What is the cheapest airline that flies from Ontario to Southeast Europe?

British Airways, United Airlines, and Virgin Atlantic are the most popular carriers operating from Ontario to Southeast Europe

What airlines fly to Southeast Europe?

Lufthansa, Turkish Airlines and Norse Atlantic Airways are the top three most popular airlines that fly to Southeast Europe from Ontario according to our data. Lufthansa is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Southeast Europe. Keep in mind that there are 20 different airlines that fly to Southeast Europe on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Ontario Airport to Southeast Europe were last updated today.

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

The number of operators available for flights from Ontario Airport to Southeast Europe is 1 as of April 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Southeast Europe.

What documentation or ID do you need to fly to Southeast Europe?

The required travel and health documents for your Southeast Europe trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Europe. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$335 Cheap Flights from Ontario to Southeast Europe in 2026

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Find the cheapest flights from Ontario to Southeast Europe

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:59 pm - 6:35 pm

ONT

OTP

37h 36m

2 stops

6:05 am - 9:41 am

OTP

ONT

37h 36m

2 stops

$721United Airlines

Sat, May 2 - Wed, May 13

11:53 am - 5:20 pm

ONT

OTP

19h 27m

2 stops

7:05 am - 5:10 pm

OTP

ONT

20h 05m

2 stops

$723Delta

Mon, May 4 - Tue, May 12

10:15 pm - 12:45 pm

ONT

OTP

52h 30m

2 stops

2:00 pm - 5:10 pm

OTP

ONT

37h 10m

2 stops

$726Delta

Sun, May 3 - Mon, May 11

6:59 pm - 6:35 pm

ONT

OTP

37h 36m

2 stops

12:45 pm - 5:52 pm

OTP

ONT

39h 07m

2 stops

$733United Airlines

Sat, May 2 - Mon, May 11

4:54 pm - 3:30 pm

ONT

DBV

37h 36m

2 stops

9:00 pm - 9:08 pm

DBV

ONT

33h 08m

2 stops

$792British Airways

Wed, Aug 5 - Wed, Aug 19

12:35 pm - 7:25 pm

ONT

ZAG

21h 50m

2 stops

2:40 pm - 9:08 pm

ZAG

ONT

39h 28m

2 stops

$801British Airways

Mon, Aug 17 - Mon, Aug 24

5:00 am - 11:10 am

ONT

ATH

20h 10m

2 stops

3:25 pm - 12:38 pm

ATH

ONT

31h 13m

2 stops

$808Air Canada

Sun, Aug 16 - Wed, Sep 2

11:59 pm - 6:55 pm

ONT

DBV

33h 56m

2 stops

7:45 pm - 11:06 pm

DBV

ONT

36h 21m

2 stops

$808Multiple Airlines

Mon, Aug 31 - Wed, Sep 9

2:22 pm - 11:45 am

ONT

ATH

35h 23m

1 stop

6:55 am - 11:06 pm

ATH

ONT

26h 11m

2 stops

$842Iberia

Tue, Sep 1 - Wed, Sep 9

11:59 pm - 6:25 pm

ONT

SPU

33h 26m

2 stops

7:10 pm - 10:38 pm

SPU

ONT

36h 28m

2 stops

$988Multiple Airlines

Sun, May 17 - Tue, Jun 2

Iberia flights from Ontario to Southeast Europe

Our best Iberia deals on Ontario to Southeast Europe flight tickets

Iberia

Sep 1

ONT2:22 pmOntario

35h 23m

1 stop

ATH11:45 amAthens Eleftherios V.

Sep 9

ATH6:55 amAthens Eleftherios V.

26h 11m

2 stops

ONT11:06 pmOntario

$842

Iberia

Apr 12

ONT7:30 amOntario

26h 40m

2 stops

DBV7:10 pmDubrovnik

Apr 19

DBV7:50 pmDubrovnik

36h 56m

2 stops

ONT11:46 pmOntario

$1,205

Iberia

Apr 11

ONT7:30 amOntario

26h 30m

2 stops

DBV7:00 pmDubrovnik

Apr 19

DBV7:50 pmDubrovnik

36h 56m

2 stops

ONT11:46 pmOntario

$1,380

KLM flights from Ontario to Southeast Europe

Our best KLM deals on Ontario to Southeast Europe flight tickets

KLM

May 5

ONT10:15 pmOntario

26h 45m

1 stop

ATH11:00 amAthens Eleftherios V.

May 14

ATH9:45 amAthens Eleftherios V.

18h 51m

1 stop

ONT6:36 pmOntario

$843

KLM

May 5

ONT10:15 pmOntario

26h 45m

1 stop

ATH11:00 amAthens Eleftherios V.

May 14

ATH9:45 amAthens Eleftherios V.

18h 51m

1 stop

ONT6:36 pmOntario

$844

KLM

May 5

ONT10:15 pmOntario

26h 45m

1 stop

ATH11:00 amAthens Eleftherios V.

May 14

ATH10:05 amAthens Eleftherios V.

21h 43m

2 stops

ONT9:48 pmOntario

$848

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 5/2

6:59 pm-6:35 pm

2 stops37h 36m

Bucharest Otopeni Intl

Wed 5/13

6:05 am-9:41 am

2 stops37h 36m

$721

Quickest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Mon 5/4

11:53 am-5:20 pm

2 stops19h 27m

Bucharest Otopeni Intl

Tue 5/12

7:05 am-5:10 pm

2 stops20h 05m

$723

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 5/3

10:15 pm-12:45 pm

2 stops52h 30m

Bucharest Otopeni Intl

Mon 5/11

2:00 pm-5:10 pm

2 stops37h 10m

$726

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 5/2

6:59 pm-6:35 pm

2 stops37h 36m

Bucharest Otopeni Intl

Mon 5/11

12:45 pm-5:52 pm

2 stops39h 07m

$733

OntarioDubrovnik

ONT - DBV

ONTDBV

Ontario

Wed 8/5

4:54 pm-3:30 pm

2 stops37h 36m

Dubrovnik

Wed 8/19

9:00 pm-9:08 pm

2 stops33h 08m

$792

OntarioZagreb

ONT - ZAG

ONTZAG

Ontario

Mon 8/17

12:35 pm-7:25 pm

2 stops21h 50m

Zagreb Franjo Tuđman

Mon 8/24

2:40 pm-9:08 pm

2 stops39h 28m

$801

OntarioAthens

ONT - ATH

ONTATH

Ontario

Sun 8/16

5:00 am-11:10 am

2 stops20h 10m

Athens Eleftherios V.

Wed 9/2

3:25 pm-12:38 pm

2 stops31h 13m

$808

OntarioDubrovnik

ONT - DBV

ONTDBV

Ontario

Mon 8/31

11:59 pm-6:55 pm

2 stops33h 56m

Dubrovnik

Wed 9/9

7:45 pm-11:06 pm

2 stops36h 21m

$808

OntarioAthens

ONT - ATH

ONTATH

Ontario

Tue 9/1

2:22 pm-11:45 am

1 stop35h 23m

Athens Eleftherios V.

Wed 9/9

6:55 am-11:06 pm

2 stops26h 11m

$842

OntarioSplit

ONT - SPU

ONTSPU

Ontario

Sun 5/17

11:59 pm-6:25 pm

2 stops33h 26m

Split

Tue 6/2

7:10 pm-10:38 pm

2 stops36h 28m

$988

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 Southeast Europe

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

Prices

Airlines

Can stopping save me money on Ontario to Southeast Europe flights?

No. A direct flight is the cheapest option for a flight between Ontario to Southeast Europe.

Cheap Ontario to Southeast Europe flight deals and tips

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

Fastest flight time	15h 57m
Direct flights	None

The fastest flight from Ontario to Southeast Europe takes 15h 57m

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

Search flight deals

Frequently asked questions about flying from Ontario to Southeast Europe

When did momondo last update prices for flights from Ontario Airport to Southeast Europe?
Prices for flights from Ontario Airport to Southeast Europe were last updated today.
How many operators does momondo search for flights from Ontario Airport to Southeast Europe?
The number of operators available for flights from Ontario Airport to Southeast Europe is 1 as of April 2026.
How old do you have to be to fly from Ontario Airport to Southeast Europe?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Southeast Europe.
What documentation or ID do you need to fly to Southeast Europe?
The required travel and health documents for your Southeast Europe trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Europe. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ontario to Southeast Europe?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to Southeast Europe is Airbus A321neo (14.69% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (11.37%), Boeing 737 MAX 8 (11.33%), and Airbus A320neo (10.54%).

Best airlines flying from Ontario to Southeast Europe

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $539	Free Cancellation	Rating 7.4 9,545 reviews		Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Ontario to Southeast Europe flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Southeast Europe that suits you.

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

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

How can momondo help me find flights from Ontario to Southeast Europe?

momondo helps you find the best flight between Ontario and Southeast Europe by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Southeast Europe from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.