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$488+ Cheap flights from Ontario (ONT) to Helsinki (HEL)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HEL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Ontario to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Helsinki (HEL). 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 September 17, 2025.

Round-trip from

$701
(United Airlines)

One-way from

$488
(Finnair)

Popular in

June

Cheapest in

February

Average price

$806
From Ontario to Helsinki-Vantaa
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One-way flight from Ontario to Helsinki-Vantaa
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Highest demand for flights based on searches. 16% potential increase in price ($167 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Helsinki

Cheapest flights from Ontario to Helsinki
Explore the most affordable flight options available from Ontario to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 12/41:34 pmONT - HEL
2 stops16h 56mUnited Airlines
Thu 12/116:55 amHEL - ONT
2 stops23h 47mUnited Airlines
Deal found 9/17$701
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 12/2411:45 amONT - HEL
2 stops19h 40mDelta
Tue 1/66:30 amHEL - ONT
2 stops24h 44mDelta
Deal found 9/16$1,192
This Icelandair deal was found by Cheapflights users on 9/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/211:15 amONT - HEL
2 stops15h 40mMultiple Airlines
Tue 12/91:55 pmHEL - ONT
2 stops18h 10mMultiple Airlines
Deal found 9/17$1,252
This Icelandair deal was found by Cheapflights users on 9/16. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:15 amONT - HEL
2 stops15h 40mMultiple Airlines
Mon 11/171:55 pmHEL - ONT
2 stops18h 10mMultiple Airlines
Deal found 9/16$1,302
This Icelandair deal was found by Cheapflights users on 9/16. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2011:15 amONT - HEL
2 stops15h 40mMultiple Airlines
Mon 11/241:55 pmHEL - ONT
2 stops20h 00mMultiple Airlines
Deal found 9/16$1,367
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/265:05 amONT - HEL
2 stops28h 45mUnited Airlines
Tue 11/1112:45 pmHEL - ONT
2 stops33h 52mUnited Airlines
Deal found 9/16$1,603
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 12/2011:59 pmONT - HEL
2 stops30h 41mUnited Airlines
Tue 1/612:45 pmHEL - ONT
2 stops20h 08mUnited Airlines
Deal found 9/17$1,623
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/127:00 amONT - HEL
2 stops23h 30mUnited Airlines
Mon 11/171:55 pmHEL - ONT
2 stops40h 49mUnited Airlines
Deal found 9/17$1,666
This Iberia deal was found by Cheapflights users on 9/17. 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.
Sun 10/128:15 amONT - HEL
2 stops28h 30mIberia
Thu 10/167:40 amHEL - ONT
2 stops21h 22mIberia
Deal found 9/17$1,823
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 9/1910:53 amONT - HEL
1 stop13h 52mAmerican Airlines
Mon 9/2212:35 pmHEL - ONT
1 stop16h 19mAmerican Airlines
Deal found 9/16$1,927
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sun 10/55:05 amONT - HEL
2 stops27h 50mUnited Airlines
Sun 10/261:50 pmHEL - ONT
2 stops37h 46mUnited Airlines
Deal found 9/17$1,963
This Icelandair deal was found by Cheapflights users on 9/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:39 amONT - HEL
2 stops16h 21mMultiple Airlines
Thu 9/253:00 pmHEL - ONT
2 stops18h 54mMultiple Airlines
Deal found 9/17$2,098

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Helsinki 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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Helsinki that are best for you.

Fly from

Ontario

Fly to

Helsinki

Route

Depart

Return

Price

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 12/4

1:34 pm-4:30 pm

2 stops16h 56m

Helsinki-Vantaa

Thu 12/11

6:55 am-8:42 pm

2 stops23h 47m

$701

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 2/11

10:57 am-3:10 pm

2 stops18h 13m

Helsinki-Vantaa

Tue 2/17

12:30 pm-11:43 pm

1 stop21h 13m

$842

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 2/11

8:55 am-12:55 pm

2 stops18h 00m

Helsinki-Vantaa

Tue 2/17

1:55 pm-10:37 pm

2 stops18h 42m

$1,142

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 12/24

11:45 am-5:25 pm

2 stops19h 40m

Helsinki-Vantaa

Tue 1/6

6:30 am-9:14 pm

2 stops24h 44m

$1,192

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Tue 12/2

11:15 am-12:55 pm

2 stops15h 40m

Helsinki-Vantaa

Tue 12/9

1:55 pm-10:05 pm

2 stops18h 10m

$1,252

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 11/12

11:15 am-12:55 pm

2 stops15h 40m

Helsinki-Vantaa

Mon 11/17

1:55 pm-10:05 pm

2 stops18h 10m

$1,302

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 11/20

11:15 am-12:55 pm

2 stops15h 40m

Helsinki-Vantaa

Mon 11/24

1:55 pm-11:55 pm

2 stops20h 00m

$1,367

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sun 10/26

5:05 am-6:50 pm

2 stops28h 45m

Helsinki-Vantaa

Tue 11/11

12:45 pm-12:37 pm

2 stops33h 52m

$1,603

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 12/20

11:59 pm-4:40 pm

2 stops30h 41m

Helsinki-Vantaa

Tue 1/6

12:45 pm-10:53 pm

2 stops20h 08m

$1,623

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 11/12

7:00 am-4:30 pm

2 stops23h 30m

Helsinki-Vantaa

Mon 11/17

1:55 pm-8:44 pm

2 stops40h 49m

$1,666

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
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Best time to book a flight from Ontario to Helsinki

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

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Helsinki (average of $444). Flying from Ontario to Helsinki in June is currently the most expensive (average of $1,082). 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 HEL?

Find hourly flight availability from Ontario to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Ontario to Helsinki, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • How long is the flight from Ontario to Helsinki?

    United Airlines, Iberia, and Delta can get you from Ontario to Helsinki in just under 16h 56m. Your travel time can differ by up to 2h 44m. The distance between Ontario and Helsinki is about 5575 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Ontario to Helsinki (average of $444). Flying from Ontario to Helsinki in June is currently the most expensive (average of $1,082). 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

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

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