Romania

$362+ Cheap flights from Ontario (ONT) to Romania

ONT — OTP
Nov 30 — Dec 71
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Cheap flight deals from Ontario to Romania

Cheapest flights from Ontario to Romania

Fri 11/279:25 am -
2 stops29h 35m
Fri 12/45:55 am -
2 stops26h 04m
Deal found 10/30$778
Fri 11/271:35 pm -
2 stops24h 20m
Fri 12/115:55 am -
2 stops24h 43m
Deal found 10/26$790
Tue 11/174:17 pm -
2 stops21h 38m
Wed 12/96:00 am -
2 stops21h 36m
Deal found 10/31$840
Tue 11/312:16 pm -
2 stops17h 34m
Wed 12/26:00 am -
2 stops20h 22m
Deal found 10/30$862
Tue 11/31:29 pm -
2 stops19h 01m
Tue 12/16:00 am -
2 stops25h 11m
Deal found 10/30$864
Fri 11/2710:37 am -
2 stops18h 33m
Fri 12/118:25 am -
2 stops23h 13m
Deal found 10/30$866
Sun 11/14:17 pm -
2 stops21h 38m
Tue 12/16:00 am -
2 stops22h 44m
Deal found 10/30$875
Mon 11/24:17 pm -
2 stops21h 38m
Tue 12/16:00 am -
2 stops25h 11m
Deal found 10/31$876
Sun 11/112:16 pm -
2 stops21h 54m
Sat 11/146:00 am -
2 stops23h 49m
Deal found 10/28$877
Thu 11/56:37 pm -
2 stops20h 23m
Thu 11/126:00 am -
2 stops24h 51m
Deal found 10/30$878
Sun 11/16:20 am -
2 stops24h 40m
Sat 11/146:00 am -
2 stops21h 16m
Deal found 10/31$881
Sun 11/14:17 pm -
2 stops21h 38m
Wed 11/256:00 am -
2 stops23h 50m
Deal found 10/29$884

Find flight deals from Ontario to Romania

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$721
(Expedia)

One-way from

$362
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$766
Provider with most accurate pricing for Los Angeles-Bucharest (BUH) flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Bucharest (BUH) flights.
From Ontario to Romania
One-way flight from Ontario to Romania
Highest demand for flights based on searches. 19% potential increase in price ($190 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sun 4/4

11:20 am-1:10 am

2 stops27h 50m

Bucharest Otopeni Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$362

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Fri 3/26

6:53 pm-5:30 pm

2 stops37h 37m

Bucharest Otopeni Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$408
Quickest round-trip

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Wed 11/11

4:51 pm-12:05 am

2 stops21h 14m

Bucharest Otopeni Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$498

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Wed 11/11

6:00 am-11:55 pm

2 stops31h 55m

Bucharest Otopeni Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$541

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sat 11/28

6:00 am-1:00 am

2 stops33h 00m

Bucharest Otopeni Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$559

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Sat 11/21

1:29 pm-11:55 pm

2 stops48h 26m

Bucharest Otopeni Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$594

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Tue 2/16

7:00 am-1:55 pm

2 stops20h 55m

Bucharest Otopeni Intl

Tue 3/2

6:00 am-9:17 pm

2 stops25h 17m

$736

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Tue 3/2

7:45 am-11:55 pm

2 stops30h 10m

Bucharest Otopeni Intl

Fri 3/5

5:55 am-10:15 pm

2 stops26h 20m

$758

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Thu 3/4

7:00 am-3:25 pm

2 stops22h 25m

Bucharest Otopeni Intl

Wed 3/10

6:00 am-10:14 pm

2 stops26h 14m

$786

OntarioBucharest

ONT Ontario - OTP Bucharest Otopeni Intl

ONTOTP

Ontario

Fri 3/5

7:00 am-11:15 pm

2 stops30h 15m

Bucharest Otopeni Intl

Fri 3/12

5:55 am-10:43 pm

2 stops26h 48m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Ontario to Romania

Have a flexible travel schedule? Discover the best time to fly to Romania from Ontario with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Romania

Peruse reviews from past customers who have flown with United Airlines from Ontario to Romania to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

  • What airport do you fly from for flights from Ontario to Romania?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Romania from Ontario.

  • How long is the flight from Ontario to Romania?

    Departing from Ontario to Romania will take you 20h 55m. Ontario and Romania are separated by a distance of 6541 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Ontario to Romania that include hotel bookings?

    Yes. In addition to deals on Ontario to Romania flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Romania?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Romania.

  • Can I find deals for business class flights from Ontario to Romania?

    Yes. Cheapflights offers flight deals from Ontario to Romania by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Ontario to Romania

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$539Average$961FlexibilityNo cancel feeOn-time69%

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