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

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

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 31% of people opting to fly with this airline when traveling to Europe. Keep in mind that there are 35 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 6 as of February 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.

$226 Cheap Flights from Ontario to Europe in 2026

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

Enter your travel dates to find the best prices.

7:00 am - 7:55 am

ONT

FCO

15h 55m

1 stop

11:30 am - 10:26 pm

FCO

ONT

43h 56m

2 stops

$488United Airlines

Tue, Aug 18 - Thu, Aug 27

5:00 am - 9:15 am

ONT

FCO

19h 15m

2 stops

11:30 am - 11:06 pm

FCO

ONT

44h 36m

2 stops

$492United Airlines

Tue, Aug 18 - Thu, Aug 27

3:19 pm - 6:30 pm

ONT

MAD

19h 11m

2 stops

10:25 am - 8:27 pm

MAD

ONT

19h 02m

1 stop

$512British Airways

Tue, Mar 24 - Tue, Apr 21

12:19 pm - 9:40 am

ONT

MAD

36h 21m

2 stops

5:30 pm - 4:22 pm

MAD

ONT

31h 52m

2 stops

$518British Airways

Sun, Apr 12 - Wed, Apr 22

6:00 am - 6:15 am

ONT

MAD

15h 15m

1 stop

12:55 am - 10:06 am

MAD

ONT

17h 11m

1 stop

$525Iberia

Tue, Mar 3 - Mon, Mar 9

12:49 pm - 5:20 pm

ONT

CDG

19h 31m

2 stops

8:55 am - 9:00 pm

CDG

ONT

21h 05m

2 stops

$558Delta

Wed, Apr 29 - Wed, May 6

1:20 pm - 1:50 pm

ONT

CDG

16h 30m

2 stops

2:20 pm - 11:47 am

CDG

ONT

29h 27m

2 stops

$564Delta

Wed, Mar 18 - Wed, Mar 25

2:08 pm - 2:25 pm

ONT

LHR

16h 17m

1 stop

6:10 am - 8:54 pm

LHR

ONT

22h 44m

2 stops

$648Iberia

Tue, Apr 14 - Tue, Apr 28

10:56 am - 6:50 pm

ONT

ATH

22h 54m

2 stops

11:00 am - 11:59 pm

ATH

ONT

22h 59m

2 stops

$656American Airlines

Sat, Mar 21 - Fri, Apr 3

7:00 am - 7:15 am

ONT

FRA

15h 15m

1 stop

10:50 am - 7:45 pm

FRA

ONT

16h 55m

1 stop

$914American Airlines

Tue, Mar 3 - Tue, Mar 17

Iberia flights from Ontario to Europe

Our best Iberia deals on Ontario to Europe flight tickets

Iberia

Mar 3

ONT6:00 amOntario

15h 15m

1 stop

MAD6:15 amMadrid Barajas

Mar 9

MAD12:55 amMadrid Barajas

17h 11m

1 stop

ONT10:06 amOntario

$525

Iberia

Mar 10

ONT7:00 amOntario

15h 15m

1 stop

MAD6:15 amMadrid Barajas

Apr 20

MAD3:55 pmMadrid Barajas

16h 51m

1 stop

ONT11:46 pmOntario

$575

Iberia

Apr 13

ONT2:08 pmOntario

18h 22m

2 stops

MAD5:30 pmMadrid Barajas

Apr 27

MAD3:55 pmMadrid Barajas

16h 51m

1 stop

ONT11:46 pmOntario

$598

British Airways flights from Ontario to Europe

Our best British Airways deals on Ontario to Europe flight tickets

British Airways

Mar 24

ONT3:19 pmOntario

19h 11m

2 stops

MAD6:30 pmMadrid Barajas

Apr 21

MAD10:25 amMadrid Barajas

19h 02m

1 stop

ONT8:27 pmOntario

$512

British Airways

Apr 12

ONT12:19 pmOntario

36h 21m

2 stops

MAD9:40 amMadrid Barajas

Apr 28

MAD9:00 pmMadrid Barajas

28h 22m

2 stops

ONT4:22 pmOntario

$518

British Airways

Apr 12

ONT11:59 pmOntario

24h 06m

1 stop

MAD9:05 amMadrid Barajas

Apr 22

MAD10:25 amMadrid Barajas

19h 42m

1 stop

ONT9:07 pmOntario

$522

Fly from

Fly to

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 8/18

7:00 am-7:55 am

1 stop15h 55m

Rome Fiumicino

Thu 8/27

11:30 am-10:26 pm

2 stops43h 56m

$488

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 8/18

5:00 am-9:15 am

2 stops19h 15m

Rome Fiumicino

Thu 8/27

11:30 am-11:06 pm

2 stops44h 36m

$492

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 3/24

3:19 pm-6:30 pm

2 stops19h 11m

Madrid Barajas

Tue 4/21

10:25 am-8:27 pm

1 stop19h 02m

$512

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 4/12

12:19 pm-9:40 am

2 stops36h 21m

Madrid Barajas

Wed 4/22

5:30 pm-4:22 pm

2 stops31h 52m

$518

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 3/3

6:00 am-6:15 am

1 stop15h 15m

Madrid Barajas

Mon 3/9

12:55 am-10:06 am

1 stop17h 11m

$525

OntarioParis

ONT - CDG

ONTCDG

Ontario

Wed 4/29

12:49 pm-5:20 pm

2 stops19h 31m

Paris Charles de Gaulle

Wed 5/6

8:55 am-9:00 pm

2 stops21h 05m

$558

OntarioParis

ONT - CDG

ONTCDG

Ontario

Wed 3/18

1:20 pm-1:50 pm

2 stops16h 30m

Paris Charles de Gaulle

Wed 3/25

2:20 pm-11:47 am

2 stops29h 27m

$564

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Tue 4/14

2:08 pm-2:25 pm

1 stop16h 17m

London Heathrow

Tue 4/28

6:10 am-8:54 pm

2 stops22h 44m

$648

OntarioAthens

ONT - ATH

ONTATH

Ontario

Sat 3/21

10:56 am-6:50 pm

2 stops22h 54m

Athens Eleftherios V.

Fri 4/3

11:00 am-11:59 pm

2 stops22h 59m

$656

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 3/3

7:00 am-7:15 am

1 stop15h 15m

Frankfurt am Main

Tue 3/17

10:50 am-7:45 pm

1 stop16h 55m

$914

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 February. Flight prices, which tend to average around $654, 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 February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $683.

Can stopping save me money on Ontario to Europe flights?

You could potentially save up to 27% 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	12h 00m
Direct flights	None

The fastest flight from Ontario to Europe takes 12h 00m

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 February 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 7.2 11,321 reviews	Search American Airlines flights
Delta	PriceFrom $444	Free Cancellation	Rating 7.9 8,215 reviews	Search Delta flights
Iberia	PriceFrom $497	Free Cancellation	Rating 7.0 3,118 reviews	Search Iberia flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 7,755 reviews	Search British Airways flights
United Airlines	PriceFrom $515	Free Cancellation	Rating 7.4 9,325 reviews	Search United Airlines flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.7 1,458 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.