00 am-12:40 pm

1 stop16h 40m

$545

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 1/22

7:00 am-1:50 pm

2 stops20h 50m

Sofia

Thu 2/5

6:00 am-12:40 pm

1 stop16h 40m

$557

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 2/9

9:25 pm-10:45 pm

1 stop15h 20m

Sofia

Mon 2/23

6:10 am-12:40 pm

1 stop16h 30m

$559

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 1/22

9:25 pm-10:45 pm

1 stop15h 20m

Sofia

Thu 2/5

6:00 am-3:55 pm

1 stop19h 55m

$560

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 1/18

12:50 pm-6:00 pm

2 stops19h 10m

Sofia

Sun 1/25

2:00 pm-7:35 pm

1 stop15h 35m

$563

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 1/19

8:40 pm-8:10 pm

1 stop37h 30m

Sofia

Mon 2/2

5:25 pm-6:45 pm

1 stop35h 20m

$564

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 1/19

9:25 pm-10:45 pm

1 stop15h 20m

Sofia

Tue 2/3

2:15 pm-10:54 am

2 stops30h 39m

$574

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 2/4

5:25 pm-3:15 pm

2 stops35h 50m

Varna

Fri 2/13

4:00 pm-7:25 pm

2 stops37h 25m

$632

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Sat 1/24

5:25 pm-3:15 pm

2 stops35h 50m

Varna

Fri 1/30

4:00 pm-7:19 pm

2 stops37h 19m

$648

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 2/4

6:50 pm-9:10 am

1 stop28h 20m

Varna

Fri 2/13

10:00 am-11:05 am

1 stop35h 05m

$652

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $825 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 17% 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 20m

Direct flights

None
The fastest flight from San Francisco to Bulgaria takes 15h 20m
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
4,107 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $565Free CancellationRating
6.8
7,640 reviews
Search Lufthansa flights
United AirlinesPriceFrom $616Free CancellationRating
7.4
9,100 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $652Free CancellationRating
6.7
1,112 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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