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Cheap flights from San Francisco to Bulgaria from $355

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 9/30. 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.
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
Multiple Airlines Logo
6:25 am - 4:06 pm
SOF
-
SFO
19h 41m
2 stops
$720Multiple Airlines
Tue, Oct 20 - Tue, Nov 3
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
Multiple Airlines Logo
6:25 am - 4:06 pm
SOF
-
SFO
19h 41m
2 stops
$723Multiple Airlines
Wed, Oct 21 - Wed, Nov 4
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
Multiple Airlines Logo
6:25 am - 4:06 pm
SOF
-
SFO
19h 41m
2 stops
$728Multiple Airlines
Tue, Oct 20 - Tue, Nov 3
Lufthansa Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
Lufthansa Logo
6:25 am - 12:35 pm
SOF
-
SFO
16h 10m
1 stop
$729Lufthansa
Tue, Oct 20 - Tue, Nov 3
Lufthansa Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
Lufthansa Logo
7:05 pm - 7:35 pm
SOF
-
SFO
34h 30m
1 stop
$738Lufthansa
Mon, Oct 19 - Mon, Nov 2
Austrian Airlines Logo
9:05 pm - 3:15 pm
SFO
-
VAR
32h 10m
2 stops
Austrian Airlines Logo
8:30 pm - 7:19 pm
VAR
-
SFO
32h 49m
2 stops
$828Austrian Airlines
Wed, Sep 2 - Thu, Sep 24
Austrian Airlines Logo
9:05 pm - 3:15 pm
SFO
-
VAR
32h 10m
2 stops
Austrian Airlines Logo
4:00 pm - 12:40 pm
VAR
-
SFO
54h 40m
2 stops
$829Austrian Airlines
Wed, Oct 7 - Sun, Oct 11
Lufthansa Logo
1:55 pm - 6:20 pm
SFO
-
BOJ
18h 25m
1 stop
Lufthansa Logo
12:35 pm - 7:00 pm
BOJ
-
SFO
16h 25m
1 stop
$851Lufthansa
Mon, Aug 10 - Wed, Aug 26
Austrian Airlines Logo
7:50 pm - 3:15 pm
SFO
-
VAR
33h 25m
2 stops
Austrian Airlines Logo
4:00 pm - 7:00 pm
VAR
-
SFO
37h 00m
2 stops
$858Austrian Airlines
Tue, Aug 11 - Tue, Sep 15
Lufthansa Logo
2:40 pm - 6:45 pm
SFO
-
VAR
18h 05m
1 stop
Lufthansa Logo
4:00 pm - 7:00 pm
VAR
-
SFO
37h 00m
2 stops
$871Lufthansa
Tue, Aug 11 - Tue, Sep 15

Turkish Airlines flights from San Francisco to Bulgaria

Our best Turkish Airlines deals on San Francisco to Bulgaria flight tickets
Turkish Airlines
Aug 11
SFO6:45 pmSan Francisco
28h 00m
1 stop
SOF8:45 amSofia
Sep 15
SOF9:05 pmSofia
29h 35m
1 stop
SFO4:40 pmSan Francisco
$794
Turkish Airlines
Oct 7
SFO6:45 pmSan Francisco
27h 45m
1 stop
VAR8:30 amVarna
Oct 11
VAR9:20 amVarna
17h 20m
1 stop
SFO4:40 pmSan Francisco
$917
Turkish Airlines
Aug 11
SFO6:45 pmSan Francisco
16h 35m
1 stop
VAR9:20 pmVarna
Sep 15
VAR9:20 amVarna
17h 20m
1 stop
SFO4:40 pmSan Francisco
$933

United Airlines flights from San Francisco to Bulgaria

Our best United Airlines deals on San Francisco to Bulgaria flight tickets
United Airlines
Oct 18
SFO1:55 pmSan Francisco
23h 20m
1 stop
SOF11:15 pmSofia
Oct 22
SOF6:30 amSofia
18h 50m
1 stop
SFO3:20 pmSan Francisco
$765
United Airlines
Sep 8
SFO1:56 pmSan Francisco
18h 44m
2 stops
SOF6:40 pmSofia
Oct 6
SOF6:10 amSofia
20h 54m
2 stops
SFO5:04 pmSan Francisco
$780
United Airlines
Sep 14
SFO2:20 pmSan Francisco
22h 55m
2 stops
SOF11:15 pmSofia
Sep 21
SOF2:20 pmSofia
32h 20m
1 stop
SFO12:40 pmSan Francisco
$790

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 May 23, 2026.
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

Cheapest round-trip

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 10/20

9:05 pm-11:15 pm

1 stop16h 10m

Sofia

Tue 11/3

6:25 am-4:06 pm

2 stops19h 41m

$720

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 10/21

9:05 pm-11:15 pm

1 stop16h 10m

Sofia

Wed 11/4

6:25 am-4:06 pm

2 stops19h 41m

$723

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 10/20

9:05 pm-11:15 pm

1 stop16h 10m

Sofia

Tue 11/3

6:25 am-4:06 pm

2 stops19h 41m

$728
Quickest round-trip

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 10/20

9:05 pm-11:15 pm

1 stop16h 10m

Sofia

Tue 11/3

6:25 am-12:35 pm

1 stop16h 10m

$729

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 10/19

9:05 pm-11:15 pm

1 stop16h 10m

Sofia

Mon 11/2

7:05 pm-7:35 pm

1 stop34h 30m

$738

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 9/2

9:05 pm-3:15 pm

2 stops32h 10m

Varna

Thu 9/24

8:30 pm-7:19 pm

2 stops32h 49m

$828

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 10/7

9:05 pm-3:15 pm

2 stops32h 10m

Varna

Sun 10/11

4:00 pm-12:40 pm

2 stops54h 40m

$829

San FranciscoBurgas

SFO - BOJ

SFOBOJ

San Francisco

Mon 8/10

1:55 pm-6:20 pm

1 stop18h 25m

Bourgas

Wed 8/26

12:35 pm-7:00 pm

1 stop16h 25m

$851

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 8/11

7:50 pm-3:15 pm

2 stops33h 25m

Varna

Tue 9/15

4:00 pm-7:00 pm

2 stops37h 00m

$858

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 8/11

2:40 pm-6:45 pm

1 stop18h 05m

Varna

Tue 9/15

4:00 pm-7:00 pm

2 stops37h 00m

$871

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 August, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $381.

How far in advance should I book a flight from San Francisco 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 $757 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 $681 on momondo.

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

You could potentially save up to 13% 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

14h 35m

Direct flights

None
The fastest flight from San Francisco to Bulgaria takes 14h 35m
There are no direct flights from San Francisco to Bulgaria. There are no popular flight routes from San Francisco to Bulgaria.
Search flight deals

Frequently asked questions about flying from San Francisco to Bulgaria

  • 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 $391Free CancellationRating
7.4
4,395 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $534Free CancellationRating
6.8
8,023 reviews
Search Lufthansa flights
United AirlinesPriceFrom $603Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
LOTPriceFrom $627Free CancellationRating
7.5
1,194 reviews
Search LOT 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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