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$290+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OTP
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap 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 March 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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 4/125:10 am
ONT
-
CLJ
2 stops26h 15m
United Airlines
Wed 4/221:50 pm
CLJ
-
ONT
2 stops18h 55m
United Airlines
Deal found 3/9$567
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/511:05 am
ONT
-
OTP
2 stops21h 30m
United Airlines
Wed 4/156:05 am
OTP
-
ONT
2 stops21h 42m
United Airlines
Deal found 3/6$572
This Iberia deal was found by Cheapflights users on 3/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:59 am
ONT
-
OTP
2 stops17h 36m
Multiple Airlines
Wed 4/228:15 am
OTP
-
ONT
2 stops24h 21m
Multiple Airlines
Deal found 3/10$574
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/65:10 am
ONT
-
OTP
2 stops27h 25m
United Airlines
Mon 4/1312:45 pm
OTP
-
ONT
2 stops39h 17m
United Airlines
Deal found 3/9$584
This Air France deal was found by Cheapflights users on 3/9. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:50 am
ONT
-
OTP
2 stops20h 00m
Multiple Airlines
Wed 5/208:35 am
OTP
-
ONT
2 stops23h 59m
Multiple Airlines
Deal found 3/9$599
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/111:40 pm
ONT
-
OTP
2 stops25h 30m
United Airlines
Tue 5/191:50 pm
OTP
-
ONT
2 stops29h 51m
United Airlines
Deal found 3/8$603
This oojo deal was found by Cheapflights users on 3/10. 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 12/12:59 pm
ONT
-
OTP
2 stops21h 56m
British Airways
Wed 12/98:05 am
OTP
-
ONT
2 stops23h 55m
British Airways
Deal found 3/10$610
This United Airlines deal was found by Cheapflights users on 3/8. 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 11/185:00 am
ONT
-
CLJ
2 stops22h 40m
United Airlines
Sun 11/226:00 am
CLJ
-
ONT
2 stops27h 06m
United Airlines
Deal found 3/8$617
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/511:05 am
ONT
-
OTP
2 stops21h 30m
United Airlines
Mon 4/2012:45 pm
OTP
-
ONT
2 stops20h 00m
United Airlines
Deal found 3/6$623
This Iberia deal was found by Cheapflights users on 3/9. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:10 am
ONT
-
OTP
2 stops22h 45m
Multiple Airlines
Sat 11/148:05 am
OTP
-
ONT
2 stops24h 18m
Multiple Airlines
Deal found 3/9$624
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/75:10 am
ONT
-
CLJ
2 stops26h 15m
United Airlines
Tue 4/146:00 am
CLJ
-
ONT
3 stops45h 47m
United Airlines
Deal found 3/10$628
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/410:37 am
ONT
-
OTP
2 stops19h 43m
United Airlines
Tue 5/121:50 pm
OTP
-
ONT
2 stops19h 09m
United Airlines
Deal found 3/11$633

Find flight deals from Ontario to Romania

Keep the following information in mind while searching for Ontario to Romania flight deals. Data was last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$567
(United Airlines)

One-way from

$290
(oojo)

Popular in

June

Cheapest in

January

Average price

$598
Provider with most accurate pricing for Los Angeles Los Angeles-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Bucharest (BUH) flights.
Search Deals
From Ontario to Romania
Search Deals
One-way flight from Ontario to Romania
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 11, 2026.
Use the filters below to find and compare flights from Ontario to Romania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Tue 4/14

5:10 am-5:25 pm

2 stops26h 15m

Cluj Napoca

Wed 4/22

1:50 pm-10:45 pm

2 stops18h 55m

$567

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Sun 4/12

5:10 am-5:25 pm

2 stops26h 15m

Cluj Napoca

Fri 4/24

6:00 am-10:45 pm

2 stops26h 45m

$567

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Tue 4/14

5:10 am-5:25 pm

2 stops26h 15m

Cluj Napoca

Tue 4/21

6:00 am-10:31 pm

2 stops26h 31m

$567

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 4/8

5:10 am-1:10 am

2 stops34h 00m

Bucharest Otopeni Intl

Wed 4/15

1:45 pm-9:56 am

2 stops30h 11m

$572

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 5/11

1:40 pm-1:10 am

2 stops25h 30m

Bucharest Otopeni Intl

Tue 5/19

1:50 pm-9:41 am

2 stops29h 51m

$603

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Sat 4/4

10:49 am-5:25 pm

2 stops20h 36m

Cluj Napoca

Wed 4/15

6:00 am-10:31 pm

2 stops26h 31m

$617

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Tue 4/7

5:10 am-5:25 pm

2 stops26h 15m

Cluj Napoca

Tue 4/14

6:00 am-12:38 pm

2 stops40h 38m

$617

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/7

11:05 am-4:20 pm

2 stops19h 15m

Bucharest Otopeni Intl

Mon 4/20

12:45 pm-10:45 pm

2 stops20h 00m

$635

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 4/24

1:27 pm-6:35 pm

2 stops43h 08m

Bucharest Otopeni Intl

Mon 5/4

6:55 pm-10:35 pm

2 stops37h 40m

$642

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Sat 4/4

10:49 am-5:25 pm

2 stops20h 36m

Cluj Napoca

Mon 4/13

1:50 pm-10:31 pm

2 stops18h 41m

$667

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 37 resultsSorted by cheapest first
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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 $678). 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 26h 15m. Ontario and Romania are separated by a distance of 6351 mi.

  • 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 $678). 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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