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$247+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Ontario to Europe

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Europe (EU0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$519
(KLM)

One-way from

$247
(Trip.com)
From Ontario to Europe
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One-way flight from Ontario to Europe
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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 December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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 12/311:57 pmONT - LHR
1 stop14h 03mUnited Airlines
Tue 1/142:30 pmLHR - ONT
2 stops38h 21mUnited Airlines
Deal found 12/17$677
This Delta deal was found by Cheapflights users on 12/16. 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 12/301:15 pmONT - LHR
1 stop12h 45mDelta
Tue 1/1410:45 amLHR - ONT
1 stop13h 43mDelta
Deal found 12/16$695
This KLM deal was found by Cheapflights users on 12/17. 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.
Sun 12/296:52 amONT - FCO
1 stop18h 38mKLM
Fri 1/1712:45 pmFCO - ONT
1 stop19h 07mKLM
Deal found 12/17$719
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/316:10 amONT - FCO
2 stops17h 20mUnited Airlines
Tue 1/148:25 amFCO - ONT
2 stops18h 39mUnited Airlines
Deal found 12/17$777
This KLM deal was found by Cheapflights users on 12/17. 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 12/3112:55 pmONT - LHR
1 stop13h 40mKLM
Tue 1/1410:45 amLHR - ONT
1 stop13h 43mKLM
Deal found 12/17$787
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/315:05 amONT - FRA
2 stops19h 50mUnited Airlines
Tue 1/1411:10 amFRA - ONT
1 stop18h 41mUnited Airlines
Deal found 12/17$819
This Air Canada deal was found by Cheapflights users on 12/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:05 amONT - LHR
2 stops18h 05mAir Canada
Tue 1/1411:10 amLHR - ONT
2 stops17h 41mAir Canada
Deal found 12/17$914
This The Travel House deal was found by Cheapflights users on 12/18. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/301:57 pmONT - LHR
1 stop14h 03mLufthansa
Sat 1/1110:05 amLHR - ONT
1 stop16h 14mLufthansa
Deal found 12/18$1,009
This Gotogate deal was found by Cheapflights users on 12/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2712:59 amONT - FRA
1 stop21h 16mBritish Airways
Sat 1/1110:15 amFRA - ONT
1 stop21h 30mBritish Airways
Deal found 12/18$1,015
This Finnair deal was found by Cheapflights users on 12/18. 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 12/2410:02 amONT - LHR
1 stop19h 18mMultiple Airlines
Fri 1/1710:40 amLHR - ONT
1 stop15h 57mMultiple Airlines
Deal found 12/18$1,026
This Delta deal was found by Cheapflights users on 12/17. 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.
Fri 12/2710:29 pmONT - MAD
2 stops26h 46mDelta
Sun 1/126:00 amMAD - ONT
2 stops26h 53mDelta
Deal found 12/17$1,031
This Iberia deal was found by Cheapflights users on 12/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:46 amONT - ATH
2 stops18h 29mMultiple Airlines
Tue 1/147:45 amATH - ONT
2 stops25h 00mMultiple Airlines
Deal found 12/17$1,048

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 3/31

7:00 am-10:35 am

1 stop18h 35m

Rome Fiumicino

Tue 4/8

9:45 am-10:58 pm

1 stop22h 13m

$519

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 1/21

7:05 am-10:30 am

1 stop18h 25m

Rome Fiumicino

Tue 1/28

12:00 pm-11:53 pm

2 stops20h 53m

$523

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/12

5:10 am-9:35 am

2 stops19h 25m

Madrid Barajas

Wed 1/29

12:15 pm-8:51 pm

2 stops41h 36m

$536

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/19

5:10 am-9:35 am

3 stops19h 25m

Madrid Barajas

Fri 1/31

12:15 pm-8:51 pm

2 stops41h 36m

$542

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 1/20

7:05 am-9:00 am

1 stop16h 55m

Madrid Barajas

Tue 2/4

11:00 am-10:52 pm

1 stop20h 52m

$550

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 1/14

5:10 am-10:00 am

2 stops19h 50m

Rome Fiumicino

Wed 1/22

12:15 pm-8:51 pm

2 stops41h 36m

$557

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 2/26

2:54 pm-7:50 pm

2 stops19h 56m

Madrid Barajas

Wed 3/5

1:00 pm-10:16 pm

1 stop18h 16m

$561

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 1/22

6:00 am-9:15 am

2 stops18h 15m

Madrid Barajas

Wed 1/29

11:15 am-9:57 pm

2 stops19h 42m

$563

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 3/22

12:39 pm-8:00 am

1 stop35h 21m

Madrid Barajas

Thu 4/3

12:40 pm-10:58 pm

1 stop19h 18m

$564

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 1/15

6:15 am-6:55 pm

2 stops27h 40m

Rome Fiumicino

Wed 1/22

12:15 pm-8:51 pm

2 stops41h 36m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

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 $1,004). 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 December 18, 2024.

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 December 18, 2024.
China Airlines
8.3
Very good
754 reviews

Food

7.8

Entertainment

8.0

Crew

8.6

Overall

8.3

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

China Airlines
8.3
Very good
754 reviews
China Airlines
8.3
Very good
754 reviews

Food

7.8

Entertainment

8.0

Crew

8.6

Overall

8.3

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

Delta
8.0
Very good
8,604 reviews
China Airlines
8.3
Very good
754 reviews

Food

7.8

Entertainment

8.0

Crew

8.6

Overall

8.3

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

Alaska Airlines
8.0
Very good
9,552 reviews
China Airlines
8.3
Very good
754 reviews

Food

7.8

Entertainment

8.0

Crew

8.6

Overall

8.3

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

KLM
7.8
Good
1,349 reviews
China Airlines
8.3
Very good
754 reviews

Food

7.8

Entertainment

8.0

Crew

8.6

Overall

8.3

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

Qatar Airways
7.5
Good
3,798 reviews
China Airlines
8.3
Very good
754 reviews

Food

7.8

Entertainment

8.0

Crew

8.6

Overall

8.3

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

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 WestJet, which is currently one of the cheapest options available, starting at $332. KLM flights start at $398 while deals on Delta start at $402 one-way.

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

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

  • 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 $1,004). 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

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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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$455Average$629FlexibilityNo cancel feeOn-time72%
DeltaCheapest$481Average$914FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$489Average$966FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$489Average$874FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$492Average$909FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$509Average$943FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$668Average$1,059FlexibilityNo cancel feeOn-time67%
KLMCheapest$738Average$1,363FlexibilityNo cancel feeOn-time75%
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