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Cheap flights from San Francisco to Sofia from $444

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 12/13. 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.
Multiple Airlines Logo
6:40 pm - 11:00 amSFO-SOF
30h 20m1 stop
Multiple Airlines Logo
8:25 pm - 8:10 pmSOF-SFO
33h 45m1 stop
$547Multiple Airlines
Find Deal
Tue, Feb 10 - Tue, Feb 24
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:10 am - 5:48 pmSOF-SFO
21h 38m2 stops
$562Lufthansa
Find Deal
Wed, Dec 3 - Wed, Dec 17
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:00 am - 5:36 pmSOF-SFO
21h 36m2 stops
$564Lufthansa
Find Deal
Thu, Jan 1 - Thu, Jan 15
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:05 am - 7:35 pmSOF-SFO
23h 30m1 stop
$572Lufthansa
Find Deal
Tue, Dec 9 - Wed, Dec 17
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
2:00 pm - 7:35 pmSOF-SFO
15h 35m1 stop
$573Lufthansa
Find Deal
Wed, Dec 3 - Wed, Dec 17
Multiple Airlines Logo
7:25 pm - 3:15 pmSFO-SOF
33h 50m1 stop
Multiple Airlines Logo
6:10 am - 5:48 pmSOF-SFO
21h 38m2 stops
$578Multiple Airlines
Find Deal
Tue, Dec 9 - Wed, Dec 17
Lufthansa Logo
10:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:20 am - 12:40 pmSOF-SFO
16h 20m1 stop
$583Lufthansa
Find Deal
Mon, Mar 16 - Mon, Mar 30
Lufthansa Logo
9:40 pm - 10:45 pmSFO-SOF
15h 05m1 stop
Lufthansa Logo
6:00 am - 12:40 pmSOF-SFO
16h 40m1 stop
$584Lufthansa
Find Deal
Sat, Jan 10 - Thu, Jan 22
Lufthansa Logo
9:25 pm - 10:45 pmSFO-SOF
15h 20m1 stop
Lufthansa Logo
2:00 pm - 7:35 pmSOF-SFO
15h 35m1 stop
$586Lufthansa
Find Deal
Wed, Feb 11 - Wed, Feb 25
Multiple Airlines Logo
8:25 am - 6:20 pmSFO-SOF
24h 55m2 stops
Multiple Airlines Logo
6:20 am - 12:40 pmSOF-SFO
16h 20m1 stop
$594Multiple Airlines
Find Deal
Mon, Mar 16 - Mon, Mar 30

United Airlines flights from San Francisco to Sofia

Our best United Airlines deals on San Francisco to Sofia flight tickets
United Airlines
Apr 2
SFO1:45 pmSan Francisco
23h 25m
1 stop
SOF11:10 pmSofia
Apr 6
SOF12:50 pmSofia
16h 10m
1 stop
SFO7:00 pmSan Francisco
$619
Find similar
United Airlines
Dec 9
SFO2:50 pmSan Francisco
17h 30m
2 stops
SOF6:20 pmSofia
Dec 17
SOF2:00 pmSofia
15h 35m
1 stop
SFO7:35 pmSan Francisco
$622
Find similar
United Airlines
Jan 3
SFO1:30 pmSan Francisco
23h 15m
1 stop
SOF10:45 pmSofia
Jan 17
SOF2:25 pmSofia
41h 14m
2 stops
SFO9:39 pmSan Francisco
$623
Find similar

Turkish Airlines flights from San Francisco to Sofia

Our best Turkish Airlines deals on San Francisco to Sofia flight tickets
Turkish Airlines
Feb 10
SFO6:50 pmSan Francisco
27h 55m
1 stop
SOF8:45 amSofia
Feb 24
SOF9:35 amSofia
17h 10m
1 stop
SFO4:45 pmSan Francisco
$609
Find similar
Turkish Airlines
Feb 13
SFO6:50 pmSan Francisco
16h 00m
1 stop
SOF8:50 pmSofia
Feb 27
SOF9:35 amSofia
17h 10m
1 stop
SFO4:45 pmSan Francisco
$646
Find similar
Turkish Airlines
Nov 23
SFO6:50 pmSan Francisco
34h 20m
1 stop
SOF3:10 pmSofia
Nov 27
SOF9:35 amSofia
17h 10m
1 stop
SFO4:45 pmSan Francisco
$1,548
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 November 13, 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

Tue 2/10

6:40 pm-11:00 am

1 stop30h 20m

Sofia

Tue 2/24

8:25 pm-8:10 pm

1 stop33h 45m

$547

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 12/3

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 12/17

6:10 am-5:48 pm

2 stops21h 38m

$562

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Thu 1/1

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Thu 1/15

6:00 am-5:36 pm

2 stops21h 36m

$564

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 12/9

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 12/17

6:05 am-7:35 pm

1 stop23h 30m

$572

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 12/3

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Wed 12/17

2:00 pm-7:35 pm

1 stop15h 35m

$573

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 12/9

7:25 pm-3:15 pm

1 stop33h 50m

Sofia

Wed 12/17

6:10 am-5:48 pm

2 stops21h 38m

$578

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 3/16

10:40 pm-10:45 pm

1 stop15h 05m

Sofia

Mon 3/30

6:20 am-12:40 pm

1 stop16h 20m

$583

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sat 1/10

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Thu 1/22

6:00 am-12:40 pm

1 stop16h 40m

$584

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 2/11

9:25 pm-10:45 pm

1 stop15h 20m

Sofia

Wed 2/25

2:00 pm-7:35 pm

1 stop15h 35m

$586

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Mon 3/16

8:25 am-6:20 pm

2 stops24h 55m

Sofia

Mon 3/30

6:20 am-12:40 pm

1 stop16h 20m

$594

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 $612, 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 $822 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.

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

As of November 2025, prices for San Francisco to Sofia flights are approximately 40% 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

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?

  • 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 $543Free CancellationRating
7.3
4,043 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $615Free CancellationRating
6.8
7,572 reviews
Search Lufthansa flights
United AirlinesPriceFrom $627Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
ITA AirwaysPriceFrom $652Free CancellationRating
6.7
1,082 reviews
Search ITA Airways flights
Air CanadaPriceFrom $1,023Free CancellationRating
7.1
10,445 reviews
Search Air Canada 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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Fly your favorite airline to Sofia

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