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$549+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HEL
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
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Cheap 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 February 9, 2026.

This United Airlines deal was found by Cheapflights users on 2/7. 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 2/166:10 am
ONT
-
HEL
2 stops26h 40m
United Airlines
Tue 2/247:05 am
HEL
-
ONT
2 stops20h 36m
United Airlines
Deal found 2/7$778
This Delta deal was found by Cheapflights users on 2/6. 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 3/3011:59 am
ONT
-
HEL
2 stops19h 41m
Delta
Thu 12/37:00 am
HEL
-
ONT
2 stops25h 43m
Delta
Deal found 2/6$781
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/171:50 pm
ONT
-
HEL
2 stops47h 45m
United Airlines
Wed 2/256:55 am
HEL
-
ONT
2 stops26h 02m
United Airlines
Deal found 2/7$783
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/151:50 pm
ONT
-
HEL
2 stops25h 30m
United Airlines
Thu 2/266:55 am
HEL
-
ONT
2 stops20h 46m
United Airlines
Deal found 2/7$790
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/166:10 am
ONT
-
HEL
2 stops26h 40m
United Airlines
Mon 2/231:55 pm
HEL
-
ONT
2 stops37h 46m
United Airlines
Deal found 2/7$798
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/151:50 pm
ONT
-
HEL
2 stops25h 30m
United Airlines
Mon 2/231:55 pm
HEL
-
ONT
2 stops37h 46m
United Airlines
Deal found 2/7$811
This United Airlines deal was found by Cheapflights users on 2/6. 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 3/11:45 pm
ONT
-
HEL
2 stops19h 05m
United Airlines
Thu 12/312:45 pm
HEL
-
ONT
2 stops20h 21m
United Airlines
Deal found 2/6$820
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/191:50 pm
ONT
-
HEL
2 stops23h 45m
United Airlines
Thu 2/266:55 am
HEL
-
ONT
2 stops26h 02m
United Airlines
Deal found 2/7$828
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/166:10 am
ONT
-
HEL
2 stops26h 40m
United Airlines
Sat 2/286:50 am
HEL
-
ONT
2 stops20h 51m
United Airlines
Deal found 2/7$829
This Finnair deal was found by Cheapflights users on 2/7. 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.
Wed 2/187:00 am
ONT
-
HEL
1 stop17h 45m
Multiple Airlines
Wed 2/255:00 pm
HEL
-
ONT
2 stops30h 49m
Multiple Airlines
Deal found 2/7$831
This United Airlines deal was found by Cheapflights users on 2/6. 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 3/3111:05 am
ONT
-
HEL
2 stops19h 55m
United Airlines
Thu 12/312:45 pm
HEL
-
ONT
2 stops20h 21m
United Airlines
Deal found 2/6$833
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/171:50 pm
ONT
-
HEL
2 stops43h 00m
United Airlines
Sat 2/286:50 am
HEL
-
ONT
2 stops20h 51m
United Airlines
Deal found 2/7$835

Find flight deals from Ontario to Finland

Keep the following information in mind while searching for Ontario to Finland flight deals. Data was last updated February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$778
(United Airlines)

One-way from

$549
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$717
Provider with most accurate pricing for Los Angeles-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Helsinki-Vantaa flights.
Search Deals
From Ontario to Finland
Search Deals
One-way flight from Ontario to Finland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 9, 2026.
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

Tue 4/21

1:34 pm-6:55 pm

2 stops19h 21m

Helsinki-Vantaa

Tue 4/28

7:05 am-6:02 pm

2 stops20h 57m

$778

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Tue 3/10

1:50 pm-6:50 pm

2 stops20h 00m

Helsinki-Vantaa

Tue 3/17

7:05 am-10:57 pm

2 stops24h 52m

$778

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 2/25

1:45 pm-11:35 pm

2 stops23h 50m

Helsinki-Vantaa

Thu 3/12

6:55 am-10:18 pm

2 stops24h 23m

$778

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Tue 3/3

1:45 pm-6:50 pm

2 stops19h 05m

Helsinki-Vantaa

Thu 12/3

12:45 pm-11:06 pm

2 stops20h 21m

$820

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sun 3/1

1:45 pm-6:50 pm

2 stops19h 05m

Helsinki-Vantaa

Thu 12/3

12:45 pm-11:06 pm

2 stops20h 21m

$820

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 2/19

6:37 pm-11:35 pm

2 stops18h 58m

Helsinki-Vantaa

Fri 2/27

2:15 pm-10:57 pm

2 stops18h 42m

$828

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 3/5

6:37 pm-11:35 pm

2 stops18h 58m

Helsinki-Vantaa

Thu 3/12

6:55 am-8:50 pm

2 stops22h 55m

$828

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Fri 2/20

6:37 pm-11:35 pm

2 stops18h 58m

Helsinki-Vantaa

Fri 2/27

6:55 am-8:07 pm

2 stops23h 12m

$828

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 2/19

1:50 pm-11:35 pm

2 stops23h 45m

Helsinki-Vantaa

Thu 2/26

6:55 am-10:57 pm

2 stops26h 02m

$828

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Tue 3/31

11:05 am-5:00 pm

2 stops19h 55m

Helsinki-Vantaa

Thu 12/3

12:45 pm-11:06 pm

2 stops20h 21m

$833

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 24 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, November is the cheapest month in which you can book a flight from Ontario to Finland (average of $471). 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.

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 19h 21m. 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, November is the cheapest month in which you can book a flight from Ontario to Finland (average of $471). 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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