SOF - SFO

$523 Find Cheap Flights from Sofia 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 from Sofia to San Francisco departing on 5/2. 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 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

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

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

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

Everything you should know

Cheapest round-trip
$875
Typical prices: $839-$821
Multiple Airlines
Tue 9/1Sun 9/13
SOF - SFO • 2 stops
Cheapest one-way
$491
Multiple Airlines
Sat 5/2
SOF - SFO • 3 stops
Top airlines
Cheapest • from $902 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sofia and San Francisco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $948 (round-trip)
Shortest trip • 15h 40m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sofia to San Francisco

Tue, Sep 1 - Sun, Sep 13
Multiple Airlines Logo
11:25 pm - 2:35 pm
SOF
-
SFO
25h 10m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$875Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Multiple Airlines Logo
11:25 pm - 2:35 pm
SOF
-
SFO
25h 10m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$892Multiple Airlines
Thu, May 7 - Thu, May 21
LOT Logo
5:25 am - 1:50 pm
SOF
-
SFO
18h 25m
1 stop
LOT Logo
3:50 pm - 1:55 am
SFO
-
SOF
24h 05m
1 stop
$902LOT
Thu, May 7 - Thu, May 21
LOT Logo
5:25 am - 1:50 pm
SOF
-
SFO
18h 25m
1 stop
LOT Logo
3:50 pm - 1:55 am
SFO
-
SOF
24h 05m
1 stop
$904LOT
Thu, May 21 - Wed, Jun 3
LOT Logo
5:25 am - 1:50 pm
SOF
-
SFO
18h 25m
1 stop
LOT Logo
10:15 pm - 1:50 pm
SFO
-
SOF
29h 35m
1 stop
$908LOT
Sun, Aug 30 - Mon, Sep 14
Multiple Airlines Logo
6:15 am - 2:05 pm
SOF
-
SFO
41h 50m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$909Multiple Airlines
Thu, Sep 3 - Sun, Sep 13
LOT Logo
5:25 am - 1:50 pm
SOF
-
SFO
18h 25m
1 stop
LOT Logo
3:50 pm - 6:00 pm
SFO
-
SOF
16h 10m
1 stop
$918LOT
Tue, Sep 1 - Thu, Sep 10
Multiple Airlines Logo
11:25 pm - 2:35 pm
SOF
-
SFO
25h 10m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$924Multiple Airlines
Fri, Sep 4 - Wed, Sep 16
Multiple Airlines Logo
12:40 pm - 5:35 pm
SOF
-
SFO
38h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$925Multiple Airlines
Thu, Sep 3 - Sun, Sep 13
Multiple Airlines Logo
12:55 pm - 12:47 pm
SOF
-
SFO
33h 52m
2 stops
Multiple Airlines Logo
9:05 pm - 11:15 pm
SFO
-
SOF
16h 10m
1 stop
$926Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sofia to San Francisco flights

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.

How much is a round-trip flight from Sofia to San Francisco?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sofia to San Francisco departing in September.

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 round-trip 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 September, where tickets cost $821 (return) on average. On the other hand, the most expensive months are August and October, where the average cost of round-trip tickets is $1,074 and $1,020 respectively.

How far in advance should I book a flight from Sofia 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 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 week.

To get a below average price on the flight from Sofia to San Francisco, 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 13 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$491
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 8% 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 $491 for a one-way ticket and $875 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?

    Star Alliance is the only airline alliance operating flights between Sofia and San Francisco.

  • 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 $921 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 $941 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.

Reviews of the top 3 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.
7.4
Turkish AirlinesOverall score based on 4326 reviews
7.3Comfort
7.5Entertainment
7.3Boarding
7.8Crew
7.5Food
Airline reviews

I will say the same as my previous comment. Great job over all! From 1-10, ten be the best… I will give 9!

10.0 ExcellentAnonymous, Apr 2026
IST - BOS
Read more Turkish Airlines reviews

I will say the same as my previous comment. Great job over all! From 1-10, ten be the best… I will give 9!

had to wait 1 hour once boarded. so we were 1 hour late arriving.

They are absolutely impossible to get hold of. A death in the family caused us to delay our departure. They are impossible to get through to and after waiting 41/2 hours I was told they would not consider helping us. They cancelled our return flight and have not reimbursed anything. I strongly urge readers to consider a different airline.

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.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Meals were poor and service rendered on return flight was mediocre as compared to the flight we took to Germany earlier where the attendants were more attentive, energetic, and mindful of passengers' needs. Thumbs up to crew of UA 58. Thumbs down to UA 59..

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

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

Service was excellent. Flight was only about half full, which meant we had tons of room to stretch out. Boarding area was nice and well organized, flight attendants were super friendly and attentive and we loved the 3 snacks!

My flight was cancelled, but it was not Kayak's fault. Kayak did require me to pay for the ticket twice to two different venders who paid Lufthansa. Kayak/Lufthansa owes me for the first booking I made first was fraudulent on the part of the subcontracting ticket seller. There will be litigation over this issue under the current passenger protection laws.

Original Lufthansa flights were canceled and the alternative route that was offered required cab transfer in New York from JFK to Newark at my own expense. Who can refund these $218?

flight was half full, plenty of empty seats, was able to lie down across 4 seats, food was good, arrived on time

flight was packed, had to check my carryon bag, tiny snack bag offered, but we arrived on time and thats what counts

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Our flight was completely cancelled with no options to rebook until 4 days later.

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.

Patrick and the whole crew were amazing! Hope to have this team for all my European trips.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

Everything you need to know for your flight from Sofia to San Francisco

Information on your arrival and departure airports