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Bucharest

$269+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BUH
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 4, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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 3/96:15 am
ONT
-
OTP
2 stops27h 20m
United Airlines
Tue 3/175:55 am
OTP
-
ONT
2 stops25h 23m
United Airlines
Deal found 2/3$494
This United Airlines deal was found by Cheapflights users on 2/2. 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 4/71:27 pm
ONT
-
OTP
2 stops25h 43m
United Airlines
Wed 4/156:05 am
OTP
-
ONT
2 stops21h 42m
United Airlines
Deal found 2/2$504
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/251:40 pm
ONT
-
OTP
2 stops25h 15m
United Airlines
Wed 4/86:05 am
OTP
-
ONT
2 stops24h 31m
United Airlines
Deal found 2/2$517
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Thu 3/51:40 pm
ONT
-
OTP
2 stops24h 10m
United Airlines
Thu 3/125:50 am
OTP
-
ONT
2 stops25h 28m
United Airlines
Deal found 2/3$541
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/66:15 am
ONT
-
OTP
2 stops31h 35m
United Airlines
Fri 3/205:55 am
OTP
-
ONT
2 stops44h 43m
United Airlines
Deal found 2/2$542
This United Airlines deal was found by Cheapflights users on 2/3. 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 8/191:00 pm
ONT
-
OTP
2 stops17h 20m
United Airlines
Tue 10/277:10 pm
OTP
-
ONT
2 stops36h 16m
United Airlines
Deal found 2/3$561
This oojo deal was found by Cheapflights users on 2/3. 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 8/264:54 pm
ONT
-
OTP
2 stops21h 26m
British Airways
Wed 9/168:15 am
OTP
-
ONT
2 stops23h 35m
British Airways
Deal found 2/3$567
This oojo deal was found by Cheapflights users on 2/2. 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 5/710:59 am
ONT
-
OTP
2 stops28h 21m
British Airways
Thu 5/218:15 am
OTP
-
ONT
2 stops24h 21m
British Airways
Deal found 2/2$570
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Thu 3/261:50 pm
ONT
-
OTP
2 stops49h 00m
United Airlines
Thu 4/96:05 am
OTP
-
ONT
2 stops26h 40m
United Airlines
Deal found 2/3$572
This oojo deal was found by Cheapflights users on 2/3. 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.
Fri 8/2812:47 pm
ONT
-
OTP
2 stops20h 18m
British Airways
Tue 9/158:15 am
OTP
-
ONT
2 stops26h 02m
British Airways
Deal found 2/3$609
This oojo deal was found by Cheapflights users on 2/3. 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 4/154:52 pm
ONT
-
OTP
2 stops21h 28m
British Airways
Wed 9/98:15 am
OTP
-
ONT
2 stops23h 35m
British Airways
Deal found 2/3$614

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 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$490
(oojo)

One-way from

$269
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$655
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 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 4, 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

Mon 3/9

6:15 am-6:35 pm

2 stops27h 20m

Bucharest Otopeni Intl

Tue 3/17

5:55 am-10:18 pm

2 stops25h 23m

$494

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/14

1:27 pm-1:10 am

2 stops25h 43m

Bucharest Otopeni Intl

Tue 4/21

6:05 am-6:02 pm

2 stops21h 57m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/7

1:27 pm-1:10 am

2 stops25h 43m

Bucharest Otopeni Intl

Wed 4/15

6:05 am-5:47 pm

2 stops21h 42m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 3/25

1:40 pm-11:55 pm

2 stops25h 15m

Bucharest Otopeni Intl

Wed 4/8

6:05 am-8:36 pm

2 stops24h 31m

$517

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Thu 3/5

1:40 pm-11:50 pm

2 stops24h 10m

Bucharest Otopeni Intl

Thu 3/12

5:50 am-10:18 pm

2 stops25h 28m

$541

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 3/6

6:15 am-11:50 pm

2 stops31h 35m

Bucharest Otopeni Intl

Fri 3/20

5:55 am-5:38 pm

2 stops44h 43m

$542

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 5/5

12:19 pm-1:20 am

2 stops27h 01m

Bucharest Otopeni Intl

Tue 5/19

8:15 am-8:54 pm

2 stops22h 39m

$567

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 4/19

7:00 am-1:05 pm

2 stops20h 05m

Bucharest Otopeni Intl

Mon 4/27

6:05 am-5:47 pm

2 stops21h 42m

$567

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Thu 5/7

10:59 am-1:20 am

2 stops28h 21m

Bucharest Otopeni Intl

Thu 5/21

8:15 am-10:36 pm

2 stops24h 21m

$570

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Thu 3/26

1:50 pm-11:50 pm

2 stops49h 00m

Bucharest Otopeni Intl

Thu 4/9

6:05 am-10:45 pm

2 stops26h 40m

$572

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 22 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 $692). 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 27h 20m. Fly via United Airlines 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 $692). 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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