Which airports can I use when flying from Ontario to Trenton?

Flights from Ontario to Trenton usually depart from Ontario (ONT) and arrive at Trenton-Mercer (TTN).

Do I need a passport to fly from Ontario to Trenton?

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 Trenton changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $658 to $1,107. That means the highest observed fare was about 68% higher than the lowest one.

What is the time difference between Ontario and Trenton?

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

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

Frontier ($658) offered the cheapest round-trip ticket from Ontario to Trenton in the last 5 days.

$182 CHEAP FLIGHTS from Ontario to Trenton (ONT - TTN)

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Flight Deals

Cheap Flights from Ontario to Trenton (ONT-TTN)

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

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One-way

Recent round-trip flight deals from Ontario to Trenton

Thu, Nov 19 - Sun, Nov 22

11:52 am - 10:34 amONT Ontario-TTN Trenton-Mercer

19h 42m2 stops Denver Intl Orlando

9:52 pm - 10:45 amTTN Trenton-Mercer-ONT Ontario

15h 53m2 stops Tampa Denver Intl

$658Frontier

Thu, Nov 19 - Thu, Dec 3

2:23 pm - 10:34 amONT Ontario-TTN Trenton-Mercer

17h 11m2 stops Las Vegas Harry Reid Intl Orlando

11:03 am - 12:17 amTTN Trenton-Mercer-ONT Ontario

16h 14m2 stops Orlando Denver Intl

$805Frontier

Mon, Dec 21 - Thu, Dec 31

9:37 pm - 11:01 amONT Ontario-TTN Trenton-Mercer

10h 24m2 stops Las Vegas Harry Reid Intl Orlando

11:46 am - 12:13 amTTN Trenton-Mercer-ONT Ontario

15h 27m2 stops Orlando Denver Intl

$862Frontier

Wed, Dec 23 - Sun, Dec 27

10:16 am - 11:01 amONT Ontario-TTN Trenton-Mercer

21h 45m2 stops Las Vegas Harry Reid Intl Orlando

11:56 am - 12:13 amTTN Trenton-Mercer-ONT Ontario

15h 17m2 stops Orlando Denver Intl

$1,107Frontier

Booking Insights

Price, demand and travel trends for Ontario to Trenton 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 Trenton?: Frontier ($658) offered the cheapest round-trip ticket from Ontario to Trenton in the last 5 days.

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Cheapest flight	$182

One-way flight from Ontario to Trenton

When to book flights from Ontario to Trenton

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

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Do I need a passport to fly from Ontario to Trenton?
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 Trenton changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $658 to $1,107. That means the highest observed fare was about 68% higher than the lowest one.
Which airports can I use when flying from Ontario to Trenton?
Flights from Ontario to Trenton usually depart from Ontario (ONT) and arrive at Trenton-Mercer (TTN).
What is the time difference between Ontario and Trenton?
Trenton is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

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ONT - TTN

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Everything you should know

Cheap Flights from Ontario to Trenton (ONT-TTN)

Recent round-trip flight deals from Ontario to Trenton

Recent one-way flight deals from Ontario to Trenton

Price, demand and travel trends for Ontario to Trenton flights

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

Key details for Ontario to Trenton flights

Cheapest flight

When to book flights from Ontario to Trenton

Your Ontario to Trenton flight questions, answered

More options for your flight from Ontario to Trenton

Complete your trip to Trenton with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Trenton

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Flights from domestic origins to Trenton

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