Flights from San Francisco to Sofia and flight information

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Flight prices from San Francisco to Sofia

Planning a trip from San Francisco to Sofia and looking for the best fares? On Aviasurf you can find the latest prices for any day and choose the most convenient flight. Book a flight from San Francisco to Sofia from $745. with departure on December 21, 2026.

Climate in Sofia and when to travel

The warmest months in Sofia are July and August, each with an average monthly air temperature of 21.8 °C. The coldest month in Sofia is January, with an average monthly air temperature of 0.2 °C. The months with the lowest average monthly precipitation in Sofia are August and September, at 39 mm each.

For the nearest observed departure in December, the climate normals are: average monthly air temperature 1.8 °C, monthly precipitation 50 mm, and daylight 8.9 hours.

Fare calendar for flights from San Francisco to Sofia

Explore fare trends for flights San Francisco — Sofia with our calendar. It helps you see ticket prices for each day of any month and optimize your travel budget. The tool makes finding the best deals even easier and more convenient.

Current flight offers from San Francisco to Sofia

Below is a selection of tickets on the San Francisco – Sofia route. Use our search to view all tickets on this route. For a more precise search, apply filters by airline, airports, flight duration, stops, baggage, cabin class, and departure or arrival time.

Cheapest fare with 3 stops from San Francisco to Sofia

Found in the last 48 hours: a ticket from Frontier Airlines. Departure from San Francisco International Airport (SFO) is scheduled for 21.12.2026 at 22:21. Arrival at Sofia airport Sofia Airport (SOF) is expected on 25.12.2026 at 03:00. Ticket price is $745. Flight time 66 hours and 39 minutes. No checked baggage Find the same ticket

Cheapest flight

Frontier Airlines

F9 2858

22:21

San Francisco (SFO)

21.12.2026

SFO

SOF

66h 39m

with 3 stops

03:00

Sofia (SOF)

25.12.2026

No baggage

Airbus A321neo

Economy

$745

Find flight

General flight information from San Francisco to Sofia

Straight-line distance between cities

10425 km

6478 miles

Flight time

16 h 20 min

Fastest observed itinerary with connections

Time difference

9 hours

Sofia is ahead of San Francisco

See also:

Flights from Sofia to San Francisco for the return trip
Tickets from San Francisco to any destination
Fares from Sofia to any destination
Tickets from Bulgaria to any destination
Tickets from United States to any destination
Prices for flights to San Francisco
Cheap tickets to Bulgaria
Find flights from San Francisco to Bulgaria
Flights from Sofia to United States
Flights from United States to Bulgaria
Flights from Bulgaria to United States

Flight schedule from San Francisco to Sofia

Airports for flights from San Francisco to Sofia

The San Francisco — Sofia route is served by the following airports:

Airports in San Francisco

Airport	Distance to city center	Lowest fare	Note
San Francisco International Airport (SFO)	18 km	$745

Distances are straight-line distances to the city center.

Airports in Sofia

Airport	Distance to city center	Lowest fare	Note
Sofia Airport (SOF)		$745

Distances are straight-line distances to the city center.

Airlines on itineraries from San Francisco to Sofia

Available itineraries from San Francisco to Sofia involve 12 airlines; shown below: 12. Lufthansa appears most often in the observed options.

Lufthansa

Flight numbers by segment: LH 9403 LH 455 LH 459 LH 1706

Turkish Airlines

Flight numbers by segment: TK 080 TK 1029 TK 80

Bulgaria Air

Flight numbers by segment: FB 462 FB 438 FB 852

United Airlines

Flight numbers by segment: UA 930 UA 8882 UA 9320

Frontier Airlines

Flight numbers by segment: F9 2858 F9 2446

Air Serbia

Flight numbers by segment: JU 507 JU 116

Air New Zealand

Flight numbers by segment: NZ 9830 NZ 9854

American Airlines

Flight numbers by segment: AA 6995 AA 6997

British Airways

Flight numbers by segment: BA 892

KLM

Flight numbers by segment: KL 606

Air France

Flight numbers by segment: AF 9650

PIA

Flight numbers by segment: PK 5080

Aircraft used on itinerary segments from San Francisco to Sofia

Observed itinerary segments from San Francisco to Sofia use 5 models of aircraft across 12 airlines.

Airbus A321neo

Airbus Industrie A330-200

Aerospatiale/Alenia ATR 72

Airbus A350-900

Airbus A321 (sharklets)

Connecting cities for flights from San Francisco to Sofia

Flying from San Francisco to Sofia with a layover? Consider these connecting cities:

Los Angeles

Chicago

Belgrade

Istanbul

Flights from San Francisco to Bulgaria

Below are the most popular routes from San Francisco to Bulgaria at the lowest prices from airlines on different dates, with no commission.

Frontier Airlines

F9 2858

Flights San Francisco — Sofia→

22:21

San Francisco (SFO)

21.12.2026

SFO

SOF

66h 39m

with 3 stops

03:00

Sofia (SOF)

25.12.2026

No baggage

Airbus A321neo

Economy

from $745

Find flight

Frequently asked questions about flights from San Francisco to Sofia

Which airlines operated the lowest-priced itinerary we observed from San Francisco to Sofia?

The lowest-priced itinerary we observed was $745 and included segments operated by Frontier Airlines, Air Serbia. This result is based on 2 distinct offers for the route. The offers were found on October 27, 2026.

On which date have we observed the lowest fare from San Francisco to Sofia?

The lowest fare we observed was $745 for departure on December 21, 2026. This is an observation from 2 distinct offers, not a prediction of future prices. The offers were found on October 27, 2026.

How much does a flight from San Francisco to Sofia cost?

Flight prices from San Francisco to Sofia can vary greatly depending on airline, cabin class, season, and booking time. The lowest fare is $745.

Which airlines appear in available itineraries from San Francisco to Sofia?

Available itineraries from San Francisco to Sofia may include flight segments operated by Frontier Airlines, Air Serbia, Turkish Airlines, Air New Zealand, British Airways, KLM, Bulgaria Air, Lufthansa, United Airlines, American Airlines, Air France, PIA.

How long is the flight from San Francisco to Sofia?

The schedule data currently available to us does not list a nonstop flight from San Francisco to Sofia. Recently observed itineraries with a plane change took from 16 hours and 20 minutes.

Are there direct flights from San Francisco to Sofia?

The schedule data currently available to us does not show a nonstop flight from San Francisco to Sofia. Other routings may be available — use our search to check options for your dates.

How much is a round-trip ticket San Francisco — Sofia?

Round-trip fares from San Francisco to Sofia can vary widely depending on season, booking time, airline, and cabin class. We recommend using our flight search for the most accurate pricing.

What are the carry-on baggage rules for flights from San Francisco to Sofia?

Carry-on rules for flights from San Francisco to Sofia vary by airline. Typically passengers can bring one carry-on bag and one personal item such as a laptop bag or handbag. Weight and size limits usually are around 7–10 kg and 55x40x20 cm. Liquids and some items have additional security rules. Always check the specific airline policy before you fly.

What are the rules for traveling with pets on flights from San Francisco to Sofia?

Pet transport rules vary by airline. Generally pets must be in approved carriers. Some airlines allow small pets in the cabin, while larger pets must travel in the cargo hold. Health documents and certificates are required. Please confirm all requirements with your chosen airline.

How early should I arrive at the airport for a flight from San Francisco to Sofia?

Arrive early — typically 2–3 hours before international flights and 1–2 hours before domestic flights. This allows time for check‑in, baggage drop, and security. Peak periods or certain destinations may require extra time.

What additional fees can occur when booking a ticket from San Francisco to Sofia?

Additional fees can include seat selection, extra or special baggage, onboard meals, ticket changes or cancellations, early or late check‑in, and insurance. We do not add booking fees, but extra charges depend on the airline and fare rules.

Are there discounts or promotions for flights from San Francisco to Sofia?

Discounts and promotions vary by airline and booking period. Many airlines run deals outside peak seasons or for early bookings. Check our site regularly for the latest offers, as availability can change quickly.

Are there night flights from San Francisco to Sofia?

Yes, there are night flights from San Francisco to Sofia operated by various airlines. These can be convenient for travelers looking to save daytime hours. Check current schedules and availability in our search.

Are there Wi‑Fi flights on the San Francisco - Sofia route?

Wi‑Fi availability on San Francisco - Sofia flights varies by airline and aircraft. Check details with specific airlines or use our search to see current options.

What are the most common transfer options on flights from San Francisco to Sofia?

Flights from San Francisco to Sofia can include various transfer options depending on the airline. Popular layover cities include Los Angeles, Chicago, Belgrade, Istanbul. Use our search to find the best transfer options.

What onboard services are provided on San Francisco - Sofia flights?

Onboard services vary by airline. Typically passengers can expect entertainment, meals, and beverages, and some carriers offer Wi‑Fi or additional amenities. Check with the airline or use our search for details.

Which airports serve the San Francisco - Sofia route?

The San Francisco - Sofia route is usually served by these departure airports: San Francisco International Airport. Arrival is usually through these airports: Sofia Airport. Exact airport combinations depend on the airline and selected flight. Use our search for details.

What aircraft fly the San Francisco - Sofia route?

Airlines operate various aircraft types on the San Francisco - Sofia route. Examples include Airbus A321neo, Airbus Industrie A330-200, Aerospatiale/Alenia ATR 72, Airbus A350-900, Airbus A321 (sharklets) and other models. Aircraft type depends on the carrier and specific flight. Use our search for up‑to‑date details.

Which connecting cities are common on the San Francisco - Sofia route?

The San Francisco - Sofia route may include different connecting cities, especially for non‑direct flights. Possible connections include Los Angeles, Chicago, Belgrade, Istanbul and others. Use our search to find the best option.