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Cheap flights from San Francisco to Bulgaria from $454

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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Find the cheapest flights from San Francisco to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:00 am - 5:36 pmSOF-SFO
21h 36m2 stops
$562Lufthansa
Find Deal
Tue, Jan 6 - Tue, Jan 20
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:10 am - 3:55 pmSOF-SFO
19h 45m1 stop
$569Lufthansa
Find Deal
Wed, Jan 14 - Wed, Jan 28
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:25 am - 12:40 pmSOF-SFO
16h 15m1 stop
$570Lufthansa
Find Deal
Sat, Jan 17 - Sat, Jan 31
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:00 am - 3:55 pmSOF-SFO
19h 55m1 stop
$571Lufthansa
Find Deal
Tue, Jan 6 - Tue, Jan 20
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
2:00 pm - 6:55 pmSOF-SFO
14h 55m1 stop
$577Lufthansa
Find Deal
Thu, Jan 15 - Thu, Jan 29
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:05 am - 12:40 pmSOF-SFO
16h 35m2 stops
$578Lufthansa
Find Deal
Wed, Jan 14 - Wed, Jan 28
Multiple Airlines Logo
12:50 pm - 6:00 pmSFO-SOF
19h 10m2 stops
Multiple Airlines Logo
6:00 am - 3:55 pmSOF-SFO
19h 55m1 stop
$579Multiple Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 27
Lufthansa Logo
6:50 pm - 10:45 pmSFO-SOF
17h 55m1 stop
Lufthansa Logo
2:20 pm - 8:10 pmSOF-SFO
15h 50m1 stop
$582Lufthansa
Find Deal
Sun, Jan 11 - Mon, Feb 9
Lufthansa Logo
6:50 pm - 10:45 pmSFO-SOF
17h 55m1 stop
Lufthansa Logo
2:35 pm - 8:10 pmSOF-SFO
15h 35m1 stop
$583Lufthansa
Find Deal
Fri, Jan 16 - Fri, Jan 30
Lufthansa Logo
6:50 pm - 10:45 pmSFO-SOF
17h 55m1 stop
Lufthansa Logo
6:10 am - 3:55 pmSOF-SFO
19h 45m1 stop
$585Lufthansa
Find Deal
Sun, Jan 18 - Sun, Feb 1

Lufthansa flights from San Francisco to Bulgaria

Our best Lufthansa deals on San Francisco to Bulgaria flight tickets
Lufthansa
Nov 29
SFO9:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Dec 12
SOF6:10 amSofia
21h 18m
2 stops
SFO5:28 pmSan Francisco
$561
Find similar
Lufthansa
Jan 6
SFO9:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Jan 20
SOF6:00 amSofia
21h 36m
2 stops
SFO5:36 pmSan Francisco
$562
Find similar
Lufthansa
Jan 14
SFO9:40 pmSan Francisco
15h 05m
1 stop
SOF10:45 pmSofia
Jan 28
SOF6:10 amSofia
19h 45m
1 stop
SFO3:55 pmSan Francisco
$569
Find similar

KLM flights from San Francisco to Bulgaria

Our best KLM deals on San Francisco to Bulgaria flight tickets
KLM
Dec 10
SFO1:55 pmSan Francisco
14h 10m
1 stop
SOF2:05 pmSofia
Jan 14
SOF7:00 amSofia
23h 59m
2 stops
SFO8:59 pmSan Francisco
$632
Find similar
KLM
Mar 12
SFO11:00 amSan Francisco
18h 05m
2 stops
SOF2:05 pmSofia
Apr 1
SOF7:00 amSofia
22h 07m
2 stops
SFO7:07 pmSan Francisco
$635
Find similar
KLM
Mar 12
SFO11:00 amSan Francisco
18h 05m
2 stops
SOF2:05 pmSofia
Mar 30
SOF7:00 amSofia
21h 19m
2 stops
SFO6:19 pmSan Francisco
$637
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 November 25, 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 1/6

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Tue 1/20

6:00 am-5:36 pm

2 stops21h 36m

$562

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/14

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 1/28

6:10 am-3:55 pm

1 stop19h 45m

$569

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sat 1/17

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Sat 1/31

6:25 am-12:40 pm

1 stop16h 15m

$570

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/6

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Tue 1/20

6:00 am-3:55 pm

1 stop19h 55m

$571

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 1/15

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Thu 1/29

2:00 pm-6:55 pm

1 stop14h 55m

$577

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/14

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 1/28

6:05 am-12:40 pm

2 stops16h 35m

$578

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/13

12:50 pm-6:00 pm

2 stops19h 10m

Sofia

Tue 1/27

6:00 am-3:55 pm

1 stop19h 55m

$579

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 1/11

6:50 pm-10:45 pm

1 stop17h 55m

Sofia

Mon 2/9

2:20 pm-8:10 pm

1 stop15h 50m

$582

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Fri 1/16

6:50 pm-10:45 pm

1 stop17h 55m

Sofia

Fri 1/30

2:35 pm-8:10 pm

1 stop15h 35m

$583

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 1/18

6:50 pm-10:45 pm

1 stop17h 55m

Sofia

Sun 2/1

6:10 am-3:55 pm

1 stop19h 45m

$585

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

14h 10m

Direct flights

None
The fastest flight from San Francisco to Bulgaria takes 14h 10m
There are no direct flights from San Francisco to Bulgaria. There are no popular flight routes from San Francisco to Bulgaria.
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  • 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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