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$373+ Cheap flights from Sofia (SOF) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SFO
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Sofia to San Francisco are usually found in February or March, booked 49 days in advance, depart on a Saturday or Thursday and return on a Thursday

Cheap flight deals from Sofia to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$763
(Kiwi.com)

One-way from

$373
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,074
From Sofia to San Francisco
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One-way flight from Sofia to San Francisco
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Highest demand for flights based on searches. 6% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Sofia to San Francisco

Cheapest flights from Sofia to San Francisco
Explore the most affordable flight options available from Sofia to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/245:55 pmSOF - SFO
2 stops30h 35mMultiple Airlines
Tue 10/78:10 pmSFO - SOF
1 stop18h 20mMultiple Airlines
Deal found 8/20$763
This Justfly.com deal was found by Cheapflights users on 8/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/183:35 pmSOF - SFO
1 stop35h 05mTurkish Airlines
Fri 10/36:45 pmSFO - SOF
1 stop27h 50mTurkish Airlines
Deal found 8/21$767
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 9/105:55 pmSOF - SFO
1 stop34h 15mMultiple Airlines
Wed 10/18:45 amSFO - SOF
2 stops31h 45mMultiple Airlines
Deal found 8/21$769
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Sat 9/273:35 pmSOF - SFO
1 stop29h 00mTurkish Airlines
Wed 10/812:40 pmSFO - SOF
1 stop33h 55mTurkish Airlines
Deal found 8/20$776
This oojo deal was found by Cheapflights users on 8/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/43:35 pmSOF - SFO
1 stop29h 00mTurkish Airlines
Sat 10/1112:40 pmSFO - SOF
1 stop33h 55mTurkish Airlines
Deal found 8/19$780
This FlightHub deal was found by Cheapflights users on 8/21. 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.
Wed 9/103:35 pmSOF - SFO
1 stop35h 05mTurkish Airlines
Wed 10/16:45 pmSFO - SOF
1 stop34h 00mTurkish Airlines
Deal found 8/21$782
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Tue 9/308:10 pmSOF - SFO
2 stops37h 49mMultiple Airlines
Tue 10/78:10 pmSFO - SOF
1 stop18h 20mMultiple Airlines
Deal found 8/20$783
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/257:55 pmSOF - SFO
2 stops47h 55mMultiple Airlines
Tue 10/78:10 pmSFO - SOF
1 stop18h 20mMultiple Airlines
Deal found 8/20$792
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amSOF - SFO
2 stops25h 22mAir Canada
Mon 12/87:30 amSFO - SOF
2 stops19h 55mAir Canada
Deal found 8/20$812
This Expedia deal was found by Cheapflights users on 8/21. 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 10/1012:00 pmSOF - SFO
1 stop17h 55mMultiple Airlines
Tue 10/147:30 pmSFO - SOF
1 stop28h 35mMultiple Airlines
Deal found 8/21$814

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia 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 August 21, 2025.
Use the filters below to find and compare flights from Sofia to San Francisco that are best for you.

Fly from

Sofia

Fly to

San Francisco

Route

Depart

Return

Price

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 9/24

5:55 pm-2:30 pm

2 stops30h 35m

San Francisco

Tue 10/7

8:10 pm-12:30 am

1 stop18h 20m

$763

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 9/18

3:35 pm-4:40 pm

1 stop35h 05m

San Francisco

Fri 10/3

6:45 pm-8:35 am

1 stop27h 50m

$767

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 9/10

5:55 pm-6:10 pm

1 stop34h 15m

San Francisco

Wed 10/1

8:45 am-2:30 am

2 stops31h 45m

$769

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Sat 9/27

3:35 pm-10:35 am

1 stop29h 00m

San Francisco

Wed 10/8

12:40 pm-8:35 am

1 stop33h 55m

$776

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Sat 10/4

3:35 pm-10:35 am

1 stop29h 00m

San Francisco

Sat 10/11

12:40 pm-8:35 am

1 stop33h 55m

$780

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 9/11

3:35 pm-4:40 pm

1 stop35h 05m

San Francisco

Fri 10/3

6:45 pm-8:35 am

1 stop27h 50m

$782

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 9/10

3:35 pm-4:40 pm

1 stop35h 05m

San Francisco

Wed 10/1

6:45 pm-2:45 pm

1 stop34h 00m

$782

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Tue 9/30

8:10 pm-11:59 pm

2 stops37h 49m

San Francisco

Tue 10/7

8:10 pm-12:30 am

1 stop18h 20m

$783

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 9/25

7:55 pm-9:50 am

2 stops47h 55m

San Francisco

Tue 10/7

8:10 pm-12:30 am

1 stop18h 20m

$792

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Thu 11/27

6:00 am-9:22 pm

2 stops25h 22m

San Francisco

Mon 12/8

7:30 am-1:25 pm

2 stops19h 55m

$812

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 17 results
1
2

Best time to book a flight from Sofia to San Francisco

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

How far ahead should I book a flight from Sofia to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Sofia to San Francisco. Price data was last updated on August 8, 2025.

The best time to book flights from Sofia to San Francisco is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Sofia to San Francisco (average of $276). Flying from Sofia to San Francisco in June is currently the most expensive (average of $358). 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 SOF to SFO?

Find hourly flight availability from Sofia to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

It’s optimal to fly from Sofia to San Francisco in the afternoon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Sofia to San Francisco?

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 August 21, 2025.
Read through reviews of airlines operating flights from Sofia to San Francisco, such as United Airlines, Turkish Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,930 reviews
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Turkish Airlines
7.3
Good
3,950 reviews
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Lufthansa
6.8
Okay
7,344 reviews
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

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

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

    For as low as $767, Turkish Airlines can have you in San Francisco from Sofia in 35h 05m. The distance from Sofia to San Francisco is about 6481 mi.

  • What are the cheapest airlines flying from Sofia to San Francisco round-trip?

    According to our current data, Turkish Airlines ($773), Lufthansa ($799), and United Airlines ($816) offers the cheapest pricing from Sofia to San Francisco. Users have found that Turkish Airlines is 18% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Sofia to San Francisco (average of $276). Flying from Sofia to San Francisco in June is currently the most expensive (average of $358). 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
Roseville
Santa Cruz
Livermore
South San Francisco
Mountain View
Turlock
Santa Clara
Hollister
Antioch
Watsonville
Manteca
Newark
Milpitas
Sunnyvale
Campbell
Foster City
San Leandro
Burlingame
Redwood City
Vallejo

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sofia to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Sofia to San Francisco

Discover the top 3 airlines that operate flights from Sofia 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$773Average$880FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$799Average$916FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$816Average$922FlexibilityNo cancel feeOn-time69%

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