How far in advance should I book a flight from Bulgaria to Ontario?

Travelers have found it’s best to book a flight 40 days in advance to save up to 16% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 40 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Bulgaria to Ontario 1-2 weeks in advance for as low as $832, or $1,203 for flights within the next 24 hours.

What is the cheapest month to fly from Bulgaria to Ontario?

September is one of the best times of the year to fly to Ontario from Bulgaria. Prices for September average $871 per person but you can even find prices for as low as $668. The most expensive prices can be found in the month of August. Opting for a September flight can save you 16% on your journey compared to booking in August

What is the cheapest time of day to fly from BG to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bulgaria to Ontario as you normally would.

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.

$1,237+ Flights from Bulgaria to Ontario

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Cheap flight deals from Bulgaria to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$864 (United Airlines)
One-way from	$842 (United Airlines)
Popular in	August
Cheapest in	September
Average price	$858

Provider with most accurate pricing for Sofia-Los Angeles flight deals.

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Provider most trusted by Cheapflights users for Sofia-Los Angeles flights.

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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. 2% potential increase in price ($22 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 2, 2025.

Wed 6/1112:45 pmSOF - ONT

2 stops19h 41mUnited Airlines

Tue 7/226:00 amONT - SOF

2 stops21h 20mUnited Airlines

Deal found 4/1

$864

Tue 6/104:05 pmSOF - ONT

2 stops39h 17mAir Serbia

Mon 7/2111:45 pmONT - SOF

2 stops29h 50mAir Serbia

Deal found 4/1

$1,026

Thu 4/106:15 amSOF - ONT

2 stops22h 14mMultiple Airlines

Sat 4/2612:50 pmONT - SOF

2 stops21h 30mMultiple Airlines

Deal found 4/1

$1,287

Thu 4/101:30 pmSOF - ONT

2 stops34h 19mQatar Airways

Sat 4/262:44 pmONT - SOF

2 stops35h 46mQatar Airways

Deal found 4/1

$2,033

Best flights from Bulgaria to Ontario
Discover carefully curated flight deals from Bulgaria to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2025.

Wed 6/1112:45 pmSOF - ONT

2 stops19h 41mUnited Airlines

Tue 7/226:00 amONT - SOF

2 stops21h 20mUnited Airlines

Deal found 4/1

$864

Tue 6/104:05 pmSOF - ONT

2 stops39h 17mAir Serbia

Mon 7/2111:45 pmONT - SOF

2 stops29h 50mAir Serbia

Deal found 4/1

$1,026

Last-minute flights from Bulgaria to Ontario
Discover last-minute flight deals from Bulgaria to Ontario. Data last updated April 2, 2025 and is based on user searches.

Thu 4/106:15 amSOF - ONT

2 stops22h 14mMultiple Airlines

Sat 4/2612:50 pmONT - SOF

2 stops21h 30mMultiple Airlines

Deal found 4/1

$1,287

Thu 4/101:30 pmSOF - ONT

2 stops34h 19mQatar Airways

Sat 4/262:44 pmONT - SOF

2 stops35h 46mQatar Airways

Deal found 4/1

$2,033

One-way flights from Bulgaria to Ontario
Search for one-way flight options from Bulgaria to Ontario. Find affordable one-way fares based on user searches. Data last updated April 2, 2025.

Sat 8/166:00 amSOF - ONT

3 stops26h 11mUnited Airlines

Deal found 4/2

$842

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bulgaria to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SofiaOntario

SOF - ONT

SOFONT

Sofia

Wed 6/11

12:45 pm-10:26 pm

2 stops19h 41m

Ontario

Tue 7/22

6:00 am-1:20 pm

2 stops21h 20m

$864

SofiaOntario

SOF - ONT

SOFONT

Sofia

Tue 6/10

4:05 pm-9:22 pm

2 stops39h 17m

Ontario

Sun 7/20

11:45 pm-3:35 pm

2 stops29h 50m

$1,026

SofiaOntario

SOF - ONT

SOFONT

Sofia

Sat 8/16

6:00 am-10:11 pm

3 stops26h 11m

$842

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

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.

Rainfall in Ontario by month

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

United Airlines

7.4

Good

8,615 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines

7.4

Good

8,615 reviews

United Airlines

7.4

Good

8,615 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Air Serbia

6.3

Okay

196 reviews

United Airlines

7.4

Good

8,615 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

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.

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$842+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Bulgaria to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 April 2, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Bulgaria to Ontario

Cheapest flights from Bulgaria to OntarioExplore 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 April 2, 2025.

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 April 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bulgaria to Ontario that are best for you.

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.

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?

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

Reviews of airlines servicing Ontario

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?

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

How can I find direct flights from Bulgaria to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bulgaria to Ontario

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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 April 2, 2025.