SOF - SFO

$560 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 5/24. 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
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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$905
Typical prices: $1,025-$843
Multiple Airlines
Sun 9/13Wed 9/30
SOF - SFO • 2 stops
Cheapest one-way
$546
Multiple Airlines
Sun 5/24
SOF - SFO • 3 stops
Top airlines
Cheapest • from $975 (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
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Insights
Top layover airports
Cheapest • Avg $948 (round-trip)
Shortest trip • 15h 40m (one-way)
Insights
Insights
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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
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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

Sun, Sep 13 - Wed, Sep 30
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
$905Multiple Airlines
Mon, Jun 15 - Mon, Jul 20
Multiple Airlines Logo
4:40 pm - 1:50 pm
SOF
-
SFO
31h 10m
1 stop
Multiple Airlines Logo
4:30 pm - 11:10 am
SFO
-
SOF
32h 40m
2 stops
$915Multiple Airlines
Wed, Jun 17 - Mon, Jul 20
Multiple Airlines Logo
4:40 pm - 1:50 pm
SOF
-
SFO
31h 10m
1 stop
Multiple Airlines Logo
4:30 pm - 11:10 am
SFO
-
SOF
32h 40m
2 stops
$949Multiple Airlines
Mon, Jun 15 - Wed, Jul 15
Multiple Airlines Logo
4:40 pm - 1:50 pm
SOF
-
SFO
31h 10m
1 stop
Multiple Airlines Logo
9:05 pm - 4:30 pm
SFO
-
SOF
33h 25m
2 stops
$955Multiple Airlines
Thu, Jun 4 - Sat, Jun 20
Turkish Airlines Logo
3:50 pm - 10:50 am
SOF
-
SFO
29h 00m
1 stop
Turkish Airlines Logo
1:05 pm - 8:15 pm
SFO
-
SOF
21h 10m
1 stop
$975Turkish Airlines
Wed, Jun 3 - Sun, Jun 28
Turkish Airlines Logo
3:50 pm - 4:40 pm
SOF
-
SFO
34h 50m
1 stop
Turkish Airlines Logo
12:55 pm - 3:00 pm
SFO
-
SOF
16h 05m
1 stop
$976Turkish Airlines
Mon, Jun 15 - Tue, Jul 14
Multiple Airlines Logo
4:40 pm - 1:50 pm
SOF
-
SFO
31h 10m
1 stop
Multiple Airlines Logo
7:35 pm - 4:20 pm
SFO
-
SOF
34h 45m
2 stops
$978Multiple Airlines
Wed, Jun 17 - Wed, Jul 15
Multiple Airlines Logo
4:40 pm - 1:50 pm
SOF
-
SFO
31h 10m
1 stop
Multiple Airlines Logo
9:05 pm - 4:30 pm
SFO
-
SOF
33h 25m
2 stops
$989Multiple Airlines
Sun, Jun 7 - Sat, Jun 20
Turkish Airlines Logo
3:50 pm - 4:40 pm
SOF
-
SFO
34h 50m
1 stop
Turkish Airlines Logo
1:05 pm - 8:45 am
SFO
-
SOF
33h 40m
1 stop
$992Turkish Airlines
Tue, Jun 16 - Sat, Jul 18
Multiple Airlines Logo
11:25 pm - 2:35 pm
SOF
-
SFO
25h 10m
2 stops
Multiple Airlines Logo
8:30 pm - 12:40 am
SFO
-
SOF
18h 10m
1 stop
$993Multiple 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 14 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$546
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 $546 for a one-way ticket and $905 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 $930 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 $932 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 4370 reviews
7.8Crew
7.3Comfort
7.5Entertainment
7.5Food
7.3Boarding
Airline reviews

The crew was amazing and the food was really good too

8.0 ExcellentAnonymous, May 2026
IST - BOS
Read more Turkish Airlines reviews

The crew was amazing and the food was really good too

Some of the best service I’ve ever seen on an international flight! The staff were super friendly and accommodating. The food was excellent with lots of choices and attention to detail. The seats are kind of old and narrow, but I have wide shoulders. The only area for improvement was making the cabin a little cooler.

It was fantastic. I really enjoyed it. It’s comfortable the flight attendant. Respect you anything you ask for they gave you except the water.

We were experiencing delayed for 4 hours and of course they took us to Turkish airlines lounge but we could not rested up since there is no bedroom. It was tiring and long day for us🙏 Especially we didn’t fly until 5:45am morning for Miami🙏😢

On Turkish it is all about the food and the service. I am overwhelmed with the quality and variety of the dining service offered on business class. I prefer the updated A350 to the older B777 cabin layout, but both are comfortable. Flights left and arrived on time with updates from the captain. I will definitely fly with them again.

Excellent service. Friendly and attentive flight attendants, can lay back in business class and be pretty comfortable, and delicious food. Flight on time departing and arriving.

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

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Outstanding service, great food, friendly & efficient crew, safe & comfortable flight

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

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..

Perfect airline, super friendly, great service, tasty food. Would fly again.

The flight attendants were wonderful - one man put my carry on in the bin for me. Very attentive service. Loved the blanket and pillow waiting for me in economy. Food was excellent which is a surprise given the reputation of any airline food. Wine was fine with the meals. Delighted with the new movies - flight went by very quickly. I would definitely fly Lufthansa again.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

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

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