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Cheap flights from Sofia to Los Angeles from $658

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sofia to Los Angeles departing on 6/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Sofia to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:25 pm - 4:22 pm
SOF
-
ONT
28h 57m
2 stops
British Airways Logo
11:59 pm - 8:30 pm
ONT
-
SOF
34h 31m
2 stops
$945British Airways
Wed, Apr 1 - Mon, Apr 13
United Airlines Logo
6:10 am - 6:02 pm
SOF
-
ONT
21h 52m
2 stops
United Airlines Logo
1:34 pm - 6:00 pm
ONT
-
SOF
18h 26m
2 stops
$947United Airlines
Tue, Mar 31 - Tue, Apr 14
British Airways Logo
9:25 pm - 4:22 pm
SOF
-
ONT
28h 57m
2 stops
British Airways Logo
1:31 pm - 8:10 pm
ONT
-
SOF
20h 39m
2 stops
$1,262British Airways
Wed, Apr 8 - Sat, Oct 3
Multiple Airlines Logo
9:35 am - 11:59 pm
SOF
-
ONT
24h 24m
2 stops
Multiple Airlines Logo
10:56 pm - 8:45 am
ONT
-
SOF
23h 49m
2 stops
$1,451Multiple Airlines
Sat, Apr 11 - Sat, Oct 3
British Airways Logo
5:25 pm - 6:42 pm
SOF
-
ONT
34h 17m
2 stops
British Airways Logo
11:58 pm - 8:10 pm
ONT
-
SOF
35h 12m
2 stops
$1,834British Airways
Mon, Mar 9 - Mon, Mar 16
British Airways Logo
5:25 pm - 6:42 pm
SOF
-
ONT
34h 17m
2 stops
British Airways Logo
11:58 pm - 8:30 pm
ONT
-
SOF
34h 32m
2 stops
$1,847British Airways
Mon, Mar 16 - Mon, Mar 30
British Airways Logo
5:25 pm - 6:42 pm
SOF
-
ONT
34h 17m
2 stops
British Airways Logo
11:58 pm - 8:30 pm
ONT
-
SOF
34h 32m
2 stops
$1,849British Airways
Mon, Mar 16 - Mon, Mar 30
British Airways Logo
5:25 pm - 6:42 pm
SOF
-
ONT
34h 17m
2 stops
British Airways Logo
11:58 pm - 8:30 pm
ONT
-
SOF
34h 32m
2 stops
$1,850British Airways
Mon, Mar 16 - Mon, Mar 30
United Airlines Logo
8:00 am - 10:26 pm
SOF
-
ONT
24h 26m
2 stops
United Airlines Logo
7:00 am - 11:40 am
ONT
-
SOF
18h 40m
2 stops
$3,394United Airlines
Tue, Apr 7 - Sat, Oct 3
Turkish Airlines Logo
2:05 pm - 10:09 pm
SOF
-
ONT
42h 04m
2 stops
Turkish Airlines Logo
11:25 pm - 8:15 pm
ONT
-
SOF
34h 50m
2 stops
$5,131Turkish Airlines
Fri, May 29 - Sat, Jun 6

British Airways flights from Sofia to Ontario

Our best British Airways deals on Sofia to Ontario flight tickets
British Airways
Apr 1
SOF9:25 pmSofia
28h 57m
2 stops
ONT4:22 pmOntario
Apr 13
ONT11:59 pmOntario
34h 31m
2 stops
SOF8:30 pmSofia
$945
British Airways
Apr 8
SOF9:25 pmSofia
28h 57m
2 stops
ONT4:22 pmOntario
Oct 3
ONT1:31 pmOntario
20h 39m
2 stops
SOF8:10 pmSofia
$1,262
British Airways
Mar 9
SOF5:25 pmSofia
34h 17m
2 stops
ONT6:42 pmOntario
Mar 16
ONT11:58 pmOntario
35h 12m
2 stops
SOF8:10 pmSofia
$1,834

United Airlines flights from Sofia to Ontario

Our best United Airlines deals on Sofia to Ontario flight tickets
United Airlines
Mar 31
SOF6:10 amSofia
21h 52m
2 stops
ONT6:02 pmOntario
Apr 14
ONT1:34 pmOntario
18h 26m
2 stops
SOF6:00 pmSofia
$947
United Airlines
Apr 7
SOF8:00 amSofia
24h 26m
2 stops
ONT10:26 pmOntario
Oct 3
ONT7:00 amOntario
18h 40m
2 stops
SOF11:40 amSofia
$3,394

momondo Fare Finder

 
Customize your flight search to find flights from Sofia to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 8, 2026.
Use the filters below to find and compare flights from Sofia to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SofiaOntario

SOF - ONT

SOFONT

Sofia

Wed 4/1

9:25 pm-4:22 pm

2 stops28h 57m

Ontario

Mon 4/13

11:59 pm-8:30 pm

2 stops34h 31m

$945

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 3/31

6:10 am-6:02 pm

2 stops21h 52m

Ontario

Tue 4/14

1:34 pm-6:00 pm

2 stops18h 26m

$947

SofiaOntario

SOF - ONT

SOFONT

Sofia

Wed 4/8

9:25 pm-4:22 pm

2 stops28h 57m

Ontario

Sat 10/3

1:31 pm-8:10 pm

2 stops20h 39m

$1,262

SofiaOntario

SOF - ONT

SOFONT

Sofia

Sat 4/11

9:35 am-11:59 pm

2 stops24h 24m

Ontario

Sat 10/3

10:56 pm-8:45 am

2 stops23h 49m

$1,451

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 3/9

5:25 pm-6:42 pm

2 stops34h 17m

Ontario

Mon 3/16

11:58 pm-8:10 pm

2 stops35h 12m

$1,834

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 3/16

5:25 pm-6:42 pm

2 stops34h 17m

Ontario

Mon 3/30

11:58 pm-8:30 pm

2 stops34h 32m

$1,847

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 3/16

5:25 pm-6:42 pm

2 stops34h 17m

Ontario

Mon 3/30

11:58 pm-8:30 pm

2 stops34h 32m

$1,849

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 3/16

5:25 pm-6:42 pm

2 stops34h 17m

Ontario

Mon 3/30

11:58 pm-8:30 pm

2 stops34h 32m

$1,850

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 4/7

8:00 am-10:26 pm

2 stops24h 26m

Ontario

Sat 10/3

7:00 am-11:40 am

2 stops18h 40m

$3,394

SofiaOntario

SOF - ONT

SOFONT

Sofia

Fri 5/29

2:05 pm-10:09 pm

2 stops42h 04m

Ontario

Sat 6/6

11:25 pm-8:15 pm

2 stops34h 50m

$5,131

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Sofia to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Sofia to Ontario?

British Airways is the most popular carrier operating from Sofia to Ontario

What airlines fly to Ontario?

Turkish Airlines, Lufthansa and United Airlines are the top three most popular airlines that fly to Ontario from Sofia according to our data. Turkish Airlines is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Sofia to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Sofia to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sofia to Ontario (SOF to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Ontario

Fastest flight time

21h 42m

Direct flights

None
The fastest flight from Sofia to Ontario takes 21h 42m
There are no direct flights from Sofia to Ontario. There are no popular flight routes from Sofia to Ontario.
Search flight deals

  • How far is Sofia to Ontario by plane?

    Ontario is 6583.2 mi away from Sofia. In terms of flight time, this usually takes a little over 21h 42m.

  • When did momondo last update prices for flights from Sofia Airport to Ontario Airport?

    Prices for flights from Sofia Airport to Ontario Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Sofia Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Sofia to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Sofia.

Can I find flights from Sofia to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Sofia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sofia to Ontario?

momondo provides multiple filters to help you find the best flight to Ontario from Sofia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Sofia to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Sofia to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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