How long is the flight from Romania to Ontario?

For as low as $837, American Airlines can have you in Ontario from Romania in 23h 57m. The distance from Romania to Ontario is about 6541 mi.

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.

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).

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

Travelers have found it’s best to book a flight 39 days in advance to save up to 55% 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 39 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 Romania to Ontario 1-2 weeks in advance for as low as $923, or $938 for flights within the next 24 hours.

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

The best pricing can be found in the month of March. Prices to Ontario from Romania average $870. You can even find prices in March for less than $870, as users have found deals to Ontario from as low as $602. The month of July appears to be one of the more expensive times to travel to Ontario from Romania. Flying in the targeted month can save you up to 14%.

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

When flying from Romania to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

For a flight from Romania 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 Romania to Ontario that include hotel bookings?

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

How can I find direct flights from Romania to Ontario?

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

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

Yes. Cheapflights offers flight deals from Romania 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.

$821+ Flights from Romania to Ontario

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Cheap flight deals from Romania to Ontario

Round-trip from	$837 (American Airlines)
One-way from	$821 (American Airlines)
Popular in	July
Cheapest in	March
Average price	$985

From Romania to Ontario

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One-way flight from Romania to Ontario

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Highest demand for flights based on searches. 7% potential increase in price ($66 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($12 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 Romania to Ontario

Cheapest flights from Romania to Ontario
Explore the most affordable flight options available from Romania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2025.

Sat 10/46:05 pmOTP - ONT

2 stops39h 37mKLM

Mon 10/137:35 amONT - OTP

2 stops21h 50mKLM

Deal found 8/23

$882

Tue 9/91:45 pmOTP - ONT

2 stops53h 12mDelta

Sat 9/131:15 pmONT - OTP

2 stops60h 55mDelta

Deal found 8/24

$884

Wed 10/156:00 amOTP - ONT

2 stops21h 40mUnited Airlines

Fri 10/311:29 pmONT - OTP

2 stops20h 06mUnited Airlines

Deal found 8/24

$937

Wed 10/156:00 amOTP - ONT

2 stops21h 40mUnited Airlines

Sun 11/25:00 amONT - OTP

2 stops22h 05mUnited Airlines

Deal found 8/24

$968

Fri 10/36:00 amOTP - ONT

2 stops26h 52mUnited Airlines

Mon 10/139:36 amONT - OTP

2 stops21h 14mUnited Airlines

Deal found 8/24

$1,074

Tue 9/96:00 amOTP - ONT

2 stops24h 43mUnited Airlines

Sat 9/137:00 amONT - OTP

3 stops30h 30mUnited Airlines

Deal found 8/24

$1,302

Sat 9/278:25 amOTP - ONT

2 stops20h 29mMultiple Airlines

Fri 10/1010:57 amONT - OTP

2 stops22h 08mMultiple Airlines

Deal found 8/24

$1,306

Wed 10/158:25 amOTP - ONT

2 stops20h 38mBritish Airways

Sat 11/112:47 pmONT - OTP

2 stops25h 58mBritish Airways

Deal found 8/24

$1,312

Sat 9/278:25 amOTP - ONT

2 stops20h 29mBritish Airways

Fri 10/102:51 pmONT - OTP

2 stops18h 14mBritish Airways

Deal found 8/23

$1,314

Fri 10/38:25 amOTP - ONT

2 stops20h 29mBritish Airways

Mon 10/1312:48 pmONT - OTP

2 stops18h 37mBritish Airways

Deal found 8/23

$1,359

Best flights from Romania to Ontario
Discover carefully curated flight deals from Romania to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2025.

Wed 1/148:05 amOTP - ONT

2 stops23h 57mAmerican Airlines

Tue 1/203:00 pmONT - OTP

2 stops21h 55mAmerican Airlines

Deal found 8/23

$837

Fri 2/131:55 pmOTP - ONT

2 stops42h 57mDelta

Tue 2/176:00 amONT - OTP

2 stops30h 50mDelta

Deal found 8/23

$869

Thu 1/158:00 amOTP - ONT

2 stops24h 02mAmerican Airlines

Thu 1/228:43 amONT - OTP

2 stops21h 02mAmerican Airlines

Deal found 8/23

$837

Wed 1/148:05 amOTP - ONT

2 stops23h 57mAmerican Airlines

Wed 1/2110:57 amONT - OTP

2 stops26h 33mAmerican Airlines

Deal found 8/23

$837

Wed 1/148:05 amOTP - ONT

2 stops23h 57mAmerican Airlines

Thu 1/225:03 pmONT - OTP

2 stops20h 42mAmerican Airlines

Deal found 8/23

$837

Thu 1/158:00 amOTP - ONT

2 stops24h 02mAmerican Airlines

Tue 1/2010:57 amONT - OTP

2 stops25h 58mAmerican Airlines

Deal found 8/23

$837

Tue 1/138:00 amOTP - ONT

2 stops24h 02mAmerican Airlines

Wed 1/2110:57 amONT - OTP

2 stops26h 33mAmerican Airlines

Deal found 8/23

$837

Tue 1/138:00 amOTP - ONT

2 stops24h 02mAmerican Airlines

Tue 1/208:43 amONT - OTP

2 stops28h 12mAmerican Airlines

Deal found 8/23

$837

Tue 1/138:00 amOTP - ONT

2 stops24h 02mAmerican Airlines

Thu 1/223:00 pmONT - OTP

2 stops22h 45mAmerican Airlines

Deal found 8/23

$837

Thu 1/158:00 amOTP - ONT

2 stops24h 02mAmerican Airlines

Wed 1/2110:28 amONT - OTP

2 stops27h 02mAmerican Airlines

Deal found 8/23

$837

Last-minute flights from Romania to Ontario
Discover last-minute flight deals from Romania to Ontario. Data last updated August 25, 2025 and is based on user searches.

Mon 8/254:05 pmOTP - ONT

2 stops39h 54mAir Serbia

Mon 9/111:59 pmONT - OTP

2 stops30h 26mAir Serbia

Deal found 8/24

$1,763

Mon 9/15:10 pmOTP - ONT

2 stops30h 29mQatar Airways

Tue 9/162:54 pmONT - OTP

2 stops30h 51mQatar Airways

Deal found 8/24

$1,968

Mon 9/18:25 amOTP - ONT

2 stops25h 29mBritish Airways

Tue 9/302:54 pmONT - OTP

2 stops24h 31mBritish Airways

Deal found 8/23

$2,728

Tue 9/91:45 pmOTP - ONT

2 stops53h 12mDelta

Sat 9/131:15 pmONT - OTP

2 stops60h 55mDelta

Deal found 8/24

$884

Tue 9/96:00 amOTP - ONT

2 stops24h 43mUnited Airlines

Sat 9/137:00 amONT - OTP

3 stops30h 30mUnited Airlines

Deal found 8/24

$1,302

Thu 9/185:10 pmOTP - ONT

2 stops30h 44mQatar Airways

Thu 9/252:30 pmONT - OTP

2 stops31h 15mQatar Airways

Deal found 8/24

$1,903

Sat 9/278:25 amOTP - ONT

2 stops20h 29mMultiple Airlines

Fri 10/1010:57 amONT - OTP

2 stops22h 08mMultiple Airlines

Deal found 8/24

$1,306

Sat 9/278:25 amOTP - ONT

2 stops20h 29mBritish Airways

Fri 10/102:51 pmONT - OTP

2 stops18h 14mBritish Airways

Deal found 8/23

$1,314

Sat 9/275:10 pmOTP - ONT

2 stops30h 09mQatar Airways

Fri 10/102:51 pmONT - OTP

2 stops37h 24mQatar Airways

Deal found 8/24

$2,320

One-way flights from Romania to Ontario
Search for one-way flight options from Romania to Ontario. Find affordable one-way fares based on user searches. Data last updated August 25, 2025.

Sat 2/218:05 amOTP - ONT

2 stops23h 52mAmerican Airlines

Deal found 8/23

$821

Sun 8/316:05 amOTP - ONT

2 stops24h 38mUnited Airlines

Deal found 8/23

$918

Thu 9/46:05 amOTP - ONT

2 stops26h 25mUnited Airlines

Deal found 8/24

$924

Tue 9/26:00 amOTP - ONT

2 stops21h 37mUnited Airlines

Deal found 8/24

$929

Mon 9/18:25 amOTP - ONT

2 stops25h 42mAmerican Airlines

Deal found 8/24

$1,150

Fly from

Fly to

Route

Depart

Return

Price

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 1/14

8:05 am-10:02 pm

2 stops23h 57m

Ontario

Tue 1/20

3:00 pm-10:55 pm

2 stops21h 55m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 1/15

8:00 am-10:02 pm

2 stops24h 02m

Ontario

Thu 1/22

8:43 am-3:45 pm

2 stops21h 02m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 1/14

8:05 am-10:02 pm

2 stops23h 57m

Ontario

Wed 1/21

10:57 am-11:30 pm

2 stops26h 33m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 1/14

8:05 am-10:02 pm

2 stops23h 57m

Ontario

Thu 1/22

5:03 pm-11:45 pm

2 stops20h 42m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 1/15

8:00 am-10:02 pm

2 stops24h 02m

Ontario

Tue 1/20

10:57 am-10:55 pm

2 stops25h 58m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Tue 1/13

8:00 am-10:02 pm

2 stops24h 02m

Ontario

Wed 1/21

10:57 am-11:30 pm

2 stops26h 33m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Tue 1/13

8:00 am-10:02 pm

2 stops24h 02m

Ontario

Tue 1/20

8:43 am-10:55 pm

2 stops28h 12m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Tue 1/13

8:00 am-10:02 pm

2 stops24h 02m

Ontario

Thu 1/22

3:00 pm-11:45 pm

2 stops22h 45m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 1/15

8:00 am-10:02 pm

2 stops24h 02m

Ontario

Wed 1/21

10:28 am-11:30 pm

2 stops27h 02m

$837

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 2/13

1:55 pm-10:52 pm

2 stops42h 57m

Ontario

Tue 2/17

6:00 am-10:50 pm

2 stops30h 50m

$869

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/23

Showing 1-10 of 21 results

Best time to book a flight from Romania to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Romania 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 Romania to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Romania to Ontario (average of $246). Flying from Romania 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

What airport do you fly into for flights to Ontario from Romania?
For a flight from Romania 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 Romania to Ontario?
For as low as $837, American Airlines can have you in Ontario from Romania in 23h 57m. The distance from Romania to Ontario is about 6541 mi.
Can I find deals for flights from Romania to Ontario that include hotel bookings?
Yes. In addition to deals on Romania to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Romania to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Romania to Ontario.
Can I find deals for business class flights from Romania to Ontario?
Yes. Cheapflights offers flight deals from Romania 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 Romania to Ontario?
Currently, August is the cheapest month in which you can book a flight from Romania to Ontario (average of $246). Flying from Romania 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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$821+ Cheap flights from Romania 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Romania 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 Romania to Ontario

Keep the following information in mind while searching for Romania to Ontario flight deals. Data was last updated August 25, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Romania to Ontario

Cheapest flights from Romania to OntarioExplore the most affordable flight options available from Romania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2025.

Explore the most affordable flight options available from Romania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Romania to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Romania with our price prediction graph.

Cheapflights Insights

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

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

Related info for your journey

Find useful and relevant information for your journey from Romania 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 Romania?

How long is the flight from Romania to Ontario?

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

How can I find direct flights from Romania to Ontario?

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

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

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Cheapest flights from Romania to Ontario
Explore the most affordable flight options available from Romania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2025.