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

United Airlines, Delta, and Icelandair are the most popular carriers operating from Ontario to Europe

What airlines fly to Europe?

Iberia, British Airways and Scandinavian Airlines are the top three most popular airlines that fly to Europe from Ontario according to our data. Iberia is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Europe. Keep in mind that there are 36 different airlines that fly to 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 Europe?

Prices for flights from Ontario Airport to Europe are updated daily.

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

The number of operators available for flights from Ontario Airport to Europe is 7 as of March 2026.

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

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

The travel and health documents required for your trip to Europe 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 Europe. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$310 Cheap Flights from Ontario to Europe in 2026

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Find the cheapest flights from Ontario to Europe

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 1:20 pm

ONT

FCO

22h 20m

1 stop

11:30 am - 6:19 pm

FCO

ONT

39h 49m

2 stops

$657United Airlines

Wed, Aug 5 - Thu, Aug 20

6:30 am - 1:15 pm

ONT

FCO

21h 45m

2 stops

11:30 am - 6:19 pm

FCO

ONT

39h 49m

2 stops

$661United Airlines

Wed, Aug 5 - Thu, Aug 20

12:39 pm - 12:05 pm

ONT

FCO

14h 26m

1 stop

1:10 pm - 9:08 pm

FCO

ONT

16h 58m

1 stop

$663British Airways

Tue, Aug 4 - Wed, Aug 26

6:20 am - 10:10 am

ONT

FCO

18h 50m

1 stop

6:30 am - 4:14 pm

FCO

ONT

18h 44m

2 stops

$676Delta

Wed, Aug 5 - Thu, Aug 20

7:00 am - 10:50 am

ONT

FCO

18h 50m

1 stop

12:20 pm - 10:40 pm

FCO

ONT

19h 20m

1 stop

$677Delta

Sun, Aug 16 - Thu, Aug 27

4:59 pm - 9:40 am

ONT

MAD

31h 41m

2 stops

9:00 pm - 5:48 pm

MAD

ONT

29h 48m

2 stops

$708British Airways

Sun, Sep 20 - Wed, Sep 30

7:30 am - 10:00 am

ONT

CDG

17h 30m

1 stop

12:45 pm - 11:46 pm

CDG

ONT

20h 01m

2 stops

$731Iberia

Wed, Apr 8 - Wed, Apr 15

10:59 am - 10:00 am

ONT

CDG

14h 01m

1 stop

12:45 pm - 11:46 pm

CDG

ONT

20h 01m

2 stops

$732Iberia

Wed, Apr 8 - Wed, Apr 15

12:19 pm - 5:30 pm

ONT

CDG

20h 11m

2 stops

8:10 am - 6:24 pm

CDG

ONT

19h 14m

2 stops

$736American Airlines

Tue, Apr 21 - Tue, Apr 28

10:59 am - 10:00 am

ONT

CDG

14h 01m

1 stop

12:15 pm - 9:07 pm

CDG

ONT

17h 52m

1 stop

$742American Airlines

Wed, Apr 8 - Wed, Apr 15

British Airways flights from Ontario to Europe

Our best British Airways deals on Ontario to Europe flight tickets

British Airways

Aug 4

ONT12:39 pmOntario

14h 26m

1 stop

FCO12:05 pmRome Fiumicino

Aug 26

FCO1:10 pmRome Fiumicino

16h 58m

1 stop

ONT9:08 pmOntario

$663

British Airways

Apr 7

ONT7:30 amOntario

19h 35m

1 stop

FCO12:05 pmRome Fiumicino

Apr 16

FCO1:10 pmRome Fiumicino

18h 26m

1 stop

ONT10:36 pmOntario

$702

British Airways

Aug 16

ONT4:54 pmOntario

32h 11m

2 stops

FCO10:05 amRome Fiumicino

Aug 26

FCO1:10 pmRome Fiumicino

16h 58m

1 stop

ONT9:08 pmOntario

$703

KLM flights from Ontario to Europe

Our best KLM deals on Ontario to Europe flight tickets

KLM

Apr 22

ONT12:49 pmOntario

14h 26m

1 stop

MAD12:15 pmMadrid Barajas

Apr 29

MAD12:45 pmMadrid Barajas

17h 15m

1 stop

ONT9:00 pmOntario

$685

KLM

Apr 14

ONT12:49 pmOntario

14h 26m

1 stop

MAD12:15 pmMadrid Barajas

Apr 29

MAD12:45 pmMadrid Barajas

17h 15m

1 stop

ONT9:00 pmOntario

$694

KLM

Apr 22

ONT12:49 pmOntario

14h 26m

1 stop

MAD12:15 pmMadrid Barajas

Apr 29

MAD12:45 pmMadrid Barajas

17h 15m

1 stop

ONT9:00 pmOntario

$695

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 8/5

6:00 am-1:20 pm

1 stop22h 20m

Rome Fiumicino

Thu 8/20

11:30 am-6:19 pm

2 stops39h 49m

$657

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 8/5

6:30 am-1:15 pm

2 stops21h 45m

Rome Fiumicino

Thu 8/20

11:30 am-6:19 pm

2 stops39h 49m

$661

Quickest round-trip

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 8/4

12:39 pm-12:05 pm

1 stop14h 26m

Rome Fiumicino

Wed 8/26

1:10 pm-9:08 pm

1 stop16h 58m

$663

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 8/5

6:20 am-10:10 am

1 stop18h 50m

Rome Fiumicino

Thu 8/20

6:30 am-4:14 pm

2 stops18h 44m

$676

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 8/16

7:00 am-10:50 am

1 stop18h 50m

Rome Fiumicino

Thu 8/27

12:20 pm-10:40 pm

1 stop19h 20m

$677

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 9/20

4:59 pm-9:40 am

2 stops31h 41m

Madrid Barajas

Wed 9/30

9:00 pm-5:48 pm

2 stops29h 48m

$708

OntarioParis

ONT - CDG

ONTCDG

Ontario

Wed 4/8

7:30 am-10:00 am

1 stop17h 30m

Paris Charles de Gaulle

Wed 4/15

12:45 pm-11:46 pm

2 stops20h 01m

$731

OntarioParis

ONT - CDG

ONTCDG

Ontario

Wed 4/8

10:59 am-10:00 am

1 stop14h 01m

Paris Charles de Gaulle

Wed 4/15

12:45 pm-11:46 pm

2 stops20h 01m

$732

OntarioParis

ONT - CDG

ONTCDG

Ontario

Tue 4/21

12:19 pm-5:30 pm

2 stops20h 11m

Paris Charles de Gaulle

Tue 4/28

8:10 am-6:24 pm

2 stops19h 14m

$736

OntarioParis

ONT - CDG

ONTCDG

Ontario

Wed 4/8

10:59 am-10:00 am

1 stop14h 01m

Paris Charles de Gaulle

Wed 4/15

12:15 pm-9:07 pm

1 stop17h 52m

$742

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 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

What is the cheapest month to fly to Europe?

The cheapest month to fly to Europe from Ontario is in March. Flight prices, which tend to average around $652, are often lower during this time because this is during the off-season. If you aren’t able to travel to Europe during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $653.

Can stopping save me money on Ontario to Europe flights?

You could potentially save up to 50% on your flight if you consider stops on a Ontario to Europe flight.

Cheap Ontario to Europe flight deals and tips

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

Fastest flight time	11h 25m
Direct flights	None

The fastest flight from Ontario to Europe takes 11h 25m

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

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Europe?
Prices for flights from Ontario Airport to Europe are updated daily.
How many operators does momondo search for flights from Ontario Airport to Europe?
The number of operators available for flights from Ontario Airport to Europe is 7 as of March 2026.
How old do you have to be to fly from Ontario Airport to 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 Europe.
What documentation or ID do you need to fly to Europe?
The travel and health documents required for your trip to Europe 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 Europe. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Europe

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.1 11,493 reviews	Search American Airlines flights
Delta	PriceFrom $444	Free Cancellation	Rating 7.9 8,330 reviews	Search Delta flights
Iberia	PriceFrom $497	Free Cancellation	Rating 7.0 3,155 reviews	Search Iberia flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 7,821 reviews	Search British Airways flights
United Airlines	PriceFrom $515	Free Cancellation	Rating 7.4 9,483 reviews	Search United Airlines flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.8 1,478 reviews	Search KLM flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Europe for you.

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

Flights from Ontario to Europe with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Ontario to Europe 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 Europe right now. Can momondo alert me if prices change?

Price alerts on flights to 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.