What is the cheapest day to fly from Ontario to Helsinki?

Travelers seeking maximum savings on their Ontario to Helsinki flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Helsinki 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 Helsinki when rainfall is around 1.2 in.

If weather is an important factor for your trip to Helsinki, 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).

How far in advance should I book a flight from Ontario to Helsinki?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 23 days in advance, which can save you up to 46% on flights from Ontario to Helsinki compared to booking the week you need them. Waiting 23 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $816. For sooner than that we have options available in the next 3 days from $949.

What is the cheapest month to fly from Ontario to Helsinki?

November can be a great time to fly to Helsinki from Ontario with a flight ticket averaging about $865. Cheapflights users have found deals in the month of November for as cheap as $480. The most expensive prices can be found in the month of June.

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.

$527+ Cheap Flights from Ontario to Helsinki

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Cheap flight deals from Ontario to Helsinki

Round-trip from	$790 (Finnair)
One-way from	$527 (Ovago)
Popular in	June
Cheapest in	November
Average price	$1,006

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. 15% potential increase in price ($163 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in August 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 agosto 14, 2025.

mié. 10/86:10 amONT - HEL

1 stop18h 35mMultiple Airlines

vie. 10/1712:35 pmHEL - ONT

1 stop16h 27mMultiple Airlines

Deal found 8/14

$790

mié. 8/131:34 pmONT - HEL

2 stops19h 21mUnited Airlines

vie. 9/126:10 amHEL - ONT

2 stops24h 33mUnited Airlines

Deal found 8/13

$915

sáb. 8/161:34 pmONT - HEL

2 stops17h 16mUnited Airlines

vie. 8/221:35 pmHEL - ONT

2 stops42h 55mUnited Airlines

Deal found 8/13

$959

jue. 8/287:00 amONT - HEL

2 stops31h 40mUnited Airlines

jue. 9/46:10 amHEL - ONT

2 stops21h 19mUnited Airlines

Deal found 8/13

$968

dom. 8/175:05 amONT - HEL

2 stops33h 35mUnited Airlines

vie. 8/226:00 amHEL - ONT

2 stops21h 29mUnited Airlines

Deal found 8/13

$970

vie. 12/128:48 amONT - HEL

2 stops19h 07mMultiple Airlines

dom. 12/2112:30 pmHEL - ONT

1 stop19h 33mMultiple Airlines

Deal found 8/14

$982

jue. 8/211:15 pmONT - HEL

2 stops36h 35mUnited Airlines

jue. 8/286:00 amHEL - ONT

2 stops40h 13mUnited Airlines

Deal found 8/12

$1,008

sáb. 8/161:34 pmONT - HEL

2 stops17h 16mUnited Airlines

mié. 8/206:10 amHEL - ONT

2 stops24h 33mUnited Airlines

Deal found 8/13

$1,009

jue. 9/1110:55 amONT - HEL

1 stop14h 10mAmerican Airlines

jue. 9/2511:55 amHEL - ONT

1 stop16h 59mAmerican Airlines

Deal found 8/12

$1,038

jue. 12/41:34 pmONT - HEL

2 stops16h 56mUnited Airlines

jue. 12/116:55 amHEL - ONT

2 stops23h 47mUnited Airlines

Deal found 8/14

$1,049

mié. 8/135:05 amONT - HEL

2 stops25h 35mUnited Airlines

mié. 8/206:00 amHEL - ONT

2 stops21h 29mUnited Airlines

Deal found 8/12

$1,050

Best flights from Ontario to Helsinki
Discover carefully curated flight deals from Ontario to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

mié. 10/86:10 amONT - HEL

1 stop18h 35mMultiple Airlines

vie. 10/1712:35 pmHEL - ONT

1 stop16h 27mMultiple Airlines

Deal found 8/14

$790

mié. 1/2810:40 amONT - HEL

2 stops22h 10mUnited Airlines

mié. 2/46:55 amHEL - ONT

2 stops23h 22mUnited Airlines

Deal found 8/14

$796

jue. 9/1110:55 amONT - HEL

1 stop14h 10mAmerican Airlines

jue. 9/2511:55 amHEL - ONT

1 stop16h 59mAmerican Airlines

Deal found 8/12

$1,038

jue. 8/287:00 amONT - HEL

2 stops31h 40mUnited Airlines

jue. 9/46:10 amHEL - ONT

2 stops21h 19mUnited Airlines

Deal found 8/13

$968

vie. 12/128:48 amONT - HEL

2 stops19h 07mMultiple Airlines

dom. 12/2112:30 pmHEL - ONT

2 stops19h 12mMultiple Airlines

Deal found 8/14

$982

jue. 12/41:34 pmONT - HEL

2 stops16h 56mUnited Airlines

jue. 12/116:55 amHEL - ONT

2 stops23h 47mUnited Airlines

Deal found 8/14

$1,049

Last-minute flights from Ontario to Helsinki
Discover last-minute flight deals from Ontario to Helsinki. Data last updated agosto 14, 2025 and is based on user searches.

sáb. 8/161:34 pmONT - HEL

2 stops17h 16mUnited Airlines

vie. 8/221:35 pmHEL - ONT

2 stops42h 55mUnited Airlines

Deal found 8/13

$959

sáb. 8/161:34 pmONT - HEL

2 stops17h 16mUnited Airlines

mié. 8/206:10 amHEL - ONT

2 stops24h 33mUnited Airlines

Deal found 8/13

$1,009

dom. 8/175:05 amONT - HEL

2 stops33h 35mUnited Airlines

vie. 8/226:00 amHEL - ONT

2 stops21h 29mUnited Airlines

Deal found 8/13

$970

mar. 8/197:00 amONT - HEL

2 stops25h 55mUnited Airlines

mar. 8/266:00 amHEL - ONT

2 stops40h 13mUnited Airlines

Deal found 8/14

$1,052

mar. 8/197:00 amONT - HEL

2 stops19h 50mUnited Airlines

mié. 8/276:00 amHEL - ONT

2 stops21h 29mUnited Airlines

Deal found 8/14

$1,284

mar. 8/1912:20 pmONT - HEL

2 stops15h 40mMultiple Airlines

mar. 9/233:00 pmHEL - ONT

2 stops17h 05mMultiple Airlines

Deal found 8/12

$1,676

jue. 8/211:15 pmONT - HEL

2 stops36h 35mUnited Airlines

jue. 8/286:00 amHEL - ONT

2 stops40h 13mUnited Airlines

Deal found 8/12

$1,008

vie. 8/225:10 amONT - HEL

2 stops25h 55mUnited Airlines

vie. 8/296:00 amHEL - ONT

2 stops24h 43mUnited Airlines

Deal found 8/12

$1,314

jue. 8/287:00 amONT - HEL

2 stops31h 40mUnited Airlines

jue. 9/46:10 amHEL - ONT

2 stops21h 19mUnited Airlines

Deal found 8/13

$968

jue. 8/285:10 amONT - HEL

2 stops25h 30mUnited Airlines

dom. 8/316:10 amHEL - ONT

2 stops26h 20mUnited Airlines

Deal found 8/13

$1,088

jue. 8/282:31 pmONT - HEL

1 stop14h 29mAmerican Airlines

jue. 9/44:50 pmHEL - ONT

1 stop15h 43mAmerican Airlines

Deal found 8/13

$1,312

jue. 9/1110:55 amONT - HEL

1 stop14h 10mAmerican Airlines

jue. 9/2511:55 amHEL - ONT

1 stop16h 59mAmerican Airlines

Deal found 8/12

$1,038

One-way flights from Ontario to Helsinki
Search for one-way flight options from Ontario to Helsinki. Find affordable one-way fares based on user searches. Data last updated agosto 14, 2025.

mié. 12/243:06 pmONT - HEL

2 stops20h 04mBritish Airways

Deal found 8/12

$527

mié. 12/2411:00 amONT - HEL

1 stop13h 45mMultiple Airlines

Deal found 8/12

$533

dom. 9/146:04 amONT - HEL

2 stops24h 36mUnited Airlines

Deal found 8/13

$554

sáb. 8/304:54 pmONT - HEL

2 stops18h 06mBritish Airways

Deal found 8/14

$577

vie. 8/226:00 amONT - HEL

2 stops25h 05mUnited Airlines

Deal found 8/14

$604

sáb. 8/301:19 pmONT - HEL

2 stops49h 21mUnited Airlines

Deal found 8/12

$674

jue. 8/286:00 amONT - HEL

2 stops24h 40mUnited Airlines

Deal found 8/13

$760

dom. 9/1412:45 pmONT - HEL

2 stops19h 05mAmerican Airlines

Deal found 8/14

$1,225

lun. 9/1512:45 pmONT - HEL

2 stops19h 05mBritish Airways

Deal found 8/14

$1,226

dom. 9/144:45 pmONT - HEL

2 stops18h 15mBritish Airways

Deal found 8/14

$1,550

jue. 9/116:10 amONT - HEL

2 stops18h 55mAmerican Airlines

Deal found 8/14

$1,629

mar. 9/94:45 pmONT - HEL

2 stops18h 15mBritish Airways

Deal found 8/14

$1,856

Fly from

Fly to

Route

Depart

Return

Price

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

mié. 10/8

6:10 am-10:45 am

1 stop18h 35m

Helsinki-Vantaa

vie. 10/17

12:35 pm-7:02 pm

1 stop16h 27m

$790

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

mié. 1/28

10:40 am-6:50 pm

2 stops22h 10m

Helsinki-Vantaa

mié. 2/4

6:55 am-8:17 pm

2 stops23h 22m

$796

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

jue. 8/28

7:00 am-12:40 am

2 stops31h 40m

Helsinki-Vantaa

jue. 9/4

6:10 am-5:29 pm

2 stops21h 19m

$968

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

vie. 12/12

8:48 am-1:55 pm

2 stops19h 07m

Helsinki-Vantaa

dom. 12/21

12:30 pm-9:42 pm

2 stops19h 12m

$982

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

jue. 9/11

10:55 am-11:05 am

1 stop14h 10m

Helsinki-Vantaa

jue. 9/25

11:55 am-6:54 pm

1 stop16h 59m

$1,038

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

jue. 12/4

1:34 pm-4:30 pm

2 stops16h 56m

Helsinki-Vantaa

jue. 12/11

6:55 am-8:42 pm

2 stops23h 47m

$1,049

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

mié. 12/24

3:06 pm-9:10 pm

2 stops20h 04m

$527

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

mié. 12/24

11:00 am-10:45 am

1 stop13h 45m

$533

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

dom. 9/14

6:04 am-4:40 pm

2 stops24h 36m

$554

OntarioHelsinki

ONT - HEL

ONTHEL

Ontario

sáb. 8/30

4:54 pm-9:00 pm

2 stops18h 06m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 15 results

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?

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

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

Vantaa

Lahti

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$527+ 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Helsinki with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Helsinki

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Helsinki

Cheapest flights from Ontario to HelsinkiExplore 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 agosto 14, 2025.

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 agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Helsinki that are best for you.

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.

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?

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 agosto 14, 2025.

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.

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

How can I find direct flights from Ontario to Helsinki?

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

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

Traveling to a place near Helsinki?

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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 agosto 14, 2025.