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 2026

Find the cheapest flights from Ontario to Bucharest

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:24 pm - 3:50 pmONT Ontario-OTP Bucharest Otopeni Intl

17h 26m2 stops Salt Lake City Paris Charles de Gaulle

6:00 am - 10:43 pmOTP Bucharest Otopeni Intl-ONT Ontario

26h 43m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$760Multiple Airlines

Tue, Oct 27 - Mon, Nov 2

11:56 am - 3:50 pmONT Ontario-OTP Bucharest Otopeni Intl

18h 54m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

6:00 am - 10:43 pmOTP Bucharest Otopeni Intl-ONT Ontario

26h 43m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$760Multiple Airlines

Sun, Oct 25 - Mon, Nov 2

12:18 pm - 3:50 pmONT Ontario-OTP Bucharest Otopeni Intl

18h 32m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

6:00 am - 5:12 pmOTP Bucharest Otopeni Intl-ONT Ontario

21h 12m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$760Multiple Airlines

Mon, Oct 26 - Mon, Nov 2

9:01 am - 4:20 pmONT Ontario-OTP Bucharest Otopeni Intl

21h 19m2 stops San Francisco Frankfurt am Main

6:05 am - 8:01 pmOTP Bucharest Otopeni Intl-ONT Ontario

23h 56m3 stops Frankfurt am Main Seattle/Tacoma Intl San Francisco

$764United Airlines

Tue, Sep 8 - Tue, Sep 22

7:07 am - 2:10 pmONT Ontario-OTP Bucharest Otopeni Intl

21h 03m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

6:00 am - 4:30 pmOTP Bucharest Otopeni Intl-ONT Ontario

20h 30m2 stops Amsterdam Schiphol Salt Lake City

$769Delta

Sun, Nov 1 - Sat, Nov 14

7:07 am - 2:10 pmONT Ontario-OTP Bucharest Otopeni Intl

21h 03m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

6:00 am - 11:00 pmOTP Bucharest Otopeni Intl-ONT Ontario

27h 00m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$769Multiple Airlines

Sun, Nov 1 - Sat, Nov 14

6:20 am - 5:00 pmONT Ontario-OTP Bucharest Otopeni Intl

24h 40m2 stops Seattle/Tacoma Intl Amsterdam Schiphol

6:00 am - 5:13 pmOTP Bucharest Otopeni Intl-ONT Ontario

21h 13m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$774Delta

Sun, Nov 1 - Sat, Nov 14

8:03 am - 6:35 pmONT Ontario-OTP Bucharest Otopeni Intl

24h 32m2 stops San Francisco Munich Franz Josef Strauss

1:45 pm - 10:23 amOTP Bucharest Otopeni Intl-ONT Ontario

30h 38m2 stops Frankfurt am Main San Francisco

$782United Airlines

Wed, Sep 30 - Wed, Oct 14

10:30 am - 2:45 pmONT Ontario-OTP Bucharest Otopeni Intl

18h 15m2 stops Dallas/Fort Worth London Heathrow

8:20 am - 7:05 pmOTP Bucharest Otopeni Intl-ONT Ontario

20h 45m2 stops London Heathrow Phoenix Sky Harbor Intl

$789British Airways

Tue, Nov 10 - Tue, Nov 24

10:30 am - 3:05 pmONT Ontario-OTP Bucharest Otopeni Intl

18h 35m2 stops Dallas/Fort Worth London Heathrow

8:20 am - 7:05 pmOTP Bucharest Otopeni Intl-ONT Ontario

20h 45m2 stops London Heathrow Phoenix Sky Harbor Intl

$795British Airways

Tue, Nov 10 - Tue, Nov 24

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Delta flights from Ontario to Bucharest

Our best Delta deals on Ontario to Bucharest flight tickets

Delta

Nov 1

ONT7:07 amOntario

21h 03m

2 stops

OTP2:10 pmBucharest Otopeni Intl

Nov 14

OTP6:00 amBucharest Otopeni Intl

20h 30m

2 stops

ONT4:30 pmOntario

$769

Delta

Nov 1

ONT6:20 amOntario

24h 40m

2 stops

OTP5:00 pmBucharest Otopeni Intl

Nov 14

OTP6:00 amBucharest Otopeni Intl

21h 13m

2 stops

ONT5:13 pmOntario

$774

Delta

Aug 23

ONT6:20 amOntario

21h 20m

2 stops

OTP1:40 pmBucharest Otopeni Intl

Oct 23

OTP7:05 amBucharest Otopeni Intl

20h 07m

2 stops

ONT5:12 pmOntario

$849

American Airlines flights from Ontario to Bucharest

Our best American Airlines deals on Ontario to Bucharest flight tickets

American Airlines

Nov 1

ONT12:42 pmOntario

25h 03m

2 stops

OTP11:45 pmBucharest Otopeni Intl

Nov 14

OTP8:05 amBucharest Otopeni Intl

24h 52m

3 stops

ONT10:57 pmOntario

$872

American Airlines

Sep 4

ONT2:27 pmOntario

23h 23m

2 stops

OTP11:50 pmBucharest Otopeni Intl

Sep 11

OTP8:15 amBucharest Otopeni Intl

24h 22m

2 stops

ONT10:37 pmOntario

$1,012

American Airlines

Sep 4

ONT2:27 pmOntario

23h 23m

2 stops

OTP11:50 pmBucharest Otopeni Intl

Sep 11

OTP8:15 amBucharest Otopeni Intl

24h 22m

3 stops

ONT10:37 pmOntario

$1,016

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Tue 10/27

1:24 pm-3:50 pm

2 stops17h 26m

Bucharest Otopeni Intl

Mon 11/2

6:00 am-10:43 pm

2 stops26h 43m

$760

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sun 10/25

11:56 am-3:50 pm

2 stops18h 54m

Bucharest Otopeni Intl

Mon 11/2

6:00 am-10:43 pm

2 stops26h 43m

$760

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Mon 10/26

12:18 pm-3:50 pm

2 stops18h 32m

Bucharest Otopeni Intl

Mon 11/2

6:00 am-5:12 pm

2 stops21h 12m

$760

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Tue 9/8

9:01 am-4:20 pm

2 stops21h 19m

Bucharest Otopeni Intl

Tue 9/22

6:05 am-8:01 pm

3 stops23h 56m

$764

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sun 11/1

7:07 am-2:10 pm

2 stops21h 03m

Bucharest Otopeni Intl

Sat 11/14

6:00 am-4:30 pm

2 stops20h 30m

$769

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sun 11/1

7:07 am-2:10 pm

2 stops21h 03m

Bucharest Otopeni Intl

Sat 11/14

6:00 am-11:00 pm

2 stops27h 00m

$769

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sun 11/1

6:20 am-5:00 pm

2 stops24h 40m

Bucharest Otopeni Intl

Sat 11/14

6:00 am-5:13 pm

2 stops21h 13m

$774

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Wed 9/30

8:03 am-6:35 pm

2 stops24h 32m

Bucharest Otopeni Intl

Wed 10/14

1:45 pm-10:23 am

2 stops30h 38m

$782

Quickest round-trip

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Tue 11/10

10:30 am-2:45 pm

2 stops18h 15m

Bucharest Otopeni Intl

Tue 11/24

8:20 am-7:05 pm

2 stops20h 45m

$789

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Tue 11/10

10:30 am-3:05 pm

2 stops18h 35m

Bucharest Otopeni Intl

Tue 11/24

8:20 am-7:05 pm

2 stops20h 45m

$795

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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, 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 51% 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 15m
Direct flights	None

The fastest flight from Ontario to Bucharest takes 18h 15m

There are no direct flights from Ontario to Bucharest. There are no popular flight routes from Ontario to Bucharest.

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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 15m.
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.

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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 10/25. 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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Delta flights from Ontario to Bucharest

Our best Delta deals on Ontario to Bucharest flight tickets

American Airlines flights from Ontario to Bucharest

Our best American Airlines deals on Ontario to Bucharest flight tickets

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How to get the cheapest flight ticket from Ontario to Bucharest

What is the cheapest airline that flies 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

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Frequently asked questions about flying from Ontario to Bucharest

Traveling to a place near Bucharest?

Why use momondo?

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

Fly your favorite airline to Bucharest

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bucharest

List of cabin classes available on flights landing in Bucharest. Availability may vary depending on flight origin and airline.

Popular cities in Romania

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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