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Cheap flights from Ontario to Bucharest from $360

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 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
United Airlines Logo
1:18 pm - 6:35 pm
ONT
-
OTP
43h 17m
2 stops
United Airlines Logo
6:05 am - 10:59 pm
OTP
-
ONT
26h 54m
2 stops
$722United Airlines
Sun, Jul 26 - Fri, Aug 21
United Airlines Logo
1:18 pm - 6:35 pm
ONT
-
OTP
19h 17m
2 stops
United Airlines Logo
6:15 am - 8:53 pm
OTP
-
ONT
24h 38m
2 stops
$724United Airlines
Mon, Jul 27 - Wed, Aug 19
Multiple Airlines Logo
10:47 am - 2:45 pm
ONT
-
OTP
17h 58m
2 stops
Multiple Airlines Logo
8:00 am - 10:23 pm
OTP
-
ONT
24h 23m
2 stops
$725Multiple Airlines
Tue, Nov 3 - Tue, Nov 17
United Airlines Logo
1:18 pm - 4:20 pm
ONT
-
OTP
17h 02m
2 stops
United Airlines Logo
6:05 am - 6:16 pm
OTP
-
ONT
22h 11m
2 stops
$734United Airlines
Mon, Aug 17 - Wed, Aug 26
United Airlines Logo
1:18 pm - 6:35 pm
ONT
-
OTP
43h 17m
2 stops
United Airlines Logo
1:50 pm - 8:01 pm
OTP
-
ONT
40h 11m
3 stops
$742United Airlines
Sun, Jul 26 - Tue, Aug 18
United Airlines Logo
4:20 pm - 6:40 pm
ONT
-
OTP
40h 20m
2 stops
United Airlines Logo
1:45 pm - 10:59 pm
OTP
-
ONT
19h 14m
2 stops
$752United Airlines
Sat, Jul 25 - Thu, Aug 20
United Airlines Logo
1:18 pm - 6:35 pm
ONT
-
OTP
43h 17m
2 stops
United Airlines Logo
6:05 am - 10:35 pm
OTP
-
ONT
26h 30m
2 stops
$753United Airlines
Sun, Jul 26 - Thu, Aug 13
United Airlines Logo
4:20 pm - 6:40 pm
ONT
-
OTP
40h 20m
2 stops
United Airlines Logo
6:15 am - 6:16 pm
OTP
-
ONT
22h 01m
2 stops
$754United Airlines
Sat, Jul 25 - Wed, Aug 19
United Airlines Logo
1:18 pm - 4:20 pm
ONT
-
OTP
17h 02m
2 stops
United Airlines Logo
12:45 pm - 10:35 pm
OTP
-
ONT
19h 50m
2 stops
$766United Airlines
Mon, Aug 24 - Wed, Sep 2
Lufthansa Logo
6:53 pm - 6:35 pm
ONT
-
OTP
37h 42m
2 stops
Lufthansa Logo
2:35 pm - 11:06 pm
OTP
-
ONT
18h 31m
2 stops
$768Lufthansa
Sun, Nov 1 - Sat, Nov 14

United Airlines flights from Ontario to Bucharest

Our best United Airlines deals on Ontario to Bucharest flight tickets
United Airlines
Jul 26
ONT1:18 pmOntario
43h 17m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Aug 21
OTP6:05 amBucharest Otopeni Intl
26h 54m
2 stops
ONT10:59 pmOntario
$722
United Airlines
Jul 27
ONT1:18 pmOntario
19h 17m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Aug 19
OTP6:15 amBucharest Otopeni Intl
24h 38m
2 stops
ONT8:53 pmOntario
$724
United Airlines
Aug 17
ONT1:18 pmOntario
17h 02m
2 stops
OTP4:20 pmBucharest Otopeni Intl
Aug 26
OTP6:05 amBucharest Otopeni Intl
22h 11m
2 stops
ONT6:16 pmOntario
$734

Turkish Airlines flights from Ontario to Bucharest

Our best Turkish Airlines deals on Ontario to Bucharest flight tickets
Turkish Airlines
Jun 8
ONT10:41 pmOntario
29h 54m
2 stops
OTP2:35 pmBucharest Otopeni Intl
Jul 7
OTP9:35 pmBucharest Otopeni Intl
35h 09m
2 stops
ONT10:44 pmOntario
$1,808
Turkish Airlines
Jun 8
ONT10:41 pmOntario
23h 29m
2 stops
OTP8:10 amBucharest Otopeni Intl
Jul 8
OTP3:55 pmBucharest Otopeni Intl
40h 49m
2 stops
ONT10:44 pmOntario
$1,825
Turkish Airlines
Jun 9
ONT10:41 pmOntario
53h 54m
2 stops
OTP2:35 pmBucharest Otopeni Intl
Jul 7
OTP9:35 pmBucharest Otopeni Intl
35h 09m
2 stops
ONT10:44 pmOntario
$1,830

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 June 6, 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

Cheapest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 7/26

1:18 pm-6:35 pm

2 stops43h 17m

Bucharest Otopeni Intl

Fri 8/21

6:05 am-10:59 pm

2 stops26h 54m

$722

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 7/27

1:18 pm-6:35 pm

2 stops19h 17m

Bucharest Otopeni Intl

Wed 8/19

6:15 am-8:53 pm

2 stops24h 38m

$724

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 11/3

10:47 am-2:45 pm

2 stops17h 58m

Bucharest Otopeni Intl

Tue 11/17

8:00 am-10:23 pm

2 stops24h 23m

$725

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 8/17

1:18 pm-4:20 pm

2 stops17h 02m

Bucharest Otopeni Intl

Wed 8/26

6:05 am-6:16 pm

2 stops22h 11m

$734

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 7/26

1:18 pm-6:35 pm

2 stops43h 17m

Bucharest Otopeni Intl

Tue 8/18

1:50 pm-8:01 pm

3 stops40h 11m

$742

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 7/25

4:20 pm-6:40 pm

2 stops40h 20m

Bucharest Otopeni Intl

Thu 8/20

1:45 pm-10:59 pm

2 stops19h 14m

$752

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 7/26

1:18 pm-6:35 pm

2 stops43h 17m

Bucharest Otopeni Intl

Thu 8/13

6:05 am-10:35 pm

2 stops26h 30m

$753

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 7/25

4:20 pm-6:40 pm

2 stops40h 20m

Bucharest Otopeni Intl

Wed 8/19

6:15 am-6:16 pm

2 stops22h 01m

$754
Quickest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 8/24

1:18 pm-4:20 pm

2 stops17h 02m

Bucharest Otopeni Intl

Wed 9/2

12:45 pm-10:35 pm

2 stops19h 50m

$766

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 11/1

6:53 pm-6:35 pm

2 stops37h 42m

Bucharest Otopeni Intl

Sat 11/14

2:35 pm-11:06 pm

2 stops18h 31m

$768

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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?

Brussels Airlines, United Airlines, and Air Serbia are the most popular carriers operating from Ontario to Bucharest

What airlines fly to Bucharest?

Lufthansa, Turkish Airlines and British Airways 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 49% of people opting to fly with this airline when traveling to Bucharest. Keep in mind that there are 10 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

18h 58m

Direct flights

None
The fastest flight from Ontario to Bucharest takes 18h 58m
There are no direct flights from Ontario to Bucharest. There are no popular flight routes from Ontario to Bucharest.
Search flight deals

Frequently asked questions about flying from Ontario to Bucharest

  • 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 18h 58m.

  • 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 many operators does momondo search for flights from Ontario Airport to Bucharest?

  • 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.

Best airlines flying from Ontario to Bucharest

Compare and see reviews for airlines that fly from Ontario to Bucharest with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $539Free CancellationRating
7.4
9,777 reviews
Search United Airlines flights
DeltaPriceFrom $803Free CancellationRating
7.8
8,395 reviews
Search Delta flights

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