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Bucharest

$239+ Cheap flights from Ontario (ONT) to Bucharest (BUH)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BUH
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Ontario to Bucharest

Cheapest flights from Ontario to Bucharest
Explore the most affordable flight options available from Ontario to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This Iberia deal was found by Cheapflights users on 2/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:56 am
ONT
-
OTP
2 stops18h 29m
Multiple Airlines
Tue 4/148:15 am
OTP
-
ONT
2 stops22h 39m
Multiple Airlines
Deal found 2/8$506
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 3/115:15 am
ONT
-
OTP
2 stops23h 45m
United Airlines
Tue 3/175:55 am
OTP
-
ONT
2 stops25h 23m
United Airlines
Deal found 2/9$515
This Kissandfly.com deal was found by Cheapflights users on 2/8. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:10 am
ONT
-
OTP
2 stops25h 10m
Lufthansa
Tue 4/141:50 pm
OTP
-
ONT
2 stops37h 57m
Lufthansa
Deal found 2/8$522
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/131:10 pm
ONT
-
OTP
2 stops26h 10m
British Airways
Thu 8/208:15 am
OTP
-
ONT
2 stops42h 09m
British Airways
Deal found 2/9$524
This oojo deal was found by Cheapflights users on 2/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:47 pm
ONT
-
OTP
2 stops20h 13m
British Airways
Fri 11/138:00 am
OTP
-
ONT
2 stops25h 57m
British Airways
Deal found 2/8$537
This oojo deal was found by Cheapflights users on 2/7. 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.
Thu 4/25:02 pm
ONT
-
OTP
2 stops40h 03m
British Airways
Thu 4/168:15 am
OTP
-
ONT
2 stops23h 44m
British Airways
Deal found 2/7$539
This Iberia deal was found by Cheapflights users on 2/9. 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.
Tue 3/3110:56 am
ONT
-
OTP
2 stops18h 29m
Multiple Airlines
Sun 5/108:10 am
OTP
-
ONT
2 stops24h 26m
Multiple Airlines
Deal found 2/9$556
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Fri 3/206:00 am
ONT
-
OTP
2 stops32h 50m
United Airlines
Mon 5/41:50 pm
OTP
-
ONT
2 stops43h 09m
United Airlines
Deal found 2/9$561
This oojo deal was found by Cheapflights users on 2/10. 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.
Thu 8/274:54 pm
ONT
-
OTP
2 stops22h 26m
British Airways
Wed 9/164:15 pm
OTP
-
ONT
2 stops59h 33m
British Airways
Deal found 2/10$574
This oojo deal was found by Cheapflights users on 2/10. 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.
Wed 4/112:22 pm
ONT
-
OTP
2 stops25h 58m
British Airways
Wed 4/294:15 pm
OTP
-
ONT
2 stops39h 44m
British Airways
Deal found 2/10$584
This oojo deal was found by Cheapflights users on 2/7. 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.
Thu 4/25:02 pm
ONT
-
OTP
2 stops40h 03m
British Airways
Wed 4/158:15 am
OTP
-
ONT
2 stops24h 21m
British Airways
Deal found 2/7$587
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 4/410:49 am
ONT
-
OTP
2 stops21h 46m
United Airlines
Sat 4/186:05 am
OTP
-
ONT
2 stops24h 31m
United Airlines
Deal found 2/9$603

Find flight deals from Ontario to Bucharest

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Bucharest (BUH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$506
(Iberia)

One-way from

$239
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$606
Provider with most accurate pricing for Ontario-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Bucharest (BUH) flights.
Search Deals
From Ontario to Bucharest (BUH)
Search Deals
One-way flight from Ontario to Bucharest (BUH)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Bucharest 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 February 11, 2026.
Use the filters below to find and compare flights from Ontario to Bucharest that are best for you.

Fly from

Ontario

Fly to

Bucharest

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 3/31

10:56 am-3:25 pm

2 stops18h 29m

Bucharest Otopeni Intl

Tue 4/14

8:15 am-8:54 pm

2 stops22h 39m

$506

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 3/11

5:15 am-2:00 pm

2 stops23h 45m

Bucharest Otopeni Intl

Tue 3/17

5:55 am-10:18 pm

2 stops25h 23m

$515

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 4/1

5:02 pm-12:20 am

2 stops21h 18m

Bucharest Otopeni Intl

Thu 4/16

8:15 am-9:59 pm

2 stops23h 44m

$537

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Thu 4/2

5:02 pm-7:05 pm

2 stops40h 03m

Bucharest Otopeni Intl

Thu 4/16

8:15 am-9:59 pm

2 stops23h 44m

$539

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 3/31

10:56 am-3:25 pm

2 stops18h 29m

Bucharest Otopeni Intl

Sun 5/10

8:10 am-10:36 pm

2 stops24h 26m

$556

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 3/20

6:00 am-11:50 pm

2 stops32h 50m

Bucharest Otopeni Intl

Mon 5/4

1:50 pm-10:59 pm

2 stops43h 09m

$561

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 4/4

10:49 am-6:35 pm

2 stops21h 46m

Bucharest Otopeni Intl

Sat 4/18

6:05 am-8:36 pm

2 stops24h 31m

$603

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Thu 3/12

1:40 pm-11:50 pm

2 stops25h 10m

Bucharest Otopeni Intl

Thu 3/19

5:50 am-10:18 pm

2 stops25h 28m

$614

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 3/4

5:00 am-2:00 pm

2 stops23h 00m

Bucharest Otopeni Intl

Wed 3/18

6:05 am-5:41 pm

2 stops20h 36m

$616

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 4/10

5:10 am-11:40 pm

2 stops32h 30m

Bucharest Otopeni Intl

Mon 4/20

6:55 pm-10:26 pm

2 stops37h 31m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 23 results
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Compare providers for flights from Ontario to Bucharest

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Bucharest in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Bucharest flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Bucharest flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Bucharest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Bucharest flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Bucharest flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Bucharest

Have a flexible travel schedule? Discover the best time to fly to Bucharest 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 Bucharest

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Bucharest (average of $441). Flying from Ontario to Bucharest in June is currently the most expensive (average of $680). 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 Bucharest. 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 Bucharest?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Bucharest. 0 airlines have flights from Ontario to Bucharest on a regular basis. Booking flights from Ontario to Bucharest should not be difficult; the airport handles an average of 0 outbound flights to Bucharest per day.

  • How long is the flight from Ontario to Bucharest?

    There are many flights that can get you from Ontario to Bucharest in 21h 18m. Fly via United Airlines or British Airways to get the fastest option. Airlines will cover a distance of 6541 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Ontario to Bucharest (average of $441). Flying from Ontario to Bucharest in June is currently the most expensive (average of $680). 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

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

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