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$447+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SFO
Dec 30 — Jan 61
Tue 12/30
Tue 1/6
1 adult, Economy
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Find cheap flights from Sofia to San Francisco with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Sofia to San Francisco are usually found in February or September, booked 22 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 November 30, 2025.

Most accurate provider

OneTravel
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$692
(Mytrip)

One-way from

$447
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$907
Provider with most accurate pricing for Sofia-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Sofia-San Francisco flights.
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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. 3% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 30, 2025.

This Gurufare deal was found by Cheapflights users on 11/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/129:35 amSOF - SFO
1 stop35h 30mTurkish Airlines
Thu 1/156:50 pmSFO - SOF
1 stop34h 20mTurkish Airlines
Deal found 11/28$765
This Kiwi.com deal was found by Cheapflights users on 11/28. 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.
Thu 12/254:45 pmSOF - SFO
2 stops33h 20mMultiple Airlines
Fri 1/166:40 pmSFO - SOF
1 stop37h 30mMultiple Airlines
Deal found 11/28$853
This Kiwi.com deal was found by Cheapflights users on 11/28. 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.
Tue 12/236:00 amSOF - SFO
1 stop16h 40mLufthansa
Wed 1/149:40 pmSFO - SOF
1 stop15h 05mLufthansa
Deal found 11/28$869
This KLM deal was found by Cheapflights users on 11/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:00 amSOF - SFO
2 stops21h 04mMultiple Airlines
Wed 1/143:40 pmSFO - SOF
1 stop36h 15mMultiple Airlines
Deal found 11/28$875
This Kiwi.com deal was found by Cheapflights users on 11/28. 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.
Mon 12/224:45 pmSOF - SFO
2 stops55h 45mMultiple Airlines
Fri 1/166:40 pmSFO - SOF
1 stop37h 30mMultiple Airlines
Deal found 11/28$876
This British Airways deal was found by Cheapflights users on 11/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:00 pmSOF - SFO
2 stops35h 51mBritish Airways
Mon 1/1210:30 pmSFO - SOF
2 stops35h 40mBritish Airways
Deal found 11/28$877
This KLM deal was found by Cheapflights users on 11/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:00 amSOF - SFO
2 stops18h 57mKLM
Thu 1/151:55 pmSFO - SOF
1 stop14h 10mKLM
Deal found 11/28$879
This KLM deal was found by Cheapflights users on 11/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:00 amSOF - SFO
2 stops21h 04mKLM
Wed 1/147:00 amSFO - SOF
2 stops21h 05mKLM
Deal found 11/28$884
This Cheapflightsfares deal was found by Cheapflights users on 11/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:10 amSOF - SFO
1 stop16h 30mLufthansa
Thu 1/159:40 pmSFO - SOF
1 stop15h 05mLufthansa
Deal found 11/29$885
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Tue 12/236:00 amSOF - SFO
1 stop16h 40mUnited Airlines
Wed 1/149:40 pmSFO - SOF
1 stop15h 05mUnited Airlines
Deal found 11/28$889
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Thu 12/252:35 pmSOF - SFO
1 stop15h 35mUnited Airlines
Sat 1/176:50 pmSFO - SOF
1 stop17h 55mUnited Airlines
Deal found 11/28$890

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 November 30, 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

Thu 1/15

3:15 pm-4:30 pm

2 stops35h 15m

San Francisco

Wed 1/28

8:30 am-11:30 pm

3 stops29h 00m

$692

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Mon 3/9

9:35 am-5:45 pm

1 stop17h 10m

San Francisco

Mon 3/23

7:50 pm-8:50 pm

1 stop16h 00m

$795

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 1/14

7:00 am-8:59 pm

2 stops23h 59m

San Francisco

Wed 1/21

7:00 am-2:05 pm

2 stops21h 05m

$820

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Sat 1/31

7:00 am-5:49 pm

2 stops20h 49m

San Francisco

Sat 2/28

1:55 pm-2:05 pm

1 stop14h 10m

$822

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Fri 1/23

6:10 am-8:10 pm

1 stop24h 00m

San Francisco

Tue 1/27

9:25 pm-10:45 pm

1 stop15h 20m

$831

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Sat 1/31

2:25 pm-8:10 pm

1 stop15h 45m

San Francisco

Sat 2/28

2:40 pm-10:45 pm

1 stop22h 05m

$831

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Fri 1/23

2:35 pm-8:10 pm

1 stop15h 35m

San Francisco

Tue 1/27

9:25 pm-10:45 pm

1 stop15h 20m

$833

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Wed 1/7

8:55 pm-10:40 pm

3 stops59h 45m

$609

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Tue 1/6

12:10 pm-10:40 pm

3 stops44h 30m

$664

SofiaSan Francisco

SOF - SFO

SOFSFO

Sofia

Sat 1/10

7:05 pm-7:35 pm

1 stop34h 30m

$798

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/27

Showing 1-10 of 15 results
1
2

Compare providers for flights from Sofia to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sofia to San Francisco in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
OneTravelPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sofia-San Francisco flights, users find the pricing of OneTravel to be most consistent on Cheapflights vs. OneTravel Users can find the same prices on Sofia-San Francisco flight deals on Cheapflights vs. OneTravel >95% of the time. Price accuracy is based on data collected from Sofia-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-San Francisco flights, Cheapflights users trust OneTravel the most. OneTravel has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 November 28, 2025.

The best time to book flights from Sofia to San Francisco is 22 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, June is the cheapest month in which you can book a flight from Sofia to San Francisco (average of $462). Flying from Sofia 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.

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 November 30, 2025.

It’s optimal to fly from Sofia to San Francisco in the afternoon. By choosing this option you can save up to 12% 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 November 30, 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
9,054 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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
9,054 reviews
United Airlines
7.4
Good
9,054 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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
4,070 reviews
United Airlines
7.4
Good
9,054 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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
7,598 reviews
United Airlines
7.4
Good
9,054 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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 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 $795, Turkish Airlines can have you in San Francisco from Sofia in 17h 10m. 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, Lufthansa ($712), Turkish Airlines ($736), and United Airlines ($813) offers the cheapest pricing from Sofia to San Francisco. Users have found that Lufthansa is 22% 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, June is the cheapest month in which you can book a flight from Sofia to San Francisco (average of $462). Flying from Sofia 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
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Daly City
Redwood City
Vallejo
Hollister
Foster City
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Union City
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Burlingame

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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 November 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$712Average$884FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$736Average$878FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$813Average$951FlexibilityNo cancel feeOn-time69%

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