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$533+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HEL
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
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 November 3, 2025.

This United Airlines deal was found by Cheapflights users on 11/2. 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 12/31:34 pmONT - HEL
2 stops16h 56mUnited Airlines
Wed 12/106:55 amHEL - ONT
2 stops23h 47mUnited Airlines
Deal found 11/2$784
This Delta deal was found by Cheapflights users on 11/2. 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.
Thu 12/412:12 pmONT - HEL
2 stops19h 13mDelta
Tue 12/167:00 amHEL - ONT
2 stops20h 07mDelta
Deal found 11/2$910
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/266:04 amONT - HEL
2 stops26h 46mUnited Airlines
Thu 1/812:45 pmHEL - ONT
2 stops58h 02mUnited Airlines
Deal found 11/2$1,012
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/55:05 amONT - HEL
2 stops25h 45mUnited Airlines
Wed 12/1712:45 pmHEL - ONT
2 stops20h 04mUnited Airlines
Deal found 11/2$1,036
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/266:04 amONT - HEL
2 stops26h 46mUnited Airlines
Sun 1/1112:45 pmHEL - ONT
2 stops20h 08mUnited Airlines
Deal found 11/2$1,056
This American Airlines deal was found by Cheapflights users on 11/2. 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 11/3010:38 amONT - HEL
1 stop14h 07mAmerican Airlines
Tue 12/1612:30 pmHEL - ONT
1 stop15h 47mAmerican Airlines
Deal found 11/2$1,057
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Mon 11/107:00 amONT - HEL
1 stop17h 45mAmerican Airlines
Mon 11/2412:30 pmHEL - ONT
1 stop15h 52mAmerican Airlines
Deal found 11/3$1,070
This Icelandair deal was found by Cheapflights users on 11/1. 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 12/411:15 amONT - HEL
2 stops15h 40mMultiple Airlines
Thu 12/111:55 pmHEL - ONT
2 stops19h 34mMultiple Airlines
Deal found 11/1$1,087
This United Airlines deal was found by Cheapflights users on 11/1. 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 11/21:29 pmONT - HEL
2 stops41h 11mUnited Airlines
Sun 11/91:50 pmHEL - ONT
2 stops38h 46mUnited Airlines
Deal found 11/1$1,102
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/116:00 amONT - HEL
2 stops26h 50mUnited Airlines
Tue 1/61:55 pmHEL - ONT
2 stops41h 03mUnited Airlines
Deal found 11/2$1,210
This Icelandair deal was found by Cheapflights users on 11/3. 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.
Mon 11/1010:50 amONT - HEL
2 stops16h 05mMultiple Airlines
Mon 11/241:55 pmHEL - ONT
2 stops20h 00mMultiple Airlines
Deal found 11/3$1,212

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$773
(United Airlines)

One-way from

$533
(Finnair)

Popular in

June

Cheapest in

February

Average price

$744
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. 15% potential increase in price ($164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 3, 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

Mon 3/30

1:00 pm-7:00 pm

2 stops20h 00m

Helsinki-Vantaa

Mon 4/6

12:50 pm-12:33 pm

2 stops57h 43m

$782

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 12/3

1:34 pm-4:30 pm

2 stops16h 56m

Helsinki-Vantaa

Wed 12/10

6:55 am-8:42 pm

2 stops23h 47m

$784

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Mon 3/30

6:46 am-10:45 am

1 stop17h 59m

Helsinki-Vantaa

Mon 4/6

12:35 pm-11:43 pm

1 stop21h 08m

$810

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Fri 1/16

5:05 am-6:50 pm

2 stops27h 45m

Helsinki-Vantaa

Tue 1/27

7:05 am-10:53 pm

2 stops25h 48m

$823

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Mon 3/2

1:45 pm-6:50 pm

2 stops19h 05m

Helsinki-Vantaa

Mon 3/16

6:55 am-8:45 pm

2 stops22h 50m

$823

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 3/25

11:30 am-12:55 pm

2 stops16h 25m

Helsinki-Vantaa

Tue 3/31

3:00 pm-10:38 pm

2 stops17h 38m

$882

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 3/28

10:30 pm-4:40 pm

2 stops56h 10m

Helsinki-Vantaa

Sat 4/4

7:00 am-10:38 pm

2 stops25h 38m

$893

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 12/4

12:12 pm-5:25 pm

2 stops19h 13m

Helsinki-Vantaa

Tue 12/16

7:00 am-5:07 pm

2 stops20h 07m

$910

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 12/6

12:12 pm-5:25 pm

2 stops19h 13m

Helsinki-Vantaa

Tue 12/16

7:00 am-5:07 pm

2 stops20h 07m

$910

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Tue 3/24

11:30 am-12:55 pm

2 stops16h 25m

Helsinki-Vantaa

Tue 3/31

3:00 pm-10:38 pm

2 stops17h 38m

$925

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 23 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 $984). 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 November 3, 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 20h. 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 $984). 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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