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$584+ Cheap flights from Bulgaria to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ONT
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Bulgaria to Ontario

Cheapest flights from Bulgaria to Ontario
Explore the most affordable flight options available from Bulgaria to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This British Airways deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:00 pmSOF - ONT
2 stops35h 14mBritish Airways
Sat 5/302:57 pmONT - SOF
2 stops19h 23mBritish Airways
Deal found 12/3$1,232
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amSOF - ONT
2 stops26h 25mUnited Airlines
Sat 5/307:00 amONT - SOF
2 stops19h 05mUnited Airlines
Deal found 12/3$1,335
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amSOF - ONT
2 stops24h 57mUnited Airlines
Wed 1/76:00 amONT - SOF
2 stops21h 50mUnited Airlines
Deal found 12/3$1,397
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:05 amSOF - ONT
2 stops21h 38mUnited Airlines
Sat 5/307:00 amONT - SOF
2 stops19h 05mUnited Airlines
Deal found 12/3$1,402
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:10 amSOF - ONT
2 stops21h 33mUnited Airlines
Sat 5/307:00 amONT - SOF
2 stops19h 05mUnited Airlines
Deal found 12/3$1,411
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amSOF - ONT
2 stops40h 18mUnited Airlines
Tue 3/105:15 amONT - SOF
2 stops28h 05mUnited Airlines
Deal found 12/3$2,135
This Qatar Airways deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:30 pmSOF - ONT
2 stops35h 22mQatar Airways
Sat 5/3011:51 amONT - SOF
2 stops41h 44mQatar Airways
Deal found 12/3$2,530
This Qatar Airways deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:30 pmSOF - ONT
2 stops35h 22mQatar Airways
Tue 6/1612:00 pmONT - SOF
2 stops38h 30mQatar Airways
Deal found 12/3$2,556
This British Airways deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:00 pmSOF - ONT
2 stops31h 16mBritish Airways
Sat 5/302:57 pmONT - SOF
2 stops19h 23mBritish Airways
Deal found 12/3$2,693

Find flight deals from Bulgaria to Ontario

Keep the following information in mind while searching for Bulgaria to Ontario flight deals. Data was last updated December 4, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$847
(United Airlines)

One-way from

$821
(British Airways)

Popular in

January

Cheapest in

March

Average price

$923
Provider with most accurate pricing for Sofia-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Los Angeles flights.
Search Deals
From Bulgaria to Ontario
Search Deals
One-way flight from Bulgaria to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bulgaria 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, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from Bulgaria to Ontario that are best for you.

Fly from

Bulgaria

Fly to

Ontario

Route

Depart

Return

Price

SofiaOntario

SOF - ONT

SOFONT

Sofia

Fri 2/27

6:10 am-8:07 pm

2 stops23h 57m

Ontario

Tue 3/3

1:45 pm-6:20 pm

2 stops18h 35m

$847

SofiaOntario

SOF - ONT

SOFONT

Sofia

Wed 2/4

6:10 am-8:58 pm

2 stops24h 48m

Ontario

Tue 3/31

1:34 pm-6:40 pm

2 stops19h 06m

$847

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 2/2

2:20 pm-10:53 pm

2 stops18h 33m

Ontario

Tue 3/31

1:34 pm-6:40 pm

2 stops19h 06m

$847

SofiaOntario

SOF - ONT

SOFONT

Sofia

Thu 4/30

12:50 pm-10:26 pm

2 stops19h 36m

Ontario

Sat 5/9

1:33 pm-5:10 pm

2 stops17h 37m

$1,115

SofiaOntario

SOF - ONT

SOFONT

Sofia

Wed 12/24

9:00 pm-10:14 pm

2 stops35h 14m

Ontario

Sat 5/30

2:57 pm-8:20 pm

2 stops19h 23m

$1,232

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 12/30

6:00 am-10:25 pm

2 stops26h 25m

Ontario

Sat 5/30

7:00 am-12:05 pm

2 stops19h 05m

$1,335

SofiaOntario

SOF - ONT

SOFONT

Sofia

Sun 12/28

6:05 am-5:43 pm

2 stops21h 38m

Ontario

Sat 5/30

7:00 am-12:05 pm

2 stops19h 05m

$1,402

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 12/29

6:10 am-5:43 pm

2 stops21h 33m

Ontario

Sat 5/30

7:00 am-12:05 pm

2 stops19h 05m

$1,411

SofiaOntario

SOF - ONT

SOFONT

Sofia

Wed 2/25

6:10 am-12:43 pm

2 stops40h 33m

Ontario

Wed 3/25

1:40 pm-10:45 pm

2 stops24h 05m

$1,902

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 1/6

6:00 am-9:59 pm

2 stops25h 59m

Ontario

Thu 1/8

6:39 pm-10:45 pm

2 stops18h 06m

$2,136

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 22 results
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Best time to book a flight from Bulgaria to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Bulgaria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bulgaria to Ontario

What is the cheapest month to book a flight from Bulgaria to Ontario?

Currently, July is the cheapest month in which you can book a flight from Bulgaria to Ontario (average of $568). Flying from Bulgaria to Ontario in April is currently the most expensive (average of $829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Bulgaria to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Bulgaria?

    For a flight from Bulgaria to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Bulgaria to Ontario?

    There are many flights that can get you from Bulgaria to Ontario in 18h 33m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 6585 mi.

  • Can I find deals for flights from Bulgaria to Ontario that include hotel bookings?

    Yes. In addition to deals on Bulgaria to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bulgaria to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bulgaria to Ontario.

  • Can I find deals for business class flights from Bulgaria to Ontario?

    Yes. Cheapflights offers flight deals from Bulgaria to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bulgaria to Ontario?

    Currently, July is the cheapest month in which you can book a flight from Bulgaria to Ontario (average of $568). Flying from Bulgaria to Ontario in April is currently the most expensive (average of $829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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