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

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

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 32 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 July 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.

$311 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 - 9:35 amONT-MAD

17h 30m1 stop

10:05 am - 7:15 pmMAD-ONT

18h 10m1 stop

$402KLM

Find Deal

Sun, Aug 3 - Wed, Sep 17

6:00 am - 8:00 amONT-MAD

18h 00m2 stops

10:00 am - 10:41 pmMAD-ONT

21h 41m2 stops

$407Delta

Find Deal

Sun, Oct 26 - Thu, Nov 13

7:00 am - 9:45 amONT-DUB

18h 45m1 stop

9:20 am - 8:43 pmDUB-ONT

19h 23m2 stops

$460United Airlines

Find Deal

Mon, Aug 4 - Wed, Aug 20

7:00 am - 9:45 amONT-DUB

18h 45m1 stop

11:35 am - 10:30 pmDUB-ONT

18h 55m1 stop

$464United Airlines

Find Deal

Mon, Aug 4 - Wed, Aug 20

6:38 am - 10:45 amONT-FCO

19h 07m1 stop

11:00 am - 9:58 pmFCO-ONT

19h 58m1 stop

$475Iberia

Find Deal

Sun, Nov 16 - Thu, Dec 4

10:57 am - 10:15 amONT-DUB

16h 18m2 stops

11:30 am - 9:41 pmDUB-ONT

18h 11m2 stops

$486American Airlines

Find Deal

Wed, Oct 29 - Thu, Nov 6

12:46 pm - 9:45 amONT-DUB

12h 59m1 stop

12:40 pm - 10:48 pmDUB-ONT

18h 08m1 stop

$487Iberia

Find Deal

Mon, Aug 4 - Wed, Aug 20

1:10 pm - 2:20 pmONT-MAD

16h 10m2 stops

4:00 pm - 10:42 pmMAD-ONT

15h 42m1 stop

$502American Airlines

Find Deal

Wed, Oct 1 - Wed, Oct 15

10:57 am - 4:45 pmONT-ATH

19h 48m2 stops

8:20 pm - 8:11 pmATH-ONT

33h 51m2 stops

$516British Airways

Find Deal

Wed, Oct 22 - Wed, Nov 5

11:00 am - 10:45 amONT-FCO

14h 45m1 stop

5:50 pm - 8:11 pmFCO-ONT

35h 21m2 stops

$518British Airways

Find Deal

Sun, Nov 23 - Mon, Dec 1

Air Canada flights from Ontario to Europe

Our best Air Canada deals on Ontario to Europe flight tickets

Air Canada

Sep 22

ONT6:38 pmOntario

27h 02m

3 stops

MAD6:40 amMadrid Barajas

Sep 30

MAD12:45 pmMadrid Barajas

33h 06m

3 stops

ONT12:51 pmOntario

$488

Find similar

Air Canada

Aug 3

ONT5:05 amOntario

18h 15m

2 stops

MAD8:20 amMadrid Barajas

Sep 5

MAD12:45 pmMadrid Barajas

16h 58m

2 stops

ONT8:43 pmOntario

$504

Find similar

Air Canada

Oct 25

ONT1:15 pmOntario

33h 55m

2 stops

DUB7:10 amDublin

Nov 3

DUB9:00 amDublin

43h 17m

2 stops

ONT8:17 pmOntario

$512

Find similar

American Airlines flights from Ontario to Europe

Our best American Airlines deals on Ontario to Europe flight tickets

American Airlines

Oct 29

ONT10:57 amOntario

16h 18m

2 stops

DUB10:15 amDublin

Nov 6

DUB11:30 amDublin

18h 11m

2 stops

ONT9:41 pmOntario

$486

Find similar

American Airlines

Oct 1

ONT1:10 pmOntario

16h 10m

2 stops

MAD2:20 pmMadrid Barajas

Oct 15

MAD4:00 pmMadrid Barajas

15h 42m

1 stop

ONT10:42 pmOntario

$502

Find similar

American Airlines

Aug 4

ONT10:53 amOntario

13h 12m

1 stop

MAD9:05 amMadrid Barajas

Aug 20

MAD4:00 pmMadrid Barajas

15h 48m

1 stop

ONT10:48 pmOntario

$515

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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 $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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $674.

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 $839 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 $608 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

Best Price Found	$311
Fastest flight time	12h 01m
Direct flights	None
Airports in Europe	8 airports

The best one-way flight to Europe from Ontario in the past 72 hours is $311. The best round-trip flight deal from Ontario to Europe found on momondo in the last 72 hours is $402.

The fastest flight from Ontario to Europe takes 12h 01m

There are no direct flights from Ontario to Europe. Popular non-direct routes for this connection are Ontario Airport - Rome Fiumicino Airport, Ontario Airport - Paris Charles de Gaulle Airport and Ontario Airport - Barcelona-El Prat Airport.

There are 8 airports near Europe: Dublin (DUB), Madrid Barajas (MAD), Rome Fiumicino (FCO), Frankfurt am Main (FRA), Athens Eleftherios V. (ATH), Paris Charles de Gaulle (CDG), London Heathrow (LHR), Barcelona-El Prat (BCN)

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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 July 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 8.0 7,952 reviews	Search Delta flights
United Airlines	PriceFrom $492	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Iberia	PriceFrom $496	Free Cancellation	Rating 7.0 2,826 reviews	Search Iberia flights
American Airlines	PriceFrom $504	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $544	Free Cancellation	Rating 6.6 7,109 reviews	Search British Airways flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.8 1,372 reviews	Search KLM flights
Virgin Atlantic	PriceFrom $629	Free Cancellation	Rating 7.4 653 reviews	Search Virgin Atlantic 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.