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

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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Cheapflights Tip: The best prices from San Francisco to Sofia are usually found in January or March, booked 86 days in advance, depart on a Thursday or Sunday and return on a Saturday

Cheap flight deals from San Francisco to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Sofia (SOF). 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 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 Sofia
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One-way flight from San Francisco to Sofia
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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 Sofia

Cheapest flights from San Francisco to Sofia
Explore the most affordable flight options available from San Francisco to Sofia. 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

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Sofia 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 Sofia that are best for you.

Fly from

San Francisco

Fly to

Sofia

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 FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 10/9

4:20 pm-12:30 am

2 stops22h 10m

$247

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/6

12:40 pm-2:45 pm

1 stop16h 05m

$419

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 10/9

3:05 pm-2:00 pm

1 stop36h 55m

$473

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 8/6

7:40 pm-10:05 am

2 stops52h 25m

$478

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 results
1
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Best time to book a flight from San Francisco to Sofia

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Sofia. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Sofia, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from San Francisco to Sofia (average of $632). Flying from San Francisco to Sofia 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 SOF?

Find hourly flight availability from San Francisco to Sofia. 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.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Sofia in the afternoon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from San Francisco to Sofia?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Sofia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to Sofia flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated July 30, 2025.
Read through reviews of airlines operating flights from San Francisco to Sofia, such as Air France, SWISS, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,465 reviews

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.1

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.5
Good
1,465 reviews
Air France
7.5
Good
1,465 reviews

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.1

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
SWISS
7.5
Good
1,686 reviews
Air France
7.5
Good
1,465 reviews

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.1

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
United Airlines
7.4
Good
8,896 reviews
Air France
7.5
Good
1,465 reviews

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.1

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Turkish Airlines
7.3
Good
3,928 reviews
Air France
7.5
Good
1,465 reviews

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.1

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air Canada
7.1
Good
9,837 reviews
Air France
7.5
Good
1,465 reviews

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.1

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Related info for your journey

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

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

    Cheapflights users have booked flights from San Francisco to Sofia round-trip from $553. Other airlines that can offer you cheap pricing are United Airlines, from $590, and British Airways, from $593. Users have found that Turkish Airlines is 35% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $419 on Turkish Airlines. Other airlines that offer cheap prices include Air France from $473 and SWISS from $478 one-way.

  • Where are the most common layover locations when flying from San Francisco to Sofia?

    San Francisco to Sofia flights have a layover in Istanbul most often.

  • What are some popular things to do or see while on a layover in Istanbul?

    Istanbul travelers tend to visit Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani more than anywhere else. Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani can be visited by traveling about 20.8 mi, 22.3 mi, and 21.7 mi respectively from Istanbul. Those on a layover in Istanbul in need of a rental car can book one at Istanbul for about $52.

  • Where are the least popular layover locations for San Francisco to Sofia flights?

    Of the flights from San Francisco to Sofia that have layovers, the fewest flights stop in Munich.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from San Francisco to Sofia (average of $632). Flying from San Francisco to Sofia 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 Sofia

Discover the top 6 airlines that operate flights from San Francisco to Sofia. 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$679FlexibilityNo 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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