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$441+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HEL
May 19 — May 261
Mon 5/19
Mon 5/26
1 adult, Economy
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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 May 14, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$560
(United Airlines)

One-way from

$441
(United Airlines)

Popular in

July

Cheapest in

November

Average price

$890
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
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One-way flight from Ontario to Finland
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Highest demand for flights based on searches. 19% potential increase in price ($218 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 May 2025
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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 May 14, 2025.

This United Airlines deal was found by Cheapflights users on 5/13. 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 9/141:15 pmONT - HEL
2 stops17h 25mUnited Airlines
Fri 10/36:10 amHEL - ONT
2 stops26h 42mUnited Airlines
Deal found 5/13$560
This British Airways deal was found by Cheapflights users on 5/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/287:30 amONT - HEL
2 stops18h 50mBritish Airways
Sat 9/2012:35 pmHEL - ONT
1 stop15h 05mBritish Airways
Deal found 5/14$817
This Delta deal was found by Cheapflights users on 5/13. 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.
Sat 5/241:10 pmONT - HEL
2 stops18h 30mDelta
Thu 6/127:00 amHEL - ONT
2 stops19h 28mDelta
Deal found 5/13$839
This Finnair deal was found by Cheapflights users on 5/14. 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 5/286:00 amONT - HEL
1 stop21h 10mMultiple Airlines
Sat 9/2012:35 pmHEL - ONT
1 stop21h 01mMultiple Airlines
Deal found 5/14$901
This Iberia deal was found by Cheapflights users on 5/14. 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.
Wed 7/308:15 amONT - HEL
2 stops28h 30mIberia
Tue 8/512:35 pmHEL - ONT
1 stop16h 18mIberia
Deal found 5/14$969
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 5/292:44 pmONT - HEL
1 stop14h 16mAmerican Airlines
Thu 6/1212:35 pmHEL - ONT
1 stop16h 26mAmerican Airlines
Deal found 5/13$1,083

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 May 14, 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

Sun 9/14

1:15 pm-4:40 pm

2 stops17h 25m

Helsinki-Vantaa

Tue 9/30

6:10 am-10:52 pm

2 stops26h 42m

$560

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 5/28

7:30 am-12:20 pm

2 stops18h 50m

Helsinki-Vantaa

Sat 9/20

12:35 pm-5:40 pm

1 stop15h 05m

$817

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 5/24

1:10 pm-5:40 pm

2 stops18h 30m

Helsinki-Vantaa

Thu 6/12

7:00 am-4:28 pm

2 stops19h 28m

$839

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 5/28

6:00 am-1:10 pm

1 stop21h 10m

Helsinki-Vantaa

Sat 9/20

12:35 pm-11:36 pm

1 stop21h 01m

$901

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Wed 7/30

8:15 am-10:45 pm

2 stops28h 30m

Helsinki-Vantaa

Tue 8/5

12:35 pm-6:53 pm

1 stop16h 18m

$969

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Thu 5/29

2:44 pm-3:00 pm

1 stop14h 16m

Helsinki-Vantaa

Thu 6/12

12:35 pm-7:01 pm

1 stop16h 26m

$1,083

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Tue 9/9

6:04 am-6:55 pm

2 stops26h 51m

$441

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 9/20

10:59 pm-5:40 pm

2 stops32h 41m

$463

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Sat 9/20

11:59 pm-10:45 am

1 stop24h 46m

$519

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

Mon 5/26

11:51 am-1:10 pm

1 stop15h 19m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

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 $444). Flying from Ontario to Finland in June is currently the most expensive (average of $1,084). 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 May 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Finland as you normally would.

Rainfall in Finland by month

Plan your trip to Finland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Finland ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Finland when rainfall is around 1.2 in.

Temperature in Finland by month

Plan your trip to Finland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Finland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Finland

Get insights into the airlines that provide service to Finland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Finland. Reviews last updated May 14, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,730 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,728 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,886 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Ontario to Finland one-way?

    One-way options have recently been found by users for as low as $441 on United Airlines. Other airlines that offer cheap prices include Delta from $463 and American Airlines from $519 one-way.

  • 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 $444). Flying from Ontario to Finland in June is currently the most expensive (average of $1,084). 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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