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Cheap flights from San Francisco to Sofia from $309

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 2/10. 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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Find the cheapest flights from San Francisco to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
1:30 pm - 6:20 pmSFO-SOF
18h 50m1 stop
Lufthansa Logo
6:10 am - 7:05 pmSOF-SFO
22h 55m1 stop
$437Lufthansa
Find Deal
Wed, Jan 21 - Wed, Feb 4
Lufthansa Logo
5:25 pm - 10:45 pmSFO-SOF
19h 20m2 stops
Lufthansa Logo
2:00 pm - 7:35 pmSOF-SFO
15h 35m1 stop
$439Lufthansa
Find Deal
Wed, Jan 21 - Wed, Feb 4
Lufthansa Logo
8:45 pm - 10:45 pmSFO-SOF
16h 00m1 stop
Lufthansa Logo
6:00 am - 3:55 pmSOF-SFO
19h 55m1 stop
$443Lufthansa
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Tue, Jan 20 - Tue, Feb 3
Multiple Airlines Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Multiple Airlines Logo
6:10 am - 9:22 pmSOF-SFO
24h 12m2 stops
$453Multiple Airlines
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Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Multiple Airlines Logo
6:10 am - 9:22 pmSOF-SFO
25h 12m2 stops
$454Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
8:25 am - 6:20 pmSFO-SOF
23h 55m2 stops
Multiple Airlines Logo
6:10 am - 9:22 pmSOF-SFO
24h 12m2 stops
$456Multiple Airlines
Find Deal
Wed, Mar 4 - Wed, Mar 18
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:10 am - 1:40 pmSOF-SFO
16h 30m1 stop
$457Lufthansa
Find Deal
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
8:25 am - 10:45 pmSFO-SOF
28h 20m2 stops
Multiple Airlines Logo
6:10 am - 9:22 pmSOF-SFO
25h 12m2 stops
$458Multiple Airlines
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Wed, Jan 14 - Wed, Jan 21
British Airways Logo
8:40 pm - 8:10 pmSFO-SOF
37h 30m1 stop
British Airways Logo
5:25 pm - 4:00 pmSOF-SFO
31h 35m1 stop
$460British Airways
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Mon, Mar 2 - Mon, Mar 16
Multiple Airlines Logo
8:25 am - 1:45 pmSFO-SOF
19h 20m2 stops
Multiple Airlines Logo
6:00 am - 12:40 pmSOF-SFO
16h 40m1 stop
$469Multiple Airlines
Find Deal
Tue, Jan 20 - Tue, Feb 3

Lufthansa flights from San Francisco to Sofia

Our best Lufthansa deals on San Francisco to Sofia flight tickets
Lufthansa
Jan 21
SFO1:30 pmSan Francisco
18h 50m
1 stop
SOF6:20 pmSofia
Feb 4
SOF6:10 amSofia
22h 55m
1 stop
SFO7:05 pmSan Francisco
$437
Find similar
Lufthansa
Jan 21
SFO5:25 pmSan Francisco
19h 20m
2 stops
SOF10:45 pmSofia
Feb 4
SOF2:00 pmSofia
15h 35m
1 stop
SFO7:35 pmSan Francisco
$439
Find similar
Lufthansa
Jan 20
SFO8:45 pmSan Francisco
16h 00m
1 stop
SOF10:45 pmSofia
Feb 3
SOF6:00 amSofia
19h 55m
1 stop
SFO3:55 pmSan Francisco
$443
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British Airways flights from San Francisco to Sofia

Our best British Airways deals on San Francisco to Sofia flight tickets
British Airways
Mar 2
SFO8:40 pmSan Francisco
37h 30m
1 stop
SOF8:10 pmSofia
Mar 16
SOF5:25 pmSofia
31h 35m
1 stop
SFO4:00 pmSan Francisco
$460
Find similar
British Airways
Jan 29
SFO5:30 pmSan Francisco
31h 45m
1 stop
SOF11:15 amSofia
Feb 2
SOF5:25 pmSofia
35h 20m
1 stop
SFO6:45 pmSan Francisco
$533
Find similar
British Airways
Mar 2
SFO8:40 pmSan Francisco
37h 30m
1 stop
SOF8:10 pmSofia
Oct 12
SOF8:00 pmSofia
27h 50m
1 stop
SFO1:50 pmSan Francisco
$680
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 2, 2025.
Use the filters below to find and compare flights from San Francisco to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/21

1:30 pm-6:20 pm

1 stop18h 50m

Sofia

Wed 2/4

6:10 am-7:05 pm

1 stop22h 55m

$437

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/21

5:25 pm-10:45 pm

2 stops19h 20m

Sofia

Wed 2/4

2:00 pm-7:35 pm

1 stop15h 35m

$439

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/20

8:45 pm-10:45 pm

1 stop16h 00m

Sofia

Tue 2/3

6:00 am-3:55 pm

1 stop19h 55m

$443

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/4

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 3/18

6:10 am-9:22 pm

2 stops24h 12m

$453

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/14

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 1/21

6:10 am-9:22 pm

2 stops25h 12m

$454

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/4

8:25 am-6:20 pm

2 stops23h 55m

Sofia

Wed 3/18

6:10 am-9:22 pm

2 stops24h 12m

$456

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/4

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 3/18

6:10 am-1:40 pm

1 stop16h 30m

$457

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 1/14

8:25 am-10:45 pm

2 stops28h 20m

Sofia

Wed 1/21

6:10 am-9:22 pm

2 stops25h 12m

$458

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 3/2

8:40 pm-8:10 pm

1 stop37h 30m

Sofia

Mon 3/16

5:25 pm-4:00 pm

1 stop31h 35m

$460

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 1/20

8:25 am-1:45 pm

2 stops19h 20m

Sofia

Tue 2/3

6:00 am-12:40 pm

1 stop16h 40m

$469

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sofia from

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?

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 $620.

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 $816 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 $633 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 December 2025, prices for San Francisco to Sofia flights are approximately 0% more expensive 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

Fastest flight time

15h 05m

Direct flights

None
The fastest flight from San Francisco to Sofia takes 15h 05m
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?

  • 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?

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 AirlinesPriceFrom $542Free CancellationRating
7.3
4,072 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $566Free CancellationRating
6.8
7,602 reviews
Search Lufthansa flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $652Free CancellationRating
6.7
1,094 reviews
Search ITA Airways flights

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
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.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Turkish Airlines
Lufthansa
United Airlines
ITA Airways