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 32% 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?

British Airways, KLM, and United Airlines 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 January 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

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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.

4:45 pm - 8:05 pm

ONT

MAD

18h 20m2 stops

12:40 pm - 10:48 pm

MAD

ONT

19h 08m1 stop

$426British Airways

Wed, Feb 4 - Wed, Feb 11

4:45 pm - 6:30 pm

ONT

MAD

16h 45m2 stops

12:40 pm - 10:29 pm

MAD

ONT

18h 49m1 stop

$431British Airways

Wed, Feb 11 - Thu, Feb 19

12:39 pm - 12:15 pm

ONT

MAD

14h 36m1 stop

12:40 pm - 8:58 pm

MAD

ONT

17h 18m1 stop

$439Delta

Wed, Apr 15 - Fri, Apr 24

10:20 pm - 9:15 am

ONT

MAD

25h 55m1 stop

12:40 pm - 8:58 pm

MAD

ONT

17h 18m1 stop

$445Delta

Mon, Feb 23 - Fri, Apr 17

7:16 am - 2:30 pm

ONT

FCO

22h 14m2 stops

7:50 am - 10:48 pm

FCO

ONT

23h 58m3 stops

$478American Airlines

Sun, Feb 1 - Wed, Feb 11

6:00 am - 7:55 am

ONT

LIS

17h 55m2 stops

5:00 am - 5:43 pm

LIS

ONT

20h 43m2 stops

$499United Airlines

Thu, Feb 5 - Mon, Feb 9

2:08 pm - 2:50 pm

ONT

DUB

16h 42m2 stops

9:30 am - 8:54 pm

DUB

ONT

19h 24m1 stop

$501American Airlines

Wed, Apr 22 - Tue, Apr 28

6:00 am - 8:20 am

ONT

LIS

18h 20m2 stops

6:15 am - 8:36 pm

LIS

ONT

22h 21m2 stops

$502United Airlines

Tue, Apr 14 - Tue, Apr 21

7:16 am - 6:50 am

ONT

LHR

15h 34m1 stop

8:50 pm - 10:48 pm

LHR

ONT

33h 58m2 stops

$578Iberia

Wed, Jan 28 - Tue, Feb 3

6:00 am - 8:35 am

ONT

LHR

18h 35m1 stop

8:50 pm - 10:48 pm

LHR

ONT

33h 58m2 stops

$579Iberia

Sun, Jan 18 - Tue, Feb 3

United Airlines flights from Ontario to Europe

Our best United Airlines deals on Ontario to Europe flight tickets

United Airlines

Mar 10

ONT5:15 amOntario

17h 45m

2 stops

MAD7:00 amMadrid Barajas

Mar 17

MAD9:05 amMadrid Barajas

21h 52m

2 stops

ONT10:57 pmOntario

$493

United Airlines

Feb 5

ONT6:00 amOntario

17h 55m

2 stops

LIS7:55 amLisbon Humberto Delgado

Feb 9

LIS5:00 amLisbon Humberto Delgado

20h 43m

2 stops

ONT5:43 pmOntario

$499

United Airlines

Apr 14

ONT6:00 amOntario

18h 20m

2 stops

LIS8:20 amLisbon Humberto Delgado

Apr 21

LIS6:15 amLisbon Humberto Delgado

22h 21m

2 stops

ONT8:36 pmOntario

$502

KLM flights from Ontario to Europe

Our best KLM deals on Ontario to Europe flight tickets

KLM

Jan 20

ONT10:30 pmOntario

24h 30m

2 stops

MAD8:00 amMadrid Barajas

Jan 29

MAD10:00 amMadrid Barajas

20h 05m

2 stops

ONT9:05 pmOntario

$444

KLM

Feb 7

ONT10:30 pmOntario

24h 30m

2 stops

MAD8:00 amMadrid Barajas

Feb 15

MAD10:00 amMadrid Barajas

20h 05m

2 stops

ONT9:05 pmOntario

$494

KLM

Mar 2

ONT1:15 pmOntario

34h 30m

1 stop

DUB7:45 amDublin

Mar 11

DUB5:55 amDublin

22h 09m

2 stops

ONT9:04 pmOntario

$510

Fly from

Fly to

Route

Depart

Return

Price

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 2/4

4:45 pm-8:05 pm

2 stops18h 20m

Madrid Barajas

Wed 2/11

12:40 pm-10:48 pm

1 stop19h 08m

$426

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 2/11

4:45 pm-6:30 pm

2 stops16h 45m

Madrid Barajas

Thu 2/19

12:40 pm-10:29 pm

1 stop18h 49m

$431

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/15

12:39 pm-12:15 pm

1 stop14h 36m

Madrid Barajas

Fri 4/24

12:40 pm-8:58 pm

1 stop17h 18m

$439

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/23

10:20 pm-9:15 am

1 stop25h 55m

Madrid Barajas

Fri 4/17

12:40 pm-8:58 pm

1 stop17h 18m

$445

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 2/1

7:16 am-2:30 pm

2 stops22h 14m

Rome Fiumicino

Wed 2/11

7:50 am-10:48 pm

3 stops23h 58m

$478

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Thu 2/5

6:00 am-7:55 am

2 stops17h 55m

Lisbon Humberto Delgado

Mon 2/9

5:00 am-5:43 pm

2 stops20h 43m

$499

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 4/22

2:08 pm-2:50 pm

2 stops16h 42m

Dublin

Tue 4/28

9:30 am-8:54 pm

1 stop19h 24m

$501

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 4/14

6:00 am-8:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Tue 4/21

6:15 am-8:36 pm

2 stops22h 21m

$502

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Wed 1/28

7:16 am-6:50 am

1 stop15h 34m

London Heathrow

Tue 2/3

8:50 pm-10:48 pm

2 stops33h 58m

$578

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Sun 1/18

6:00 am-8:35 am

1 stop18h 35m

London Heathrow

Tue 2/3

8:50 pm-10:48 pm

2 stops33h 58m

$579

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 October is also cheap. Prices for this month can be found on momondo for an average of $679.

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 $848 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 46% 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 7 as of January 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
Delta	PriceFrom $444	Free Cancellation	Rating 7.9 8,025 reviews	Search Delta flights
Virgin Atlantic	PriceFrom $469	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom $497	Free Cancellation	Rating 7.0 3,076 reviews	Search Iberia flights
British Airways	PriceFrom $517	Free Cancellation	Rating 6.7 7,657 reviews	Search British Airways flights
United Airlines	PriceFrom $568	Free Cancellation	Rating 7.4 9,139 reviews	Search United Airlines flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights
American Airlines	PriceFrom $595	Free Cancellation	Rating 7.2 11,095 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.