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Bucharest

$219+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BUH
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

This oojo deal was found by Cheapflights users on 1/19. 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 8/41:10 pm
ONT
-
OTP
2 stops26h 10m
British Airways
Fri 8/218:15 am
OTP
-
ONT
2 stops23h 59m
British Airways
Deal found 1/19$492
This KAYAK deal was found by Cheapflights users on 1/20. 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.
Tue 4/74:52 pm
ONT
-
OTP
2 stops22h 28m
British Airways
Thu 4/168:15 am
OTP
-
ONT
2 stops24h 20m
British Airways
Deal found 1/20$504
This Iberia deal was found by Cheapflights users on 1/18. 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 2/157:00 am
ONT
-
OTP
2 stops26h 35m
Multiple Airlines
Wed 3/48:05 am
OTP
-
ONT
2 stops24h 44m
Multiple Airlines
Deal found 1/18$509
This KAYAK deal was found by Cheapflights users on 1/19. 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 4/126:00 am
ONT
-
OTP
2 stops32h 50m
British Airways
Mon 4/203:40 pm
OTP
-
ONT
2 stops58h 42m
British Airways
Deal found 1/19$510
This Delta deal was found by Cheapflights users on 1/20. 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.
Mon 4/2011:53 am
ONT
-
OTP
2 stops19h 27m
Delta
Tue 4/286:00 am
OTP
-
ONT
2 stops21h 15m
Delta
Deal found 1/20$511
This United Airlines deal was found by Cheapflights users on 1/20. 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 4/71:34 pm
ONT
-
OTP
2 stops16h 46m
United Airlines
Wed 4/156:05 am
OTP
-
ONT
2 stops21h 42m
United Airlines
Deal found 1/20$514
This KAYAK deal was found by Cheapflights users on 1/20. 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.
Mon 4/1311:59 pm
ONT
-
OTP
2 stops39h 21m
British Airways
Mon 4/203:40 pm
OTP
-
ONT
2 stops58h 42m
British Airways
Deal found 1/20$515
This United Airlines deal was found by Cheapflights users on 1/20. 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
-
OTP
2 stops27h 25m
United Airlines
Mon 4/206:55 pm
OTP
-
ONT
2 stops37h 31m
United Airlines
Deal found 1/20$517
This United Airlines deal was found by Cheapflights users on 1/18. 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 1/266:00 am
ONT
-
OTP
2 stops22h 05m
United Airlines
Thu 2/55:50 am
OTP
-
ONT
2 stops21h 53m
United Airlines
Deal found 1/18$519
This oojo deal was found by Cheapflights users on 1/20. 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 5/64:52 pm
ONT
-
OTP
2 stops21h 28m
British Airways
Wed 5/138:15 am
OTP
-
ONT
2 stops24h 20m
British Airways
Deal found 1/20$530
This KAYAK deal was found by Cheapflights users on 1/19. 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.
Tue 5/54:52 pm
ONT
-
OTP
2 stops22h 28m
British Airways
Thu 5/148:15 am
OTP
-
ONT
2 stops23h 44m
British Airways
Deal found 1/19$534
This oojo deal was found by Cheapflights users on 1/20. 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 3/185:02 pm
ONT
-
OTP
2 stops21h 28m
British Airways
Thu 4/23:40 pm
OTP
-
ONT
2 stops58h 42m
British Airways
Deal found 1/20$536

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$504
(KAYAK)

One-way from

$219
(Iberia)

Popular in

June

Cheapest in

October

Average price

$596
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. 9% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 20, 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 4/7

4:52 pm-1:20 am

2 stops22h 28m

Bucharest Otopeni Intl

Wed 4/15

8:15 am-10:35 pm

2 stops24h 20m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/14

4:52 pm-1:20 am

2 stops22h 28m

Bucharest Otopeni Intl

Tue 4/21

8:15 am-8:54 pm

2 stops22h 39m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 4/5

5:02 pm-12:50 am

2 stops21h 48m

Bucharest Otopeni Intl

Tue 4/14

8:15 am-10:35 pm

2 stops24h 20m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 4/5

5:02 pm-12:50 am

2 stops21h 48m

Bucharest Otopeni Intl

Wed 4/15

8:15 am-10:35 pm

2 stops24h 20m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/14

4:52 pm-1:20 am

2 stops22h 28m

Bucharest Otopeni Intl

Wed 4/22

8:15 am-11:46 pm

2 stops25h 31m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/14

1:34 pm-4:20 pm

2 stops16h 46m

Bucharest Otopeni Intl

Tue 4/21

6:05 am-6:02 pm

2 stops21h 57m

$514

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 4/12

5:10 am-6:35 pm

2 stops27h 25m

Bucharest Otopeni Intl

Mon 4/20

6:55 pm-10:26 pm

2 stops37h 31m

$517

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 2/10

6:00 am-1:55 pm

2 stops21h 55m

Bucharest Otopeni Intl

Tue 2/17

5:55 am-5:41 pm

2 stops21h 46m

$519

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 2/11

6:00 am-2:00 pm

2 stops22h 00m

Bucharest Otopeni Intl

Tue 2/17

5:55 am-5:41 pm

2 stops21h 46m

$519

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 2/9

5:05 am-2:05 pm

2 stops23h 00m

Bucharest Otopeni Intl

Tue 2/17

5:55 am-5:41 pm

2 stops21h 46m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Ovago the most. Ovago 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 $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 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 22h 28m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 6541 mi.

  • 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 $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

Traveling to a place near Bucharest?

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

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