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SOF - SFO

Find cheap flights from Sofia to San Francisco from $634

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to San Francisco departing on 9/24. 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 5/25
Sat 6/1

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 in flight searches from Sofia 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 in flight searches from Sofia to San Francisco, as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

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Cheap flight deals from Sofia to San Francisco (SOF-SFO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia 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 and deals for you by selecting your travel dates.
Choose your dates
9:20 pm - 1:15 pmSOF-SFO
25h 55m1 stop
3:30 pm - 8:25 pmSFO-SOF
18h 55m1 stop
$776British Airways
Find Deal
Thu, Sep 12 - Mon, Sep 23
9:20 pm - 1:15 pmSOF-SFO
25h 55m1 stop
3:30 pm - 8:25 pmSFO-SOF
18h 55m2 stops
$787British Airways
Find Deal
Thu, Sep 12 - Mon, Sep 23
6:00 am - 5:06 pmSOF-SFO
21h 06m2 stops
6:20 am - 11:20 amSFO-SOF
19h 00m2 stops
$803United Airlines
Find Deal
Thu, Sep 12 - Mon, Sep 23
9:10 pm - 4:40 pmSOF-SFO
29h 30m1 stop
6:35 pm - 8:20 pmSFO-SOF
15h 45m1 stop
$894Turkish Airlines
Find Deal
Sun, May 19 - Thu, Jul 11
2:05 pm - 12:40 pmSOF-SFO
32h 35m1 stop
6:30 am - 6:00 pmSFO-SOF
25h 30m2 stops
Sun, May 19 - Thu, Jul 11
6:30 am - 12:40 pmSOF-SFO
16h 10m1 stop
10:05 pm - 11:20 amSFO-SOF
27h 15m2 stops
Fri, Jun 7 - Sat, Jun 15
6:30 am - 8:02 pmSOF-SFO
23h 32m2 stops
10:05 pm - 11:20 amSFO-SOF
27h 15m2 stops
$910Air Canada
Find Deal
Fri, Jun 7 - Sat, Jun 15
2:05 pm - 12:40 pmSOF-SFO
32h 35m1 stop
12:45 am - 6:45 pmSFO-SOF
32h 00m2 stops
$911United Airlines
Find Deal
Sun, May 19 - Wed, Jul 10
9:20 am - 4:40 pmSOF-SFO
17h 20m1 stop
1:15 pm - 8:30 amSFO-SOF
33h 15m1 stop
$950Turkish Airlines
Find Deal
Fri, Jun 7 - Sat, Jun 15
6:30 am - 11:21 pmSOF-SFO
26h 51m2 stops
4:35 pm - 1:20 pmSFO-SOF
34h 45m2 stops
$977Air Canada
Find Deal
Fri, Aug 9 - Sat, Aug 24

Flights from Sofia to San Francisco - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Sofia to San Francisco?

The average price of all flights from Sofia to San Francisco clicked on KAYAK for each day over the last 12 months.
For Sofia to San Francisco, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from San Francisco back to Sofia, the best deals are generally found on Sunday, with Saturday being the most expensive.

What is the cheapest month to fly from Sofia to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Sofia 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 from Sofia to San Francisco is January, where tickets cost $757 on average. On the other hand, the most expensive months are August and July, where the average cost of tickets is $1,031 and $1,030 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Sofia 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 on the flight from Sofia to San Francisco, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 17 days before departure.

Which airlines provide the cheapest flights from Sofia to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, British Airways offered the best one-way deal for that route, at $713. KAYAK users also found Sofia to San Francisco round-trip flights on British Airways from $776 and on United Airlines from $803.

Good to know

Low season

February

High season

December

Cheapest flight

$634
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Sofia to San Francisco

When to book flights from Sofia to San Francisco

Are your dates flexible? Find out the best times to travel from Sofia to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sofia to San Francisco

  • What is the cheapest flight from Sofia to San Francisco?

    In the last 3 days, the lowest price for a flight from Sofia to San Francisco was $634 for a one-way ticket and $776 for a round-trip.

  • Do I need a passport to fly between Sofia and San Francisco?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Sofia and on arrival in San Francisco.

  • Which aircraft models fly most regularly from Sofia to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sofia to San Francisco?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Sofia and San Francisco, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sofia to San Francisco, Turkish Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sofia to San Francisco are Turkish Airlines and United Airlines. With an average price for the route of $888 and an overall rating of 7.4, Turkish Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,077 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sofia 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 from Sofia to San Francisco.

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

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

  • What is the Hacker Fare option on flights from Sofia 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 to Sofia with another airline. Booking your flights between Sofia and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia 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 from Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Sofia to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Sofia to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia 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 1629 reviews
8.4crew
7.8boarding
7.6comfort
7.3food
7.3entertainment
Airline reviews

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.

8.0 ExcellentAnonymous, Feb 2024AMS - ATL
Read more about KLM reviews

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.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

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.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

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...

The food quality is poor. The staff are very friendly and accommodating. The entertainment program was limited. I experienced a delay of 30 minutes due to two issues. Passenger luggage had to be removed and there was a technical issue with the stairs not detaching from the aircraft. The pilot managed to compensate and we arrived only 15 minutes later. The luggage at Dubai airport was very slow. I waited over an hour.

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

Amazing KLM service and brilliant economy comfort seats. Well worth the extra.

The boarding was one of the worst I’ve ever experienced. The fault lays on Ohare Airport and not so much the airline. The waiting area by the gate was the size to accommodate a regional flight for 20-30 people and right next to a busy walkway. When you cramped nearly 300 passengers into that space is was unbearable.

All and all pretty good. It’s crowded but that is what flying is all about. But no complaints otherwise.

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.

Crew on this flight was terrible. Especially one practicular female , she was harassing us and other families with children. Flight was good overall, if not her being rude and aggressive

Our seat tv didn’t work All the rest was perfect

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

the plane was old. the wifi didn’t work. the entertainment was boring and dated. the charging ports were impossible to find. i was mostly ignored by flight attendants that had no problem speaking to the man beside me. i got two drinks the entire time i was on the plane.

Quit making seats narrower and narrower. The guy beside me spilled over in to my seat.

The service was non existent . Crew did very little didn’t even answer call button . Premium economy in this long haul was the worst I have ever experienced . Never again flying with them .

The crews are great.. Easy boarding. Inflight entertainment ok. Food is a disappointment.

The real big issue with this flight was that it was 3 hours delayed. Other than that, no big praises or complaints.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

During the flight there was a medical emergency. We were diverted. Of course I'm thankful they cared for the health of that passenger, but they did a poor job of communicating with the rest of us passengers. In the end we arrived at our destination several hours late, with no direction of how to rebook missed connecting flights. It all worked out in the end. Those of us that needed accommodations were put up in a hotel by Lufthansa until we could make it to our final destination. But it was United Airlines Personnel who really helped us navigate the process.

Always a pleasure to deal with United's helpful and knowledgeable staff

Book cheap flights from Sofia to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Sofia to San Francisco found on KAYAK in the last 72 hours.
9/24Tue
3 stops
34h 06mSOF-SFO
$634
9/24Tue
2 stops
35h 46mSOF-SFO
$663
9/24Tue
1 stopBritish Airways
26h 00mSOF-SFO
$713
8/8Thu
1 stopTurkish Airlines
24h 10mSOF-SFO
$783
8/8Thu
2 stops
21h 56mSOF-SFO
$803
8/7Wed
1 stopTurkish Airlines
29h 35mSOF-SFO
$808
8/5Mon
2 stopsAustrian Airlines
28h 40mSOF-SFO
$814
8/5Mon
1 stopUnited Airlines
19h 30mSOF-SFO
$1,017
8/6Tue
1 stopUnited Airlines
35h 55mSOF-SFO
$1,033
8/11Sun
2 stopsAustrian Airlines
31h 20mSOF-SFO
$1,038

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Last minute flights from Sofia 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 from Sofia to San Francisco that are departing in the next 10 days.
4/27Sat
multi-stopUnited Airlines
18h 30mSOF-SFO
5/18Sat
multi-stopUnited Airlines
40h 45mSFO-SOF
$844
4/27Sat
multi-stopUnited Airlines
28h 38mSOF-SFO
5/18Sat
multi-stopUnited Airlines
40h 45mSFO-SOF
$854
4/27Sat
multi-stop
15h 20mSOF-SFO
5/18Sat
multi-stop
15h 55mSFO-SOF
$912
4/27Sat
multi-stopUnited Airlines
18h 30mSOF-SFO
5/17Fri
multi-stopUnited Airlines
25h 31mSFO-SOF
$972
4/27Sat
multi-stopUnited Airlines
20h 05mSOF-SFO
5/17Fri
multi-stopUnited Airlines
25h 31mSFO-SOF
$982

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Sofia - San Francisco Flights

Departure:

Sofia (SOF)Bulgaria

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Sofia

Cabin classes: