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Cheap flights from San Francisco to Bulgaria from $269

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 9/28. 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

Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:00 am - 12:40 pmSOF-SFO
16h 40m1 stop
$514Lufthansa
Find Deal
Tue, Nov 4 - Tue, Nov 18
Multiple Airlines Logo
7:30 pm - 12:30 pmSFO-SOF
31h 00m1 stop
Multiple Airlines Logo
6:10 am - 9:22 pmSOF-SFO
25h 12m2 stops
$526Multiple Airlines
Find Deal
Sun, Oct 12 - Fri, Nov 14
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:10 am - 12:40 pmSOF-SFO
16h 30m1 stop
$527Lufthansa
Find Deal
Wed, Nov 5 - Wed, Nov 19
Multiple Airlines Logo
8:25 am - 1:50 pmSFO-SOF
19h 25m2 stops
Multiple Airlines Logo
6:10 am - 12:40 pmSOF-SFO
16h 30m1 stop
$541Multiple Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
British Airways Logo
8:40 pm - 8:10 pmSFO-SOF
37h 30m1 stop
British Airways Logo
5:25 pm - 6:45 pmSOF-SFO
35h 20m1 stop
$548British Airways
Find Deal
Mon, Nov 3 - Mon, Nov 17
United Airlines Logo
1:30 pm - 10:45 pmSFO-SOF
23h 15m1 stop
United Airlines Logo
6:00 am - 9:22 pmSOF-SFO
25h 22m2 stops
$551United Airlines
Find Deal
Wed, Nov 5 - Tue, Nov 25
Turkish Airlines Logo
12:40 pm - 8:25 pmSFO-SOF
21h 45m1 stop
Turkish Airlines Logo
9:25 am - 4:40 pmSOF-SFO
17h 15m1 stop
$590Turkish Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 22
Air Canada Logo
8:25 am - 1:10 pmSFO-SOF
19h 45m2 stops
Air Canada Logo
6:10 am - 5:25 pmSOF-SFO
21h 15m2 stops
$595Air Canada
Find Deal
Sun, Oct 26 - Sun, Nov 16
United Airlines Logo
8:25 am - 12:00 pmSFO-SOF
17h 35m2 stops
United Airlines Logo
6:10 am - 12:40 pmSOF-SFO
16h 30m1 stop
$599United Airlines
Find Deal
Wed, Oct 22 - Sun, Nov 16
Turkish Airlines Logo
12:40 pm - 8:25 pmSFO-SOF
21h 45m1 stop
Turkish Airlines Logo
9:15 pm - 10:35 amSOF-SFO
23h 20m1 stop
$608Turkish Airlines
Find Deal
Sun, Oct 5 - Thu, Oct 23

United Airlines flights from San Francisco to Bulgaria

Our best United Airlines deals on San Francisco to Bulgaria flight tickets
United Airlines
Nov 5
SFO1:30 pmSan Francisco
23h 15m
1 stop
SOF10:45 pmSofia
Nov 25
SOF6:00 amSofia
25h 22m
2 stops
SFO9:22 pmSan Francisco
$551
Find similar
United Airlines
Oct 22
SFO8:25 amSan Francisco
17h 35m
2 stops
SOF12:00 pmSofia
Nov 16
SOF6:10 amSofia
16h 30m
1 stop
SFO12:40 pmSan Francisco
$599
Find similar
United Airlines
Oct 8
SFO9:05 pmSan Francisco
15h 55m
1 stop
SOF11:00 pmSofia
Oct 22
SOF6:15 amSofia
19h 13m
2 stops
SFO3:28 pmSan Francisco
$606
Find similar

Lufthansa flights from San Francisco to Bulgaria

Our best Lufthansa deals on San Francisco to Bulgaria flight tickets
Lufthansa
Nov 4
SFO9:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Nov 18
SOF6:00 amSofia
16h 40m
1 stop
SFO12:40 pmSan Francisco
$514
Find similar
Lufthansa
Nov 5
SFO9:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Nov 19
SOF6:10 amSofia
16h 30m
1 stop
SFO12:40 pmSan Francisco
$527
Find similar
Lufthansa
Oct 12
SFO9:05 pmSan Francisco
15h 55m
1 stop
SOF11:00 pmSofia
Nov 14
SOF6:10 amSofia
16h 30m
1 stop
SFO12:40 pmSan Francisco
$546
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 September 17, 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 11/4

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Tue 11/18

6:00 am-12:40 pm

1 stop16h 40m

$514

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 10/12

7:30 pm-12:30 pm

1 stop31h 00m

Sofia

Fri 11/14

6:10 am-9:22 pm

2 stops25h 12m

$526

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 11/5

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 11/19

6:10 am-12:40 pm

1 stop16h 30m

$527

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 11/5

8:25 am-1:50 pm

2 stops19h 25m

Sofia

Wed 11/19

6:10 am-12:40 pm

1 stop16h 30m

$541

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 11/3

8:40 pm-8:10 pm

1 stop37h 30m

Sofia

Mon 11/17

5:25 pm-6:45 pm

1 stop35h 20m

$548

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 11/5

1:30 pm-10:45 pm

1 stop23h 15m

Sofia

Tue 11/25

6:00 am-9:22 pm

2 stops25h 22m

$551

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 10/8

12:40 pm-8:25 pm

1 stop21h 45m

Sofia

Wed 10/22

9:25 am-4:40 pm

1 stop17h 15m

$590

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 10/26

8:25 am-1:10 pm

2 stops19h 45m

Sofia

Sun 11/16

6:10 am-5:25 pm

2 stops21h 15m

$595

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 10/22

8:25 am-12:00 pm

2 stops17h 35m

Sofia

Sun 11/16

6:10 am-12:40 pm

1 stop16h 30m

$599

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 10/5

12:40 pm-8:25 pm

1 stop21h 45m

Sofia

Thu 10/23

9:15 pm-10:35 am

1 stop23h 20m

$608

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 $627.

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 $841 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 $684 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

Direct flights

None
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
3,965 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $627Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
LufthansaPriceFrom $628Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
ITA AirwaysPriceFrom $652Free CancellationRating
6.7
1,036 reviews
Search ITA Airways flights
Air CanadaPriceFrom $1,023Free CancellationRating
7.1
10,000 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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