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

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

What airlines fly to Europe?

Iberia, Scandinavian Airlines and British Airways 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 36% 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.

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.

$246 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.

6:37 pm - 7:45 am

ONT

FCO

28h 08m

3 stops

10:15 am - 10:18 pm

FCO

ONT

44h 03m

2 stops

$498United Airlines

Mon, Mar 2 - Mon, Mar 9

8:00 am - 8:10 am

ONT

LIS

16h 10m

2 stops

5:00 am - 8:50 pm

LIS

ONT

22h 50m

2 stops

$501United Airlines

Tue, Mar 3 - Wed, Mar 11

2:08 pm - 5:30 pm

ONT

MAD

18h 22m

2 stops

10:25 am - 9:06 pm

MAD

ONT

19h 41m

1 stop

$512British Airways

Tue, Apr 14 - Thu, Apr 23

6:00 am - 7:45 pm

ONT

FCO

28h 45m

2 stops

9:05 am - 9:00 pm

FCO

ONT

19h 55m

1 stop

$513Delta

Mon, Mar 2 - Mon, Mar 9

7:30 am - 7:45 pm

ONT

FCO

27h 15m

2 stops

12:40 pm - 12:02 pm

FCO

ONT

32h 22m

1 stop

$519Delta

Wed, Feb 25 - Tue, Mar 3

7:00 am - 9:25 am

ONT

MAD

17h 25m

1 stop

12:40 pm - 10:49 pm

MAD

ONT

19h 09m

1 stop

$521British Airways

Tue, Feb 17 - Tue, Feb 24

2:08 pm - 2:25 pm

ONT

MAD

15h 17m

1 stop

3:55 pm - 11:46 pm

MAD

ONT

16h 51m

1 stop

$525Iberia

Tue, Apr 14 - Thu, Apr 23

11:58 pm - 7:50 am

ONT

BCN

23h 52m

1 stop

10:45 am - 10:36 pm

BCN

ONT

20h 51m

1 stop

$846American Airlines

Sat, Mar 21 - Thu, Apr 9

7:00 am - 7:15 am

ONT

FRA

15h 15m

1 stop

10:15 am - 6:42 pm

FRA

ONT

17h 27m

1 stop

$906American Airlines

Mon, Feb 16 - Mon, Mar 2

7:00 am - 7:15 am

ONT

FRA

15h 15m

1 stop

10:15 am - 10:30 pm

FRA

ONT

20h 15m

1 stop

$915Iberia

Fri, Feb 27 - Thu, Mar 12

British Airways flights from Ontario to Europe

Our best British Airways deals on Ontario to Europe flight tickets

British Airways

Feb 17

ONT7:00 amOntario

17h 25m

1 stop

MAD9:25 amMadrid Barajas

Feb 24

MAD12:40 pmMadrid Barajas

19h 09m

1 stop

ONT10:49 pmOntario

$521

British Airways

Feb 17

ONT7:00 amOntario

17h 25m

1 stop

MAD9:25 amMadrid Barajas

Feb 24

MAD8:50 pmMadrid Barajas

34h 29m

2 stops

ONT10:19 pmOntario

$528

British Airways

Mar 1

ONT11:58 pmOntario

24h 27m

1 stop

MAD9:25 amMadrid Barajas

Mar 17

MAD8:50 pmMadrid Barajas

29h 52m

2 stops

ONT6:42 pmOntario

$534

Iberia flights from Ontario to Europe

Our best Iberia deals on Ontario to Europe flight tickets

Iberia

Mar 3

ONT7:00 amOntario

14h 15m

1 stop

MAD6:15 amMadrid Barajas

Mar 9

MAD12:55 amMadrid Barajas

17h 11m

1 stop

ONT10:06 amOntario

$559

Iberia

Feb 19

ONT6:00 amOntario

18h 25m

1 stop

MAD9:25 amMadrid Barajas

Feb 27

MAD12:40 pmMadrid Barajas

20h 19m

1 stop

ONT11:59 pmOntario

$574

Iberia

Apr 14

ONT2:08 pmOntario

15h 17m

1 stop

MAD2:25 pmMadrid Barajas

Apr 27

MAD3:55 pmMadrid Barajas

16h 51m

1 stop

ONT11:46 pmOntario

$575

Fly from

Fly to

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 3/2

6:37 pm-7:45 am

3 stops28h 08m

Rome Fiumicino

Mon 3/9

10:15 am-10:18 pm

2 stops44h 03m

$498

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 3/3

8:00 am-8:10 am

2 stops16h 10m

Lisbon Humberto Delgado

Wed 3/11

5:00 am-8:50 pm

2 stops22h 50m

$501

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/14

2:08 pm-5:30 pm

2 stops18h 22m

Madrid Barajas

Thu 4/23

10:25 am-9:06 pm

1 stop19h 41m

$512

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 3/2

6:00 am-7:45 pm

2 stops28h 45m

Rome Fiumicino

Mon 3/9

9:05 am-9:00 pm

1 stop19h 55m

$513

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 2/25

7:30 am-7:45 pm

2 stops27h 15m

Rome Fiumicino

Tue 3/3

12:40 pm-12:02 pm

1 stop32h 22m

$519

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/17

7:00 am-9:25 am

1 stop17h 25m

Madrid Barajas

Tue 2/24

12:40 pm-10:49 pm

1 stop19h 09m

$521

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/14

2:08 pm-2:25 pm

1 stop15h 17m

Madrid Barajas

Thu 4/23

3:55 pm-11:46 pm

1 stop16h 51m

$525

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 3/21

11:58 pm-7:50 am

1 stop23h 52m

Barcelona-El Prat

Thu 4/9

10:45 am-10:36 pm

1 stop20h 51m

$846

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 2/16

7:00 am-7:15 am

1 stop15h 15m

Frankfurt am Main

Mon 3/2

10:15 am-6:42 pm

1 stop17h 27m

$906

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 2/27

7:00 am-7:15 am

1 stop15h 15m

Frankfurt am Main

Thu 3/12

10:15 am-10:30 pm

1 stop20h 15m

$915

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	10h 35m
Direct flights	None

The fastest flight from Ontario to Europe takes 10h 35m

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 11,217 reviews	Search American Airlines flights
Delta	PriceFrom $444	Free Cancellation	Rating 7.9 8,139 reviews	Search Delta flights
British Airways	PriceFrom $487	Free Cancellation	Rating 6.7 7,714 reviews	Search British Airways flights
Iberia	PriceFrom $497	Free Cancellation	Rating 7.0 3,103 reviews	Search Iberia flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 9,236 reviews	Search United Airlines flights
KLM	PriceFrom $734	Free Cancellation	Rating 7.7 1,448 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.