$418 Find Cheap Flights from Bulgaria to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Francisco departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Bulgaria to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bulgaria to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bulgaria to San Francisco

Wed, Apr 15 - Sun, Apr 26
Multiple Airlines Logo
9:40 pm - 5:55 pm
SOF
-
SFO
30h 15m
1 stop
Multiple Airlines Logo
7:40 pm - 11:10 am
SFO
-
SOF
53h 30m
2 stops
$787Multiple Airlines
Wed, Apr 15 - Thu, Apr 23
Multiple Airlines Logo
9:40 pm - 5:55 pm
SOF
-
SFO
30h 15m
1 stop
Multiple Airlines Logo
7:40 pm - 10:45 am
SFO
-
SOF
53h 05m
2 stops
$797Multiple Airlines
Mon, Jun 15 - Mon, Jul 27
Multiple Airlines Logo
6:55 pm - 1:50 pm
SOF
-
SFO
28h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$811Multiple Airlines
Mon, Jun 15 - Mon, Jul 27
Multiple Airlines Logo
6:55 pm - 1:50 pm
SOF
-
SFO
28h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$814Multiple Airlines
Wed, Jun 17 - Mon, Jul 27
Multiple Airlines Logo
6:30 am - 1:50 pm
SOF
-
SFO
41h 20m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$821Multiple Airlines
Mon, Jun 15 - Sun, Jul 26
Multiple Airlines Logo
6:55 pm - 1:50 pm
SOF
-
SFO
28h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$826Multiple Airlines
Mon, Jun 15 - Tue, Jul 21
Multiple Airlines Logo
6:55 pm - 1:50 pm
SOF
-
SFO
28h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$828Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Turkish Airlines Logo
10:10 pm - 10:50 am
VAR
-
SFO
22h 40m
1 stop
Turkish Airlines Logo
6:45 pm - 8:30 am
SFO
-
VAR
27h 45m
1 stop
$973Turkish Airlines
Sat, May 16 - Sat, May 23
Lufthansa Logo
1:20 pm - 8:00 pm
VAR
-
SFO
16h 40m
2 stops
Lufthansa Logo
2:00 pm - 3:15 pm
SFO
-
VAR
39h 15m
2 stops
$1,170Lufthansa
Sat, May 16 - Sat, May 23
Lufthansa Logo
9:20 am - 8:00 pm
VAR
-
SFO
20h 40m
1 stop
Lufthansa Logo
2:00 pm - 11:30 am
SFO
-
VAR
35h 30m
1 stop
$1,358Lufthansa
Booking Insights

KAYAK's insights & trends for flights to San Francisco

Get data-powered insights and trends for flights to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to San Francisco?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to San Francisco was found on the route from Sofia, at $787 return. The most popular connection is from Los Angeles to San Francisco and KAYAK users have found round-trip deals for as low as $92 in the last 3 days.

What is the cheapest month to fly to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to San Francisco is September, where tickets cost $821 on average for return flights. On the other hand, the most expensive months are August and October, where the average cost of tickets from Bulgaria is $1,074 and $1,020 respectively. For one-way flights, the best month to travel is September with an average price of $821.

How far in advance should I book a flight to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$418
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Sofia to San Francisco

FAQs - booking San Francisco flights

  • What is the cheapest flight to San Francisco?

    In the last 3 days, the cheapest flight deal to San Francisco was found on the route from Sofia, at $787 return. The most popular connection is from Los Angeles to San Francisco and KAYAK users have found round-trip deals for as low as $92 in the last 3 days.

  • How far is San Francisco Airport from central San Francisco?

    The distance between San Francisco Airport and downtown San Francisco is 11 miles.

  • What is the name of San Francisco’s airport?

    All flights to San Francisco land at San Francisco Airport. The airport code is SFO,and it can also be referred to as San Francisco or San Francisco Intl.

  • How does KAYAK find such low prices on flights to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to San Francisco are there each week?

    Each week there are around 3,622 direct flights from within Bulgaria to San Francisco. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to San Francisco

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Francisco flight deals.

Reviews of the top 3 airlines serving from Bulgaria to San Francisco

 
See real verified KAYAK customer reviews for airlines flying to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Bulgaria to San Francisco. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Turkish AirlinesOverall score based on 4298 reviews
7.3Comfort
7.3Boarding
7.5Food
7.8Crew
7.5Entertainment
Airline reviews

A lot of snacks and provided on request by traveller. Preferred meals which were on their menu were not always sufficient for those who wanted them. We were told 2 different items and offer which we asked for were not offered initially. We rejected the 3rd item given as a substitute for our initial choices which we didn't want and so we didn't accept it. Eventually our initial choice was offered. During service of coffee and tea, the crew member didn't offer us and moved back. Luckily neither of us wanted tea at that time. Crew members must avoid behavior that may be suggestive of discrimination

8.0 ExcellentOmo, Apr 2026
IST - IAH
Read more Turkish Airlines reviews

A lot of snacks and provided on request by traveller. Preferred meals which were on their menu were not always sufficient for those who wanted them. We were told 2 different items and offer which we asked for were not offered initially. We rejected the 3rd item given as a substitute for our initial choices which we didn't want and so we didn't accept it. Eventually our initial choice was offered. During service of coffee and tea, the crew member didn't offer us and moved back. Luckily neither of us wanted tea at that time. Crew members must avoid behavior that may be suggestive of discrimination

The crew was awesome. My husband fell while traveling to the WC and got a head abrasion. The crew helped him greatly and a physician that was also on the flight checked him out as well. They all get an A+!

Online check in and seat assignments are terrible. All 4 flights

Cabin was kept very hot and it was uncomfortable. Entertainment system did not work at my seat. Crew and service is fantastic

Extremely bad BAD BAD BAD. NEVER TURKISH AIRLINES EVER AGAIN..PIRATES COMPANY.

Typically great service from Turkish with comfortable seat and amenitie, good food and great attention from staff.

Delicious food, comfortable and clean plane. It's a little cramped in the hall in front of the gate.

Very hot cabin made long flight uncomfortable, even in business class! Food was great. Istanbul business lounge had great food but too few bathrooms and seating . They also need more electric outlets for charging devices. Appreciate the ability to go through fast track lines w business class

The crew on this flight provided exceptional business class service to me.

The staff at the boarding or the rudest uninformative and no English whatsoever they’re very rude as if they are envious of you travelling I don’t understand how could someone would be this rude and this out of touch and cold

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

we did a return flight from Paris CDG to SFO. This trip was much better than the departing flight SFO to CDG. The food was better quality, the crew was nicer, and the interior of the plane seemed cleaner.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

We got to get extended leg room in Econ plus that was great. It was nice having our own dietary needs met with our meals, and the connecting flights had it as well. Only negative were the seats my bottom was/is really sore after a ten plus hour flight. Those seats are horrible, understandable for as many people use them. So we are going to purchase a gel seat pad.

Flight to Japan was was better across the board than the return to USA. Entertainment: Movie selection was old and not to my liking. Way too many woke choices. Not enough selections for sports or drama. Service: some of the crew were great. Not all. I paid for business class. a premium. Some of the crew thought they 'had' t do there job instead of wanting to serve and be polite. Food: Way to Japan was good. Way back to USA bad. Boarding: Wat out did not offer Business only; had to go thru general. If you pay for business, you should get business perks. Suggest you look for other than United for travel to Asia

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

The head flight attendant made the trip excellent. He was very accommodating.

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Terrible experience! delay 2 time and say i dont have ticket

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

Generally good. Not their fault but the design of the Boeing 747 had seating supports directly in line with my legs. So my legs always had to straddle this support which caused body misallignment. Such poor design from Boeing. There was no USB port for me to charge my phone. The screen touch control was very poor.

I like crew. They are friendly. The flight was delayed to take off for 1hr and that caused panic at Houston Airport to catch connecting flight due to security check delay. If it has reached on time I would have sufficient time in collecting bags and security check

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Traveling to a place near San Francisco?

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Everything you need to know for your flight to San Francisco

Information on the airport you'll fly into in San Francisco