$335 Find Cheap Flights from Ontario to Romania

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 Romania departing on 9/8. 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
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Ontario to Romania Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Romania 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Romania

Wed, Aug 26 - Wed, Sep 16
United Airlines Logo
5:00 am - 5:25 pm
ONT
-
CLJ
26h 25m
2 stops
United Airlines Logo
1:50 pm - 6:11 pm
CLJ
-
ONT
38h 21m
2 stops
$748United Airlines
Tue, Aug 11 - Mon, Aug 24
United Airlines Logo
1:18 pm - 4:20 pm
ONT
-
OTP
17h 02m
2 stops
United Airlines Logo
1:50 pm - 10:58 pm
OTP
-
ONT
19h 08m
2 stops
$785United Airlines
Tue, Oct 13 - Tue, Oct 27
Multiple Airlines Logo
10:25 am - 3:25 pm
ONT
-
OTP
19h 00m
2 stops
Multiple Airlines Logo
8:00 am - 9:08 pm
OTP
-
ONT
22h 08m
2 stops
$790Multiple Airlines
Tue, Sep 15 - Wed, Oct 28
Multiple Airlines Logo
10:25 am - 3:25 pm
ONT
-
OTP
19h 00m
2 stops
Multiple Airlines Logo
8:05 am - 9:08 pm
OTP
-
ONT
22h 03m
2 stops
$820Multiple Airlines
Sun, Oct 11 - Sun, Oct 25
United Airlines Logo
6:30 pm - 4:20 pm
ONT
-
OTP
35h 50m
2 stops
United Airlines Logo
7:10 pm - 10:26 pm
OTP
-
ONT
36h 16m
2 stops
$840United Airlines
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
5:00 am - 5:25 pm
ONT
-
CLJ
26h 25m
2 stops
United Airlines Logo
6:00 am - 8:52 pm
CLJ
-
ONT
24h 52m
2 stops
$848United Airlines
Tue, Sep 1 - Thu, Oct 1
Multiple Airlines Logo
10:25 am - 3:25 pm
ONT
-
OTP
19h 00m
2 stops
Multiple Airlines Logo
8:15 am - 9:08 pm
OTP
-
ONT
22h 53m
2 stops
$871Multiple Airlines
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
7:13 pm - 5:25 pm
ONT
-
CLJ
36h 12m
2 stops
United Airlines Logo
6:00 am - 8:52 pm
CLJ
-
ONT
24h 52m
2 stops
$903United Airlines
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
7:13 pm - 5:25 pm
ONT
-
CLJ
36h 12m
3 stops
United Airlines Logo
6:00 am - 8:52 pm
CLJ
-
ONT
24h 52m
2 stops
$910United Airlines
Mon, Oct 12 - Mon, Oct 26
British Airways Logo
12:35 pm - 1:20 am
ONT
-
OTP
26h 45m
2 stops
British Airways Logo
8:05 am - 9:29 am
OTP
-
ONT
34h 24m
2 stops
$917British Airways
Booking Insights

KAYAK's insights & trends for Ontario to Romania flights

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

Which airlines provide the cheapest flights from Ontario to Romania?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Romania were found on United Airlines ($748) and British Airways ($917).

Good to know

Cheapest flight$335
Flight from Ontario to Bucharest

FAQs - booking Romania flights

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

    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 Romania.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Romania 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 Romania?

    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 from Ontario to Romania with an airline and back with another airline.

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

    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 from Ontario to Romania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Romania

 
Need help choosing which airline to fly with from Ontario to Romania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9602 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

2.0 MediocreAnonymous, Apr 2026
SFO - FRA
Read more United Airlines reviews

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

The business class seat is exceptional. I wish the food is more palatable.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Business class seats felt very cramped compared to other airlines.

Everything you need to know for your flight from Ontario to Romania

Information on your arrival and departure airports