What airlines fly to Europe?

British Airways, Iberia and Delta are the top three most popular airlines that fly to Europe from Ontario according to our data. British Airways 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 34 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?

JetBlue, British Airways, and KLM 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 7 as of September 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.

$280 Cheap Flights from Ontario to Europe in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ontario to Europe

Round-trip

One-way

Last minute

Cheap round-trip flights

11:55 pm - 6:15 amONT-MAD

21h 20m1 stop

1:15 pm - 11:43 pmMAD-ONT

18h 28m2 stops

$443American Airlines

Find Deal

Sat, Feb 28 - Tue, Mar 10

8:43 am - 9:25 amONT-MAD

15h 42m1 stop

1:00 pm - 11:43 pmMAD-ONT

19h 43m1 stop

$454Iberia

Find Deal

Mon, Feb 9 - Wed, Feb 18

11:55 pm - 9:25 amONT-MAD

24h 30m1 stop

1:00 pm - 10:02 pmMAD-ONT

17h 02m1 stop

$459British Airways

Find Deal

Sat, Feb 28 - Tue, Mar 10

6:00 am - 3:35 pmONT-MAD

24h 35m2 stops

12:40 pm - 11:08 amMAD-ONT

31h 28m2 stops

$462Delta

Find Deal

Sun, Oct 12 - Wed, Oct 22

10:57 am - 9:25 amONT-MAD

13h 28m1 stop

1:00 pm - 8:24 pmMAD-ONT

16h 24m1 stop

$468British Airways

Find Deal

Mon, Feb 9 - Tue, Feb 17

11:36 am - 8:45 amONT-DUB

13h 09m1 stop

9:45 am - 7:19 pmDUB-ONT

17h 34m1 stop

$473Delta

Find Deal

Mon, Oct 20 - Wed, Nov 5

11:36 am - 8:45 amONT-DUB

13h 09m1 stop

9:45 am - 7:19 pmDUB-ONT

17h 34m1 stop

$475KLM

Find Deal

Mon, Oct 20 - Wed, Nov 5

11:36 am - 8:45 amONT-DUB

13h 09m1 stop

9:45 am - 7:19 pmDUB-ONT

17h 34m1 stop

$481KLM

Find Deal

Mon, Oct 20 - Wed, Nov 5

5:05 am - 9:55 amONT-DUB

21h 50m2 stops

10:40 am - 10:31 pmDUB-ONT

19h 51m1 stop

$488United Airlines

Find Deal

Wed, Oct 29 - Thu, Nov 6

7:00 am - 7:45 amONT-FCO

15h 45m1 stop

1:05 pm - 8:17 pmFCO-ONT

40h 12m2 stops

$490United Airlines

Find Deal

Wed, Feb 25 - Tue, Mar 3

American Airlines flights from Ontario to Europe

Our best American Airlines deals on Ontario to Europe flight tickets

American Airlines

Feb 28

ONT11:55 pmOntario

21h 20m

1 stop

MAD6:15 amMadrid Barajas

Mar 10

MAD1:15 pmMadrid Barajas

18h 28m

2 stops

ONT11:43 pmOntario

$443

Find similar

American Airlines

Feb 25

ONT6:47 amOntario

20h 38m

2 stops

FCO12:25 pmRome Fiumicino

Mar 3

FCO7:30 amRome Fiumicino

21h 54m

2 stops

ONT8:24 pmOntario

$468

Find similar

American Airlines

Feb 25

ONT6:47 amOntario

20h 38m

2 stops

FCO12:25 pmRome Fiumicino

Mar 3

FCO12:20 pmRome Fiumicino

20h 23m

2 stops

ONT11:43 pmOntario

$487

Find similar

Iberia flights from Ontario to Europe

Our best Iberia deals on Ontario to Europe flight tickets

Iberia

Feb 9

ONT8:43 amOntario

15h 42m

1 stop

MAD9:25 amMadrid Barajas

Feb 18

MAD1:00 pmMadrid Barajas

19h 43m

1 stop

ONT11:43 pmOntario

$454

Find similar

Iberia

Jan 6

ONT10:57 amOntario

13h 28m

1 stop

MAD9:25 amMadrid Barajas

Jan 13

MAD6:40 amMadrid Barajas

24h 22m

2 stops

ONT10:02 pmOntario

$491

Find similar

Iberia

Mar 3

ONT6:00 amOntario

15h 15m

1 stop

MAD6:15 amMadrid Barajas

Mar 16

MAD12:55 amMadrid Barajas

16h 34m

1 stop

ONT9:29 amOntario

$503

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 2/28

11:55 pm-6:15 am

1 stop21h 20m

Madrid Barajas

Tue 3/10

1:15 pm-11:43 pm

2 stops18h 28m

$443

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/9

8:43 am-9:25 am

1 stop15h 42m

Madrid Barajas

Wed 2/18

1:00 pm-11:43 pm

1 stop19h 43m

$454

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 2/28

11:55 pm-9:25 am

1 stop24h 30m

Madrid Barajas

Tue 3/10

1:00 pm-10:02 pm

1 stop17h 02m

$459

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 10/12

6:00 am-3:35 pm

2 stops24h 35m

Madrid Barajas

Wed 10/22

12:40 pm-11:08 am

2 stops31h 28m

$462

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/9

10:57 am-9:25 am

1 stop13h 28m

Madrid Barajas

Tue 2/17

1:00 pm-8:24 pm

1 stop16h 24m

$468

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 10/20

11:36 am-8:45 am

1 stop13h 09m

Dublin

Wed 11/5

9:45 am-7:19 pm

1 stop17h 34m

$473

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 10/20

11:36 am-8:45 am

1 stop13h 09m

Dublin

Wed 11/5

9:45 am-7:19 pm

1 stop17h 34m

$475

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 10/20

11:36 am-8:45 am

1 stop13h 09m

Dublin

Wed 11/5

9:45 am-7:19 pm

1 stop17h 34m

$481

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 10/29

5:05 am-9:55 am

2 stops21h 50m

Dublin

Thu 11/6

10:40 am-10:31 pm

1 stop19h 51m

$488

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 2/25

7:00 am-7:45 am

1 stop15h 45m

Rome Fiumicino

Tue 3/3

1:05 pm-8:17 pm

2 stops40h 12m

$490

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 $846 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 8% 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 7 as of September 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
Virgin Atlantic	PriceFrom $469	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom $489	Free Cancellation	Rating 7.0 2,928 reviews	Search Iberia flights
British Airways	PriceFrom $489	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights
American Airlines	PriceFrom $504	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $504	Free Cancellation	Rating 7.4 8,936 reviews	Search United Airlines flights
Delta	PriceFrom $572	Free Cancellation	Rating 7.9 7,960 reviews	Search Delta flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.8 1,385 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.