In terms of precipitation, rainfall in Trenton, New Jersey ranges from 2.9 - 4.8 inches per month. July is typically the wettest month, when rainfall can reach 4.8 in. February is typically the driest time to visit Trenton, New Jersey when rainfall is around 2.9 in.

If weather is an important factor for your trip to Trenton, New Jersey, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

How far in advance should I book a flight from Ontario to Trenton, New Jersey?

Users have found that booking a flight from Ontario to Trenton, New Jersey at least 61 days early can save you up to 82% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Ontario to Trenton, New Jersey for as little as $397 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $654 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to Trenton, New Jersey?

January can be a great time to fly to Trenton, New Jersey from Ontario with a flight ticket averaging about $350. Cheapflights users have found deals in the month of January for as cheap as $137. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from ONT to TTN?

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

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

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

How can I find direct flights from Ontario to Trenton?

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

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

Yes. Cheapflights offers flight deals from Ontario to Trenton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$182+ Flights from Ontario to Trenton, NJ

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Cheap flight deals from Ontario to Trenton

Round-trip from	$403 (Travelocity)
One-way from	$182 (Frontier)
Popular in	December
Cheapest in	January
Average price	$399

From Ontario to Trenton-Mercer

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One-way flight from Ontario to Trenton-Mercer

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Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Ontario to Trenton

Cheapest flights from Ontario to Trenton
Explore the most affordable flight options available from Ontario to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Thu 9/187:30 pmONT - TTN

2 stops13h 04mFrontier

Mon 9/2212:30 pmTTN - ONT

2 stops14h 08mFrontier

Deal found 6/30

$403

Best flights from Ontario to Trenton
Discover carefully curated flight deals from Ontario to Trenton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Thu 9/187:30 pmONT - TTN

2 stops13h 04mFrontier

Mon 9/2212:30 pmTTN - ONT

2 stops14h 08mFrontier

Deal found 6/30

$403

Last-minute flights from Ontario to Trenton
Discover last-minute flight deals from Ontario to Trenton. Data last updated June 30, 2025 and is based on user searches.

Wed 7/97:22 pmONT - TTN

2 stops12h 44mFrontier

Wed 7/168:30 amTTN - ONT

2 stops18h 20mFrontier

Deal found 6/30

$552

Mon 7/145:21 pmONT - TTN

2 stops20h 02mFrontier

Mon 7/2112:48 pmTTN - ONT

2 stops14h 02mFrontier

Deal found 6/30

$469

One-way flights from Ontario to Trenton
Search for one-way flight options from Ontario to Trenton. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Thu 9/46:56 pmONT - TTN

2 stops13h 38mFrontier

Deal found 6/30

$182

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioTrenton

ONT - TTN

ONTTTN

Ontario

Thu 9/18

7:30 pm-11:34 am

2 stops13h 04m

Trenton-Mercer

Mon 9/22

12:30 pm-11:38 pm

2 stops14h 08m

$403

OntarioTrenton

ONT - TTN

ONTTTN

Ontario

Thu 9/4

6:56 pm-11:34 am

2 stops13h 38m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Ontario to Trenton

Have a flexible travel schedule? Discover the best time to fly to Trenton 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 Trenton

What is the cheapest month to book a flight from Ontario to Trenton, New Jersey?

Currently, January is the cheapest month in which you can book a flight from Ontario to Trenton, New Jersey (average of $73). Flying from Ontario to Trenton, New Jersey in June is currently the most expensive (average of $153). 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 Trenton

Read reviews from past customers who have flown Frontier from Ontario to Trenton. 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.

Frontier

5.9

Fair

3,290 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Frontier

5.9

Fair

3,290 reviews

Frontier

5.9

Fair

3,290 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

Related info for your journey

Can I find deals for flights from Ontario to Trenton that include hotel bookings?
Yes. In addition to deals on Ontario to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Trenton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Trenton.
Can I find deals for business class flights from Ontario to Trenton?
Yes. Cheapflights offers flight deals from Ontario to Trenton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to Trenton, New Jersey?
Currently, January is the cheapest month in which you can book a flight from Ontario to Trenton, New Jersey (average of $73). Flying from Ontario to Trenton, New Jersey in June is currently the most expensive (average of $153). 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.

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$182+ Cheap flights from Ontario to Trenton, NJ (ONT - TTN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Trenton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Trenton

Round-trip from

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Popular in

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Find flight deals from Ontario to Trenton

Cheapest flights from Ontario to TrentonExplore the most affordable flight options available from Ontario to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Explore the most affordable flight options available from Ontario to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Trenton

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Trenton

What is the cheapest month to book a flight from Ontario to Trenton, New Jersey?

Reviews of airlines servicing Trenton

Read reviews from past customers who have flown Frontier from Ontario to Trenton. 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Trenton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How can I find direct flights from Ontario to Trenton?

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

What is the cheapest month to book a flight from Ontario to Trenton, New Jersey?

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Cheapest flights from Ontario to Trenton
Explore the most affordable flight options available from Ontario to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.