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$247+ Cheap flights from San Francisco (SFO) to Bulgaria

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOF
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from San Francisco to Bulgaria

Keep the following information in mind while searching for San Francisco to Bulgaria flight deals. Data was last updated July 30, 2025.

Round-trip from

$553
(Justfly.com)

One-way from

$247
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,092
From San Francisco to Bulgaria
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One-way flight from San Francisco to Bulgaria
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Highest demand for flights based on searches. 28% potential increase in price ($347 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($63 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Francisco to Bulgaria

Cheapest flights from San Francisco to Bulgaria
Explore the most affordable flight options available from San Francisco to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Justfly.com deal was found by Cheapflights users on 7/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:45 pmSFO - SOF
1 stop27h 50mTurkish Airlines
Tue 8/263:35 pmSOF - SFO
1 stop29h 00mTurkish Airlines
Deal found 7/30$553
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/279:40 pmSFO - SOF
1 stop37h 30mBritish Airways
Mon 11/105:25 pmSOF - SFO
1 stop35h 20mBritish Airways
Deal found 7/29$593
This Justfly.com deal was found by Cheapflights users on 7/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:40 pmSFO - SOF
1 stop15h 05mMultiple Airlines
Wed 12/106:15 amSOF - SFO
2 stops21h 10mMultiple Airlines
Deal found 7/29$595
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 12/289:40 pmSFO - SOF
1 stop15h 05mLufthansa
Sun 1/111:55 pmSOF - SFO
1 stop15h 40mLufthansa
Deal found 7/28$597
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:30 pmSFO - SOF
1 stop23h 15mUnited Airlines
Wed 11/126:15 amSOF - SFO
2 stops25h 07mUnited Airlines
Deal found 7/28$601
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:25 amSFO - SOF
2 stops23h 50mAir Canada
Fri 12/126:15 amSOF - SFO
2 stops25h 07mAir Canada
Deal found 7/28$625
This Austrian Airlines deal was found by Cheapflights users on 7/30. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:40 pmSFO - VAR
2 stops31h 35mAustrian Airlines
Mon 12/84:00 pmVAR - SFO
2 stops39h 34mAustrian Airlines
Deal found 7/30$647
This FlightHub deal was found by Cheapflights users on 7/30. 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.
Mon 12/16:50 pmSFO - VAR
1 stop28h 45mTurkish Airlines
Tue 12/910:25 amVAR - SFO
1 stop16h 20mTurkish Airlines
Deal found 7/30$653
This Lufthansa deal was found by Cheapflights users on 7/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:40 pmSFO - VAR
2 stops31h 35mLufthansa
Tue 12/94:00 pmVAR - SFO
2 stops30h 40mLufthansa
Deal found 7/30$658
This Austrian Airlines deal was found by Cheapflights users on 7/30. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:00 amSFO - BOJ
2 stops19h 20mAustrian Airlines
Sat 9/204:00 pmBOJ - SFO
2 stops30h 40mAustrian Airlines
Deal found 7/30$1,189
This Justfly.com deal was found by Cheapflights users on 7/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/309:05 pmSFO - VAR
1 stop25h 55mMultiple Airlines
Sun 8/310:20 amVAR - SFO
1 stop15h 50mMultiple Airlines
Deal found 7/30$1,487

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from San Francisco to Bulgaria that are best for you.

Fly from

San Francisco

Fly to

Bulgaria

Route

Depart

Return

Price

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 8/11

6:45 pm-8:35 am

1 stop27h 50m

Sofia

Tue 8/26

3:35 pm-10:35 am

1 stop29h 00m

$553

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 10/27

9:40 pm-8:10 pm

1 stop37h 30m

Sofia

Mon 11/10

5:25 pm-6:45 pm

1 stop35h 20m

$593

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 11/26

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 12/10

6:15 am-5:25 pm

2 stops21h 10m

$595

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 12/28

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Sun 1/11

1:55 pm-7:35 pm

1 stop15h 40m

$597

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 10/29

2:30 pm-10:45 pm

1 stop23h 15m

Sofia

Wed 11/12

6:15 am-9:22 pm

2 stops25h 07m

$601

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Fri 11/28

8:25 am-6:15 pm

2 stops23h 50m

Sofia

Fri 12/12

6:15 am-9:22 pm

2 stops25h 07m

$625

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Wed 1/7

2:40 pm-5:20 pm

1 stop16h 40m

Varna

Thu 1/15

6:05 pm-12:40 pm

1 stop28h 35m

$627

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 1/6

12:00 pm-3:15 pm

2 stops41h 15m

Varna

Wed 1/14

4:00 pm-8:25 pm

2 stops38h 25m

$634

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Mon 12/1

6:50 pm-9:35 am

1 stop28h 45m

Varna

Tue 12/9

10:25 am-4:45 pm

1 stop16h 20m

$653

San FranciscoBurgas

SFO - BOJ

SFOBOJ

San Francisco

Sat 9/13

7:00 am-12:20 pm

2 stops19h 20m

Bourgas

Sat 9/20

4:00 pm-12:40 pm

2 stops30h 40m

$1,189

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 results
1
2

Best time to book a flight from San Francisco to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from San Francisco 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 San Francisco to Bulgaria

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

Currently, November is the cheapest month in which you can book a flight from San Francisco to Bulgaria (average of $632). Flying from San Francisco to Bulgaria in June is currently the most expensive (average of $1,187). 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.

What is the cheapest time of day to fly from SFO to BG?

Find hourly flight availability from San Francisco to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from San Francisco to Bulgaria, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with Austrian Airlines, Air France, and SWISS from San Francisco to Bulgaria by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
823 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
823 reviews
Austrian Airlines
7.6
Good
823 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Air France
7.5
Good
1,465 reviews
Austrian Airlines
7.6
Good
823 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,686 reviews
Austrian Airlines
7.6
Good
823 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,896 reviews
Austrian Airlines
7.6
Good
823 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Turkish Airlines
7.3
Good
3,928 reviews
Austrian Airlines
7.6
Good
823 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Bulgaria. 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 from for flights from San Francisco to Bulgaria?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Bulgaria.

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

    The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as $419. However, be on the lookout for offers from Air France and SWISS, as they are both options that can get you from San Francisco to Bulgaria for a low price.

  • What are the most popular routes from San Francisco to Bulgaria?

    The most popular flight routes from San Francisco to Bulgaria are San Francisco - Sofia, San Francisco - Varna and San Francisco - Bourgas.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Bulgaria 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 San Francisco to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from San Francisco to Bulgaria (average of $632). Flying from San Francisco to Bulgaria in June is currently the most expensive (average of $1,187). 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

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Top 6 airlines flying from San Francisco to Bulgaria

Discover the top 6 airlines that operate flights from San Francisco to Bulgaria. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$543Average$1,153FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$578Average$605FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$627Average$950FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$646Average$1,018FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$652Average$1,154FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$842Average$1,133FlexibilityNo cancel feeOn-time67%

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