Cheap Flights from Trenton (TTN) to Princeton (PCT)

Popular airlines from Trenton–Mercer Airport (TTN) to Princeton, NJ (PCT)

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Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Princeton, NJ (PCT) cost?
Lock in a cheap one-way flight or cheap return flight from Mercer Airport (TTN) to Princeton, NJ (PCT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Princeton, NJ (PCT)?
The cheapest month to fly from TTN to PCT is , when demand is low. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Mercer Airport (TTN) to Princeton, NJ (PCT)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest TTN to PCT flight.
How many flights per day from Mercer Airport (TTN) to Princeton, NJ (PCT)?
Direct flights from Mercer Airport (TTN) to Princeton, NJ (PCT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TTN to PCT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Mercer Airport (TTN) to Princeton, NJ (PCT)?
To arrive at Princeton, NJ (PCT) on schedule, pick a flight that leaves from Mercer Airport (TTN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Mercer Airport (TTN) to Princeton, NJ (PCT) last-minute?
Last-minute bookings from TTN to PCT are usually more expensive. For the lowest rates, start looking for flights early. That said, if you're flexible with your travel plans, you may land a cheap fare right before your trip.
Is it cheaper to book a TTN to PCT flight and hotel package?
You can save money by booking a TTN to PCT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After selecting your preferred accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Princeton, NJ (PCT)?
If you booked your TTN to PCT flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Mercer
Destination airport
Princeton
Distance
11 mi

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Trenton to Princeton Flights

The cheapest times to fly from Trenton to Princeton

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Trenton to Princeton are during the month of . You can find some of the cheapest flights from Trenton to Princeton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trenton to Princeton

Sunday is one of the best days to book for cheap flights from Trenton to Princeton: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Trenton to Princeton

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Trenton to Princeton in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Trenton to Princeton flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Trenton to Princeton airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Trenton to Princeton Flights

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*Available to One Key members.