How long is the flight from Watertown, New York to Ontario?

For as low as $486, American Airlines can have you in Ontario from Watertown, New York in 12h 31m. Airlines will cover a distance of 2306 mi.

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 ART to ONT?

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

Most accurate provider : When it comes to deals on Watertown, New York-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Watertown, New York-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Watertown, New York-Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Watertown, New York-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Watertown, New York-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Yes. In addition to deals on Watertown to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Watertown to Ontario?

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

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

Yes. Cheapflights offers flight deals from Watertown 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.

$486+ Cheap Flights from Watertown, NY to Ontario

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Cheap flight deals from Watertown to Ontario

Best

Best flights from Watertown to Ontario
Discover carefully curated flight deals from Watertown to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Tue 2/166:00 am -

2 stops12h 31m

Tue 2/234:25 pm -

2 stops22h 36m

Deal found 10/29

$486

Find flight deals from Watertown to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$486 (American Airlines)
Popular in	June
Cheapest in	February
Average price	$454

Provider with most accurate pricing for Watertown-Ontario flight deals.

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Provider most trusted by Cheapflights users for Watertown-Ontario flights.

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From Watertown to Ontario

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Highest demand for flights based on searches. 14% potential increase in price ($98 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

WatertownOntario

ART Watertown - ONT Ontario

ARTONT

Watertown

Tue 2/16

6:00 am-3:31 pm

2 stops12h 31m

Ontario

Tue 2/23

4:25 pm-6:01 pm

2 stops22h 36m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Sorted by cheapest first

Most accurate provider: When it comes to deals on Watertown, New York-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Watertown, New York-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Watertown, New York-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Watertown, New York-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Watertown, New York-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Watertown to Ontario

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

ART-ONT

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.

Related info for your journey

How long is the flight from Watertown, New York to Ontario?
For as low as $486, American Airlines can have you in Ontario from Watertown, New York in 12h 31m. Airlines will cover a distance of 2306 mi.
Can I find deals for flights from Watertown to Ontario that include hotel bookings?
Yes. In addition to deals on Watertown to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Watertown to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Watertown to Ontario.
Can I find deals for business class flights from Watertown to Ontario?
Yes. Cheapflights offers flight deals from Watertown 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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$486+ Cheap flights from Watertown, NY to Ontario (ART - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Watertown to Ontario with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Watertown to Ontario

Best flights from Watertown to OntarioDiscover carefully curated flight deals from Watertown to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Discover carefully curated flight deals from Watertown to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Find flight deals from Watertown to Ontario

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Round-trip from

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

Best time to book a flight from Watertown to Ontario

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

Related info for your journey

How long is the flight from Watertown, New York to Ontario?

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

How can I find direct flights from Watertown to Ontario?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Watertown to Ontario

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Complete your trip

Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Watertown to Ontario by cabin class

Find flights from Watertown to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ontario

Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.

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Best flights from Watertown to Ontario
Discover carefully curated flight deals from Watertown to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.