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Ontario

$687+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ONT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Bulgaria to Ontario

Keep the following information in mind while searching for Bulgaria to Ontario flight deals. Data was last updated August 14, 2025.

Round-trip from

$823
(United Airlines)

One-way from

$687
(Air Serbia)

Popular in

May

Cheapest in

February

Average price

$903
From Bulgaria to Ontario
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One-way flight from Bulgaria to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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 10/161:55 pmSOF - ONT
2 stops18h 57mUnited Airlines
Fri 10/247:02 amONT - SOF
2 stops18h 13mUnited Airlines
Deal found 8/12$823
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 11/146:15 amSOF - ONT
2 stops26h 16mUnited Airlines
Tue 11/185:05 amONT - SOF
2 stops27h 15mUnited Airlines
Deal found 8/12$830
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 8/306:15 amSOF - ONT
2 stops25h 10mUnited Airlines
Wed 9/35:10 amONT - SOF
2 stops31h 50mUnited Airlines
Deal found 8/14$859
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/278:00 amSOF - ONT
2 stops20h 06mUnited Airlines
Sat 10/41:15 pmONT - SOF
2 stops23h 45mUnited Airlines
Deal found 8/13$862
This Qatar Airways deal was found by Cheapflights users on 8/12. 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 10/21:30 pmSOF - ONT
2 stops34h 24mQatar Airways
Wed 3/1811:30 amONT - SOF
2 stops38h 55mQatar Airways
Deal found 8/12$1,621
This Qatar Airways deal was found by Cheapflights users on 8/13. 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 9/181:30 pmSOF - ONT
2 stops34h 24mQatar Airways
Wed 10/12:54 pmONT - SOF
2 stops35h 36mQatar Airways
Deal found 8/13$1,746

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 August 14, 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 10/17

1:50 pm-10:52 pm

2 stops19h 02m

Ontario

Fri 10/24

7:02 am-11:15 am

2 stops18h 13m

$823

SofiaOntario

SOF - ONT

SOFONT

Sofia

Thu 10/16

1:55 pm-10:52 pm

2 stops18h 57m

Ontario

Fri 10/24

7:02 am-11:15 am

2 stops18h 13m

$823

SofiaOntario

SOF - ONT

SOFONT

Sofia

Fri 11/14

6:15 am-10:31 pm

2 stops26h 16m

Ontario

Tue 11/18

5:05 am-6:20 pm

2 stops27h 15m

$830

SofiaOntario

SOF - ONT

SOFONT

Sofia

Sat 8/30

6:15 am-9:25 pm

2 stops25h 10m

Ontario

Wed 9/3

5:10 am-11:00 pm

2 stops31h 50m

$859

SofiaOntario

SOF - ONT

SOFONT

Sofia

Sat 9/27

8:00 am-6:06 pm

2 stops20h 06m

Ontario

Sat 10/4

1:15 pm-11:00 pm

2 stops23h 45m

$862

SofiaOntario

SOF - ONT

SOFONT

Sofia

Thu 10/2

1:30 pm-1:54 pm

2 stops34h 24m

Ontario

Wed 3/18

11:30 am-11:25 am

2 stops38h 55m

$1,621

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 9/2

4:05 pm-9:29 pm

2 stops39h 24m

$687

SofiaOntario

SOF - ONT

SOFONT

Sofia

Mon 9/15

4:05 pm-9:29 pm

2 stops39h 24m

$687

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 9/9

4:05 pm-9:29 pm

2 stops39h 24m

$687

SofiaOntario

SOF - ONT

SOFONT

Sofia

Sun 9/14

4:05 pm-9:29 pm

2 stops39h 24m

$810

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 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, August is the cheapest month in which you can book a flight from Bulgaria to Ontario (average of $246). Flying from Bulgaria to Ontario in March is currently the most expensive (average of $328). 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.

  • 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, August is the cheapest month in which you can book a flight from Bulgaria to Ontario (average of $246). Flying from Bulgaria to Ontario in March is currently the most expensive (average of $328). 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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