Find flights
Insights
When to book
FAQs & Tips
Direct Flights
Airlines
Deals

$454 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 6/23. 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
0 bags
Sat 7/6
Sat 7/13

Search 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
In the last 7 days travelers have searched 43,995,393 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Flights to San Francisco - Travel Insights & Trends

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 day to fly to San Francisco?

The average price of all flights to San Francisco clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to San Francisco is Tuesday where tickets can be as cheap as $866. On the other hand, the most expensive day to fly is Sunday, where prices are $1,070 on average.

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 February, where tickets cost $812 on average for one-way flights. On the other hand, the most expensive months are July and January, where the average cost of tickets from Bulgaria is $1,210 and $1,141 respectively. For return trips, the best month to travel is February with an average price of $812.

What is the cheapest time of day to fly to San Francisco?

The average price for all flights to San Francisco depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to San Francisco is generally at night, when flights cost $861 on average. The most expensive time of day to fly to San Francisco is generally in the morning, which is peak travel time and where the average cost of a ticket is $954.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 74 days before departure.

How long is the flight to San Francisco?

The duration of your flight to San Francisco depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to San Francisco on KAYAK are from Sofia, which takes 15h 10m, and Varna, which takes 22h 07m.

How many direct flights to San Francisco are there each day?

There are around 538 direct flights from within Bulgaria to San Francisco every day. Most flights depart in the morning, with 6:00 am the most common departure time and 45% of flights departing in the morning.

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

Each week there are around 3,760 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.

Good to know

Low season

February

High season

August

Cheapest flight

$454
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Sofia to San Francisco

FAQs - booking San Francisco flights

  • How far is San Francisco from central San Francisco?

    The distance between San Francisco and downtown San Francisco is 12 miles.

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

    All flights to San Francisco land at San Francisco. 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.

  • Which airline offers the most flights to San Francisco?

    Of the 10 airlines that fly to San Francisco, United Airlines offers the most flights, with around 1,944 per week, followed by Alaska Airlines with 654 flights per week.

See more FAQs

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.

Prefer to fly non-stop to San Francisco?

Find which airlines fly direct to San Francisco, which days they fly and book direct flights.

Nonstop departures

Bulgaria to San Francisco

Monday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Tuesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Wednesday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Friday

AIR PREMIA, ANA, Aer Lingus, +78 more

AIR PREMIA, ANA, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Sunday

AIR PREMIA, ANA, Aer Lingus, +80 more

AIR PREMIA, ANA, +81 more

See more direct flights

Nonstop returns

San Francisco to Bulgaria

Monday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Tuesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Wednesday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Friday

AIR PREMIA, ANA, Aer Lingus, +78 more

AIR PREMIA, ANA, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Sunday

AIR PREMIA, ANA, Aer Lingus, +80 more

AIR PREMIA, ANA, +81 more

See more direct flights
See more direct flights

Top 4 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.
7.8
KLMOverall score based on 1489 reviews
7.7Comfort
8.4Crew
7.2Entertainment
7.3Food
7.8Boarding
Airline reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

8.0 ExcellentJacob Oluleke, Apr 2024LOS - AMS
Read more about KLM reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Seats are fair enough for medium tall people. Good food all the trip. Fight attendances are warm

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

The food was ok. The crew seemed like they were cranky. I had one guy get mad at me for passing in between the storage area to get to the other toilet. I can understand if it's not allowed but reprimanding me like I'm a student saying "This is the last time!" was not appropriate. During my meal time, there was a French family around me. No problems there but when we usually have meals, they are supposed to put their chair in the upright position. These people did not do it and the steward did not tell them to raise their seat in the upright position. However, I was told to do so! So, me and another person next to me had to eat with the monitor almost touching our faces. Furthermore, a lady in front of me was putting her feet up and preventing another elder passenger from putting her seat back. To make it worse, she was continuously hitting her back into her seat, shaking my monitor while I was watching a movie. A crew member did speak to her about it but then she accused me of pushing her seat forward! The crew member gave me a death stare and told me to stop pushing the seat forward. I did not even touch her seat at all, if I did, she would know it. Her boyfriend also stood up and tried to push her seat even further past the maximum decline to no avail. None of these people were reprimanded but the steward, some bald guy, was extremely friendly with them and did not even try to instruct them to do anything until it was time to land. I resisted the urge to really argue with them because I would have obviously been seen as the aggressor (I have no idea why). I hardly said anything on this flight except "more wine please" and "sorry" if I bumped into someone accidentally. Overall, it was an annoying flight and I had to resist the urge to yell at the steward and the people he was overly friendly with. The happiest moment of this flight was leaving it.

One of the vstewardeses wanted to bump me of the plane for absolutely nothing. There is CCTV in the plane ans everything can be verified. Very disappointing , you all will see, o other 5 years and the passangers who does not smile to flight attendent will be bumped off...

Mostly fine. Minor delays departing and arriving. Quite a cramped plane, not so much as regards legroom but very narrow seats. Quiet nice food. Non-working USB charger. Flight attendants were helpful but not particularly proactive — one had to work to get their attention (but all was fine once they notice you), very Dutch style:)

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

Great service, great food, and comfortable business class seats... Friendly and professional flight attendants and ground crew, overall 5 star experience!

Movie selection was ok, but could be better. Would like to see greater selection of newer movies.

Loved the check-in experience. Very friendly staff and not crowded. I did wind up with a middle-middle seat, which was quite uncomfortable. Always appreciate the very professional staff on TAL.

Paying for reserved seats and never received the seats I paid for !! Just fake and a surprise out of their " box "

Turkish airline always good Only Turkish representatives at the gave need to be more helpfull to any staff who traveling on Turkish airline . One situation happened Ist to jfk on Feb 29 TK3 had seats I asked them to transfer me to tk3 because Feb 29 tk1 was oversold and they advise me that I might not make it for tk1 I asked them to transfer me to tk3 and they say no they can’t do it I been telling them you know that I don’t have a chance for tk 1 why would you let plane go with some empty seats on tk3 if you can transfer me to tk3 and have less staff on tk1 and still told me no I waited for tk1 9 hours and only last minute I got seat on tk1 It was not easy situation but I am glad I made it home Thank you Turkish Airline One more suggestion for Turkish Airline you need to make a FIRST CLASS cabin it would be so cool 🆒 Good luck all the best See you more

First class payment but wife’s seat broken, would recline but not lay flat. On previous flight, delays and ground crew malfunctions connecting jetway made us miss flight to Houston. I asked twice for a cart to assist us getting across the massive Istanbul Airport, but was denied. We are both over 70.

My flight had two legs. When checking in at the first leg the agent offering for a deal to upgrade the leg to first class for $199. He then claimed I would be able to upgrade the second leg once I got to the next airport. I declined and when I inquired about upgrading at the second airport, the cost was $1,300. I also had an issue at the airport lounge. I am allowed one guest in the lounge. My friend came in the lounge for less than 5 minutes and left when she couldn’t get a sleeping suite. I wanted to bring in another friend. The airport staff first started acting as though they didn’t understand English and then became upset when I asked for their names so I could file a complaint. As an elite member I knew they could do more but were not. One of the agents started over talking me and walked away mid conversation dismissing my request for assistance. A man claiming to be the manager said you were asking for her name. He also never tried to assist me or see what was going on. He claimed the interactions were recorded and management would see everything. I’m not sure how that would assist me days later. I am sure it didn’t help that I was a black American woman.

Better attitude training for staff at airport, better training for flight attendants, better food, don’t put us with all the crying babies that cried nonstop for 12 plus hours.

Crew announced boarding started and they asked passengers to form a queue. Actual boarding didn’t start and queue was not moving for around 40-50 mins. Very poor management.

It was a terrible airline. The air hostess and the people in the flight, just very rude.

Everything was great except for one thing. I was sitting in seat 1L with plenty of windows. Because we couldn’t sit next to each other, my husband was in 2L with only one window that he had to almost turnhis neck around to look out. Therefore, the window position with 1/2 of the “window” seats in business class is not optimal

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

Outstanding in all respects. Early boarding left early arrived early. We were in business class, so was perfectly fine.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I really do not like the basic in basic economy.

Marked by flight delays on all segments of the trip. Food in first class cabin was mediocre and overhead cabin storage was not adequate. Overall, the premium charge for first class cabin was poor and over hyped. This will be our last flight with UA.

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

The worst experience of my life and I have been flying for 33 years

We were very upset when we checked in for our flight to be charged 208,00 euro for luggage fees when the site clearly states we are authorized one checked bag each and one carry-on. We have never experienced anything like this with Lufthansa and are very disappointed. We should be reimbursed this erroneous charge. I can forward all receipts once I am able to scan the them.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Crew was very nice and helpful. It was a good flight experience.

Efficient boarding. Good flight but seats were quite uncomfortable considering we'd already been sitting on two flights, total 13 hours or so. Would have liked to have prices on the menu of amenities on the plane. We could have used more water. Restrooms and nonalcoholic beverages at no extra cost, not much else. I realize these were discount tickets, and the airline has to break even, so I can't say we were expecting amenities to be plentiful. Still, it's nice with long flights to discover a few. Very pleasant crew though.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Crew was super rude in business class. Not friendly or helpful. Luggage was damaged and was told to file with United and that was unsuccessful.

Book cheap flights from Bulgaria to San Francisco

Recent round-trip flight deals

 
These are the cheapest round-trip flights to San Francisco found on KAYAK in the last 72 hours.
7/11Thu
1 stopTurkish Airlines
24h 10mSOF-SFO
9/17Tue
1 stopTurkish Airlines
15h 45mSFO-SOF
$788
7/10Wed
1 stopTurkish Airlines
24h 10mSOF-SFO
8/28Wed
1 stopTurkish Airlines
15h 45mSFO-SOF
$795
9/12Thu
2 stopsAir Canada
21h 08mSOF-SFO
9/23Mon
2 stopsAir Canada
19h 55mSFO-SOF
$801
6/20Thu
2 stops
31h 39mSOF-SFO
9/15Sun
2 stops
22h 27mSFO-SOF
$806
9/12Thu
1 stopLufthansa
16h 05mSOF-SFO
9/23Mon
1 stopLufthansa
23h 20mSFO-SOF
$809
9/12Thu
1 stopUnited Airlines
16h 05mSOF-SFO
9/23Mon
2 stopsUnited Airlines
19h 00mSFO-SOF
$811
6/20Thu
1 stopUnited Airlines
18h 20mSOF-SFO
9/15Sun
1 stopUnited Airlines
35h 25mSFO-SOF
$835
7/11Thu
2 stopsAir Canada
21h 09mSOF-SFO
11/5Tue
2 stopsAir Canada
21h 18mSFO-SOF
$857
7/11Thu
2 stops
21h 09mSOF-SFO
9/17Tue
2 stops
18h 50mSFO-SOF
$859
7/11Thu
2 stopsLufthansa
20h 54mSOF-SFO
11/6Wed
1 stopLufthansa
16h 10mSFO-SOF
$878

Search by stops

Search by airline

Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to San Francisco found on KAYAK in the last 72 hours.
6/23Sun
2 stops
44h 35mSOF-SFO
$454
7/10Wed
3 stops
41h 55mSOF-SFO
$495
7/4Thu
3 stops
44h 44mVAR-SFO
$521
7/9Tue
1 stopTurkish Airlines
29h 30mSOF-SFO
$709
9/30Mon
2 stopsAir Serbia
25h 50mSOF-SFO
$715
7/13Sat
1 stopTurkish Airlines
24h 10mSOF-SFO
$741
8/7Wed
1 stopLufthansa
27h 55mSOF-SFO
$943
7/6Sat
2 stopsAir Serbia
29h 44mVAR-SFO
$1,043
8/7Wed
3 stopsUnited Airlines
26h 36mSOF-SFO
$1,376
7/13Sat
1 stopLufthansa
16h 45mVAR-SFO
$1,385

Search by stops

Search by airline

Search by price

Last minute flights to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to San Francisco that are departing in the next 10 days.
6/11Tue
multi-stopUnited Airlines
35h 00mSOF-SFO
9/20Fri
multi-stopUnited Airlines
22h 40mSFO-SOF
$880
6/11Tue
multi-stopAmerican Airlines
30h 28mSOF-SFO
9/20Fri
multi-stopAmerican Airlines
25h 40mSFO-SOF
$890
6/11Tue
multi-stop
15h 10mSOF-SFO
9/20Fri
multi-stop
17h 10mSFO-SOF
$894
6/11Tue
multi-stopLufthansa
16h 05mSOF-SFO
9/20Fri
multi-stopLufthansa
17h 10mSFO-SOF
$896
6/11Tue
multi-stop
42h 25mSOF-SFO
9/20Fri
multi-stop
20h 15mSFO-SOF
$1,109
6/8Sat
multi-stopAir Canada
24h 07mSOF-SFO
6/11Tue
multi-stopAir Canada
19h 40mSFO-SOF
$2,979
6/8Sat
multi-stopUnited Airlines
17h 50mSOF-SFO
6/11Tue
multi-stopUnited Airlines
34h 40mSFO-SOF
$3,041
6/8Sat
multi-stop
23h 37mSOF-SFO
6/11Tue
multi-stop
28h 30mSFO-SOF
$3,328
6/8Sat
multi-stopUnited Airlines
18h 20mSOF-SFO
6/11Tue
multi-stopUnited Airlines
34h 40mSFO-SOF
$3,665
6/8Sat
multi-stop
18h 20mSOF-SFO
6/11Tue
multi-stop
28h 30mSFO-SOF
$3,945

Search by stops

Search by airline

Search by price

Flights to San Francisco

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Bulgaria

Cabin classes: