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Cheap flights from San Francisco to Bulgaria from $359

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 4/6. 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
9:05 pm - 11:00 pm
SFO
-
SOF
15h 55m
1 stop
Lufthansa Logo
6:10 am - 12:40 pm
SOF
-
SFO
16h 30m
1 stop
$529Lufthansa
Tue, Aug 18 - Tue, Sep 1
Multiple Airlines Logo
7:40 pm - 9:40 am
SFO
-
SOF
28h 00m
1 stop
Multiple Airlines Logo
9:40 pm - 5:55 pm
SOF
-
SFO
30h 15m
1 stop
$531Multiple Airlines
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
2:00 pm - 11:00 pm
SFO
-
SOF
23h 00m
1 stop
United Airlines Logo
6:20 am - 9:28 pm
SOF
-
SFO
25h 08m
2 stops
$535United Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
8:10 am - 1:05 pm
SFO
-
SOF
18h 55m
2 stops
Multiple Airlines Logo
6:10 am - 12:40 pm
SOF
-
SFO
16h 30m
1 stop
$542Multiple Airlines
Tue, Aug 18 - Tue, Sep 1
Multiple Airlines Logo
9:05 pm - 11:00 pm
SFO
-
SOF
15h 55m
1 stop
Multiple Airlines Logo
11:05 am - 4:15 pm
SOF
-
SFO
15h 10m
1 stop
$543Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
5:20 am - 12:10 pm
SFO
-
SOF
20h 50m
2 stops
United Airlines Logo
6:30 am - 12:40 pm
SOF
-
SFO
16h 10m
1 stop
$547United Airlines
Wed, Aug 19 - Thu, Aug 27
Turkish Airlines Logo
12:55 pm - 8:45 am
SFO
-
VAR
33h 50m
1 stop
Turkish Airlines Logo
9:35 am - 4:40 pm
VAR
-
SFO
17h 05m
1 stop
$646Turkish Airlines
Mon, May 4 - Fri, Jun 5
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
30h 40m
2 stops
$677Austrian Airlines
Sun, Apr 12 - Tue, May 12
Turkish Airlines Logo
6:45 pm - 2:45 am
SFO
-
VAR
22h 00m
1 stop
Turkish Airlines Logo
3:35 am - 4:40 pm
VAR
-
SFO
23h 05m
1 stop
$686Turkish Airlines
Sun, Apr 12 - Mon, May 11
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
30h 40m
2 stops
$690Austrian Airlines
Tue, Apr 14 - Mon, May 11

British Airways flights from San Francisco to Bulgaria

Our best British Airways deals on San Francisco to Bulgaria flight tickets
British Airways
Apr 14
SFO4:35 pmSan Francisco
17h 55m
1 stop
SOF8:30 pmSofia
Apr 20
SOF8:10 pmSofia
27h 40m
1 stop
SFO1:50 pmSan Francisco
$586
British Airways
Apr 15
SFO4:35 pmSan Francisco
34h 50m
1 stop
SOF1:25 pmSofia
May 20
SOF9:25 pmSofia
26h 25m
1 stop
SFO1:50 pmSan Francisco
$598

United Airlines flights from San Francisco to Bulgaria

Our best United Airlines deals on San Francisco to Bulgaria flight tickets
United Airlines
Aug 19
SFO2:00 pmSan Francisco
23h 00m
1 stop
SOF11:00 pmSofia
Aug 26
SOF6:20 amSofia
25h 08m
2 stops
SFO9:28 pmSan Francisco
$535
United Airlines
Aug 19
SFO5:20 amSan Francisco
20h 50m
2 stops
SOF12:10 pmSofia
Aug 27
SOF6:30 amSofia
16h 10m
1 stop
SFO12:40 pmSan Francisco
$547
United Airlines
Aug 19
SFO5:20 amSan Francisco
20h 50m
2 stops
SOF12:10 pmSofia
Aug 25
SOF2:10 pmSofia
32h 30m
1 stop
SFO12:40 pmSan Francisco
$550

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 February 20, 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

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 8/18

9:05 pm-11:00 pm

1 stop15h 55m

Sofia

Tue 9/1

6:10 am-12:40 pm

1 stop16h 30m

$529

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 4/14

7:40 pm-9:40 am

1 stop28h 00m

Sofia

Wed 4/22

9:40 pm-5:55 pm

1 stop30h 15m

$531

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/19

2:00 pm-11:00 pm

1 stop23h 00m

Sofia

Wed 8/26

6:20 am-9:28 pm

2 stops25h 08m

$535

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 8/18

8:10 am-1:05 pm

2 stops18h 55m

Sofia

Tue 9/1

6:10 am-12:40 pm

1 stop16h 30m

$542

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/19

9:05 pm-11:00 pm

1 stop15h 55m

Sofia

Wed 8/26

11:05 am-4:15 pm

1 stop15h 10m

$543

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/19

5:20 am-12:10 pm

2 stops20h 50m

Sofia

Thu 8/27

6:30 am-12:40 pm

1 stop16h 10m

$547

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Mon 5/4

12:55 pm-8:45 am

1 stop33h 50m

Varna

Fri 6/5

9:35 am-4:40 pm

1 stop17h 05m

$646

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Sun 4/12

9:05 pm-3:15 pm

2 stops32h 10m

Varna

Tue 5/12

4:00 pm-12:40 pm

2 stops30h 40m

$677

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Sun 4/12

6:45 pm-2:45 am

1 stop22h 00m

Varna

Mon 5/11

3:35 am-4:40 pm

1 stop23h 05m

$686

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 4/14

9:05 pm-3:15 pm

2 stops32h 10m

Varna

Mon 5/11

4:00 pm-12:40 pm

2 stops30h 40m

$690

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 October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $624.

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 $801 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 $652 on momondo.

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

You could potentially save up to 48% 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 $421Free CancellationRating
7.3
4,224 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $548Free CancellationRating
6.8
7,794 reviews
Search Lufthansa flights
British AirwaysPriceFrom $594Free CancellationRating
6.7
7,756 reviews
Search British Airways flights
United AirlinesPriceFrom $603Free CancellationRating
7.4
9,336 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $651Free CancellationRating
6.7
1,151 reviews
Search ITA Airways flights
Air CanadaPriceFrom $771Free CancellationRating
7.1
10,734 reviews
Search Air Canada 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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