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ONT - OTP

Find cheap flights from Ontario to Bucharest from $559

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Otopeni Intl departing on 5/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 4/28
Sun 5/5

Search hundreds of travel sites at once for deals on flights to Bucharest

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Bucharest, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Bucharest, as well as popular online travel agencies
In the last 7 days travelers have searched 46,342,885 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Otopeni Intl

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Otopeni Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:53 pm - 12:55 amONT-OTP
24h 02m2 stops
8:35 am - 10:29 pmOTP-ONT
23h 54m2 stops
$565British Airways
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Sun, Apr 21 - Tue, May 21
6:00 am - 12:55 amONT-OTP
32h 55m2 stops
3:00 pm - 1:52 pmOTP-ONT
56h 52m2 stops
$571British Airways
Find Deal
Sun, Apr 28 - Sun, May 12
6:00 am - 12:50 pmONT-OTP
44h 50m2 stops
6:15 am - 11:04 pmOTP-ONT
26h 49m2 stops
$924United Airlines
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Wed, May 1 - Fri, May 17
6:00 am - 11:30 pmONT-OTP
31h 30m2 stops
1:30 pm - 11:04 pmOTP-ONT
19h 34m2 stops
$1,001
Find Deal
Wed, Apr 24 - Wed, May 1
6:00 am - 11:30 pmONT-OTP
31h 30m2 stops
1:30 pm - 11:04 pmOTP-ONT
19h 34m2 stops
$1,074
Find Deal
Wed, Apr 17 - Wed, May 1
6:00 am - 11:50 pmONT-OTP
31h 50m2 stops
6:15 am - 10:27 pmOTP-ONT
26h 12m2 stops
$1,130United Airlines
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Sat, May 11 - Sat, Jun 1
11:40 pm - 4:25 pmONT-OTP
30h 45m2 stops
4:40 am - 10:09 pmOTP-ONT
27h 29m2 stops
$1,664Air Serbia
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Sun, May 12 - Mon, May 20
11:45 pm - 4:25 pmONT-OTP
30h 40m2 stops
4:00 pm - 10:27 pmOTP-ONT
40h 27m2 stops
$1,744Air Serbia
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Tue, Jun 18 - Wed, Oct 16
2:50 pm - 12:20 amONT-OTP
23h 30m2 stops
8:30 am - 8:08 pmOTP-ONT
21h 38m2 stops
$1,786American Airlines
Find Deal
Wed, May 15 - Sat, Jun 1
2:39 pm - 12:45 amONT-OTP
24h 06m2 stops
8:35 am - 10:05 pmOTP-ONT
23h 30m2 stops
$2,844American Airlines
Find Deal
Thu, Jun 20 - Sun, Jul 14

Flights from Ontario to Otopeni Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Otopeni Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Bucharest Otopeni Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Bucharest Otopeni Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Bucharest Otopeni Intl Airport is January, where tickets cost $567 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,523 and $1,166 respectively.

How far in advance should I book a flight from Ontario to Bucharest Otopeni Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Bucharest Otopeni Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Bucharest Otopeni Intl Airport, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 38 days before departure.

Which airlines provide the cheapest flights from Ontario to Bucharest?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Ontario to Bucharest found by KAYAK users in the last 72 hours was for $565 on British Airways, followed by United Airlines ($924). One-way flight deals have also been found from as low as $559 on British Airways and from $696 on United Airlines.

How long does a flight from Ontario to Bucharest take?

Flying to Bucharest from Ontario requires at least one layover, as there are no direct flights for this route. The shortest flight duration is 17h 54m.

Good to know

Cheapest flight

$559
Flight from Ontario to Bucharest

When to book flights from Ontario to Otopeni Intl

Are your dates flexible? Find out the best times to travel from Ontario to Otopeni Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Bucharest flights

  • What is the cheapest flight from Ontario to Bucharest Otopeni Intl Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Bucharest Otopeni Intl Airport was $559 for a one-way ticket and $565 for a round-trip.

  • Do I need a passport to fly between Ontario and Bucharest?

    A passport is required to fly from Ontario to Bucharest.

  • Which airports will I be using when flying from Ontario to Bucharest?

    When flying out of Ontario you will be using Ontario. You will be landing at Bucharest, also known as Bucharest Otopeni Intl.

  • Which aircraft models fly most regularly from Ontario to Bucharest?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Bucharest?

    oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Bucharest, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Ontario to Bucharest?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Bucharest.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Bucharest?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bucharest from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Bucharest?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bucharest with an airline and back to Ontario with another airline. Booking your flights between Ontario and OTP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Bucharest?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bucharest from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Ontario to Bucharest

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Bucharest found on KAYAK in the last 72 hours.
5/27Mon
2 stopsBritish Airways
38h 46mONT-OTP
$559
5/27Mon
3 stopsUnited Airlines
26h 35mONT-OTP
$696
6/13Thu
2 stopsUnited Airlines
25h 50mONT-OTP
$712
6/13Thu
3 stopsUnited Airlines
26h 35mONT-OTP
$810
6/5Wed
2 stops
20h 30mONT-OTP
$1,807
6/4Tue
2 stops
18h 46mONT-OTP
$5,656

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Ontario - Bucharest Flights

Departure:

Ontario (ONT)United States

Destination:

Bucharest (OTP)Romania

Cabin classes: