HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$494+ Cheap flights from Bulgaria to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SFO
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bulgaria to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Bulgaria to San Francisco

Cheapest flights from Bulgaria to San Francisco
Explore the most affordable flight options available from Bulgaria to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:30 pm
SOF
-
SFO
2 stops39h 25m
Multiple Airlines
Tue 4/147:40 pm
SFO
-
SOF
1 stop28h 00m
Multiple Airlines
Deal found 1/20$557
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:30 pm
SOF
-
SFO
2 stops39h 25m
Multiple Airlines
Wed 4/159:05 pm
SFO
-
SOF
1 stop16h 05m
Multiple Airlines
Deal found 1/20$583
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:35 pm
SOF
-
SFO
2 stops49h 56m
Multiple Airlines
Wed 4/299:05 pm
SFO
-
SOF
1 stop16h 05m
Multiple Airlines
Deal found 1/19$609
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:05 am
SOF
-
SFO
1 stop17h 50m
Multiple Airlines
Tue 4/147:40 pm
SFO
-
SOF
1 stop28h 00m
Multiple Airlines
Deal found 1/20$638
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:05 am
SOF
-
SFO
1 stop17h 50m
Multiple Airlines
Wed 4/159:05 pm
SFO
-
SOF
1 stop16h 05m
Multiple Airlines
Deal found 1/20$665
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:10 am
SOF
-
SFO
2 stops21h 45m
Multiple Airlines
Tue 4/147:40 pm
SFO
-
SOF
1 stop28h 00m
Multiple Airlines
Deal found 1/19$686
This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/54:00 pm
VAR
-
SFO
3 stops34h 05m
Multiple Airlines
Mon 2/98:25 am
SFO
-
VAR
2 stops24h 35m
Multiple Airlines
Deal found 1/20$910
This Expedia deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/174:00 pm
VAR
-
SFO
2 stops30h 40m
Multiple Airlines
Wed 5/69:05 pm
SFO
-
VAR
1 stop25h 55m
Multiple Airlines
Deal found 1/20$1,001
This FlightHub deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/174:00 pm
VAR
-
SFO
2 stops30h 40m
Lufthansa
Wed 5/67:40 pm
SFO
-
VAR
2 stops27h 20m
Lufthansa
Deal found 1/20$1,013
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:35 am
VAR
-
SFO
1 stop17h 05m
Turkish Airlines
Wed 5/66:45 pm
SFO
-
VAR
1 stop16h 35m
Turkish Airlines
Deal found 1/20$1,054
This Mytrip deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/410:00 am
VAR
-
SFO
1 stop16h 45m
Turkish Airlines
Sun 2/86:50 pm
SFO
-
VAR
1 stop15h 45m
Turkish Airlines
Deal found 1/19$1,111
This Gotogate deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:05 pm
VAR
-
SFO
1 stop28h 35m
Lufthansa
Mon 2/99:25 pm
SFO
-
VAR
2 stops31h 50m
Lufthansa
Deal found 1/20$1,214

Find flight deals from Bulgaria to San Francisco

Keep the following information in mind while searching for Bulgaria to San Francisco flight deals. Data was last updated January 20, 2026.

Most accurate provider

OneTravel
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$609
(Kiwi.com)

One-way from

$494
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$941
Provider with most accurate pricing for Sofia-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-San Francisco flights.
Search Deals
From Bulgaria to San Francisco
Search Deals
One-way flight from Bulgaria to San Francisco
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bulgaria to San Francisco 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, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from Bulgaria to San Francisco that are best for you.

Fly from

Bulgaria

Fly to

San Francisco

Route

Depart

Return

Price

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 4/1

12:30 pm-5:55 pm

2 stops39h 25m

San Francisco

Tue 4/14

7:40 pm-9:40 am

1 stop28h 00m

$557

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Mon 3/9

2:35 pm-7:31 am

2 stops49h 56m

San Francisco

Wed 4/29

9:05 pm-11:10 pm

1 stop16h 05m

$609

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 4/2

5:00 am-5:55 pm

2 stops22h 55m

San Francisco

Tue 4/14

7:40 pm-1:30 am

1 stop19h 50m

$663

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Tue 2/3

10:45 pm-8:10 pm

2 stops31h 25m

San Francisco

Fri 2/6

9:25 pm-10:45 pm

1 stop15h 20m

$742

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 4/1

9:40 pm-5:55 pm

1 stop30h 15m

San Francisco

Mon 4/13

8:30 pm-9:30 am

2 stops27h 00m

$749

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Fri 4/3

12:40 pm-5:35 pm

2 stops38h 55m

San Francisco

Tue 4/14

7:40 pm-9:40 am

1 stop28h 00m

$771

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 4/1

12:30 pm-5:55 pm

2 stops39h 25m

San Francisco

Sat 4/11

8:30 pm-12:20 am

1 stop17h 50m

$795

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Fri 1/30

7:00 am-8:58 pm

2 stops23h 58m

San Francisco

Thu 2/12

1:55 pm-2:05 pm

1 stop14h 10m

$824

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 4/2

7:00 am-4:10 pm

2 stops19h 10m

San Francisco

Mon 4/13

8:10 pm-2:00 pm

1 stop31h 50m

$829

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 4/2

7:00 am-6:19 pm

2 stops21h 19m

San Francisco

Sun 4/12

3:05 pm-2:00 pm

1 stop36h 55m

$829

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Bulgaria to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Bulgaria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bulgaria to San Francisco

What is the cheapest month to book a flight from Bulgaria to San Francisco?

Currently, October is the cheapest month in which you can book a flight from Bulgaria to San Francisco (average of $492). Flying from Bulgaria to San Francisco in August is currently the most expensive (average of $951). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated January 20, 2026.
Peruse reviews from past customers who have flown with United Airlines, Turkish Airlines, and Lufthansa from Bulgaria to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,188 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,188 reviews
United Airlines
7.4
Good
9,188 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Turkish Airlines
7.3
Good
4,196 reviews
United Airlines
7.4
Good
9,188 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Lufthansa
6.8
Okay
7,736 reviews
United Airlines
7.4
Good
9,188 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Bulgaria to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Bulgaria?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Bulgaria. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • How long is the flight from Bulgaria to San Francisco?

    Airlines like Turkish Airlines and Lufthansa fly from Bulgaria to San Francisco in about 16h 45m. The time it takes to get you to your destination can typically vary by up to 20h 50m. Bulgaria and San Francisco are separated by a distance of 6541 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Bulgaria to San Francisco one-way?

    $743 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Lufthansa and United Airlines, with prices starting from $759 and $861, respectively.

  • Can I find deals for flights from Bulgaria to San Francisco that include hotel bookings?

    Yes. In addition to deals on Bulgaria to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bulgaria to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bulgaria to San Francisco.

  • Can I find deals for business class flights from Bulgaria to San Francisco?

    Yes. Cheapflights offers flight deals from Bulgaria to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bulgaria to San Francisco?

    Currently, October is the cheapest month in which you can book a flight from Bulgaria to San Francisco (average of $492). Flying from Bulgaria to San Francisco in August is currently the most expensive (average of $951). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Roseville
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Vacaville
Turlock
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Davis
Hollister
Redwood City
Union City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bulgaria to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Los Angeles flights
Frankfurt to Los Angeles flights
Frankfurt to San Francisco flights
Orly to Los Angeles flights
Heathrow to Los Angeles flights
Charles de Gaulle to San Francisco flights
Frankfurt to Las Vegas flights
Frederic Chopin to Los Angeles flights
Heathrow to Las Vegas flights
Heathrow to San Francisco flights
Beauvais-Tille to Los Angeles flights
Gatwick to Los Angeles flights
Charles de Gaulle to Las Vegas flights
Munich to Los Angeles flights
Frankfurt to Ontario flights
London City to Los Angeles flights
Frankfurt to Santa Ana flights
Orly to Las Vegas flights
Vienna to Los Angeles flights
Stansted to Los Angeles flights
Zurich to Los Angeles flights
Munich to San Francisco flights
Frankfurt to San Jose flights
Frankfurt to Oakland flights
Amsterdam to Los Angeles flights
Madrid to Los Angeles flights
Modlin to Los Angeles flights
Barcelona-El Prat to Los Angeles flights
Heathrow to Ontario flights
Charles de Gaulle to Santa Ana flights
Duesseldorf Intl to Los Angeles flights
Malpensa to Los Angeles flights
Istanbul to Los Angeles flights
Gatwick to San Francisco flights
Orly to San Francisco flights
Gatwick to Las Vegas flights
Linate to Los Angeles flights
Charles de Gaulle to Burbank flights
Zurich to San Francisco flights
London City to Las Vegas flights
London City to San Francisco flights
Frankfurt-Hahn to Los Angeles flights
Luton to Los Angeles flights
Heathrow to Santa Ana flights

Top 3 airlines flying from Bulgaria to San Francisco

Discover the top 3 airlines that operate flights from Bulgaria to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$712Average$878FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$736Average$901FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$813Average$916FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.