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Cheap flights from San Francisco to Bulgaria from $401

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 4/8. 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.
Multiple Airlines Logo
2:40 pm - 10:45 pmSFO-SOF
22h 05m1 stop
Multiple Airlines Logo
6:10 am - 9:22 pmSOF-SFO
25h 12m2 stops
$467Multiple Airlines
Find Deal
Wed, Dec 31 - Wed, Jan 21
Lufthansa Logo
8:25 am - 1:15 pmSFO-SOF
18h 50m2 stops
Lufthansa Logo
6:10 am - 9:35 pmSOF-SFO
25h 25m2 stops
$477Lufthansa
Find Deal
Wed, Dec 31 - Wed, Jan 21
Lufthansa Logo
2:40 pm - 10:45 pmSFO-SOF
22h 05m1 stop
Lufthansa Logo
6:10 am - 3:55 pmSOF-SFO
19h 45m1 stop
$479Lufthansa
Find Deal
Wed, Dec 31 - Wed, Jan 21
British Airways Logo
5:00 pm - 8:10 pmSFO-SOF
42h 10m2 stops
British Airways Logo
5:25 pm - 6:30 pmSOF-SFO
34h 05m2 stops
$483British Airways
Find Deal
Mon, Mar 9 - Mon, Mar 23
Lufthansa Logo
10:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
7:05 pm - 3:50 pmSOF-SFO
29h 45m1 stop
$509Lufthansa
Find Deal
Mon, Mar 9 - Mon, Mar 23
United Airlines Logo
8:25 am - 6:20 pmSFO-SOF
23h 55m2 stops
United Airlines Logo
2:25 pm - 8:10 pmSOF-SFO
15h 45m1 stop
$534United Airlines
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Wed, Jan 21 - Sun, Jan 25
Austrian Airlines Logo
12:50 pm - 3:15 pmSFO-VAR
40h 25m2 stops
Austrian Airlines Logo
4:00 pm - 1:20 pmVAR-SFO
55h 20m2 stops
$537Austrian Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
United Airlines Logo
12:50 pm - 6:20 pmSFO-SOF
19h 30m2 stops
United Airlines Logo
2:25 pm - 1:30 amSOF-SFO
21h 05m2 stops
$551United Airlines
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Wed, Jan 21 - Sun, Jan 25
Multiple Airlines Logo
6:25 pm - 3:15 pmSFO-VAR
35h 50m2 stops
Multiple Airlines Logo
6:05 pm - 4:55 pmVAR-SFO
31h 50m1 stop
$644Multiple Airlines
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Tue, Mar 10 - Thu, Mar 19
Austrian Airlines Logo
6:25 pm - 3:15 pmSFO-VAR
35h 50m2 stops
Austrian Airlines Logo
4:00 pm - 1:40 pmVAR-SFO
30h 40m2 stops
$648Austrian Airlines
Find Deal
Tue, Mar 10 - Tue, Mar 17

Lufthansa flights from San Francisco to Bulgaria

Our best Lufthansa deals on San Francisco to Bulgaria flight tickets
Lufthansa
Dec 31
SFO8:25 amSan Francisco
18h 50m
2 stops
SOF1:15 pmSofia
Jan 21
SOF6:10 amSofia
25h 25m
2 stops
SFO9:35 pmSan Francisco
$477
Find similar
Lufthansa
Dec 31
SFO2:40 pmSan Francisco
22h 05m
1 stop
SOF10:45 pmSofia
Jan 21
SOF6:10 amSofia
19h 45m
1 stop
SFO3:55 pmSan Francisco
$479
Find similar
Lufthansa
Mar 9
SFO10:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Mar 23
SOF7:05 pmSofia
29h 45m
1 stop
SFO3:50 pmSan Francisco
$509
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British Airways flights from San Francisco to Bulgaria

Our best British Airways deals on San Francisco to Bulgaria flight tickets
British Airways
Mar 9
SFO5:00 pmSan Francisco
42h 10m
2 stops
SOF8:10 pmSofia
Mar 23
SOF5:25 pmSofia
34h 05m
2 stops
SFO6:30 pmSan Francisco
$483
Find similar
British Airways
Jan 17
SFO2:37 pmSan Francisco
39h 43m
2 stops
SOF4:20 pmSofia
Jan 31
SOF12:05 pmSofia
21h 07m
2 stops
SFO11:12 pmSan Francisco
$625
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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 November 26, 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

Wed 12/31

2:40 pm-10:45 pm

1 stop22h 05m

Sofia

Wed 1/21

6:10 am-9:22 pm

2 stops25h 12m

$467

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 12/31

8:25 am-1:15 pm

2 stops18h 50m

Sofia

Wed 1/21

6:10 am-9:35 pm

2 stops25h 25m

$477

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 12/31

2:40 pm-10:45 pm

1 stop22h 05m

Sofia

Wed 1/21

6:10 am-3:55 pm

1 stop19h 45m

$479

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 3/9

5:00 pm-8:10 pm

2 stops42h 10m

Sofia

Mon 3/23

5:25 pm-6:30 pm

2 stops34h 05m

$483

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 3/9

10:40 pm-10:45 pm

1 stop15h 05m

Sofia

Mon 3/23

7:05 pm-3:50 pm

1 stop29h 45m

$509

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/21

8:25 am-6:20 pm

2 stops23h 55m

Sofia

Sun 1/25

2:25 pm-8:10 pm

1 stop15h 45m

$534

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 1/28

12:50 pm-3:15 pm

2 stops40h 25m

Varna

Sun 2/1

4:00 pm-1:20 pm

2 stops55h 20m

$537

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/21

12:50 pm-6:20 pm

2 stops19h 30m

Sofia

Sun 1/25

2:25 pm-1:30 am

2 stops21h 05m

$551

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 3/10

6:25 pm-3:15 pm

2 stops35h 50m

Varna

Thu 3/19

6:05 pm-4:55 pm

1 stop31h 50m

$644

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 3/10

6:25 pm-3:15 pm

2 stops35h 50m

Varna

Tue 3/17

4:00 pm-1:40 pm

2 stops30h 40m

$648

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 $816 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 $633 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 $543Free CancellationRating
7.3
4,059 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $652Free CancellationRating
6.7
1,089 reviews
Search ITA Airways flights
Air CanadaPriceFrom $1,023Free CancellationRating
7.1
10,476 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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