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?

United Airlines, British Airways, and JetBlue 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 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.

$241 Cheap Flights from Ontario to Europe in 2026

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Find the cheapest flights from Ontario to Europe

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:45 pm - 6:30 pm

ONT

MAD

16h 45m

2 stops

12:40 pm - 10:48 pm

MAD

ONT

19h 08m

1 stop

$426British Airways

Mon, Feb 2 - Wed, Feb 11

10:58 am - 9:25 am

ONT

MAD

13h 27m

1 stop

12:40 pm - 10:49 pm

MAD

ONT

19h 09m

1 stop

$428British Airways

Tue, Feb 3 - Wed, Feb 18

4:45 pm - 6:30 pm

ONT

MAD

16h 45m

2 stops

6:05 pm - 10:07 pm

MAD

ONT

37h 02m

2 stops

$431British Airways

Mon, Feb 2 - Wed, Feb 11

10:56 am - 7:30 pm

ONT

ATH

22h 34m

2 stops

7:55 pm - 6:42 pm

ATH

ONT

31h 47m

2 stops

$456American Airlines

Tue, Mar 3 - Tue, Mar 10

6:00 am - 1:55 pm

ONT

FCO

22h 55m

2 stops

11:35 am - 11:59 pm

FCO

ONT

20h 24m

1 stop

$471Iberia

Sun, Mar 1 - Wed, Mar 11

7:00 am - 9:45 am

ONT

DUB

18h 45m

1 stop

9:50 am - 10:30 pm

DUB

ONT

44h 40m

2 stops

$483United Airlines

Sun, May 3 - Tue, May 12

5:10 am - 7:30 am

ONT

DUB

18h 20m

2 stops

9:50 am - 12:14 pm

DUB

ONT

34h 24m

2 stops

$487United Airlines

Mon, Mar 30 - Tue, Apr 7

7:30 am - 1:15 am

ONT

ATH

31h 45m

2 stops

12:20 pm - 11:47 am

ATH

ONT

32h 27m

1 stop

$505Delta

Tue, Mar 3 - Tue, Mar 10

10:56 am - 1:00 am

ONT

IST

27h 04m

2 stops

8:10 am - 11:59 pm

IST

ONT

26h 49m

2 stops

$545American Airlines

Tue, Feb 24 - Fri, Mar 6

7:00 am - 8:35 am

ONT

LHR

17h 35m

1 stop

6:15 am - 10:30 pm

LHR

ONT

23h 15m

2 stops

$580Iberia

Wed, Mar 4 - Wed, Mar 11

British Airways flights from Ontario to Europe

Our best British Airways deals on Ontario to Europe flight tickets

British Airways

Feb 2

ONT4:45 pmOntario

16h 45m

2 stops

MAD6:30 pmMadrid Barajas

Feb 11

MAD12:40 pmMadrid Barajas

19h 08m

1 stop

ONT10:48 pmOntario

$426

British Airways

Feb 3

ONT10:58 amOntario

13h 27m

1 stop

MAD9:25 amMadrid Barajas

Feb 18

MAD12:40 pmMadrid Barajas

19h 09m

1 stop

ONT10:49 pmOntario

$428

British Airways

Feb 2

ONT4:45 pmOntario

16h 45m

2 stops

MAD6:30 pmMadrid Barajas

Feb 11

MAD6:05 pmMadrid Barajas

37h 02m

2 stops

ONT10:07 pmOntario

$431

Iberia flights from Ontario to Europe

Our best Iberia deals on Ontario to Europe flight tickets

Iberia

Jan 30

ONT10:58 amOntario

13h 27m

1 stop

MAD9:25 amMadrid Barajas

Feb 13

MAD12:40 pmMadrid Barajas

18h 49m

1 stop

ONT10:29 pmOntario

$497

Iberia

Apr 1

ONT2:39 pmOntario

14h 46m

1 stop

MAD2:25 pmMadrid Barajas

Apr 8

MAD3:55 pmMadrid Barajas

16h 51m

1 stop

ONT11:46 pmOntario

$514

Iberia

Apr 6

ONT2:39 pmOntario

14h 46m

1 stop

MAD2:25 pmMadrid Barajas

Apr 16

MAD3:55 pmMadrid Barajas

16h 51m

1 stop

ONT11:46 pmOntario

$516

Fly from

Fly to

Route

Depart

Return

Price

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/2

4:45 pm-6:30 pm

2 stops16h 45m

Madrid Barajas

Wed 2/11

12:40 pm-10:48 pm

1 stop19h 08m

$426

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/3

10:58 am-9:25 am

1 stop13h 27m

Madrid Barajas

Wed 2/18

12:40 pm-10:49 pm

1 stop19h 09m

$428

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/2

4:45 pm-6:30 pm

2 stops16h 45m

Madrid Barajas

Wed 2/11

6:05 pm-10:07 pm

2 stops37h 02m

$431

OntarioAthens

ONT - ATH

ONTATH

Ontario

Tue 3/3

10:56 am-7:30 pm

2 stops22h 34m

Athens Eleftherios V.

Tue 3/10

7:55 pm-6:42 pm

2 stops31h 47m

$456

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 3/1

6:00 am-1:55 pm

2 stops22h 55m

Rome Fiumicino

Wed 3/11

11:35 am-11:59 pm

1 stop20h 24m

$471

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sun 5/3

7:00 am-9:45 am

1 stop18h 45m

Dublin

Tue 5/12

9:50 am-10:30 pm

2 stops44h 40m

$483

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 3/30

5:10 am-7:30 am

2 stops18h 20m

Dublin

Tue 4/7

9:50 am-12:14 pm

2 stops34h 24m

$487

OntarioAthens

ONT - ATH

ONTATH

Ontario

Tue 3/3

7:30 am-1:15 am

2 stops31h 45m

Athens Eleftherios V.

Tue 3/10

12:20 pm-11:47 am

1 stop32h 27m

$505

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 2/24

10:56 am-1:00 am

2 stops27h 04m

Istanbul

Fri 3/6

8:10 am-11:59 pm

2 stops26h 49m

$545

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Wed 3/4

7:00 am-8:35 am

1 stop17h 35m

London Heathrow

Wed 3/11

6:15 am-10:30 pm

2 stops23h 15m

$580

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 $847 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 $607 on momondo.

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 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 8,088 reviews	Search Delta flights
Iberia	PriceFrom $497	Free Cancellation	Rating 7.0 3,098 reviews	Search Iberia flights
British Airways	PriceFrom $517	Free Cancellation	Rating 6.7 7,690 reviews	Search British Airways flights
American Airlines	PriceFrom $538	Free Cancellation	Rating 7.2 11,175 reviews	Search American Airlines flights
United Airlines	PriceFrom $568	Free Cancellation	Rating 7.4 9,193 reviews	Search United Airlines flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.7 1,442 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.