What airlines fly to Europe?

Iberia, British Airways and Delta 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 34% of people opting to fly with this airline when traveling to Europe. Keep in mind that there are 33 different airlines that fly to Europe on a routine basis, so you have a few additional options to choose from.

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

Delta, KLM, and Air Canada are the most popular carriers operating from Ontario to Europe

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 6 as of August 2025.

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.

$273 Cheap Flights from Ontario to Europe in 2025

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Find the cheapest flights from Ontario to Europe

Round-trip

One-way

Last minute

Cheap round-trip flights

7:05 am - 10:30 amONT-FCO

18h 25m1 stop

10:05 am - 7:37 pmFCO-ONT

18h 32m1 stop

$475Delta

Find Deal

Wed, Nov 12 - Wed, Nov 26

6:00 am - 7:55 amONT-FCO

16h 55m2 stops

12:40 pm - 11:04 pmFCO-ONT

19h 24m1 stop

$479KLM

Find Deal

Tue, Nov 11 - Tue, Nov 25

7:00 am - 1:05 pmONT-MXP

22h 05m1 stop

1:05 pm - 10:31 pmMXP-ONT

42h 26m2 stops

$488United Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 14

5:05 am - 1:05 pmONT-MXP

24h 00m2 stops

1:05 pm - 10:31 pmMXP-ONT

42h 26m2 stops

$492United Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 14

10:57 am - 6:10 pmONT-FCO

23h 13m2 stops

11:35 am - 10:23 pmFCO-ONT

19h 48m1 stop

$508Iberia

Find Deal

Sun, Oct 26 - Thu, Nov 13

12:48 pm - 2:25 pmONT-MAD

16h 37m1 stop

4:00 pm - 11:58 amMAD-ONT

28h 58m1 stop

$517American Airlines

Find Deal

Mon, Oct 6 - Wed, Oct 22

7:00 am - 12:40 pmONT-FCO

20h 40m2 stops

4:20 pm - 9:34 amFCO-ONT

26h 14m2 stops

$517Iberia

Find Deal

Tue, Dec 2 - Mon, Dec 8

7:00 am - 9:25 amONT-MAD

17h 25m1 stop

12:55 am - 2:02 pmMAD-ONT

22h 07m1 stop

$557British Airways

Find Deal

Tue, Nov 4 - Mon, Nov 10

10:54 am - 9:05 amONT-MAD

13h 11m1 stop

12:40 pm - 7:03 pmMAD-ONT

15h 23m1 stop

$570British Airways

Find Deal

Wed, Oct 1 - Wed, Oct 15

12:48 pm - 3:55 pmONT-FCO

18h 07m2 stops

7:20 am - 6:42 pmFCO-ONT

20h 22m2 stops

$591American Airlines

Find Deal

Thu, Oct 16 - Thu, Oct 23

American Airlines flights from Ontario to Europe

Our best American Airlines deals on Ontario to Europe flight tickets

American Airlines

Oct 6

ONT12:48 pmOntario

16h 37m

1 stop

MAD2:25 pmMadrid Barajas

Oct 22

MAD4:00 pmMadrid Barajas

28h 58m

1 stop

ONT11:58 amOntario

$517

Find similar

American Airlines

Oct 16

ONT12:48 pmOntario

18h 07m

2 stops

FCO3:55 pmRome Fiumicino

Oct 23

FCO7:20 amRome Fiumicino

20h 22m

2 stops

ONT6:42 pmOntario

$591

Find similar

American Airlines

Oct 21

ONT4:49 pmOntario

12h 01m

1 stop

LHR12:50 pmLondon Heathrow

Oct 28

LHR2:55 pmLondon Heathrow

14h 47m

1 stop

ONT10:42 pmOntario

$647

Find similar

British Airways flights from Ontario to Europe

Our best British Airways deals on Ontario to Europe flight tickets

British Airways

Nov 4

ONT7:00 amOntario

17h 25m

1 stop

MAD9:25 amMadrid Barajas

Nov 10

MAD12:55 amMadrid Barajas

22h 07m

1 stop

ONT2:02 pmOntario

$557

Find similar

British Airways

Oct 1

ONT10:54 amOntario

13h 11m

1 stop

MAD9:05 amMadrid Barajas

Oct 15

MAD12:40 pmMadrid Barajas

15h 23m

1 stop

ONT7:03 pmOntario

$570

Find similar

British Airways

Sep 29

ONT10:53 amOntario

13h 12m

1 stop

MAD9:05 amMadrid Barajas

Oct 15

MAD4:00 pmMadrid Barajas

15h 42m

1 stop

ONT10:42 pmOntario

$586

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 11/12

7:05 am-10:30 am

1 stop18h 25m

Rome Fiumicino

Wed 11/26

10:05 am-7:37 pm

1 stop18h 32m

$475

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 11/11

6:00 am-7:55 am

2 stops16h 55m

Rome Fiumicino

Tue 11/25

12:40 pm-11:04 pm

1 stop19h 24m

$479

OntarioMilan

ONT - MXP

ONTMXP

Ontario

Fri 10/31

7:00 am-1:05 pm

1 stop22h 05m

Milan Malpensa

Fri 11/14

1:05 pm-10:31 pm

2 stops42h 26m

$488

OntarioMilan

ONT - MXP

ONTMXP

Ontario

Fri 10/31

5:05 am-1:05 pm

2 stops24h 00m

Milan Malpensa

Fri 11/14

1:05 pm-10:31 pm

2 stops42h 26m

$492

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 10/26

10:57 am-6:10 pm

2 stops23h 13m

Rome Fiumicino

Thu 11/13

11:35 am-10:23 pm

1 stop19h 48m

$508

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 10/6

12:48 pm-2:25 pm

1 stop16h 37m

Madrid Barajas

Wed 10/22

4:00 pm-11:58 am

1 stop28h 58m

$517

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 12/2

7:00 am-12:40 pm

2 stops20h 40m

Rome Fiumicino

Mon 12/8

4:20 pm-9:34 am

2 stops26h 14m

$517

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 11/4

7:00 am-9:25 am

1 stop17h 25m

Madrid Barajas

Mon 11/10

12:55 am-2:02 pm

1 stop22h 07m

$557

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 10/1

10:54 am-9:05 am

1 stop13h 11m

Madrid Barajas

Wed 10/15

12:40 pm-7:03 pm

1 stop15h 23m

$570

OntarioRome

ONT - FCO

ONTFCO

Ontario

Thu 10/16

12:48 pm-3:55 pm

2 stops18h 07m

Rome Fiumicino

Thu 10/23

7:20 am-6:42 pm

2 stops20h 22m

$591

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 September. Flight prices, which tend to average around $666, 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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $678.

What is the cheapest day to depart on your flight to Europe?

The cheapest day to depart from Ontario to Europe is on a Wednesday. Travelers who choose to depart for Europe on a Wednesday will often find tickets for as low as $668. Flights from Ontario to Europe on a Saturday will generally be more expensive and average around $1,112. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Europe?

According to our data, the cheapest time of day to fly to Europe is in the evening. momondo users have found flights departing from Ontario to Europe in the evening for as low as $662. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $871. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Europe?

You are more likely to see cheaper flights to Europe from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Europe for around $849 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Europe from Ontario for as low as $674 on momondo.

Can stopping save me money on Ontario to Europe flights?

You could potentially save up to 4% 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

Direct flights	None

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 6 as of August 2025.
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 $489	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $492	Free Cancellation	Rating 7.4 8,943 reviews	Search United Airlines flights
Iberia	PriceFrom $496	Free Cancellation	Rating 7.0 2,891 reviews	Search Iberia flights
British Airways	PriceFrom $544	Free Cancellation	Rating 6.7 7,309 reviews	Search British Airways flights
Delta	PriceFrom $572	Free Cancellation	Rating 7.9 7,979 reviews	Search Delta flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.8 1,387 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.