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$239+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HEL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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 2/226:00 am
ONT
-
HEL
2 stops26h 50m
United Airlines
Tue 3/177:05 am
HEL
-
ONT
2 stops24h 13m
United Airlines
Deal found 1/28$778
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:02 pm
ONT
-
HEL
2 stops19h 58m
British Airways
Tue 3/1712:30 pm
HEL
-
ONT
1 stop19h 19m
British Airways
Deal found 1/28$780
This United Airlines deal was found by Cheapflights users on 1/27. 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 4/11:34 pm
ONT
-
HEL
2 stops25h 06m
United Airlines
Fri 4/106:55 am
HEL
-
ONT
2 stops25h 31m
United Airlines
Deal found 1/27$790
This Finnair deal was found by Cheapflights users on 1/27. 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.
Sun 8/166:10 am
ONT
-
HEL
1 stop18h 55m
Multiple Airlines
Tue 9/812:20 pm
HEL
-
ONT
1 stop21h 48m
Multiple Airlines
Deal found 1/27$822
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/126:37 pm
ONT
-
HEL
2 stops19h 58m
United Airlines
Tue 11/312:45 pm
HEL
-
ONT
2 stops19h 41m
United Airlines
Deal found 1/27$830
This United Airlines deal was found by Cheapflights users on 1/28. 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 3/126:00 am
ONT
-
HEL
2 stops27h 50m
United Airlines
Mon 3/231:55 pm
HEL
-
ONT
2 stops41h 23m
United Airlines
Deal found 1/28$849
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/276:00 am
ONT
-
HEL
2 stops33h 20m
United Airlines
Thu 3/51:55 pm
HEL
-
ONT
2 stops42h 23m
United Airlines
Deal found 1/27$861
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/281:50 pm
ONT
-
HEL
2 stops19h 05m
United Airlines
Mon 4/66:55 am
HEL
-
ONT
2 stops23h 41m
United Airlines
Deal found 1/27$878
This United Airlines deal was found by Cheapflights users on 1/27. 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 8/176:00 am
ONT
-
HEL
2 stops26h 55m
United Airlines
Tue 9/87:05 am
HEL
-
ONT
2 stops20h 42m
United Airlines
Deal found 1/27$888
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/76:00 am
ONT
-
HEL
2 stops33h 20m
United Airlines
Sun 2/151:50 pm
HEL
-
ONT
2 stops19h 07m
United Airlines
Deal found 1/28$890

Find 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 January 29, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$778
(United Airlines)

One-way from

$239
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$731
Provider with most accurate pricing for Ontario-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Helsinki-Vantaa flights.
Search Deals
From Ontario to Helsinki-Vantaa
Search Deals
One-way flight from Ontario to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Sun 2/22

6:00 am-6:50 pm

2 stops26h 50m

Helsinki-Vantaa

Tue 3/17

7:05 am-10:18 pm

2 stops24h 13m

$778

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sun 2/22

5:02 pm-11:00 pm

2 stops19h 58m

Helsinki-Vantaa

Tue 3/17

12:30 pm-10:49 pm

1 stop19h 19m

$780

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 4/1

1:34 pm-12:40 am

2 stops25h 06m

Helsinki-Vantaa

Fri 4/10

6:55 am-10:26 pm

2 stops25h 31m

$790

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 3/12

6:37 pm-11:35 pm

2 stops19h 58m

Helsinki-Vantaa

Tue 11/3

12:45 pm-10:26 pm

2 stops19h 41m

$830

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 3/12

6:37 pm-11:35 pm

2 stops19h 58m

Helsinki-Vantaa

Wed 11/4

12:45 pm-10:26 pm

2 stops19h 41m

$830

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 3/12

6:00 am-6:50 pm

2 stops27h 50m

Helsinki-Vantaa

Mon 3/23

1:55 pm-10:18 pm

2 stops41h 23m

$849

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Fri 2/27

6:00 am-1:20 am

2 stops33h 20m

Helsinki-Vantaa

Thu 3/5

1:55 pm-10:18 pm

2 stops42h 23m

$861

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 3/28

1:50 pm-5:55 pm

2 stops19h 05m

Helsinki-Vantaa

Mon 4/6

6:55 am-8:36 pm

2 stops23h 41m

$878

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 2/19

1:45 pm-6:50 pm

2 stops19h 05m

Helsinki-Vantaa

Mon 2/23

12:45 pm-5:41 pm

2 stops38h 56m

$899

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 3/28

5:02 pm-8:00 pm

2 stops17h 58m

Helsinki-Vantaa

Mon 4/6

12:35 pm-11:59 pm

1 stop21h 24m

$1,005

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 19 results
1
2

Compare providers for flights from Ontario to Helsinki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Helsinki in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Helsinki flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Ontario-Helsinki flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Ontario-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Helsinki flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $472). Flying from Ontario to Helsinki in June is currently the most expensive (average of $991). 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.

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 and British Airways can get you from Ontario to Helsinki in just under 19h 58m. Your travel time can differ by up to 6h 52m. 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 $472). Flying from Ontario to Helsinki in June is currently the most expensive (average of $991). 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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