ONT - ART

$1,274 Find Cheap Flights from Ontario to Watertown - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Ontario to Watertown (ONT-ART)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Watertown

Sun, Nov 15 - Thu, Nov 19
American Airlines Logo
11:59 pm - 5:21 pmONT  Ontario-ART Watertown
14h 22m2 stops Dallas/Fort Worth Philadelphia
American Airlines Logo
6:00 am - 3:35 pmART  Watertown-ONT Ontario
12h 35m2 stops Philadelphia Phoenix Sky Harbor Intl
$1,274American Airlines
Sun, Nov 15 - Thu, Nov 19
American Airlines Logo
7:00 am - 10:55 pmONT  Ontario-ART Watertown
12h 55m3 stops Dallas/Fort Worth Nashville Intl Philadelphia
American Airlines Logo
6:00 am - 3:35 pmART  Watertown-ONT Ontario
12h 35m2 stops Philadelphia Phoenix Sky Harbor Intl
$1,481American Airlines
Booking Insights

Price, demand and travel trends for Ontario to Watertown flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Ontario to Watertown?

American Airlines ($1,274) offered the cheapest round-trip ticket from Ontario to Watertown in the last 5 days.

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Key details for Ontario to Watertown flights

Cheapest flight

$1,274
Round-trip flight from Ontario to Watertown

When to book flights from Ontario to Watertown

Are your dates flexible? Find out the best times to travel from Ontario to Watertown based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Watertown flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Do I need a passport to fly from Ontario to Watertown?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • Have flight prices from Ontario to Watertown changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $1,274 to $1,481. That means the highest observed fare was about 16% higher than the lowest one.

  • Which airports can I use when flying from Ontario to Watertown?

    Flights from Ontario to Watertown usually depart from Ontario (ONT) and arrive at Watertown (ART).

  • What is the time difference between Ontario and Watertown?

    Watertown is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

More options for your flight from Ontario to Watertown

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