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

Prices for flights from Ontario Airport to Romania refresh daily.

How many operators does momondo search for flights from Ontario Airport to Romania?

The number of operators available for flights from Ontario Airport to Romania is 2 as of June 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Romania.

What documentation or ID do you need to fly to Romania?

The necessary travel and health documents for your Romania trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$471 Cheap Flights from Ontario to Romania in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Romania

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 6:35 pm

ONT

OTP

26h 25m

2 stops

6:05 am - 8:01 pm

OTP

ONT

23h 56m

3 stops

$721United Airlines

Mon, Jul 27 - Fri, Aug 21

5:00 am - 1:10 am

ONT

OTP

34h 10m

2 stops

12:45 pm - 8:01 pm

OTP

ONT

41h 16m

3 stops

$723United Airlines

Mon, Jul 27 - Thu, Aug 20

1:18 pm - 4:20 pm

ONT

OTP

17h 02m

2 stops

6:15 am - 8:53 pm

OTP

ONT

24h 38m

2 stops

$735United Airlines

Wed, Aug 19 - Tue, Aug 25

1:18 pm - 6:35 pm

ONT

OTP

19h 17m

2 stops

1:50 pm - 8:01 pm

OTP

ONT

40h 11m

2 stops

$741United Airlines

Mon, Jul 27 - Tue, Aug 18

6:39 pm - 6:35 pm

ONT

OTP

37h 56m

2 stops

6:05 am - 8:01 pm

OTP

ONT

23h 56m

3 stops

$752United Airlines

Mon, Jul 27 - Thu, Aug 13

10:25 am - 3:25 pm

ONT

OTP

19h 00m

2 stops

8:00 am - 9:08 pm

OTP

ONT

22h 08m

2 stops

$754Multiple Airlines

Tue, Oct 13 - Tue, Oct 27

5:00 am - 1:10 pm

ONT

CLJ

22h 10m

3 stops

1:50 pm - 10:59 pm

CLJ

ONT

19h 09m

2 stops

$755United Airlines

Tue, Sep 1 - Wed, Sep 30

7:00 am - 12:30 pm

ONT

OTP

19h 30m

2 stops

7:10 pm - 10:26 pm

OTP

ONT

37h 16m

2 stops

$756United Airlines

Wed, Nov 11 - Wed, Nov 25

1:18 pm - 6:35 pm

ONT

OTP

19h 17m

2 stops

12:45 pm - 8:53 pm

OTP

ONT

42h 08m

2 stops

$763United Airlines

Mon, Jul 27 - Mon, Aug 17

9:55 am - 10:50 pm

ONT

OTP

26h 55m

2 stops

6:00 am - 11:48 pm

OTP

ONT

27h 48m

2 stops

$769Delta

Sun, Nov 1 - Sat, Nov 14

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Delta flights from Ontario to Romania

Our best Delta deals on Ontario to Romania flight tickets

Delta

Nov 1

ONT9:55 amOntario

26h 55m

2 stops

OTP10:50 pmBucharest Otopeni Intl

Nov 14

OTP6:00 amBucharest Otopeni Intl

27h 48m

2 stops

ONT11:48 pmOntario

$769

Delta

Jul 18

ONT5:10 pmOntario

57h 50m

2 stops

OTP1:00 pmBucharest Otopeni Intl

Sep 16

OTP7:05 amBucharest Otopeni Intl

26h 32m

2 stops

ONT11:37 pmOntario

$784

Delta

Jul 14

ONT11:59 amOntario

19h 41m

2 stops

OTP5:40 pmBucharest Otopeni Intl

Sep 14

OTP2:00 pmBucharest Otopeni Intl

54h 47m

2 stops

ONT10:47 amOntario

$789

United Airlines flights from Ontario to Romania

Our best United Airlines deals on Ontario to Romania flight tickets

United Airlines

Jul 27

ONT6:10 amOntario

26h 25m

2 stops

OTP6:35 pmBucharest Otopeni Intl

Aug 21

OTP6:05 amBucharest Otopeni Intl

23h 56m

3 stops

ONT8:01 pmOntario

$721

United Airlines

Jul 27

ONT5:00 amOntario

34h 10m

2 stops

OTP1:10 amBucharest Otopeni Intl

Aug 20

OTP12:45 pmBucharest Otopeni Intl

41h 16m

3 stops

ONT8:01 pmOntario

$723

United Airlines

Aug 19

ONT1:18 pmOntario

17h 02m

2 stops

OTP4:20 pmBucharest Otopeni Intl

Aug 25

OTP6:15 amBucharest Otopeni Intl

24h 38m

2 stops

ONT8:53 pmOntario

$735

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 7/27

6:10 am-6:35 pm

2 stops26h 25m

Bucharest Otopeni Intl

Fri 8/21

6:05 am-8:01 pm

3 stops23h 56m

$721

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 7/27

5:00 am-1:10 am

2 stops34h 10m

Bucharest Otopeni Intl

Thu 8/20

12:45 pm-8:01 pm

3 stops41h 16m

$723

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 8/19

1:18 pm-4:20 pm

2 stops17h 02m

Bucharest Otopeni Intl

Tue 8/25

6:15 am-8:53 pm

2 stops24h 38m

$735

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 7/27

1:18 pm-6:35 pm

2 stops19h 17m

Bucharest Otopeni Intl

Tue 8/18

1:50 pm-8:01 pm

2 stops40h 11m

$741

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 7/27

6:39 pm-6:35 pm

2 stops37h 56m

Bucharest Otopeni Intl

Thu 8/13

6:05 am-8:01 pm

3 stops23h 56m

$752

Quickest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 10/13

10:25 am-3:25 pm

2 stops19h 00m

Bucharest Otopeni Intl

Tue 10/27

8:00 am-9:08 pm

2 stops22h 08m

$754

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Tue 9/1

5:00 am-1:10 pm

3 stops22h 10m

Cluj Napoca

Wed 9/30

1:50 pm-10:59 pm

2 stops19h 09m

$755

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 11/11

7:00 am-12:30 pm

2 stops19h 30m

Bucharest Otopeni Intl

Wed 11/25

7:10 pm-10:26 pm

2 stops37h 16m

$756

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 7/27

1:18 pm-6:35 pm

2 stops19h 17m

Bucharest Otopeni Intl

Mon 8/17

12:45 pm-8:53 pm

2 stops42h 08m

$763

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 11/1

9:55 am-10:50 pm

2 stops26h 55m

Bucharest Otopeni Intl

Sat 11/14

6:00 am-11:48 pm

2 stops27h 48m

$769

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Romania

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 Romania?

United Airlines is the most popular carrier operating from Ontario to Romania

What airlines fly to Romania?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Romania from Ontario according to our data. Lufthansa is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Romania. Keep in mind that there are 10 different airlines that fly to Romania on a routine basis, so you have a few additional options to choose from.

Cheap Ontario to Romania flight deals and tips

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

Fastest flight time	17h 12m
Direct flights	None

The fastest flight from Ontario to Romania takes 17h 12m

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

Search flight deals

Frequently asked questions about flying from Ontario to Romania

When did momondo last update prices for flights from Ontario Airport to Romania?
Prices for flights from Ontario Airport to Romania refresh daily.
How many operators does momondo search for flights from Ontario Airport to Romania?
The number of operators available for flights from Ontario Airport to Romania is 2 as of June 2026.
How old do you have to be to fly from Ontario Airport to Romania?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Romania.
What documentation or ID do you need to fly to Romania?
The necessary travel and health documents for your Romania trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Romania

Compare and see reviews for airlines that fly from Ontario to Romania with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $539	Free Cancellation	Rating 7.4 9,818 reviews		Search United Airlines flights
Delta	PriceFrom $803	Free Cancellation	Rating 7.9 8,403 reviews		Search Delta flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Romania. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Ontario to Romania flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Romania?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Romania from Ontario.

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

If you are not ready to book a flight from Ontario to Romania now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Romania and let you know when they change.