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 33% 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?

American Airlines, British Airways, and Delta 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 November 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.

$232 Cheap Flights from Ontario to Europe in 2025/26

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Find the cheapest flights from Ontario to Europe

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 8:00 amONT-MAD

17h 00m2 stops

11:15 am - 9:07 pmMAD-ONT

18h 52m1 stop

$442Delta

Find Deal

Tue, Feb 3 - Tue, Feb 24

6:00 am - 8:00 amONT-MAD

17h 00m2 stops

10:00 am - 9:07 pmMAD-ONT

20h 07m2 stops

$443Delta

Find Deal

Tue, Feb 3 - Thu, Feb 26

11:59 pm - 9:25 amONT-MAD

24h 26m1 stop

1:00 pm - 10:31 pmMAD-ONT

18h 31m1 stop

$446British Airways

Find Deal

Mon, Feb 9 - Thu, Feb 19

5:00 am - 8:00 amONT-MAD

18h 00m2 stops

12:35 pm - 10:15 pmMAD-ONT

41h 40m2 stops

$482United Airlines

Find Deal

Wed, Mar 4 - Wed, Mar 11

5:05 am - 8:00 amONT-MAD

17h 55m2 stops

6:00 am - 8:58 pmMAD-ONT

23h 58m2 stops

$487United Airlines

Find Deal

Mon, Feb 2 - Tue, Feb 10

7:16 am - 9:25 amONT-MAD

17h 09m1 stop

1:00 pm - 10:48 pmMAD-ONT

18h 48m1 stop

$488British Airways

Find Deal

Wed, Feb 4 - Sun, Feb 8

10:34 pm - 5:45 amONT-MAD

22h 11m1 stop

12:00 pm - 10:28 pmMAD-ONT

19h 28m2 stops

$492American Airlines

Find Deal

Tue, Dec 2 - Sat, Dec 13

7:10 am - 9:25 amONT-MAD

17h 15m1 stop

9:35 pm - 10:48 pmMAD-ONT

34h 13m2 stops

$499Iberia

Find Deal

Wed, Dec 31 - Thu, Jan 8

7:10 am - 12:40 pmONT-MAD

20h 30m2 stops

9:35 pm - 2:18 pmMAD-ONT

49h 43m2 stops

$500Iberia

Find Deal

Wed, Dec 31 - Thu, Jan 8

7:16 am - 6:15 amONT-MAD

13h 59m1 stop

1:00 pm - 9:28 pmMAD-ONT

17h 28m1 stop

$538American Airlines

Find Deal

Sun, Feb 8 - Sun, Feb 22

British Airways flights from Ontario to Europe

Our best British Airways deals on Ontario to Europe flight tickets

British Airways

Feb 9

ONT11:59 pmOntario

24h 26m

1 stop

MAD9:25 amMadrid Barajas

Feb 19

MAD1:00 pmMadrid Barajas

18h 31m

1 stop

ONT10:31 pmOntario

$446

Find similar

British Airways

Feb 4

ONT7:16 amOntario

17h 09m

1 stop

MAD9:25 amMadrid Barajas

Feb 8

MAD1:00 pmMadrid Barajas

18h 48m

1 stop

ONT10:48 pmOntario

$488

Find similar

British Airways

Feb 19

ONT10:59 amOntario

13h 26m

1 stop

MAD9:25 amMadrid Barajas

Feb 26

MAD1:00 pmMadrid Barajas

19h 58m

1 stop

ONT11:58 pmOntario

$490

Find similar

United Airlines flights from Ontario to Europe

Our best United Airlines deals on Ontario to Europe flight tickets

United Airlines

Mar 4

ONT5:00 amOntario

18h 00m

2 stops

MAD8:00 amMadrid Barajas

Mar 11

MAD12:35 pmMadrid Barajas

41h 40m

2 stops

ONT10:15 pmOntario

$482

Find similar

United Airlines

Nov 11

ONT6:05 amOntario

18h 00m

2 stops

ATH10:05 amAthens Eleftherios V.

Nov 18

ATH1:10 pmAthens Eleftherios V.

43h 41m

3 stops

ONT10:51 pmOntario

$486

Find similar

United Airlines

Feb 2

ONT5:05 amOntario

17h 55m

2 stops

MAD8:00 amMadrid Barajas

Feb 10

MAD6:00 amMadrid Barajas

23h 58m

2 stops

ONT8:58 pmOntario

$487

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/3

6:00 am-8:00 am

2 stops17h 00m

Madrid Barajas

Tue 2/24

11:15 am-9:07 pm

1 stop18h 52m

$442

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/3

6:00 am-8:00 am

2 stops17h 00m

Madrid Barajas

Thu 2/26

10:00 am-9:07 pm

2 stops20h 07m

$443

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/9

11:59 pm-9:25 am

1 stop24h 26m

Madrid Barajas

Thu 2/19

1:00 pm-10:31 pm

1 stop18h 31m

$446

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 3/4

5:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

Wed 3/11

12:35 pm-10:15 pm

2 stops41h 40m

$482

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/2

5:05 am-8:00 am

2 stops17h 55m

Madrid Barajas

Tue 2/10

6:00 am-8:58 pm

2 stops23h 58m

$487

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 2/4

7:16 am-9:25 am

1 stop17h 09m

Madrid Barajas

Sun 2/8

1:00 pm-10:48 pm

1 stop18h 48m

$488

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 12/2

10:34 pm-5:45 am

1 stop22h 11m

Madrid Barajas

Sat 12/13

12:00 pm-10:28 pm

2 stops19h 28m

$492

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 12/31

7:10 am-9:25 am

1 stop17h 15m

Madrid Barajas

Thu 1/8

9:35 pm-10:48 pm

2 stops34h 13m

$499

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 12/31

7:10 am-12:40 pm

2 stops20h 30m

Madrid Barajas

Thu 1/8

9:35 pm-2:18 pm

2 stops49h 43m

$500

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 2/8

7:16 am-6:15 am

1 stop13h 59m

Madrid Barajas

Sun 2/22

1:00 pm-9:28 pm

1 stop17h 28m

$538

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 October. Flight prices, which tend to average around $678, 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 October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $684.

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 $860 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 $606 on momondo.

Can stopping save me money on Ontario to Europe flights?

You could potentially save up to 34% 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 November 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
Delta	PriceFrom $444	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
Iberia	PriceFrom $489	Free Cancellation	Rating 7.0 3,007 reviews	Search Iberia flights
British Airways	PriceFrom $489	Free Cancellation	Rating 6.7 7,496 reviews	Search British Airways flights
United Airlines	PriceFrom $515	Free Cancellation	Rating 7.4 9,004 reviews	Search United Airlines flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.7 1,405 reviews	Search KLM flights
American Airlines	PriceFrom $595	Free Cancellation	Rating 7.2 11,042 reviews	Search American Airlines 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.