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Cheap flights from San Francisco to Bulgaria from $219

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 5/12. 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.
United Airlines Logo
10:50 pm - 1:00 pm
SFO
-
SOF
28h 10m
2 stops
United Airlines Logo
6:10 am - 4:55 pm
SOF
-
SFO
19h 45m
1 stop
$502United Airlines
Sat, Feb 28 - Wed, Mar 18
SWISS Logo
7:35 pm - 3:00 pm
SFO
-
SOF
33h 25m
1 stop
SWISS Logo
1:05 pm - 4:15 pm
SOF
-
SFO
37h 10m
1 stop
$506SWISS
Wed, Apr 29 - Tue, Oct 6
United Airlines Logo
10:50 pm - 1:00 pm
SFO
-
SOF
28h 10m
2 stops
United Airlines Logo
2:25 pm - 9:40 am
SOF
-
SFO
28h 15m
2 stops
$510United Airlines
Sat, Feb 28 - Wed, Mar 18
United Airlines Logo
12:25 pm - 6:40 pm
SFO
-
SOF
20h 15m
2 stops
United Airlines Logo
6:10 am - 7:00 pm
SOF
-
SFO
22h 50m
1 stop
$518United Airlines
Wed, Apr 22 - Tue, Oct 6
United Airlines Logo
9:05 pm - 11:10 pm
SFO
-
SOF
16h 05m
1 stop
United Airlines Logo
6:10 am - 6:38 pm
SOF
-
SFO
22h 28m
2 stops
$520United Airlines
Wed, Apr 29 - Tue, Oct 6
United Airlines Logo
9:05 pm - 11:10 pm
SFO
-
SOF
16h 05m
1 stop
United Airlines Logo
8:00 am - 9:28 pm
SOF
-
SFO
23h 28m
2 stops
$521United Airlines
Wed, Apr 29 - Tue, Oct 6
Multiple Airlines Logo
9:40 pm - 10:45 pm
SFO
-
SOF
15h 05m
1 stop
Multiple Airlines Logo
6:00 am - 9:22 pm
SOF
-
SFO
24h 22m
2 stops
$528Multiple Airlines
Thu, Mar 5 - Thu, Mar 12
Lufthansa Logo
9:25 pm - 10:45 pm
SFO
-
SOF
15h 20m
1 stop
Lufthansa Logo
6:10 am - 1:40 pm
SOF
-
SFO
16h 30m
1 stop
$536Lufthansa
Sat, Feb 28 - Wed, Mar 18
Turkish Airlines Logo
12:55 pm - 2:45 am
SFO
-
VAR
27h 50m
1 stop
Turkish Airlines Logo
9:35 am - 4:40 pm
VAR
-
SFO
17h 05m
1 stop
$714Turkish Airlines
Fri, Apr 24 - Tue, Apr 28
Austrian Airlines Logo
2:40 pm - 3:15 pm
SFO
-
VAR
38h 35m
2 stops
Austrian Airlines Logo
4:00 pm - 7:35 pm
VAR
-
SFO
37h 35m
2 stops
$827Austrian Airlines
Thu, Feb 12 - Thu, Feb 19

SWISS flights from San Francisco to Bulgaria

Our best SWISS deals on San Francisco to Bulgaria flight tickets
SWISS
Apr 29
SFO7:35 pmSan Francisco
33h 25m
1 stop
SOF3:00 pmSofia
Oct 6
SOF1:05 pmSofia
37h 10m
1 stop
SFO4:15 pmSan Francisco
$506
SWISS
May 3
SFO7:35 pmSan Francisco
30h 40m
1 stop
SOF12:15 pmSofia
May 16
SOF1:45 pmSofia
36h 30m
1 stop
SFO4:15 pmSan Francisco
$563

United Airlines flights from San Francisco to Bulgaria

Our best United Airlines deals on San Francisco to Bulgaria flight tickets
United Airlines
Feb 28
SFO10:50 pmSan Francisco
28h 10m
2 stops
SOF1:00 pmSofia
Mar 18
SOF6:10 amSofia
19h 45m
1 stop
SFO4:55 pmSan Francisco
$502
United Airlines
Feb 28
SFO10:50 pmSan Francisco
28h 10m
2 stops
SOF1:00 pmSofia
Mar 18
SOF2:25 pmSofia
28h 15m
2 stops
SFO9:40 amSan Francisco
$510
United Airlines
Apr 22
SFO12:25 pmSan Francisco
20h 15m
2 stops
SOF6:40 pmSofia
Oct 6
SOF6:10 amSofia
22h 50m
1 stop
SFO7:00 pmSan Francisco
$518

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 January 21, 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

Sat 2/28

10:50 pm-1:00 pm

2 stops28h 10m

Sofia

Wed 3/18

6:10 am-4:55 pm

1 stop19h 45m

$502

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 4/29

7:35 pm-3:00 pm

1 stop33h 25m

Sofia

Tue 10/6

1:05 pm-4:15 pm

1 stop37h 10m

$506

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sat 2/28

10:50 pm-1:00 pm

2 stops28h 10m

Sofia

Wed 3/18

2:25 pm-9:40 am

2 stops28h 15m

$510

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 4/22

12:25 pm-6:40 pm

2 stops20h 15m

Sofia

Tue 10/6

6:10 am-7:00 pm

1 stop22h 50m

$518

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 4/29

9:05 pm-11:10 pm

1 stop16h 05m

Sofia

Tue 10/6

6:10 am-6:38 pm

2 stops22h 28m

$520

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 4/29

9:05 pm-11:10 pm

1 stop16h 05m

Sofia

Tue 10/6

8:00 am-9:28 pm

2 stops23h 28m

$521

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 3/5

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Thu 3/12

6:00 am-9:22 pm

2 stops24h 22m

$528

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sat 2/28

9:25 pm-10:45 pm

1 stop15h 20m

Sofia

Wed 3/18

6:10 am-1:40 pm

1 stop16h 30m

$536

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Fri 4/24

12:55 pm-2:45 am

1 stop27h 50m

Varna

Tue 4/28

9:35 am-4:40 pm

1 stop17h 05m

$714

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Thu 2/12

2:40 pm-3:15 pm

2 stops38h 35m

Varna

Thu 2/19

4:00 pm-7:35 pm

2 stops37h 35m

$827

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 $623.

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 $807 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 53% 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 $542Free CancellationRating
7.3
4,200 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $563Free CancellationRating
6.8
7,738 reviews
Search Lufthansa flights
British AirwaysPriceFrom $594Free CancellationRating
6.7
7,689 reviews
Search British Airways flights
United AirlinesPriceFrom $616Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $651Free CancellationRating
6.7
1,130 reviews
Search ITA Airways flights
Air CanadaPriceFrom $771Free CancellationRating
7.1
10,646 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.

An easier way to manage your Bulgaria trip

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