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).

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

When flying from San Diego to Trenton, New Jersey, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on San Diego-Trenton, New Jersey flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Trenton, New Jersey flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Trenton, New Jersey flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Diego-Trenton, New Jersey flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Trenton, New Jersey flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from San Diego to Trenton?

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

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

Yes. Cheapflights offers flight deals from San Diego 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.

$119+ Flights from San Diego to Trenton, NJ

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Cheap flight deals from San Diego to Trenton

One-way flights from San Diego to Trenton
Search for one-way flight options from San Diego to Trenton. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Thu 1/156:54 amSAN - TTN

2 stops35h 10mFrontier

Deal found 12/18

$119

Thu 1/159:16 amSAN - TTN

3 stops35h 23mMultiple Airlines

Deal found 12/18

$136

Find flight deals from San Diego to Trenton

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Popular in	December
Cheapest in	January
Average price	$440

Provider with most accurate pricing for San Diego-Trenton-Mercer flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Diego-Trenton-Mercer flights.

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

San DiegoTrenton

SAN - TTN

SANTTN

San Diego

Thu 1/15

6:54 am-9:04 pm

2 stops35h 10m

$119

San DiegoTrenton

SAN - TTN

SANTTN

San Diego

Thu 1/15

9:16 am-11:39 pm

3 stops35h 23m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Compare providers for flights from San Diego to Trenton

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Trenton in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Diego-Trenton, New Jersey flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Trenton, New Jersey flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Trenton, New Jersey flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Diego-Trenton, New Jersey flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Trenton, New Jersey flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to Trenton

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

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

Currently, June is the cheapest month in which you can book a flight from San Diego to Trenton, New Jersey (average of $78). Flying from San Diego to Trenton, New Jersey in November is currently the most expensive (average of $157). 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.

Related info for your journey

Can I find deals for flights from San Diego to Trenton that include hotel bookings?
Yes. In addition to deals on San Diego to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Diego to Trenton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Trenton.
Can I find deals for business class flights from San Diego to Trenton?
Yes. Cheapflights offers flight deals from San Diego 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 San Diego to Trenton, New Jersey?
Currently, June is the cheapest month in which you can book a flight from San Diego to Trenton, New Jersey (average of $78). Flying from San Diego to Trenton, New Jersey in November is currently the most expensive (average of $157). 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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$119+ Cheap flights from San Diego to Trenton, NJ (SAN - 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego 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 San Diego to Trenton

One-way flights from San Diego to TrentonSearch for one-way flight options from San Diego to Trenton. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Search for one-way flight options from San Diego to Trenton. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Find flight deals from San Diego to Trenton

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from San Diego to Trenton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Trenton in December.

Best time to book a flight from San Diego to Trenton

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

Cheapflights Insights

Everything you need to know about your flight from San Diego to Trenton

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

Related info for your journey

Find useful and relevant information for your journey from San Diego 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 San Diego to Trenton that include hotel bookings?

How can I find direct flights from San Diego to Trenton?

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

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

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One-way flights from San Diego to Trenton
Search for one-way flight options from San Diego to Trenton. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.