$323+ Cheap flights from Ontario to Watertown, NY (ONT - ART)
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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ART
Aug 4 — Aug 111
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Watertown
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Watertown (ART). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2025.
Round-trip from | $323 (American Airlines) |
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Find flight deals from Ontario to Watertown
Cheapest flights from Ontario to WatertownExplore the most affordable flight options available from Ontario to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.
Explore the most affordable flight options available from Ontario to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 12/176:47 amONT - ART
2 stops12h 38mAmerican Airlines
Wed 12/316:19 amART - ONT
2 stops14h 35mAmerican Airlines
Deal found 7/29![American Airlines logo]()
$323
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Watertown 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 July 30, 2025.
Use the filters below to find and compare flights from Ontario to Watertown that are best for you.
Fly from
Ontario
Fly to
Watertown
Route
Depart
Return
Price
OntarioWatertown
ONT - ART
ONTART
Ontario
Wed 12/17
6:47 am-10:25 pm
2 stops12h 38m
Watertown
Wed 12/31
6:19 am-5:54 pm
2 stops14h 35m
$323
OntarioWatertown
ONT - ART
ONTART
Ontario
Mon 8/4
12:59 am-3:05 pm
2 stops11h 06m
$503
OntarioWatertown
ONT - ART
ONTART
Ontario
Thu 8/7
6:00 am-10:43 pm
2 stops13h 43m
$834
Best time to book a flight from Ontario to Watertown
Have a flexible travel schedule? Discover the best time to fly to Watertown 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 Watertown
What is the cheapest month to book a flight from Ontario to Watertown, New York?
Currently, February is the cheapest month in which you can book a flight from Ontario to Watertown, New York (average of $187). Flying from Ontario to Watertown, New York in May is currently the most expensive (average of $423). 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.
Reviews of airlines servicing Watertown
Get insights into the airlines that provide service to Watertown. 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 Watertown. Reviews last updated July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines and American Airlines from Ontario to Watertown. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Ontario to Watertown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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