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

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

What airlines fly to Bucharest?

Lufthansa, British Airways and Turkish Airlines 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 37% of people opting to fly with this airline when traveling to Bucharest. Keep in mind that there are 12 different airlines that fly to Bucharest on a routine basis, so you have a few additional options to choose from.

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.

$467 Cheap Flights from Ontario to Bucharest in 2025/26

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Find the cheapest flights from Ontario to Bucharest

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1:00 pm - 6:35 pmONT-OTP

19h 35m2 stops

5:55 am - 5:47 pmOTP-ONT

21h 52m2 stops

$500United Airlines

Find Deal

Tue, Apr 21 - Thu, Apr 30

9:35 pm - 2:05 pmONT-OTP

30h 30m2 stops

6:05 am - 9:49 pmOTP-ONT

25h 44m2 stops

$511United Airlines

Find Deal

Sun, Nov 30 - Wed, Dec 10

1:24 pm - 11:55 pmONT-OTP

24h 31m2 stops

5:50 am - 8:50 pmOTP-ONT

25h 00m2 stops

$512United Airlines

Find Deal

Wed, Jan 7 - Thu, Feb 19

1:24 pm - 11:55 pmONT-OTP

24h 31m2 stops

5:55 am - 8:50 pmOTP-ONT

24h 55m2 stops

$537United Airlines

Find Deal

Wed, Jan 7 - Sun, Feb 15

7:16 am - 3:05 pmONT-OTP

21h 49m2 stops

8:05 am - 10:51 pmOTP-ONT

24h 46m2 stops

$552Multiple Airlines

Find Deal

Sat, Jan 31 - Sat, Feb 14

7:05 am - 1:00 pmONT-OTP

19h 55m2 stops

6:00 am - 5:07 pmOTP-ONT

21h 07m2 stops

$604Delta

Find Deal

Wed, Nov 26 - Thu, Dec 11

10:47 am - 3:45 pmONT-OTP

18h 58m2 stops

8:05 am - 10:28 pmOTP-ONT

24h 23m2 stops

$784Multiple Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 10

6:00 am - 11:25 pmONT-OTP

32h 25m2 stops

8:25 am - 11:43 pmOTP-ONT

25h 18m2 stops

$820American Airlines

Find Deal

Fri, Mar 27 - Tue, Mar 31

3:09 pm - 10:55 pmONT-OTP

21h 46m2 stops

8:00 am - 10:51 pmOTP-ONT

24h 51m2 stops

$1,028British Airways

Find Deal

Tue, Feb 3 - Tue, Feb 17

6:00 am - 1:50 pmONT-OTP

21h 50m2 stops

6:00 am - 4:12 pmOTP-ONT

20h 12m2 stops

$1,776Delta

Find Deal

Fri, Nov 21 - Sat, Dec 27

United Airlines flights from Ontario to Bucharest

Our best United Airlines deals on Ontario to Bucharest flight tickets

United Airlines

Apr 21

ONT1:00 pmOntario

19h 35m

2 stops

OTP6:35 pmBucharest Otopeni Intl

Apr 30

OTP5:55 amBucharest Otopeni Intl

21h 52m

2 stops

ONT5:47 pmOntario

$500

Find similar

United Airlines

Nov 30

ONT9:35 pmOntario

30h 30m

2 stops

OTP2:05 pmBucharest Otopeni Intl

Dec 10

OTP6:05 amBucharest Otopeni Intl

25h 44m

2 stops

ONT9:49 pmOntario

$511

Find similar

United Airlines

Jan 7

ONT1:24 pmOntario

24h 31m

2 stops

OTP11:55 pmBucharest Otopeni Intl

Feb 19

OTP5:50 amBucharest Otopeni Intl

25h 00m

2 stops

ONT8:50 pmOntario

$512

Find similar

Delta flights from Ontario to Bucharest

Our best Delta deals on Ontario to Bucharest flight tickets

Delta

Nov 26

ONT7:05 amOntario

19h 55m

2 stops

OTP1:00 pmBucharest Otopeni Intl

Dec 11

OTP6:00 amBucharest Otopeni Intl

21h 07m

2 stops

ONT5:07 pmOntario

$604

Find similar

Delta

Nov 21

ONT6:00 amOntario

21h 50m

2 stops

OTP1:50 pmBucharest Otopeni Intl

Dec 27

OTP6:00 amBucharest Otopeni Intl

20h 12m

2 stops

ONT4:12 pmOntario

$1,776

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 4/21

1:00 pm-6:35 pm

2 stops19h 35m

Bucharest Otopeni Intl

Thu 4/30

5:55 am-5:47 pm

2 stops21h 52m

$500

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 11/30

9:35 pm-2:05 pm

2 stops30h 30m

Bucharest Otopeni Intl

Wed 12/10

6:05 am-9:49 pm

2 stops25h 44m

$511

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 1/7

1:24 pm-11:55 pm

2 stops24h 31m

Bucharest Otopeni Intl

Thu 2/19

5:50 am-8:50 pm

2 stops25h 00m

$512

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 1/7

1:24 pm-11:55 pm

2 stops24h 31m

Bucharest Otopeni Intl

Sun 2/15

5:55 am-8:50 pm

2 stops24h 55m

$537

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 1/31

7:16 am-3:05 pm

2 stops21h 49m

Bucharest Otopeni Intl

Sat 2/14

8:05 am-10:51 pm

2 stops24h 46m

$552

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 11/26

7:05 am-1:00 pm

2 stops19h 55m

Bucharest Otopeni Intl

Thu 12/11

6:00 am-5:07 pm

2 stops21h 07m

$604

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 11/26

10:47 am-3:45 pm

2 stops18h 58m

Bucharest Otopeni Intl

Wed 12/10

8:05 am-10:28 pm

2 stops24h 23m

$784

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 3/27

6:00 am-11:25 pm

2 stops32h 25m

Bucharest Otopeni Intl

Tue 3/31

8:25 am-11:43 pm

2 stops25h 18m

$820

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 2/3

3:09 pm-10:55 pm

2 stops21h 46m

Bucharest Otopeni Intl

Tue 2/17

8:00 am-10:51 pm

2 stops24h 51m

$1,028

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 11/21

6:00 am-1:50 pm

2 stops21h 50m

Bucharest Otopeni Intl

Sat 12/27

6:00 am-4:12 pm

2 stops20h 12m

$1,776

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Bucharest?

Our data shows that Sunday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $682. The most expensive day to fly to Bucharest is Saturday, with ticket prices averaging around $821.

What is the cheapest time of day to depart on your flight to Bucharest?

According to our data, the cheapest time of day to fly to Bucharest is in the morning. momondo users have found flights departing from Ontario to Bucharest in the morning for as low as $689. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Bucharest is in the afternoon when prices are around $771.

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

Direct flights	None

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 18h 40m.
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.

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.

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Find better results for your trip to Romania

Fly into one of these airports located in Bucharest

Bucharest Otopeni Intl Airport

Cheap flights from Ontario to Bucharest from $467

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 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ontario to Bucharest

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

United Airlines flights from Ontario to Bucharest

Our best United Airlines deals on Ontario to Bucharest flight tickets

Delta flights from Ontario to Bucharest

Our best Delta deals on Ontario to Bucharest flight tickets

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Use the filters below to find and compare flights from Ontario to Bucharest that are best for you.

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 day to depart on your flight to Bucharest?

Our data shows that Sunday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $682. The most expensive day to fly to Bucharest is Saturday, with ticket prices averaging around $821.

What is the cheapest time of day to depart on your flight to Bucharest?

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

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

What airlines fly to Bucharest?

When to book flights from Ontario to Bucharest

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

Direct flights

How far is Ontario to Bucharest by plane?

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

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

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

Traveling to a place near Bucharest?

Why use momondo?

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

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

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

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

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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