When did momondo last update prices for flights from Ontario Airport to Cluj Napoca Airport?

Prices for flights from Ontario Airport to Cluj Napoca Airport were last updated today.

How old do you have to be to fly from Ontario Airport to Cluj Napoca Airport?

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 Cluj Napoca Airport.

What documentation or ID do you need to fly to Cluj Napoca Airport?

The travel and health documents required for your trip to Cluj Napoca Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cluj Napoca Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$521 Cheap Flights from Ontario to Cluj Napoca in 2026/27

Find the cheapest flights from Ontario to Cluj Napoca

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 pm - 1:50 pmONT Ontario-CLJ Cluj Napoca

33h 10m3 stops San Francisco Boston Logan Intl Munich Franz Josef Strauss

2:35 pm - 5:36 pmCLJ Cluj Napoca-ONT Ontario

37h 01m2 stops Munich Franz Josef Strauss San Francisco

$728United Airlines

Mon, Dec 7 - Mon, Dec 14

1:40 pm - 1:50 pmONT Ontario-CLJ Cluj Napoca

38h 10m2 stops San Francisco Munich Franz Josef Strauss

6:10 am - 10:22 amCLJ Cluj Napoca-ONT Ontario

38h 12m2 stops Munich Franz Josef Strauss San Francisco

$730United Airlines

Sat, Jan 30 - Thu, Feb 11

3:59 pm - 1:50 pmONT Ontario-CLJ Cluj Napoca

35h 51m2 stops San Francisco Munich Franz Josef Strauss

2:35 pm - 8:01 pmCLJ Cluj Napoca-ONT Ontario

39h 26m2 stops Munich Franz Josef Strauss San Francisco

$740United Airlines

Sat, Jan 30 - Mon, Feb 8

6:37 pm - 1:50 pmONT Ontario-CLJ Cluj Napoca

33h 13m3 stops San Francisco Boston Logan Intl Munich Franz Josef Strauss

2:35 pm - 5:35 pmCLJ Cluj Napoca-ONT Ontario

37h 00m2 stops Munich Franz Josef Strauss San Francisco

$741United Airlines

Sun, Jan 31 - Wed, Feb 10

5:00 am - 5:40 pmONT Ontario-CLJ Cluj Napoca

26h 40m2 stops Denver Intl Munich Franz Josef Strauss

6:00 am - 10:31 pmCLJ Cluj Napoca-ONT Ontario

26h 31m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$743United Airlines

Sun, Apr 18 - Wed, Apr 21

6:37 pm - 1:50 pmONT Ontario-CLJ Cluj Napoca

33h 13m3 stops San Francisco Boston Logan Intl Munich Franz Josef Strauss

2:35 pm - 12:19 pmCLJ Cluj Napoca-ONT Ontario

55h 44m2 stops Munich Franz Josef Strauss San Francisco

$751United Airlines

Sun, Jan 31 - Mon, Feb 8

6:53 pm - 1:20 pmONT Ontario-CLJ Cluj Napoca

32h 27m3 stops San Francisco Boston Logan Intl Munich Franz Josef Strauss

2:00 pm - 11:06 pmCLJ Cluj Napoca-ONT Ontario

43h 06m3 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl San Francisco

$754United Airlines

Sun, Apr 18 - Wed, Apr 21

1:45 pm - 1:50 pmONT Ontario-CLJ Cluj Napoca

38h 05m2 stops Denver Intl Munich Franz Josef Strauss

2:00 pm - 11:06 pmCLJ Cluj Napoca-ONT Ontario

19h 06m2 stops Munich Franz Josef Strauss San Francisco

$765United Airlines

Sat, Feb 27 - Wed, Jun 2

5:00 am - 1:50 pmONT Ontario-CLJ Cluj Napoca

22h 50m2 stops Denver Intl Munich Franz Josef Strauss

2:00 pm - 8:20 pmCLJ Cluj Napoca-ONT Ontario

40h 20m2 stops Munich Franz Josef Strauss Denver Intl

$775United Airlines

Mon, Mar 1 - Mon, May 31

5:00 am - 1:50 pmONT Ontario-CLJ Cluj Napoca

22h 50m2 stops Denver Intl Munich Franz Josef Strauss

6:10 am - 9:17 pmCLJ Cluj Napoca-ONT Ontario

25h 07m2 stops Munich Franz Josef Strauss Denver Intl

$780United Airlines

Fri, Jan 29 - Thu, Feb 11

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United Airlines flights from Ontario to Cluj Napoca

Our best United Airlines deals on Ontario to Cluj Napoca flight tickets

United Airlines

Dec 7

ONT6:40 pmOntario

33h 10m

3 stops

CLJ1:50 pmCluj Napoca

Dec 14

CLJ2:35 pmCluj Napoca

37h 01m

2 stops

ONT5:36 pmOntario

$728

United Airlines

Jan 30

ONT1:40 pmOntario

38h 10m

2 stops

CLJ1:50 pmCluj Napoca

Feb 12

CLJ6:10 amCluj Napoca

25h 07m

2 stops

ONT9:17 pmOntario

$730

United Airlines

Jan 30

ONT3:59 pmOntario

35h 51m

2 stops

CLJ1:50 pmCluj Napoca

Feb 8

CLJ2:35 pmCluj Napoca

39h 26m

2 stops

ONT8:01 pmOntario

$740

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Mon 12/7

6:40 pm-1:50 pm

3 stops33h 10m

Cluj Napoca

Mon 12/14

2:35 pm-5:36 pm

2 stops37h 01m

$728

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sat 1/30

1:40 pm-1:50 pm

2 stops38h 10m

Cluj Napoca

Thu 2/11

6:10 am-10:22 am

2 stops38h 12m

$730

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sat 1/30

3:59 pm-1:50 pm

2 stops35h 51m

Cluj Napoca

Mon 2/8

2:35 pm-8:01 pm

2 stops39h 26m

$740

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sun 1/31

6:37 pm-1:50 pm

3 stops33h 13m

Cluj Napoca

Wed 2/10

2:35 pm-5:35 pm

2 stops37h 00m

$741

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sun 4/18

5:00 am-5:40 pm

2 stops26h 40m

Cluj Napoca

Wed 4/21

6:00 am-10:31 pm

2 stops26h 31m

$743

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sun 1/31

6:37 pm-1:50 pm

3 stops33h 13m

Cluj Napoca

Mon 2/8

2:35 pm-12:19 pm

2 stops55h 44m

$751

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sun 4/18

6:53 pm-1:20 pm

3 stops32h 27m

Cluj Napoca

Wed 4/21

2:00 pm-11:06 pm

3 stops43h 06m

$754

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Sat 2/27

1:45 pm-1:50 pm

2 stops38h 05m

Cluj Napoca

Wed 6/2

2:00 pm-11:06 pm

2 stops19h 06m

$765

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Mon 3/1

5:00 am-1:50 pm

2 stops22h 50m

Cluj Napoca

Mon 5/31

2:00 pm-8:20 pm

2 stops40h 20m

$775

Quickest round-trip

OntarioCluj Napoca

ONT Ontario - CLJ Cluj Napoca

ONTCLJ

Ontario

Fri 1/29

5:00 am-1:50 pm

2 stops22h 50m

Cluj Napoca

Thu 2/11

6:10 am-9:17 pm

2 stops25h 07m

$780

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Cluj Napoca

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 Cluj Napoca?

United Airlines is the most popular carrier operating from Ontario to Cluj Napoca

What airlines fly to Cluj Napoca?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Cluj Napoca from Ontario according to our data. Lufthansa is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Cluj Napoca. Keep in mind that there are 5 different airlines that fly to Cluj Napoca on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Cluj Napoca

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Cluj Napoca according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Cluj Napoca (ONT to CLJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Cluj Napoca

Best Price Found	$521
Fastest flight time	22h 50m
Direct flights	None

The best one-way flight to Cluj Napoca from Ontario in the past 72 hours is $521. The best round-trip flight deal from Ontario to Cluj Napoca found on momondo in the last 72 hours is $728.

The fastest flight from Ontario to Cluj Napoca takes 22h 50m

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

Search flight deals

Frequently asked questions about flying from Ontario to Cluj Napoca

How far is Ontario to Cluj Napoca by plane?
Cluj Napoca is 6350.7 mi away from Ontario. By plane, this route typically takes 22h 50m.
When did momondo last update prices for flights from Ontario Airport to Cluj Napoca Airport?
Prices for flights from Ontario Airport to Cluj Napoca Airport were last updated today.
How old do you have to be to fly from Ontario Airport to Cluj Napoca Airport?
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 Cluj Napoca Airport.
What documentation or ID do you need to fly to Cluj Napoca Airport?
The travel and health documents required for your trip to Cluj Napoca Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cluj Napoca Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Turda

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Cluj Napoca?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cluj Napoca from Ontario.

Can I find flights from Ontario to Cluj Napoca with flexible booking policies on momondo?

All flight searches from Ontario to Cluj Napoca on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Cluj Napoca?

Once all potential Ontario to Cluj Napoca flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Cluj Napoca right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Cluj Napoca from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.