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TTN - ONT

$180 Find Cheap Flights from Trenton to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Trenton to Ontario (TTN-ONT)

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

Recent round-trip flight deals from Trenton to Ontario

Thu, Dec 10 - Mon, Dec 21
Frontier Logo
11:03 am - 12:20 amTTN  Trenton-Mercer-ONT Ontario
16h 17m2 stops Orlando Denver Intl
Frontier Logo
4:46 pm - 10:28 amONT  Ontario-TTN Trenton-Mercer
14h 42m2 stops Denver Intl Orlando
$675Frontier
Sun, Oct 11 - Thu, Oct 15
Frontier Logo
7:39 pm - 10:29 amTTN  Trenton-Mercer-ONT Ontario
17h 50m2 stops Orlando Denver Intl
Frontier Logo
8:03 pm - 6:54 pmONT  Ontario-TTN Trenton-Mercer
19h 51m2 stops Dallas/Fort Worth Orlando
$799Frontier
Fri, Nov 6 - Sun, Nov 8
Frontier Logo
8:01 pm - 11:51 pmTTN  Trenton-Mercer-ONT Ontario
30h 50m2 stops Orlando Denver Intl
Frontier Logo
2:23 pm - 7:15 pmONT  Ontario-TTN Trenton-Mercer
25h 52m2 stops Las Vegas Harry Reid Intl Orlando
$876Frontier
Booking Insights

Price, demand and travel trends for Trenton to Ontario 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 Trenton to Ontario?

Frontier ($675) offered the cheapest round-trip ticket from Trenton to Ontario in the last 5 days.

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Key details for Trenton to Ontario flights

Cheapest flight

$180
One-way flight from Trenton to Ontario

When to book flights from Trenton to Ontario

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

Your Trenton to Ontario 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 Trenton to Ontario?

    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 Trenton to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $675 to $876. That means the highest observed fare was about 29% higher than the lowest one.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

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

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

  • What is the time difference between Trenton and Ontario?

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

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Trenton to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Trenton to Ontario

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

Car rentals in Ontario
Hotels in Ontario
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