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$348+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOF
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
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 50 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 abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$706
(Kiwi.com)

One-way from

$400
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$663
Provider with most accurate pricing for San Francisco-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Sofia flights.
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From San Francisco to Sofia
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One-way flight from San Francisco to Sofia
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($396 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 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 abril 17, 2025.

This Travelocity deal was found by Cheapflights users on 4/17. 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.
vie. 10/1710:33 pmSFO - SOF
2 stops35h 47mBritish Airways
vie. 10/318:15 pmSOF - SFO
1 stop28h 45mBritish Airways
Deal found 4/17$691
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
mar. 4/298:00 pmSFO - SOF
1 stop18h 30mMultiple Airlines
mar. 5/63:20 pmSOF - SFO
2 stops37h 42mMultiple Airlines
Deal found 4/17$706
This FlightHub deal was found by Cheapflights users on 4/17. 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.
dom. 9/1412:40 pmSFO - SOF
1 stop21h 45mTurkish Airlines
dom. 9/289:25 amSOF - SFO
1 stop17h 15mTurkish Airlines
Deal found 4/17$718
This Booking.com deal was found by Cheapflights users on 4/17. 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.
mar. 10/148:30 amSFO - SOF
2 stops24h 10mAir Canada
mar. 10/286:00 amSOF - SFO
2 stops38h 36mAir Canada
Deal found 4/17$723
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
mar. 4/297:30 pmSFO - SOF
1 stop28h 35mSWISS
mar. 5/61:15 pmSOF - SFO
1 stop36h 55mSWISS
Deal found 4/16$734
This Expedia deal was found by Cheapflights users on 4/17. 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.
vie. 8/159:05 pmSFO - SOF
1 stop15h 55mLufthansa
vie. 8/296:15 amSOF - SFO
1 stop16h 25mLufthansa
Deal found 4/17$738
This United Airlines deal was found by Cheapflights users on 4/17. 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.
dom. 9/147:25 pmSFO - SOF
1 stop17h 25mUnited Airlines
dom. 9/286:20 amSOF - SFO
2 stops38h 08mUnited Airlines
Deal found 4/17$787
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/101:17 pmSFO - SOF
2 stops21h 23mAmerican Airlines
lun. 6/168:00 pmSOF - SFO
1 stop27h 50mAmerican Airlines
Deal found 4/17$979
This Air Serbia deal was found by Cheapflights users on 4/17. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/246:15 amSFO - SOF
2 stops34h 40mAir Serbia
vie. 5/24:05 pmSOF - SFO
2 stops41h 54mAir Serbia
Deal found 4/17$1,234
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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.
mié. 6/252:40 pmSFO - SOF
2 stops17h 30mAustrian Airlines
dom. 7/206:55 pmSOF - SFO
2 stops27h 45mAustrian Airlines
Deal found 4/17$1,291

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 abril 17, 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

mar. 4/29

8:00 pm-12:30 am

1 stop18h 30m

Sofia

mar. 5/6

3:20 pm-7:02 pm

2 stops37h 42m

$706

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

dom. 9/14

12:40 pm-8:25 pm

1 stop21h 45m

Sofia

dom. 9/28

9:25 am-4:40 pm

1 stop17h 15m

$718

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mar. 10/14

8:30 am-6:40 pm

2 stops24h 10m

Sofia

mar. 10/28

6:00 am-11:36 am

2 stops38h 36m

$723

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mar. 4/29

7:30 pm-10:05 am

1 stop28h 35m

Sofia

mar. 5/6

1:15 pm-4:10 pm

1 stop36h 55m

$734

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

vie. 8/15

9:05 pm-11:00 pm

1 stop15h 55m

Sofia

vie. 8/29

6:15 am-12:40 pm

1 stop16h 25m

$738

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

dom. 9/14

7:25 pm-10:50 pm

1 stop17h 25m

Sofia

dom. 9/28

6:20 am-10:28 am

2 stops38h 08m

$787

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mié. 7/16

7:20 pm-1:30 pm

1 stop32h 10m

Sofia

mié. 7/30

9:30 pm-11:48 pm

2 stops36h 18m

$929

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mar. 6/10

1:17 pm-8:40 pm

2 stops21h 23m

Sofia

lun. 6/16

8:00 pm-1:50 pm

1 stop27h 50m

$979

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mié. 6/25

2:40 pm-6:10 pm

2 stops17h 30m

Sofia

dom. 7/20

6:55 pm-12:40 pm

2 stops27h 45m

$1,291

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mié. 8/6

6:18 am-10:55 am

3 stops42h 37m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 15 results
1
2

Compare providers for flights from San Francisco to Sofia

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 San Francisco to Sofia in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy1 starTrust 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 San Francisco-Sofia flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Francisco-Sofia flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Francisco-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Sofia flights, Cheapflights users trust AranGrant the most. AranGrant 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 San Francisco-Sofia 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 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 April 11, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Sofia, you should look to book at least 47 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 $1,243). 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 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 abril 17, 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.

Rainfall in Sofia by month

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

In terms of precipitation, rainfall in Sofia 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 Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

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

If weather is an important factor for your trip to Sofia, 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 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 abril 17, 2025.
Read reviews from past customers who have flown Austrian Airlines, SWISS and United Airlines from San Francisco to Sofia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
775 reviews

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.6
Good
775 reviews
Austrian Airlines
7.6
Good
775 reviews

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
SWISS
7.5
Good
1,580 reviews
Austrian Airlines
7.6
Good
775 reviews

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
United Airlines
7.4
Good
8,667 reviews
Austrian Airlines
7.6
Good
775 reviews

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Turkish Airlines
7.3
Good
3,769 reviews
Austrian Airlines
7.6
Good
775 reviews

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
American Airlines
7.2
Good
10,000 reviews
Austrian Airlines
7.6
Good
775 reviews

Comfort

7.3

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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 $734. Other airlines that can offer you cheap pricing are Turkish Airlines, from $793, and British Airways, from $929. Users have found that SWISS is 16% cheaper than the other options available to this destination.

  • 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 $30.

  • 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 $1,243). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from San Francisco to Sofia

Discover the top 7 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 abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$522Average$1,324FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$578Average$657FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$585Average$726FlexibilityNo 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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