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Cheap flights from Ontario to Bucharest from $269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Bucharest departing on 7/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Bucharest

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
10:56 am - 10:55 pm
ONT
-
OTP
26h 59m
2 stops
British Airways Logo
6:10 pm - 10:35 pm
OTP
-
ONT
38h 25m
2 stops
$490British Airways
Tue, Mar 24 - Tue, Apr 7
United Airlines Logo
1:50 pm - 6:35 pm
ONT
-
OTP
19h 45m
2 stops
United Airlines Logo
6:05 am - 10:26 pm
OTP
-
ONT
26h 21m
2 stops
$504United Airlines
Mon, Mar 23 - Wed, Apr 8
United Airlines Logo
5:15 am - 12:20 pm
ONT
-
OTP
22h 05m
3 stops
United Airlines Logo
12:45 pm - 10:45 pm
OTP
-
ONT
20h 00m
2 stops
$506United Airlines
Tue, Mar 24 - Wed, Apr 8
United Airlines Logo
5:15 am - 1:55 pm
ONT
-
OTP
23h 40m
2 stops
United Airlines Logo
6:05 am - 10:26 pm
OTP
-
ONT
26h 21m
2 stops
$517United Airlines
Tue, Mar 24 - Thu, Apr 9
United Airlines Logo
1:50 pm - 6:35 pm
ONT
-
OTP
19h 45m
2 stops
United Airlines Logo
1:50 pm - 6:02 pm
OTP
-
ONT
38h 12m
2 stops
$525United Airlines
Mon, Mar 23 - Mon, Apr 6
United Airlines Logo
6:37 pm - 12:30 pm
ONT
-
OTP
32h 53m
3 stops
United Airlines Logo
12:45 pm - 10:45 pm
OTP
-
ONT
20h 00m
2 stops
$526United Airlines
Mon, Mar 23 - Wed, Apr 8
United Airlines Logo
11:59 pm - 2:05 pm
ONT
-
OTP
29h 06m
2 stops
United Airlines Logo
1:50 pm - 6:02 pm
OTP
-
ONT
38h 12m
2 stops
$538United Airlines
Sat, Mar 21 - Mon, Apr 6
United Airlines Logo
6:15 am - 2:05 pm
ONT
-
OTP
21h 50m
2 stops
United Airlines Logo
5:50 am - 10:18 pm
OTP
-
ONT
25h 28m
2 stops
$542United Airlines
Thu, Mar 5 - Thu, Mar 19
United Airlines Logo
1:50 pm - 6:35 pm
ONT
-
OTP
19h 45m
2 stops
United Airlines Logo
6:05 am - 10:26 pm
OTP
-
ONT
26h 21m
2 stops
$554United Airlines
Mon, Mar 23 - Sun, Apr 5
United Airlines Logo
5:15 am - 12:20 pm
ONT
-
OTP
22h 05m
3 stops
United Airlines Logo
6:15 am - 5:47 pm
OTP
-
ONT
21h 32m
2 stops
$556United Airlines
Tue, Mar 24 - Mon, Apr 6

United Airlines flights from Ontario to Bucharest

Our best United Airlines deals on Ontario to Bucharest flight tickets
United Airlines
Mar 9
ONT6:15 amOntario
27h 20m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Mar 17
OTP5:55 amBucharest Otopeni Intl
25h 23m
2 stops
ONT10:18 pmOntario
$494
United Airlines
Mar 23
ONT1:50 pmOntario
19h 45m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Apr 8
OTP6:05 amBucharest Otopeni Intl
26h 21m
2 stops
ONT10:26 pmOntario
$504
United Airlines
Mar 9
ONT6:37 pmOntario
34h 18m
3 stops
OTP1:55 pmBucharest Otopeni Intl
Mar 17
OTP5:55 amBucharest Otopeni Intl
25h 23m
2 stops
ONT10:18 pmOntario
$506

British Airways flights from Ontario to Bucharest

Our best British Airways deals on Ontario to Bucharest flight tickets
British Airways
Mar 24
ONT10:56 amOntario
26h 59m
2 stops
OTP10:55 pmBucharest Otopeni Intl
Apr 7
OTP6:10 pmBucharest Otopeni Intl
38h 25m
2 stops
ONT10:35 pmOntario
$490
British Airways
May 6
ONT4:52 pmOntario
21h 28m
2 stops
OTP12:20 amBucharest Otopeni Intl
May 20
OTP4:15 pmBucharest Otopeni Intl
39h 36m
2 stops
ONT9:51 pmOntario
$568
British Airways
May 7
ONT10:59 amOntario
28h 21m
2 stops
OTP1:20 amBucharest Otopeni Intl
May 21
OTP8:15 amBucharest Otopeni Intl
24h 21m
2 stops
ONT10:36 pmOntario
$570

momondo 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, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Ontario to Bucharest that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 3/24

10:56 am-10:55 pm

2 stops26h 59m

Bucharest Otopeni Intl

Tue 4/7

6:10 pm-10:35 pm

2 stops38h 25m

$490

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/23

1:50 pm-6:35 pm

2 stops19h 45m

Bucharest Otopeni Intl

Wed 4/8

6:05 am-10:26 pm

2 stops26h 21m

$504

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 3/24

5:15 am-12:20 pm

3 stops22h 05m

Bucharest Otopeni Intl

Wed 4/8

12:45 pm-10:45 pm

2 stops20h 00m

$506

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 3/24

5:15 am-1:55 pm

2 stops23h 40m

Bucharest Otopeni Intl

Thu 4/9

6:05 am-10:26 pm

2 stops26h 21m

$517

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/23

1:50 pm-6:35 pm

2 stops19h 45m

Bucharest Otopeni Intl

Mon 4/6

1:50 pm-6:02 pm

2 stops38h 12m

$525

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/23

6:37 pm-12:30 pm

3 stops32h 53m

Bucharest Otopeni Intl

Wed 4/8

12:45 pm-10:45 pm

2 stops20h 00m

$526

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 3/21

11:59 pm-2:05 pm

2 stops29h 06m

Bucharest Otopeni Intl

Mon 4/6

1:50 pm-6:02 pm

2 stops38h 12m

$538

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Thu 3/5

6:15 am-2:05 pm

2 stops21h 50m

Bucharest Otopeni Intl

Thu 3/19

5:50 am-10:18 pm

2 stops25h 28m

$542

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 3/23

1:50 pm-6:35 pm

2 stops19h 45m

Bucharest Otopeni Intl

Sun 4/5

6:05 am-10:26 pm

2 stops26h 21m

$554

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 3/24

5:15 am-12:20 pm

3 stops22h 05m

Bucharest Otopeni Intl

Mon 4/6

6:15 am-5:47 pm

2 stops21h 32m

$556

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bucharest from

How to get the cheapest flight ticket from Ontario to Bucharest

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Bucharest?

British Airways and United Airlines are the most popular carriers operating from Ontario to Bucharest

What airlines fly to Bucharest?

Lufthansa, British Airways and Air France are the top three most popular airlines that fly to Bucharest from Ontario according to our data. Lufthansa is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Bucharest. Keep in mind that there are 11 different airlines that fly to Bucharest on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Bucharest

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Bucharest according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Bucharest (ONT to BUH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Bucharest

Fastest flight time

21h 28m

Direct flights

None
The fastest flight from Ontario to Bucharest takes 21h 28m
There are no direct flights from Ontario to Bucharest. There are no popular flight routes from Ontario to Bucharest.
Search flight deals

  • How far is Ontario to Bucharest by plane?

    A flight from Ontario to Bucharest will travel around 6550.5 mi. A reasonable flight in good conditions will take 21h 28m.

  • When did momondo last update prices for flights from Ontario Airport to Bucharest?

    Prices for flights from Ontario Airport to Bucharest are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport to Bucharest?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Bucharest.

  • What documentation or ID do you need to fly to Bucharest?

    The required travel and health documents for your Bucharest trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bucharest. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Bucharest?

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

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Bucharest?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Bucharest for you.

Can I find flights from Ontario to Bucharest with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Bucharest from Ontario with this policy.

How can momondo help me find flights from Ontario to Bucharest?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bucharest from Ontario.

I’m not ready to book a flight from Ontario to Bucharest right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Bucharest now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bucharest and let you know when they change.

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Find better results for your trip to Romania

Fly into one of these airports located in Bucharest

Airports listed have a maximum distance of 9.6 mi from Bucharest
Bucharest Otopeni Intl Airport