$76 Cheap Flights from Phoenix (PHX) to Trenton (TTN)

View $76 flight on Thu, Nov 20, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Trenton–Mercer Airport (TTN)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Phoenix to Trenton (PHX-TTN)

Prices were available within the past 7 days and start at $76 for one-way flights and $221 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Nov 20 - Thu, Nov 27
PHX
Phoenix
TTN
Trenton
$221 Roundtrip, just found
$221
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 20 from Phoenix to Trenton, returning Thu, Nov 27, priced at $221 just found
Frontier Airlines
Thu, Nov 20 - Tue, Nov 25
PHX
Phoenix
TTN
Trenton
$238 Roundtrip, found 16 hours ago
$238
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Phoenix to Trenton, returning Tue, Nov 25, priced at $238 found 16 hours ago
Frontier Airlines
Thu, Nov 20 - Tue, Nov 25
PHX
Phoenix
TTN
Trenton
$242 Roundtrip, found 3 days ago
$242
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Phoenix to Trenton, returning Tue, Nov 25, priced at $242 found 3 days ago
Frontier Airlines
Thu, Nov 20 - Sat, Nov 22
PHX
Phoenix
TTN
Trenton
$253 Roundtrip, found 3 days ago
$253
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Phoenix to Trenton, returning Sat, Nov 22, priced at $253 found 3 days ago
Frontier Airlines
Thu, Nov 20 - Mon, Nov 24
PHX
Phoenix
TTN
Trenton
$317 Roundtrip, found 4 days ago
$317
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Phoenix to Trenton, returning Mon, Nov 24, priced at $317 found 4 days ago
Frontier Airlines
Fri, Nov 21 - Mon, Nov 24
PHX
Phoenix
TTN
Trenton
$319 Roundtrip, found 18 hours ago
$319
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Fri, Nov 21 from Phoenix to Trenton, returning Mon, Nov 24, priced at $319 found 18 hours ago
Frontier Airlines
Wed, Nov 26 - Thu, Nov 27
PHX
Phoenix
TTN
Trenton
$323 Roundtrip, found 9 hours ago
$323
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, Nov 26 from Phoenix to Trenton, returning Thu, Nov 27, priced at $323 found 9 hours ago
Frontier Airlines
Thu, Nov 20 - Mon, Dec 1
PHX
Phoenix
TTN
Trenton
$325 Roundtrip, found 6 days ago
$325
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Phoenix to Trenton, returning Mon, Dec 1, priced at $325 found 6 days ago
Frontier Airlines
Wed, Nov 26 - Sun, Nov 30
PHX
Phoenix
TTN
Trenton
$330 Roundtrip, found 14 hours ago
$330
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Wed, Nov 26 from Phoenix to Trenton, returning Sun, Nov 30, priced at $330 found 14 hours ago
American Airlines
Mon, Jan 12 - Wed, Jan 14
PHX
Phoenix
TTN
Trenton
$363 Roundtrip, found 4 days ago
$363
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Jan 12 from Phoenix to Trenton, returning Wed, Jan 14, priced at $363 found 4 days ago

Alternative airports near Trenton

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Mercer TTN. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $431
TTN
Mercer
CheapestClosest
Average driving time to city center10 min
Flights from $431

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN) cost?
Get a cheap one-way flight from $76 or cheap return flight from $221 from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN)?
The cheapest month to fly from PHX to TTN is November, when there's less demand. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest PHX to TTN flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN)?
There aren't any daily direct flights departing from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from PHX to TTN?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN)?
To land at Mercer Airport (TTN) on schedule, opt for a flight that takes off from Sky Harbor Intl. Airport (PHX) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
What airports do you fly into for Trenton from Sky Harbor Intl. Airport (PHX)?
You'll touch down at Liberty Intl. Airport (EWR) or Philadelphia Intl. Airport (PHL) when you travel to Trenton on a direct flight from Sky Harbor Intl. Airport (PHX).
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN) last-minute?
Booking your plane ticket from PHX to TTN shortly before your journey is usually more expensive. However, if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a PHX to TTN flight and hotel package?
Opting for a PHX to TTN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our extensive range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Mercer Airport (TTN)?
If you reserved your PHX to TTN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Mercer
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$221
Distance
2093 mi

Book with confidence

Phoenix to Trenton Flights

The cheapest times to fly from Phoenix to Trenton

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 Phoenix to Trenton are during the month of November. You can find some of the cheapest flights from Phoenix to Trenton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Trenton

Sunday is one of the best days to book for cheap flights from Phoenix to Trenton: 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 Phoenix to Trenton

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 Phoenix to Trenton in 2025. You can also book with separate airlines for your outbound and return journeys, from $76 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 Phoenix to Trenton 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 Phoenix to Trenton 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.

 

Phoenix to Trenton Flights

Explore a world of travel with Expedia

*Available to One Key members.