What is the cheapest airline that flies from San Francisco to Sofia?

British Airways, Lufthansa, and United Airlines are the most popular carriers operating from San Francisco to Sofia

Which layover airport has the shortest travel time from San Francisco to Sofia?

Flights connecting via Rome (FCO) have the shortest average one-way travel time: 15h 55m.

Which layover airport has the shortest connection time from San Francisco to Sofia?

Istanbul (IST) has the shortest average layover time for this route: 2h 27m.

Which airport is the most popular layover for flights between San Francisco and Sofia?

Istanbul (IST) was the most common stop: 76% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Sofia?

Turkish Airlines, Lufthansa and United Airlines are the top three most popular airlines that fly to Sofia from San Francisco according to our data. Turkish Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 5 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from San Francisco to Sofia?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $955.

When did momondo last update prices for flights from San Francisco Airport to Sofia Airport?

Prices for flights from San Francisco Airport to Sofia Airport were last updated today.

How many operators does momondo search for flights from San Francisco Airport to Sofia Airport?

As of September 2025, there are 5 operators available to choose from for flights from San Francisco Airport to Sofia Airport.

How old do you have to be to fly from San Francisco Airport to Sofia Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Sofia Airport.

What documentation or ID do you need to fly to Sofia Airport?

The travel and health documents you'll need for your trip to Sofia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sofia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$269 Cheap Flights from San Francisco to Sofia in 2025/26

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Find the cheapest flights from San Francisco to Sofia

Round-trip

One-way

Last minute

Cheap round-trip flights

9:40 pm - 10:45 pmSFO-SOF

15h 05m1 stop

6:00 am - 12:40 pmSOF-SFO

16h 40m1 stop

$514Lufthansa

Find Deal

mar., nov. 4 - mar., nov. 18

7:30 pm - 12:30 pmSFO-SOF

31h 00m1 stop

6:10 am - 9:22 pmSOF-SFO

25h 12m2 stops

$526

Find Deal

dom., oct. 12 - vie., nov. 14

9:40 pm - 10:45 pmSFO-SOF

15h 05m1 stop

6:10 am - 12:40 pmSOF-SFO

16h 30m1 stop

$527Lufthansa

Find Deal

mié., nov. 5 - mié., nov. 19

5:30 pm - 8:10 pmSFO-SOF

16h 40m1 stop

9:30 pm - 1:50 pmSOF-SFO

26h 20m1 stop

$548British Airways

Find Deal

mar., ene. 13 - mié., abr. 15

9:40 pm - 10:45 pmSFO-SOF

15h 05m1 stop

6:00 am - 9:22 pmSOF-SFO

25h 22m2 stops

$551United Airlines

Find Deal

lun., nov. 24 - jue., feb. 12

1:30 pm - 6:20 pmSFO-SOF

18h 50m1 stop

1:50 pm - 8:00 pmSOF-SFO

16h 10m1 stop

$552United Airlines

Find Deal

mié., ene. 14 - jue., abr. 16

1:20 pm - 6:20 pmSFO-SOF

43h 00m2 stops

1:50 pm - 10:47 amSOF-SFO

30h 57m2 stops

$559Air Canada

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lun., ene. 12 - mié., abr. 15

1:20 pm - 6:20 pmSFO-SOF

43h 00m2 stops

1:55 pm - 12:20 pmSOF-SFO

56h 25m2 stops

$563Air Canada

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lun., nov. 24 - lun., feb. 16

6:50 pm - 3:10 pmSFO-SOF

34h 20m1 stop

9:15 pm - 4:40 pmSOF-SFO

29h 25m1 stop

$580Turkish Airlines

Find Deal

jue., ene. 15 - mié., abr. 15

5:30 pm - 11:15 amSFO-SOF

31h 45m1 stop

5:25 pm - 3:00 pmSOF-SFO

31h 35m1 stop

$592British Airways

Find Deal

jue., nov. 13 - lun., nov. 17

British Airways flights from San Francisco to Sofia

Our best British Airways deals on San Francisco to Sofia flight tickets

British Airways

Jan 13

SFO5:30 pmSan Francisco

16h 40m

1 stop

SOF8:10 pmSofia

Apr 15

SOF9:30 pmSofia

26h 20m

1 stop

SFO1:50 pmSan Francisco

$548

Find similar

British Airways

Nov 13

SFO5:30 pmSan Francisco

31h 45m

1 stop

SOF11:15 amSofia

Nov 17

SOF5:25 pmSofia

31h 35m

1 stop

SFO3:00 pmSan Francisco

$592

Find similar

British Airways

Sep 20

SFO2:22 pmSan Francisco

19h 58m

2 stops

SOF8:20 pmSofia

Oct 1

SOF9:30 pmSofia

33h 20m

2 stops

SFO8:50 pmSan Francisco

$857

Find similar

United Airlines flights from San Francisco to Sofia

Our best United Airlines deals on San Francisco to Sofia flight tickets

United Airlines

Nov 24

SFO9:40 pmSan Francisco

15h 05m

1 stop

SOF10:45 pmSofia

Feb 12

SOF6:00 amSofia

25h 22m

2 stops

SFO9:22 pmSan Francisco

$551

Find similar

United Airlines

Jan 14

SFO1:30 pmSan Francisco

18h 50m

1 stop

SOF6:20 pmSofia

Apr 16

SOF1:50 pmSofia

16h 10m

1 stop

SFO8:00 pmSan Francisco

$552

Find similar

United Airlines

Jan 12

SFO9:40 pmSan Francisco

15h 05m

1 stop

SOF10:45 pmSofia

Apr 14

SOF6:15 amSofia

16h 25m

1 stop

SFO12:40 pmSan Francisco

$553

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mar. 11/4

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

mar. 11/18

6:00 am-12:40 pm

1 stop16h 40m

$514

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

dom. 10/12

7:30 pm-12:30 pm

1 stop31h 00m

Sofia

vie. 11/14

6:10 am-9:22 pm

2 stops25h 12m

$526

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mié. 11/5

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

mié. 11/19

6:10 am-12:40 pm

1 stop16h 30m

$527

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mar. 1/13

5:30 pm-8:10 pm

1 stop16h 40m

Sofia

mié. 4/15

9:30 pm-1:50 pm

1 stop26h 20m

$548

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

lun. 11/24

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

jue. 2/12

6:00 am-9:22 pm

2 stops25h 22m

$551

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

mié. 1/14

1:30 pm-6:20 pm

1 stop18h 50m

Sofia

jue. 4/16

1:50 pm-8:00 pm

1 stop16h 10m

$552

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

lun. 1/12

1:20 pm-6:20 pm

2 stops43h 00m

Sofia

mié. 4/15

1:50 pm-10:47 am

2 stops30h 57m

$559

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

lun. 11/24

1:20 pm-6:20 pm

2 stops43h 00m

Sofia

lun. 2/16

1:55 pm-12:20 pm

2 stops56h 25m

$563

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

jue. 1/15

6:50 pm-3:10 pm

1 stop34h 20m

Sofia

mié. 4/15

9:15 pm-4:40 pm

1 stop29h 25m

$580

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

jue. 11/13

5:30 pm-11:15 am

1 stop31h 45m

Sofia

lun. 11/17

5:25 pm-3:00 pm

1 stop31h 35m

$592

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How to get the cheapest flight ticket from San Francisco to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from San Francisco is in January. Flight prices, which tend to average around $613, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Sofia from San Francisco during October instead. Flights to Sofia in October, while not as cheap as those in January, still average around $627.

What is the cheapest day to depart on your flight to Sofia?

According to our data, Thursday is the cheapest day to fly to Sofia from San Francisco. The lowest ticket price found for a Thursday departure recently was $832. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from San Francisco to Sofia on a Friday will generally be more expensive and average around $1,318. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sofia?

In the afternoon is the cheapest time of day to fly from San Francisco to Sofia when you can find flight prices for as low as $817. Flying to Sofia in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Sofia, so prices are often more expensive at around $1,363 per ticket.

How far in advance should I book a flight to Sofia?

You are more likely to see cheaper flights to Sofia from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $841 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from San Francisco for as low as $684 on momondo.

Can stopping save me money on San Francisco to Sofia flights?

You could potentially save up to 1% on your flight if you consider stops on a San Francisco to Sofia flight.

How have San Francisco to Sofia flight prices changed over time?

As of September 2025, prices for San Francisco to Sofia flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Sofia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Francisco to Sofia (SFO to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Sofia

Direct flights	None

There are no direct flights from San Francisco to Sofia. There are no popular flight routes from San Francisco to Sofia.

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How far is San Francisco to Sofia by plane?
The distance between San Francisco and Sofia is about 6469.3 mi. A reasonable flight in good conditions will take 15h 05m.
When did momondo last update prices for flights from San Francisco Airport to Sofia Airport?
Prices for flights from San Francisco Airport to Sofia Airport were last updated today.
How many operators does momondo search for flights from San Francisco Airport to Sofia Airport?
As of September 2025, there are 5 operators available to choose from for flights from San Francisco Airport to Sofia Airport.
How old do you have to be to fly from San Francisco Airport to Sofia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The travel and health documents you'll need for your trip to Sofia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sofia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from San Francisco to Sofia?
Based on momondo bookings for flights between San Francisco and Sofia, the leading airline is Turkish Airlines, making up 45% of the total bookings. Other popular airlines include Lufthansa with 37%, United Airlines with 15%, and ITA Airways with 2%.

Best airlines flying from San Francisco to Sofia

Compare and see reviews for airlines that fly from San Francisco to Sofia with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $542	Free Cancellation	Rating 7.3 3,968 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $627	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
Lufthansa	PriceFrom $628	Free Cancellation	Rating 6.8 7,407 reviews	Search Lufthansa flights
ITA Airways	PriceFrom $652	Free Cancellation	Rating 6.7 1,036 reviews	Search ITA Airways flights
Air Canada	PriceFrom $1,023	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights

Bansko

Borovets

Velingrad

Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Sofia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Sofia. momondo saves you time and could save you money on your trip.

Can I find flights from San Francisco to Sofia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sofia from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to Sofia?

Once all potential San Francisco to Sofia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Francisco to Sofia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sofia, momondo offers a useful price alert feature which will track prices for flights to Sofia from San Francisco and alert you when they change.

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from San Francisco to Sofia from $269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Sofia departing on 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from San Francisco to Sofia

Our best British Airways deals on San Francisco to Sofia flight tickets

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Our best United Airlines deals on San Francisco to Sofia flight tickets

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How to get the cheapest flight ticket from San Francisco to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sofia?

What is the cheapest day to depart on your flight to Sofia?

What is the cheapest time of day to depart on your flight to Sofia?

How far in advance should I book a flight to Sofia?

Can stopping save me money on San Francisco to Sofia flights?

You could potentially save up to 1% on your flight if you consider stops on a San Francisco to Sofia flight.

How have San Francisco to Sofia flight prices changed over time?

As of September 2025, prices for San Francisco to Sofia flights are approximately 27% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from San Francisco to Sofia?

British Airways, Lufthansa, and United Airlines are the most popular carriers operating from San Francisco to Sofia

What airlines fly to Sofia?

Which airport is the most popular layover for flights between San Francisco and Sofia?

Istanbul (IST) was the most common stop: 76% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from San Francisco to Sofia?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $955.

Which layover airport has the shortest travel time from San Francisco to Sofia?

Flights connecting via Rome (FCO) have the shortest average one-way travel time: 15h 55m.

Which layover airport has the shortest connection time from San Francisco to Sofia?

Istanbul (IST) has the shortest average layover time for this route: 2h 27m.

When to book flights from San Francisco to Sofia

Cheap San Francisco to Sofia (SFO to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Sofia

Direct flights

How far is San Francisco to Sofia by plane?

When did momondo last update prices for flights from San Francisco Airport to Sofia Airport?

How many operators does momondo search for flights from San Francisco Airport to Sofia Airport?

How old do you have to be to fly from San Francisco Airport to Sofia Airport?

What documentation or ID do you need to fly to Sofia Airport?

What is the most popular airline from San Francisco to Sofia?

Best airlines flying from San Francisco to Sofia

Compare and see reviews for airlines that fly from San Francisco to Sofia with momondo

Traveling to a place near Sofia?

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Sofia?

Can I find flights from San Francisco to Sofia with flexible booking policies on momondo?

How can momondo help me find flights from San Francisco to Sofia?

I’m not ready to book a flight from San Francisco to Sofia right now. Can momondo alert me if prices change?

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo