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$301+ Cheap flights from Ontario (ONT) to Europe

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Mar 19 — Mar 261
Wed 3/19
Wed 3/26
1 adult, Economy
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Cheap flight deals from Ontario to Europe

Keep the following information in mind while searching for Ontario to Europe flight deals. Data was last updated March 14, 2025.

Round-trip from

$517
(British Airways)

One-way from

$301
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$967
From Ontario to Europe
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One-way flight from Ontario to Europe
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Highest demand for flights based on searches. 18% potential increase in price ($266 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to Europe

Cheapest flights from Ontario to Europe
Explore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2025.

This Ticket deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/177:00 amONT - MXP
1 stop17h 05mKLM
Wed 4/211:40 amMXP - ONT
1 stop20h 03mKLM
Deal found 3/13$500
This British Airways deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/314:30 pmONT - FCO
2 stops18h 35mBritish Airways
Tue 4/810:00 amFCO - ONT
1 stop21h 10mBritish Airways
Deal found 3/13$517
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/177:00 amONT - MXP
1 stop17h 05mDelta
Tue 4/111:40 amMXP - ONT
1 stop20h 03mDelta
Deal found 3/13$522
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:27 pmONT - FCO
1 stop33h 53mUnited Airlines
Thu 11/1312:15 pmFCO - ONT
2 stops41h 02mUnited Airlines
Deal found 3/13$526
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:59 pmONT - BCN
2 stops24h 01mDelta
Wed 11/1910:15 amBCN - ONT
2 stops21h 14mDelta
Deal found 3/12$527
This Priceline deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:00 pmONT - FCO
2 stops18h 15mIberia
Thu 11/1312:00 pmFCO - ONT
2 stops20h 45mIberia
Deal found 3/13$534
This KLM deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/187:00 amONT - FCO
1 stop15h 55mKLM
Wed 3/2611:45 amFCO - ONT
1 stop18h 58mKLM
Deal found 3/13$543
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/187:00 amONT - FCO
1 stop15h 55mDelta
Tue 3/259:20 amFCO - ONT
2 stops21h 23mDelta
Deal found 3/13$547
This KLM deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:59 pmONT - MAD
1 stop25h 01mKLM
Tue 12/911:00 amMAD - ONT
1 stop17h 29mKLM
Deal found 3/11$551
This Finnair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/17:00 amONT - MAD
2 stops15h 55mMultiple Airlines
Wed 4/912:25 pmMAD - ONT
2 stops18h 33mMultiple Airlines
Deal found 3/13$555
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:02 amONT - MAD
2 stops19h 13mUnited Airlines
Thu 11/611:05 amMAD - ONT
2 stops20h 30mUnited Airlines
Deal found 3/13$565
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/410:59 pmONT - MAD
1 stop25h 01mDelta
Thu 11/1311:00 amMAD - ONT
1 stop17h 29mDelta
Deal found 3/12$566

Find flights from Ontario to Europe within your budget

Customize your flight search to find flights from Ontario to Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 14, 2025.

Fly from

Ontario

Fly to

Europe

Route

Depart

Return

Price

OntarioMilan

ONT - MXP

ONTMXP

Ontario

Mon 3/17

7:00 am-8:05 am

1 stop17h 05m

Milan Malpensa

Wed 4/2

11:40 am-10:43 pm

1 stop20h 03m

$500

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 3/31

4:30 pm-8:05 pm

2 stops18h 35m

Rome Fiumicino

Tue 4/8

10:00 am-10:10 pm

1 stop21h 10m

$517

OntarioMilan

ONT - MXP

ONTMXP

Ontario

Mon 3/17

7:00 am-8:05 am

1 stop17h 05m

Milan Malpensa

Tue 4/1

11:40 am-10:43 pm

1 stop20h 03m

$522

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 3/31

6:39 pm-8:15 am

2 stops28h 36m

Rome Fiumicino

Tue 4/8

12:25 pm-3:17 pm

2 stops35h 52m

$531

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 3/25

7:00 am-9:25 am

1 stop18h 25m

Rome Fiumicino

Wed 4/2

9:45 am-10:43 pm

1 stop21h 58m

$543

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/1

7:00 am-7:55 am

2 stops15h 55m

Madrid Barajas

Wed 4/9

12:25 pm-9:58 pm

2 stops18h 33m

$555

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/1

6:00 am-6:40 am

2 stops15h 40m

Madrid Barajas

Wed 4/9

10:50 am-9:58 pm

2 stops20h 08m

$565

OntarioRome

ONT - FCO

ONTFCO

Ontario

Thu 3/27

7:00 am-6:55 am

1 stop15h 55m

Rome Fiumicino

Wed 4/2

9:45 am-11:56 pm

2 stops23h 11m

$568

OntarioMilan

ONT - MXP

ONTMXP

Ontario

Wed 4/2

5:00 am-10:00 am

2 stops20h 00m

Milan Malpensa

Thu 4/10

9:45 am-9:58 pm

2 stops21h 13m

$570

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/1

10:27 pm-5:30 am

1 stop22h 03m

Madrid Barajas

Wed 4/9

12:25 pm-9:58 pm

2 stops18h 33m

$598

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Europe

Have a flexible travel schedule? Discover the best time to fly to Europe from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Europe

Get recent, data-driven insights about flights from Ontario to Europe including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Europe?

Currently, November is the cheapest month in which you can book a flight from Ontario to Europe (average of $523). Flying from Ontario to Europe in June is currently the most expensive (average of $974). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to EU?

Find hourly flight availability from Ontario to Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Europe as you normally would.

Rainfall in Europe by month

Plan your trip to Europe by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Europe ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Europe when rainfall is around 0.4 in.

Temperature in Europe by month

Plan your trip to Europe by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Europe

Get insights into the airlines that provide service to Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Europe. Reviews last updated March 14, 2025.
China Airlines
8.2
Very good
723 reviews

Entertainment

8.0

Food

7.8

Crew

8.5

Boarding

8.3

Comfort

8.0

Overall

8.2

Reviews

1 / 20

10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

China Airlines
8.2
Very good
723 reviews
China Airlines
8.2
Very good
723 reviews

Entertainment

8.0

Food

7.8

Crew

8.5

Boarding

8.3

Comfort

8.0

Overall

8.2

Reviews

1 / 20

10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Delta
8.0
Very good
7,944 reviews
China Airlines
8.2
Very good
723 reviews

Entertainment

8.0

Food

7.8

Crew

8.5

Boarding

8.3

Comfort

8.0

Overall

8.2

Reviews

1 / 20

10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

KLM
7.8
Good
1,320 reviews
China Airlines
8.2
Very good
723 reviews

Entertainment

8.0

Food

7.8

Crew

8.5

Boarding

8.3

Comfort

8.0

Overall

8.2

Reviews

1 / 20

10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Qatar Airways
7.4
Good
3,545 reviews
China Airlines
8.2
Very good
723 reviews

Entertainment

8.0

Food

7.8

Crew

8.5

Boarding

8.3

Comfort

8.0

Overall

8.2

Reviews

1 / 20

10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Air France
7.4
Good
1,424 reviews
China Airlines
8.2
Very good
723 reviews

Entertainment

8.0

Food

7.8

Crew

8.5

Boarding

8.3

Comfort

8.0

Overall

8.2

Reviews

1 / 20

10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Related info for your journey

Find useful and relevant information for your journey from Ontario to Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Europe?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Europe.

  • What are the cheapest airlines to fly from Ontario to Europe one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $374. United Airlines flights start at $393 while deals on KLM start at $406 one-way.

  • What are the most popular routes from Ontario to Europe?

    The most popular route from Ontario to Europe is Ontario - Rome Fiumicino. You may also consider Ontario - Paris Charles de Gaulle or Ontario - London Heathrow.

  • Can I find deals for flights from Ontario to Europe that include hotel bookings?

    Yes. In addition to deals on Ontario to Europe flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Europe?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Europe.

  • Can I find deals for business class flights from Ontario to Europe?

    Yes. Cheapflights offers flight deals from Ontario to Europe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Europe?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Europe (average of $523). Flying from Ontario to Europe in June is currently the most expensive (average of $974). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Ontario to Europe

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Ontario to Europe

Discover the top 8 airlines that operate flights from Ontario to Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$454Average$889FlexibilityNo cancel feeOn-time72%
KLMCheapest$481Average$934FlexibilityNo cancel feeOn-time75%
DeltaCheapest$481Average$922FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$489Average$861FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$492Average$949FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$504Average$971FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$551Average$856FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$690Average$1,139FlexibilityNo cancel feeOn-time67%
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