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Cluj Napoca

$556+ Cheap flights from Ontario (ONT) to Cluj Napoca (CLJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CLJ
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Ontario to Cluj Napoca

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Cluj Napoca (CLJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2025.

Round-trip from

$556
(United Airlines)

Popular in

July

Cheapest in

October

Average price

$1,159
From Ontario to Cluj Napoca
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Highest demand for flights based on searches. 17% potential increase in price ($170 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ontario to Cluj Napoca

Cheapest flights from Ontario to Cluj Napoca
Explore the most affordable flight options available from Ontario to Cluj Napoca. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:00 amONT - CLJ
2 stops25h 20mUnited Airlines
Thu 10/91:45 pmCLJ - ONT
2 stops19h 07mUnited Airlines
Deal found 7/29$556
This United deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:00 amONT - CLJ
2 stops24h 20mMultiple Airlines
Wed 9/176:00 amCLJ - ONT
2 stops21h 29mMultiple Airlines
Deal found 7/29$756
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1010:56 pmONT - CLJ
2 stops28h 24mLOT
Wed 9/176:05 pmCLJ - ONT
2 stops37h 24mLOT
Deal found 7/29$4,071

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Cluj Napoca that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Ontario to Cluj Napoca that are best for you.

Fly from

Ontario

Fly to

Cluj Napoca

Route

Depart

Return

Price

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Mon 9/1

6:00 am-5:20 pm

2 stops25h 20m

Cluj Napoca

Thu 10/9

1:45 pm-10:52 pm

2 stops19h 07m

$556

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Wed 9/10

7:00 am-5:20 pm

2 stops24h 20m

Cluj Napoca

Wed 9/17

6:00 am-5:29 pm

2 stops21h 29m

$756

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Wed 9/10

10:56 pm-1:20 pm

2 stops28h 24m

Cluj Napoca

Wed 9/17

6:05 pm-9:29 pm

2 stops37h 24m

$4,071

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Ontario to Cluj Napoca

Have a flexible travel schedule? Discover the best time to fly to Cluj Napoca from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Cluj Napoca

What is the cheapest month to book a flight from Ontario to Cluj Napoca?

Currently, January is the cheapest month in which you can book a flight from Ontario to Cluj Napoca (average of $675). Flying from Ontario to Cluj Napoca in June is currently the most expensive (average of $1,303). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Cluj Napoca

Get insights into the airlines that provide service to Cluj Napoca. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cluj Napoca. Reviews last updated July 30, 2025.
See what other customers who have flown with LOT and United Airlines from Ontario to Cluj Napoca have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.6
Good
1,105 reviews

Food

7.2

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
LOT
7.6
Good
1,105 reviews
LOT
7.6
Good
1,105 reviews

Food

7.2

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
United Airlines
7.4
Good
8,896 reviews
LOT
7.6
Good
1,105 reviews

Food

7.2

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Cluj Napoca. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Ontario to Cluj Napoca?

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

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

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

  • What is the cheapest month to book a flight from Ontario to Cluj Napoca?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Cluj Napoca (average of $675). Flying from Ontario to Cluj Napoca in June is currently the most expensive (average of $1,303). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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