$344 Find Cheap Flights from Sofia to California

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 California departing on 4/20. 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 California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to California, 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 California, as well as popular online travel agencies
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Cheap Flights from Sofia to California

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$535
San Francisco
San Francisco2 stops$618
San Diego
San Diego2 stops$828
San Jose
San Jose2 stops$911
Los Angeles
Los Angeles1 stop$535
San Francisco
San Francisco2 stops$618
San Diego
San Diego2 stops$828
San Jose
San Jose2 stops$911

Book Cheap Sofia to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to California 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 California

Mon, Feb 9 - Sun, Feb 15
Multiple Airlines Logo
4:45 pm - 6:05 pm
SOF
-
LAX
35h 20m1 stop
Multiple Airlines Logo
7:55 pm - 11:30 pm
LAX
-
SOF
17h 35m1 stop
$535Multiple Airlines
Mon, Feb 9 - Tue, Feb 17
Multiple Airlines Logo
2:35 pm - 6:05 pm
SOF
-
LAX
37h 30m1 stop
Multiple Airlines Logo
5:30 pm - 6:20 pm
LAX
-
SOF
14h 50m1 stop
$542Multiple Airlines
Wed, Apr 29 - Sat, May 9
British Airways Logo
9:25 pm - 6:15 pm
SOF
-
LAS
30h 50m2 stops
British Airways Logo
11:51 am - 8:20 pm
LAS
-
SOF
22h 29m2 stops
$780British Airways
Mon, Mar 30 - Fri, May 1
British Airways Logo
8:10 pm - 4:22 pm
SOF
-
ONT
30h 12m2 stops
British Airways Logo
11:59 pm - 8:10 pm
ONT
-
SOF
34h 11m2 stops
$826British Airways
Wed, Apr 29 - Sat, May 9
Lufthansa Logo
1:50 pm - 12:50 am
SOF
-
LAS
21h 00m2 stops
Lufthansa Logo
9:10 pm - 10:50 pm
LAS
-
SOF
15h 40m1 stop
$843Lufthansa
Mon, Feb 2 - Mon, Feb 16
Lufthansa Logo
2:20 pm - 12:57 am
SOF
-
LAS
20h 37m2 stops
Lufthansa Logo
1:35 pm - 10:45 pm
LAS
-
SOF
23h 10m2 stops
$845Lufthansa
Wed, Apr 1 - Thu, Apr 30
KLM Logo
7:00 am - 5:13 pm
SOF
-
ONT
20h 13m2 stops
KLM Logo
7:30 am - 2:00 pm
ONT
-
SOF
20h 30m2 stops
$874KLM
Tue, Mar 31 - Thu, Apr 30
KLM Logo
7:00 am - 5:13 pm
SOF
-
ONT
20h 13m2 stops
KLM Logo
7:30 am - 2:00 pm
ONT
-
SOF
20h 30m2 stops
$875KLM
Mon, Feb 2 - Mon, Feb 16
United Airlines Logo
2:20 pm - 10:53 pm
SOF
-
ONT
18h 33m2 stops
United Airlines Logo
6:37 pm - 10:45 pm
ONT
-
SOF
18h 08m2 stops
$928United Airlines
Tue, Mar 31 - Tue, Apr 28
United Airlines Logo
6:10 am - 10:26 pm
SOF
-
ONT
26h 16m2 stops
United Airlines Logo
1:34 pm - 6:00 pm
ONT
-
SOF
18h 26m2 stops
$929United Airlines
Booking Insights

KAYAK's insights & trends for Sofia to California flights

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

What is the cheapest month to fly from Sofia to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to California, 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 California is February, when tickets cost $793 (return) on average. On the other hand, the most expensive months are May and January, when the average cost of round-trip tickets is $981 and $939 respectively.

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

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 California, 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 California, you should book around 4 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$344
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Sofia to Los Angeles

FAQs - booking California flights

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

    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 California.

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

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

    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 from Sofia to California 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 from Sofia to California?

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

Reviews of the top 5 airlines serving from Sofia to California

 
See real verified KAYAK customer reviews for airlines flying from Sofia to California. 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 California? 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.
7.6
Austrian AirlinesOverall score based on 889 reviews
6.8Food
8.1Crew
6.8Entertainment
7.3Comfort
7.6Boarding
Airline reviews

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

10.0 ExcellentLeida, Nov 2025
VIE - EWR
Read more Austrian Airlines reviews

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

My layover in Vienna was supposed to be 35 minutes but because my flight was canceled I had to wait in the airport for an additional 8 hours.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

My flight was canceled and even though I paid אם KAYAK you didn't even answer me and obviously didn't refund my money. I will never buy a ticket through you again.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices.

We had a wonderful experience overall. The only issue was check-in our luggage at the Split Airport counter. It was very confusing because we needed to pay for baggage.

Landing was a little hard. Food was not great My prior review was for the flight to nyc too

Good in general, but i think the chair is not comfortable for traveling more than 2 hours ..

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

Horrible communication, flight boarded then we sat on plane for almost 5 hours as the runway was barely covered in snow with no plows in sight and the as we tried to taxi there was a major equipment failure due to poor push off technique causing all passengers to be taken off the flight to ultimately have the flight cancelled. There was barely any communication to passengers as to what was happening or what to do next to get placed on another flight. Arriving to my final destination a whole day later having to take a connecting flight through Lisbon to ultimately end up in New York instead of a direct flight as none available for the next day. Never flying LOT airlines again!

Although I was flying in business class, the feeling, comfort and in general the whole experience was like flying in a low cost airline. Boarding by. Us, no priority to business class passengers. The plane was very old and looked poor and rely old. Seats do not recline. Space between rows very small. No separation between business class and economy. No separate toilet for business class passengers. Of course no entertainment, no WiFi and no charging. Very bad experience

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

Very poor. Seats like economy class, food unbeatable, no charging, no entertainment, no WiFi, boarding by bus - no justification for calling and pricing this as business class

Boarding was delayed for an unknown reason for more than an hour. While the airplane was at the gate, the boarding time was moved by 10-20 minutes every 15 minutes. No entertainment on the plane.

The flight itself was pleasant and on time. Crew was very good. However, breakfast food was barely acceptable. Unfortunately this satisfies the recent industry standards. I asked for a sandwich with ham (another choice was cheese), but received a sandwich with roast beef.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

The airport staff never announced that boarding has started. Both at iad or Islamabad or Istanbul.

Very bad experience with turkish airline tk 0001. Very uncomfortable seats and food ran out and crew was not helpful

The airline could improve its business class seats and privacy in line with its competitors.

To be prepared for being treated with disrespect by the ground crew.

Loved the food. No wheelchair was provided in Sofia even though wheelchair assistance was confirmed by Turkish Airlines

Seats too much and for the price we paid eve thought economy we still had to pay $169 to check a ba that’s ridiculous and also my daughter needed water so she can take her medicine we push the boton for the attendant to get us water they never came we push it 3 times no one came and ask what we needed . Am not happy with the service at all I will not fly with TK anymore

Boarding experience was a mess- both to and from Istanbul airport. No one knew anything. They asked everyone to line up according to their sit numbers- it was unbelievable. Business class had a separate line, but it was hard to find- I had to go through all that mess before finding it. Would not recommend

Excellent food and service on my international flight. Most notable is the food provided by Turkish even for coach passengers is very good.

They can my date of travel and let me standard in Istanbul for three days stop over and only pay for one day in a hotel with only one breakfast for three days.

the flight was cancelled and I was rebooked twice, once 26 hours later, then another 24 hours later. In total the flight was delayed for 40 hours. Never again will I use kayak or Turkish Airlines for my travel.

I don’t understand how they charge as much as they do for such a poor experience

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

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

This review is based on 2 things: 1. The lack of hygiene on the plane. 2. William - the head flight attendant. The lack of cleanliness on the plane upon arrival was appalling. Being given a sanitizing wipe upon boarding of the plane is shocking when you consider the cost of a business class flight. UA expects me to do their job and clean all the bread, food and debris left from previous guests. Does this sound normal to you. The seat, the food table and the sides were full of crumbs, chocolate and dirt. When I told the flight attendant they just gave me more wipes so I could clean it myself. Secondly, William the business cabin head flight attendant was so busy flirting with a couple in the front that his attention to the other guests was minimal. He continuously asked them if they were ok or if they needed anything and it didn’t matter if the rest of us needed anything. And if you are the lead attendant shouldn’t you be checking if the bathrooms in business class are clean and needing toilet paper. There were 2 bathrooms in business. Halfway through the flight the first bathroom was closed and the second bathroom was dirty and had no toilet paper one hour and a half before the flight landed. He needs additional training on prioritizing things. He should care less about flirting and more about his work

Booked seats (paid extra) online and found they didn’t exist on the flight. We were then separated from the rest of our party. Given seats in the very back of the plane. We will not fly Discover or Lufthansa again. We will not book flights or travel through Kayak again!

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

Airline food is airline food, but the plane was wonderful and the seating comfort outstanding. One of my best flights in quite a while.

Everything you need to know for your flight from Sofia to California

Information on your arrival and departure airports