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$219+ Cheap flights from Ontario (ONT) to Romania

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OTP
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Ontario to Romania

Keep the following information in mind while searching for Ontario to Romania flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$498
(United Airlines)

One-way from

$219
(Iberia)

Popular in

June

Cheapest in

October

Average price

$596
Provider with most accurate pricing for Los Angeles-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Bucharest (BUH) flights.
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From Ontario to Romania
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One-way flight from Ontario to Romania
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Highest demand for flights based on searches. 9% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Ontario to Romania

Cheapest flights from Ontario to Romania
Explore the most affordable flight options available from Ontario to Romania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:59 am
ONT
-
OTP
2 stops28h 21m
British Airways
Tue 4/288:15 am
OTP
-
ONT
2 stops22h 39m
British Airways
Deal found 1/13$480
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:47 pm
ONT
-
OTP
2 stops36h 58m
British Airways
Mon 11/234:00 pm
OTP
-
ONT
2 stops40h 23m
British Airways
Deal found 1/14$493
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Mon 2/166:10 am
ONT
-
CLJ
2 stops21h 30m
United Airlines
Thu 3/56:00 am
CLJ
-
ONT
2 stops26h 18m
United Airlines
Deal found 1/12$498
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Mon 3/21:45 pm
ONT
-
OTP
2 stops18h 50m
United Airlines
Wed 3/186:05 am
OTP
-
ONT
2 stops25h 13m
United Airlines
Deal found 1/13$502
This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/254:45 pm
ONT
-
OTP
2 stops36h 45m
British Airways
Thu 2/59:00 pm
OTP
-
ONT
2 stops35h 13m
British Airways
Deal found 1/14$505
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/256:00 am
ONT
-
OTP
2 stops30h 50m
Delta
Wed 2/46:00 am
OTP
-
ONT
2 stops26h 44m
Delta
Deal found 1/14$506
This British Airways deal was found by Cheapflights users on 1/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/14:45 pm
ONT
-
OTP
2 stops21h 00m
British Airways
Fri 2/208:00 am
OTP
-
ONT
2 stops25h 59m
British Airways
Deal found 1/14$510
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/241:11 pm
ONT
-
OTP
2 stops47h 39m
Delta
Thu 2/56:00 am
OTP
-
ONT
2 stops26h 44m
Delta
Deal found 1/14$511
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/287:30 am
ONT
-
OTP
2 stops23h 40m
Delta
Mon 2/21:55 pm
OTP
-
ONT
2 stops42h 49m
Delta
Deal found 1/14$512
This Flysmarter deal was found by Cheapflights users on 1/15. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/12:39 pm
ONT
-
OTP
2 stops23h 06m
British Airways
Sun 3/87:35 am
OTP
-
ONT
2 stops23h 32m
British Airways
Deal found 1/15$513
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Wed 4/151:34 pm
ONT
-
OTP
2 stops16h 46m
United Airlines
Wed 4/296:05 am
OTP
-
ONT
2 stops21h 42m
United Airlines
Deal found 1/14$514
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/43:09 pm
ONT
-
OTP
2 stops18h 56m
British Airways
Wed 2/188:05 am
OTP
-
ONT
2 stops21h 40m
British Airways
Deal found 1/13$518

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Romania 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 January 15, 2026.
Use the filters below to find and compare flights from Ontario to Romania that are best for you.

Fly from

Ontario

Fly to

Romania

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/14

10:59 am-1:20 am

2 stops28h 21m

Bucharest Otopeni Intl

Tue 4/28

8:15 am-8:54 pm

2 stops22h 39m

$480

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Mon 2/16

6:10 am-1:40 pm

2 stops21h 30m

Cluj Napoca

Wed 3/4

6:00 am-10:57 pm

2 stops26h 57m

$498

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Sun 2/15

6:37 pm-1:40 pm

2 stops33h 03m

Cluj Napoca

Fri 3/6

6:00 am-5:41 pm

2 stops21h 41m

$498

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Sun 2/15

6:37 pm-1:40 pm

2 stops33h 03m

Cluj Napoca

Wed 3/4

2:25 pm-10:57 pm

2 stops18h 32m

$498

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Mon 2/16

6:10 am-1:40 pm

2 stops21h 30m

Cluj Napoca

Thu 3/5

6:00 am-10:18 pm

2 stops26h 18m

$498

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Sun 2/15

6:37 pm-1:40 pm

2 stops33h 03m

Cluj Napoca

Thu 3/5

6:00 am-5:41 pm

2 stops21h 41m

$498

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Mon 2/16

6:10 am-1:40 pm

2 stops21h 30m

Cluj Napoca

Fri 3/6

6:00 am-10:36 pm

2 stops26h 36m

$498

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/2

1:45 pm-6:35 pm

2 stops18h 50m

Bucharest Otopeni Intl

Wed 3/18

6:05 am-10:18 pm

2 stops25h 13m

$502

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/2

1:45 pm-6:35 pm

2 stops18h 50m

Bucharest Otopeni Intl

Thu 3/19

5:50 am-5:41 pm

2 stops20h 51m

$502

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/2

1:45 pm-6:35 pm

2 stops18h 50m

Bucharest Otopeni Intl

Tue 3/17

5:55 am-10:18 pm

2 stops25h 23m

$502

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 31 results
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Best time to book a flight from Ontario to Romania

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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Romania (average of $441). Flying from Ontario to Romania in June is currently the most expensive (average of $690). 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 Ontario to Romania. 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 from for flights from Ontario to Romania?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Romania from Ontario.

  • How long is the flight from Ontario to Romania?

    Departing from Ontario to Romania will take you 21h 30m. Ontario and Romania are separated by a distance of 6351 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Romania 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 Ontario to Romania?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Romania (average of $441). Flying from Ontario to Romania in June is currently the most expensive (average of $690). 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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Alternative routes for Ontario to Romania

See prices for flight routes from nearby airports that may be better suited for you.
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