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$350+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOF
Apr 27 — May 41
Sun 4/27
Sun 5/4
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 April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$722
(Turkish Airlines)

One-way from

$350
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$663
Provider with most accurate pricing for San Francisco-Sofia flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Sofia flights.
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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. 31% potential increase in price ($390 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 22, 2025.

This FlightHub deal was found by Cheapflights users on 4/21. 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.
Sun 9/216:45 pmSFO - SOF
1 stop34h 00mTurkish Airlines
Sun 10/59:25 amSOF - SFO
1 stop35h 10mTurkish Airlines
Deal found 4/21$718
This SWISS deal was found by Cheapflights users on 4/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:30 pmSFO - SOF
2 stops30h 30mSWISS
Tue 9/21:15 pmSOF - SFO
1 stop36h 55mSWISS
Deal found 4/21$724
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 4/298:00 pmSFO - SOF
1 stop18h 30mMultiple Airlines
Tue 5/611:55 amSOF - SFO
2 stops34h 34mMultiple Airlines
Deal found 4/21$726
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 8/191:00 pmSFO - SOF
2 stops19h 40mUnited Airlines
Tue 9/212:45 pmSOF - SFO
2 stops19h 49mUnited Airlines
Deal found 4/21$748
This oojo deal was found by Cheapflights users on 4/21. 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 8/2211:59 pmSFO - SOF
2 stops34h 21mBritish Airways
Fri 9/52:20 pmSOF - SFO
2 stops31h 48mBritish Airways
Deal found 4/21$753
This Expedia deal was found by Cheapflights users on 4/21. 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 8/221:10 pmSFO - SOF
2 stops19h 30mLufthansa
Fri 9/56:15 amSOF - SFO
1 stop16h 25mLufthansa
Deal found 4/21$761
This Vliegwinkel deal was found by Cheapflights users on 4/22. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:50 pmSFO - SOF
2 stops32h 25mAir Canada
Tue 5/206:20 amSOF - SFO
2 stops23h 50mAir Canada
Deal found 4/22$825
This United deal was found by Cheapflights users on 4/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/97:25 amSFO - VAR
2 stops24h 20mMultiple Airlines
Tue 7/19:15 amVAR - SFO
1 stop16h 40mMultiple Airlines
Deal found 4/22$1,004
This FlightHub deal was found by Cheapflights users on 4/21. 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.
Tue 6/33:15 pmSFO - VAR
2 stops50h 05mITA Airways
Mon 6/168:30 amVAR - SFO
2 stops38h 45mITA Airways
Deal found 4/21$1,197
This Lufthansa deal was found by Cheapflights users on 4/21. 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.
Tue 6/31:00 pmSFO - VAR
2 stops21h 45mLufthansa
Fri 6/209:45 amVAR - SFO
2 stops25h 13mLufthansa
Deal found 4/21$1,205
This Austrian Airlines deal was found by Cheapflights users on 4/21. 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.
Sun 6/299:05 pmSFO - VAR
2 stops31h 50mAustrian Airlines
Wed 7/91:35 pmVAR - SFO
2 stops33h 05mAustrian Airlines
Deal found 4/21$1,248
This SWISS deal was found by Cheapflights users on 4/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/307:30 pmSFO - VAR
1 stop14h 30mSWISS
Tue 7/159:00 pmVAR - SFO
1 stop29h 10mSWISS
Deal found 4/21$1,285

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 April 22, 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

Sun 9/21

6:45 pm-2:45 pm

1 stop34h 00m

Sofia

Sun 10/5

9:25 am-10:35 am

1 stop35h 10m

$718

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 8/19

7:30 pm-12:00 pm

2 stops30h 30m

Sofia

Tue 9/2

1:15 pm-4:10 pm

1 stop36h 55m

$724

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/20

2:00 pm-11:00 pm

1 stop23h 00m

Sofia

Wed 9/3

6:00 am-11:09 pm

2 stops27h 09m

$735

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 8/19

1:00 pm-6:40 pm

2 stops19h 40m

Sofia

Tue 9/2

12:45 pm-10:34 pm

2 stops19h 49m

$748

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Fri 8/22

11:59 pm-8:20 pm

2 stops34h 21m

Sofia

Fri 9/5

2:20 pm-12:08 pm

2 stops31h 48m

$753

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Fri 8/22

1:10 pm-6:40 pm

2 stops19h 30m

Sofia

Fri 9/5

6:15 am-12:40 pm

1 stop16h 25m

$761

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 5/5

4:50 pm-11:15 am

2 stops32h 25m

Sofia

Tue 5/20

6:20 am-8:10 pm

2 stops23h 50m

$825

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Mon 6/9

7:25 am-5:45 pm

2 stops24h 20m

Varna

Tue 7/1

9:15 am-3:55 pm

1 stop16h 40m

$1,004

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 6/3

3:15 pm-3:20 am

2 stops50h 05m

Varna

Mon 6/16

8:30 am-1:15 pm

2 stops38h 45m

$1,197

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 6/3

1:00 pm-8:45 pm

2 stops21h 45m

Varna

Fri 6/20

9:45 am-12:58 am

2 stops25h 13m

$1,205

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 26 results
1
2
3

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 $1,243). 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 April 22, 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.

Rainfall in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bulgaria ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bulgaria, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 22, 2025.
Read reviews from past customers who have flown KLM, LOT and Austrian Airlines from San Francisco to Bulgaria. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,331 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,331 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,065 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.6
Good
780 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,582 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,683 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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 British Airways, with whom users have recently found tickets for as low as $476. However, be on the lookout for offers from Air Canada and KLM, 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 $1,243). 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 7 airlines flying from San Francisco to Bulgaria

Discover the top 7 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$522Average$1,324FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$578Average$657FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$585Average$847FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$632Average$1,196FlexibilityNo cancel feeOn-time69%
SWISSCheapest$678Average$1,018FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$679Average$1,172FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$842Average$1,138FlexibilityNo cancel feeOn-time67%

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