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SFO - SOF

Find cheap flights from San Francisco to Sofia from $367

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Sofia departing on 7/22. 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 Sofia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Sofia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Sofia.
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Sofia 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
7:40 pm - 1:10 pmSFO-SOF
31h 30m1 stop
4:30 pm - 4:15 pmSOF-SFO
33h 45m1 stop
$571SWISS
Find Deal
Mon, Oct 21 - Mon, Nov 4
10:31 pm - 8:30 pmSFO-SOF
35h 59m2 stops
9:15 pm - 5:25 pmSOF-SFO
30h 10m1 stop
$572British Airways
Find Deal
Tue, Sep 24 - Tue, Oct 8
4:01 pm - 6:45 pmSFO-SOF
16h 44m2 stops
4:30 pm - 4:15 pmSOF-SFO
33h 45m1 stop
Mon, Oct 21 - Mon, Nov 4
9:05 pm - 11:00 pmSFO-SOF
15h 55m1 stop
6:30 am - 12:40 pmSOF-SFO
16h 10m1 stop
$604Lufthansa
Find Deal
Tue, Sep 24 - Tue, Oct 8
9:59 pm - 4:45 pmSFO-SOF
32h 46m2 stops
12:55 pm - 1:15 pmSOF-SFO
34h 20m1 stop
$615ITA Airways
Find Deal
Mon, May 6 - Mon, May 13
9:59 pm - 4:45 pmSFO-SOF
32h 46m2 stops
12:55 pm - 6:28 pmSOF-SFO
39h 33m2 stops
$710ITA Airways
Find Deal
Mon, May 6 - Mon, May 13
9:05 pm - 11:00 pmSFO-SOF
15h 55m1 stop
6:00 am - 9:00 pmSOF-SFO
25h 00m1 stop
$761Lufthansa
Find Deal
Tue, May 21 - Tue, Jun 18
2:40 pm - 11:00 pmSFO-SOF
22h 20m2 stops
6:00 am - 2:20 pmSOF-SFO
18h 20m1 stop
$777United Airlines
Find Deal
Tue, May 21 - Tue, Jun 18
12:09 am - 11:20 amSFO-SOF
25h 11m2 stops
6:00 am - 2:20 pmSOF-SFO
18h 20m1 stop
$781United Airlines
Find Deal
Tue, May 14 - Wed, May 29
6:35 pm - 8:30 amSFO-SOF
27h 55m1 stop
9:10 pm - 4:40 pmSOF-SFO
29h 30m1 stop
$1,065Turkish Airlines
Find Deal
Thu, May 9 - Tue, Jun 11

Flights from San Francisco to Sofia - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Sofia 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 San Francisco to Sofia?

The average price of all flights from San Francisco to Sofia clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Sofia on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from San Francisco to Sofia. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Sofia, 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 San Francisco to Sofia is February, where tickets cost $680 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,679 and $1,540 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to Sofia, 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 San Francisco to Sofia, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 80 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting San Francisco to Sofia were found on SWISS ($571) and British Airways ($572). ITA Airways proposed the cheapest one-way flight at $535.

Good to know

Low season

March

High season

June

Cheapest flight

$367
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 72% increase in price.
Flight from San Francisco to Sofia

When to book flights from San Francisco to Sofia

Are your dates flexible? Find out the best times to travel from San Francisco to Sofia 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 San Francisco to Sofia

  • Are there opportunities to upgrade to first class on flights from San Francisco to Sofia?

    You can upgrade to first class on the San Francisco to Sofia route if you need a smooth journey. Upgrading is cheaper than originally booking first class. In general, your airline emails you about available first-class seats and requests you to upgrade. However, consider your travel budget before upgrading to avoid inconveniences. In addition, you need to upgrade at least 24 hours before take-off.

  • What are the popular layovers on the San Francisco to Sofia route?

    Most airlines from San Francisco to Sofia, including SWISS, Austrian Airlines, and British Airways, have one or more stopovers. The layover city and duration vary. Therefore, research the flight route before booking to choose the best journey. The major layover cities include Zurich, Amsterdam, Frankfurt, Munich, Copenhagen, Paris, London, Dublin, Rome, Istanbul, Barcelona, Lisbon, Tel Aviv, Doha, and Dubai.

  • Which airlines fly sustainably from San Francisco to Sofia?

    SWISS offers a sustainable journey by using sustainable aviation fuel (SAF). These airlines aim to make these fuels their long-term goal to reduce carbon emissions. Turkish Airlines ensure sustainability through its ground and operational practices. These airlines use sustainable aviation fuel to lower greenhouse gas emissions.

  • How can I travel from Sofia Airport to Downtown Sofia?

    The Line 20 tram offers a reliable journey from SOF airport to downtown. The trip takes approximately 56 minutes, depending on the traffic or local stops. If you have heavy luggage or need a quick trip to the city, consider taking a shuttle or taxi to get there in about 8 minutes. If you take Line 2 via the subway, you arrive in the city in around 16 minutes. Another option is a rental car to drive at your own pace.

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

    In the last 3 days, the lowest price for a flight from San Francisco to Sofia was $367 for a one-way ticket and $571 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from San Francisco to Sofia?

    San Francisco and Sofia are both served by 1 main airport. You will leave San Francisco from San Francisco and will be arriving at Sofia.

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

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

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

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

  • What is the most popular layover when flying to Sofia from San Francisco?

    Istanbul is the most popular layover city among KAYAK users traveling from San Francisco to Sofia.

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Sofia are SWISS and Turkish Airlines. With an average price for the route of $1,247 and an overall rating of 7.8, SWISS is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $978 and an overall rating of 7.4.

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

    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 San Francisco to Sofia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from 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 from San Francisco to Sofia?

    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 Sofia with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and SOF 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 San Francisco to Sofia?

    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 Sofia from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from SFO to Sofia

  • San Francisco International Airport (SFO) is a hub for Alaska Airlines and United Airlines. It serves as a gateway to European, Asian, and American destinations. On the other hand, Sofia Airport (SOF) is a hub for Wizz Air, BH Air, and Bulgaria Air.
  • Low-cost airlines on the San Francisco to Sofia route, including Lufthansa, Austrian Airlines, and Turkish Airlines, allow passengers to save money on their trip. Most of these airlines charge competitive ticket prices, and you can choose a convenient journey.
  • SFO airport offers VIP services to notable persons such as the military. These services include quality airport transportation, meet and greet upon arrival, priority check-in, luggage assistance, access to the VIP lounge, and priority boarding.
  • Austrian Airlines offer special meals to passengers with religious, medical, or dietary needs on cheap flights from San Francisco to Sofia. These airlines offer a wide range of meals, including low-cholesterol, gluten-free, Muslim, and kosher. However, you have to order at least 24 hours before departure.
  • You can take the BART train from Downtown San Francisco to SFO airport, arriving in about 36 minutes. Another option is the Line 292 bus that gets you to the airport in approximately 1h 15min. If you're running late and need a quick journey, a taxi takes about 16 minutes.
See more tips

Top 5 airlines serving from San Francisco to Sofia

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Sofia. 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 San Francisco to Sofia? 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 3688 reviews
7.4comfort
7.5entertainment
7.8crew
7.4food
7.4boarding
Airline reviews

Nothing really was great as such. Seen other no name airlines perform better.

4.0 OkayAkash, Apr 2024IAD - IST
Read more about Turkish Airlines reviews

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

Oh my god! For an13 hour flight they serve you food just one time. Also don’t be thirsty they give you a little small cup of soda to drink. They seem like their goal is to feed you one so they don’t have to be bothered with you. It quite surprise for such a long flight there are several times to eat at least three and the food was well lackluster. The food and lack of offering drinks which were always hot no ice provided.

We were traveling first class. Checkin counter lady and her manager, both were in bad mood and did not treat us well about checking in the handbag. The gate agent took care of it right away. I travel Turkish twice a year in first class. No one has ever refused to check in the hand bag. Not sure, why this agent and her manager refused. Everything else was excellent.

The 787 economy was a disaster for long haul. The space was too little compared to 777 or 747. Also the extremely low tray table behind the seat made any dining effort a nightmare. However, the movies were up to date, and the food taste was good, despite of terrible serving process caused by small space.

A little bit more comfort. It’s tight space around the seats. But all else is great and a smooth flight!

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

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

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

Horrible crowding on the seats, headphones provided did not fit or work in the entertainment center, seriously the most uncomfortable flight I have taken in a LONG time. The people in front of me were literally 5 inches from my face the entire flight. Did they change their seats recently? I remember it being tight but wow this was a whole new level. Also I am a 5'3" small woman so I can't even imagine a larger person dealing with that for 11 hrs.

Seat controls of lights were broken, and only 1 of the 2 seat TVs ever worked on the long flight. On the short flight there were no USB connections, on the long one they were difficult to access. Part of my meal was frozen, though the hot portion was good.

Lufthansa fails at mentioning no luggage when booking through points. We had to pay added fees to take checked bags to Europe for 2 weeks. The staff at check in were not helpful at all. told us "if we don't like it, then book another flight". Food was bad, they ran out of half the options. Vegetarian was terrible. The flight crew was nice, and tried to make it work ok.

The accommodations are top-notch. The only negative was that both our initial flights were delayed, which caused us to miss one and almost miss the other. The staff immediately handled the missed flight and compensated us for the inconvenience.

I really like it and travel to Europe and back with Lufthansa, but it is getting expensive, a bit beyond my me

Food could be better quality - everything else was excellent , thanks Lufthansa team . GOD bless you!!!

Great except my luggage was. Lost my entire. Trip and I had. To go buy things and waste. Time trying to find. My luggage

Plane was old and the persons chair in front wasn’t easy to move up so he had it back most of the flight including during meals. The touchscreen was not working well and selections weren’t good. First time on a flight I really had a hard time finding something to watch. The crew was great and without them, it would have been a bust. Pilot got us there in record time.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Not sure if the crew were experiencing something unknown to me,but the service of passing water was non-existent.In addition,please take consideration when providing yogurt as alternative for breakfast as some of us, could be lactose intolerant.. thanks

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Leg room was better than expected. Lavatory’s were easy to access.crew was grea!

Ok, but no entertainment. Left late, but made up most of the time.

May be it is not an ITA issue, but the bags took long time to go out.

Good. But there food was poor quality and 95% of movies didn't have English subtitles

I thought they had rebranded themselves in every aspect but it was quite the opposite. The food was terrible the service was sub-par. Overall it was not a good experience.

Service from staff was poor, food choices were limited. Air plane was not clean or hygienic and seemed like not cleaned for days. Seats were uncomfortable.

service from stAff was barely there , food choices were limited. AirPlane was not clean and seemed like it was not cleaned for days.. Seats were very uncomfortable.

I paid for premium seats and the last minute they changed the aircraft for a bigger one, they bumped me to another seat which was NOT at all comfortable for an 11 hour flight, will fight for a refund!!

The landing was catastrophic. I was very scared. I thought it were my last lminues. Pilotes should be more experienced

ALL services were good. An announcement should’ve been made at the end of the flight that filling out a customs form would not be necessary anymore for USA travelers entering Philadelphia.

The flight was smooth, the premier economy seats were comfortable, the flight crew were excellent. The on board food, however, was AWFUL. I suggest bringing your own food on board.

Book cheap flights from San Francisco to Sofia

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Sofia found on KAYAK in the last 72 hours.
7/22Mon
3 stops
36h 30mSFO-SOF
$367
6/24Mon
3 stops
40h 56mSFO-SOF
$398
7/9Tue
3 stops
58h 34mSFO-SOF
$399
7/18Thu
2 stops
19h 15mSFO-SOF
$411
7/16Tue
1 stopITA Airways
15h 55mSFO-SOF
$535
7/15Mon
2 stopsITA Airways
34h 10mSFO-SOF
$677
6/24Mon
1 stopLufthansa
21h 55mSFO-SOF
$763
7/14Sun
2 stopsUnited Airlines
25h 35mSFO-SOF
$796
6/12Wed
1 stopUnited Airlines
15h 55mSFO-SOF
$797
7/12Fri
1 stopTurkish Airlines
15h 40mSFO-SOF
$1,003

Search by stops

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Last minute flights from San Francisco to Sofia

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 San Francisco to Sofia that are departing in the next 10 days.
4/26Fri
multi-stopITA Airways
15h 55mSFO-SOF
5/2Thu
multi-stopITA Airways
29h 15mSOF-SFO
$589
4/26Fri
multi-stopBritish Airways
34h 47mSFO-SOF
5/4Sat
multi-stopBritish Airways
27h 10mSOF-SFO
$632
4/26Fri
multi-stopBritish Airways
34h 47mSFO-SOF
5/4Sat
multi-stopBritish Airways
27h 10mSOF-SFO
$633
4/26Fri
multi-stopBritish Airways
34h 20mSFO-SOF
5/4Sat
multi-stopBritish Airways
31h 55mSOF-SFO
$643
4/26Fri
multi-stopITA Airways
33h 11mSFO-SOF
5/2Thu
multi-stopITA Airways
29h 15mSOF-SFO
$727
4/30Tue
multi-stop
27h 11mSFO-SOF
5/11Sat
multi-stop
20h 00mSOF-SFO
$761
4/26Fri
multi-stopITA Airways
33h 11mSFO-SOF
5/2Thu
multi-stopITA Airways
36h 47mSOF-SFO
$847
4/26Fri
multi-stopBritish Airways
34h 20mSFO-SOF
5/4Sat
multi-stopBritish Airways
37h 03mSOF-SFO
$877
4/28Sun
multi-stop
19h 11mSFO-SOF
4/30Tue
multi-stop
26h 35mSOF-SFO
$1,080
4/28Sun
multi-stop
19h 11mSFO-SOF
4/30Tue
multi-stop
29h 05mSOF-SFO
$1,151

Search by stops

Search by airline

Search by price

San Francisco - Sofia Flights

Departure:

San Francisco (SFO)United States

Destination:

Sofia (SOF)Bulgaria

Return flight deals:

Sofia - San Francisco

Cabin classes:

Browse destinations: