In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What is the cheapest time of day to fly from KDT to ONT?

When flying from Cape Cod and the Islands to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Ontario from Cape Cod and the Islands?

Ontario (ONT) is the airport you will fly into if you book a flight from Cape Cod and the Islands to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

How can I find direct flights from Cape Cod and the Islands to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cape Cod and the Islands to Ontario.

Can I find deals for business class flights from Cape Cod and the Islands to Ontario?

Yes. Cheapflights offers flight deals from Cape Cod and the Islands to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$467+ Cheap Flights from Cape Cod and the Islands to Ontario

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Cheap flight deals from Cape Cod and the Islands to Ontario

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Cheapest in	September
Average price	$352

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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

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One-way flights from Cape Cod and the Islands to Ontario
Search for one-way flight options from Cape Cod and the Islands to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.

Mon 11/101:47 pmPVC - ONT

2 stops13h 09mMultiple Airlines

Deal found 10/30

$467

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

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ProvincetownOntario

PVC - ONT

PVCONT

Provincetown

Mon 11/10

1:47 pm-11:56 pm

2 stops13h 09m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Best time to book a flight from Cape Cod and the Islands to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Cape Cod and the Islands with our price prediction graph.

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Everything you need to know about your flight from Cape Cod and the Islands to Ontario

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Related info for your journey

What airport do you fly into for flights to Ontario from Cape Cod and the Islands?
Ontario (ONT) is the airport you will fly into if you book a flight from Cape Cod and the Islands to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.
Can I find deals for flights from Cape Cod and the Islands to Ontario that include hotel bookings?
Yes. In addition to deals on Cape Cod and the Islands to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Cape Cod and the Islands to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cape Cod and the Islands to Ontario.
Can I find deals for business class flights from Cape Cod and the Islands to Ontario?
Yes. Cheapflights offers flight deals from Cape Cod and the Islands to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$467+ Cheap flights from Cape Cod and the Islands to Ontario (ONT)

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Cape Cod and the Islands to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Cape Cod and the Islands to Ontario

Keep the following information in mind while searching for Cape Cod and the Islands to Ontario flight deals. Data was last updated October 30, 2025.

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Find flight deals from Cape Cod and the Islands to Ontario

One-way flights from Cape Cod and the Islands to OntarioSearch for one-way flight options from Cape Cod and the Islands to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.

Search for one-way flight options from Cape Cod and the Islands to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Cape Cod and the Islands to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Cape Cod and the Islands with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Cape Cod and the Islands to Ontario

Related info for your journey

Find useful and relevant information for your journey from Cape Cod and the Islands to Ontario. 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 into for flights to Ontario from Cape Cod and the Islands?

Can I find deals for flights from Cape Cod and the Islands to Ontario that include hotel bookings?

How can I find direct flights from Cape Cod and the Islands to Ontario?

Can I find deals for business class flights from Cape Cod and the Islands to Ontario?

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One-way flights from Cape Cod and the Islands to Ontario
Search for one-way flight options from Cape Cod and the Islands to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.