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$351+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOF
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$637
(oojo)

One-way from

$351
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$634
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
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($407 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:45 pmSFO - SOF
1 stop34h 00mTurkish Airlines
Wed 9/109:15 pmSOF - SFO
1 stop29h 25mTurkish Airlines
Deal found 3/30$637
This United Airlines deal was found by Cheapflights users on 3/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/301:45 pmSFO - SOF
1 stop18h 55mUnited Airlines
Sun 4/66:00 amSOF - SFO
1 stop18h 35mUnited Airlines
Deal found 3/29$686
This Travelocity deal was found by Cheapflights users on 3/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/159:20 amSFO - SOF
2 stops21h 10mMultiple Airlines
Wed 4/3010:30 amSOF - SFO
2 stops20h 43mMultiple Airlines
Deal found 3/30$730
This Booking.com deal was found by Cheapflights users on 3/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:10 amSFO - SOF
2 stops25h 30mAir Canada
Tue 10/146:20 amSOF - SFO
2 stops26h 39mAir Canada
Deal found 3/31$805
This British Airways deal was found by Cheapflights users on 3/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2911:59 pmSFO - SOF
2 stops34h 41mBritish Airways
Mon 10/138:00 pmSOF - SFO
1 stop27h 50mBritish Airways
Deal found 3/30$808
This FlightHub deal was found by Cheapflights users on 3/30. 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 5/197:30 pmSFO - SOF
1 stop28h 35mSWISS
Mon 6/23:30 pmSOF - SFO
1 stop34h 40mSWISS
Deal found 3/30$809
This Lufthansa deal was found by Cheapflights users on 3/30. 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 9/71:10 pmSFO - SOF
2 stops19h 30mLufthansa
Fri 10/36:15 amSOF - SFO
2 stops27h 54mLufthansa
Deal found 3/30$832
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:45 pmSFO - VAR
1 stop16h 35mTurkish Airlines
Tue 4/229:35 amVAR - SFO
1 stop35h 00mTurkish Airlines
Deal found 3/30$860
This Gurufare deal was found by Cheapflights users on 3/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:00 amSFO - SOF
2 stops46h 10mITA Airways
Wed 5/146:00 pmSOF - SFO
1 stop29h 15mITA Airways
Deal found 3/30$979
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:45 pmSFO - SOF
1 stop14h 15mKLM
Tue 9/307:00 amSOF - SFO
2 stops23h 18mKLM
Deal found 3/30$988
This Gurufare deal was found by Cheapflights users on 3/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/159:05 pmSFO - VAR
2 stops32h 10mAustrian Airlines
Tue 4/224:00 pmVAR - SFO
2 stops37h 00mAustrian Airlines
Deal found 3/30$1,054
This Gotogate deal was found by Cheapflights users on 3/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/152:40 pmSFO - VAR
2 stops38h 35mMultiple Airlines
Tue 4/229:15 amVAR - SFO
1 stop37h 25mMultiple Airlines
Deal found 3/30$1,058

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 March 31, 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

Tue 7/29

6:45 pm-2:45 pm

1 stop34h 00m

Sofia

Wed 9/10

9:15 pm-4:40 pm

1 stop29h 25m

$637

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 4/15

9:20 am-4:30 pm

2 stops21h 10m

Sofia

Wed 4/30

10:30 am-9:13 pm

2 stops20h 43m

$730

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 9/7

11:45 pm-5:50 pm

2 stops32h 05m

Sofia

Thu 10/2

6:15 am-11:11 am

2 stops38h 56m

$807

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 5/19

7:30 pm-10:05 am

1 stop28h 35m

Sofia

Mon 6/2

3:30 pm-4:10 pm

1 stop34h 40m

$809

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/6

9:05 pm-11:00 pm

1 stop15h 55m

Sofia

Wed 8/27

6:15 am-12:40 pm

1 stop16h 25m

$818

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 9/7

1:10 pm-6:40 pm

2 stops19h 30m

Sofia

Fri 10/3

6:15 am-12:09 am

2 stops27h 54m

$832

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 4/15

6:45 pm-9:20 pm

1 stop16h 35m

Varna

Tue 4/22

9:35 am-10:35 am

1 stop35h 00m

$860

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 4/30

9:00 am-5:10 pm

2 stops46h 10m

Sofia

Wed 5/14

6:00 pm-1:15 pm

1 stop29h 15m

$979

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 9/11

1:45 pm-2:00 pm

1 stop14h 15m

Sofia

Tue 9/30

7:00 am-8:18 pm

2 stops23h 18m

$988

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 7/28

11:50 pm-8:40 pm

2 stops34h 50m

Sofia

Mon 8/11

8:00 pm-1:50 pm

1 stop27h 50m

$993

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 27 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 March 31, 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 March 31, 2025.
KLM
7.8
Good
1,321 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Crew

8.4

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
1,321 reviews
KLM
7.8
Good
1,321 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Crew

8.4

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
770 reviews
KLM
7.8
Good
1,321 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Crew

8.4

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
1,570 reviews
KLM
7.8
Good
1,321 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Crew

8.4

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
8,614 reviews
KLM
7.8
Good
1,321 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Crew

8.4

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.
Turkish Airlines
7.3
Good
3,748 reviews
KLM
7.8
Good
1,321 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Crew

8.4

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 ITA Airways, with whom users have recently found tickets for as low as $697. However, be on the lookout for offers from Air Serbia and Turkish Airlines, 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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Alternative routes for San Francisco to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$522Average$1,324FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$578Average$657FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$588Average$1,174FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$632Average$1,197FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$689Average$1,184FlexibilityNo cancel feeOn-time76%
SWISSCheapest$705Average$1,018FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$842Average$1,138FlexibilityNo cancel feeOn-time67%
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