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$567+ Cheap flights from Ontario (ONT) to Finland

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HEL
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Find flight deals from Ontario to Finland

Cheapest flights from Ontario to Finland
Explore the most affordable flight options available from Ontario to Finland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1610:47 amONT - HEL
1 stop13h 58mAmerican Airlines
Tue 12/212:30 pmHEL - ONT
1 stop15h 52mAmerican Airlines
Deal found 10/16$812
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/299:35 pmONT - HEL
2 stops33h 05mUnited Airlines
Sat 12/61:50 pmHEL - ONT
2 stops42h 59mUnited Airlines
Deal found 10/15$860
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Sun 11/167:00 amONT - HEL
2 stops20h 10mUnited Airlines
Thu 11/206:55 amHEL - ONT
2 stops20h 39mUnited Airlines
Deal found 10/15$895
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Wed 11/56:05 amONT - HEL
2 stops26h 45mUnited Airlines
Fri 11/146:55 amHEL - ONT
2 stops24h 54mUnited Airlines
Deal found 10/15$971
This United Airlines deal was found by Cheapflights users on 10/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:05 amONT - HEL
2 stops26h 35mUnited Airlines
Mon 11/31:55 pmHEL - ONT
2 stops38h 41mUnited Airlines
Deal found 10/16$1,003
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/151:29 pmONT - HEL
2 stops17h 01mUnited Airlines
Thu 11/206:55 amHEL - ONT
2 stops25h 36mUnited Airlines
Deal found 10/15$1,095
This United Airlines deal was found by Cheapflights users on 10/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:05 amONT - HEL
2 stops34h 15mUnited Airlines
Tue 12/301:55 pmHEL - ONT
2 stops42h 30mUnited Airlines
Deal found 10/16$1,111
This United Airlines deal was found by Cheapflights users on 10/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:59 pmONT - HEL
2 stops39h 21mUnited Airlines
Tue 12/301:55 pmHEL - ONT
2 stops42h 30mUnited Airlines
Deal found 10/16$1,120
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Fri 11/287:00 amONT - HEL
2 stops20h 05mUnited Airlines
Sun 11/301:50 pmHEL - ONT
2 stops40h 54mUnited Airlines
Deal found 10/15$1,253
This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:48 pmONT - HEL
2 stops17h 27mBritish Airways
Mon 11/312:30 pmHEL - ONT
1 stop15h 51mBritish Airways
Deal found 10/16$1,446
This American Airlines deal was found by Cheapflights users on 10/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:50 amONT - HEL
1 stop13h 55mAmerican Airlines
Wed 12/3112:30 pmHEL - ONT
1 stop15h 46mAmerican Airlines
Deal found 10/16$1,622
This American Airlines deal was found by Cheapflights users on 10/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:42 pmONT - HEL
1 stop34h 03mAmerican Airlines
Wed 12/3112:30 pmHEL - ONT
1 stop15h 46mAmerican Airlines
Deal found 10/16$1,632

Cheap flight deals from Ontario to Finland

Keep the following information in mind while searching for Ontario to Finland flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$809
(American Airlines)

One-way from

$567
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$796
Provider with most accurate pricing for Los Angeles-Helsinki-Vantaa flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Helsinki-Vantaa flights.
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From Ontario to Finland
Search Deals
One-way flight from Ontario to Finland
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Finland 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 October 16, 2025.
Use the filters below to find and compare flights from Ontario to Finland that are best for you.

Fly from

Ontario

Fly to

Finland

Route

Depart

Return

Price

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 11/29

9:35 pm-4:40 pm

2 stops33h 05m

Helsinki-Vantaa

Sat 12/6

1:50 pm-10:49 pm

2 stops42h 59m

$860

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sun 11/16

7:00 am-1:10 pm

2 stops20h 10m

Helsinki-Vantaa

Thu 11/20

6:55 am-5:34 pm

2 stops20h 39m

$895

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 11/5

6:05 am-6:50 pm

2 stops26h 45m

Helsinki-Vantaa

Fri 11/14

6:55 am-9:49 pm

2 stops24h 54m

$971

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Mon 10/27

5:05 am-4:40 pm

2 stops26h 35m

Helsinki-Vantaa

Mon 11/3

1:55 pm-6:36 pm

2 stops38h 41m

$1,003

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Mon 1/12

8:55 am-12:55 pm

2 stops18h 00m

Helsinki-Vantaa

Fri 1/23

1:55 pm-11:56 pm

2 stops20h 01m

$1,038

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 11/15

1:29 pm-4:30 pm

2 stops17h 01m

Helsinki-Vantaa

Thu 11/20

6:55 am-10:31 pm

2 stops25h 36m

$1,095

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 12/24

5:05 am-1:20 am

2 stops34h 15m

Helsinki-Vantaa

Tue 12/30

1:55 pm-10:25 pm

2 stops42h 30m

$1,111

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Fri 11/28

7:00 am-1:05 pm

2 stops20h 05m

Helsinki-Vantaa

Sun 11/30

1:50 pm-8:44 pm

2 stops40h 54m

$1,253

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Fri 12/26

10:50 am-10:45 am

1 stop13h 55m

Helsinki-Vantaa

Wed 12/31

12:30 pm-6:16 pm

1 stop15h 46m

$1,672

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 12/24

12:55 pm-9:10 pm

2 stops22h 15m

Helsinki-Vantaa

Mon 1/5

2:00 pm-2:18 pm

2 stops34h 18m

$1,688

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 12 results
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Best time to book a flight from Ontario to Finland

Have a flexible travel schedule? Discover the best time to fly to Finland 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Finland

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Finland (average of $476). Flying from Ontario to Finland in June is currently the most expensive (average of $983). 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 FI?

Find hourly flight availability from Ontario to Finland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

It’s typically best to fly out from Ontario to Finland in the evening. Doing so could potentially save you 74% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Finland. 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 Finland?

    For a flight from Ontario to Finland, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Ontario to Finland?

    Airlines like United Airlines fly from Ontario to Finland in about 33h 05m. The time it takes to get you to your destination can typically vary by up to . There are 5575 mi between Ontario and Finland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Finland 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 Finland?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Finland (average of $476). Flying from Ontario to Finland in June is currently the most expensive (average of $983). 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.

See more FAQs

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