$80 Cheap Flights from Trenton (TTN) to Raleigh (RDU)

View $80 flight on Fri, Oct 24, 2025Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Raleigh-Durham International Airport (RDU)

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Cheap Flights from Trenton to Raleigh (TTN-RDU)

Prices were available within the past 7 days and start at $80 for one-way flights and $139 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Feb 25 - Sat, Feb 28
TTN
Trenton
RDU
Raleigh
$139 Roundtrip, found 17 hours ago
$139
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Feb 25 from Trenton to Raleigh, returning Sat, Feb 28, priced at $139 found 17 hours ago
American Airlines
Wed, Nov 5 - Tue, Nov 11
TTN
Trenton
RDU
Raleigh
$159 Roundtrip, found 3 hours ago
$159
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Nov 5 from Trenton to Raleigh, returning Tue, Nov 11, priced at $159 found 3 hours ago
Frontier Airlines
Sat, Oct 25 - Sun, Nov 2
TTN
Trenton
RDU
Raleigh
$160 Roundtrip, found 4 hours ago
$160
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Trenton to Raleigh, returning Sun, Nov 2, priced at $160 found 4 hours ago
Frontier Airlines
Thu, Oct 23 - Fri, Oct 24
TTN
Trenton
RDU
Raleigh
$165 Roundtrip, found 2 hours ago
$165
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Oct 23 from Trenton to Raleigh, returning Fri, Oct 24, priced at $165 found 2 hours ago
American Airlines
Sat, Nov 1 - Tue, Nov 4
TTN
Trenton
RDU
Raleigh
$169 Roundtrip, found 8 hours ago
$169
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Sat, Nov 1 from Trenton to Raleigh, returning Tue, Nov 4, priced at $169 found 8 hours ago
American Airlines
Fri, Oct 31 - Sat, Nov 1
TTN
Trenton
RDU
Raleigh
$178 Roundtrip, just found
$178
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Raleigh, returning Sat, Nov 1, priced at $178 just found
Frontier Airlines
Sat, Oct 25 - Fri, Oct 31
TTN
Trenton
RDU
Raleigh
$179 Roundtrip, found 4 hours ago
$179
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Trenton to Raleigh, returning Fri, Oct 31, priced at $179 found 4 hours ago
Frontier Airlines
Fri, Oct 24 - Mon, Nov 3
TTN
Trenton
RDU
Raleigh
$184 Roundtrip, found 4 hours ago
$184
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Trenton to Raleigh, returning Mon, Nov 3, priced at $184 found 4 hours ago
American Airlines
Sat, Oct 25 - Mon, Oct 27
TTN
Trenton
RDU
Raleigh
$188 Roundtrip, found 5 hours ago
$188
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Trenton to Raleigh, returning Mon, Oct 27, priced at $188 found 5 hours ago
Frontier Airlines
Fri, Oct 17 - Mon, Oct 27
TTN
Trenton
RDU
Raleigh
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Trenton to Raleigh, returning Mon, Oct 27, priced at $190 found 1 day ago

Find the cheapest month to fly from Trenton (TTN) to Raleigh (RDU)

February is typically the cheapest month to fly

From $120 - $555 per traveler.

Alternative airports near Raleigh

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

Select flight to Raleigh - Durham Intl. RDU. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $303
RDU
Raleigh - Durham Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $303
Flights from Trenton (TTN) to Raleigh (RDU)
Origin airport
Mercer
Destination airport
Raleigh - Durham Intl.
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$138
Distance
372 mi

Trenton to Raleigh Flights

The cheapest times to fly from Trenton to Raleigh

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

 

The best time to book a flight from Trenton to Raleigh

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

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 Raleigh in 2025. You can also book with separate airlines for your outbound and return journeys, from $80 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 Raleigh 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 Raleigh 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.

 

Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU) cost?
Get a cheap one-way flight from $80 or cheap return flight from $139 from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU)?
February is the least expensive month to fly from TTN to RDU. Planning your trip for the off-season is often the key to scoring lower fares.
Which airlines fly direct from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU)?
There are no direct flights from Trenton, NJ (TTN-Mercer) to Raleigh - Durham Intl. Airport (RDU). However, there are other airports that have nonstop flights. Start your journey at Liberty Intl. Airport (EWR) and travel straight to Raleigh without any detours.
What is the cheapest airline that flies from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest TTN to RDU flight.
How many flights per day from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU)?
Direct flights from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TTN to RDU?
You'll typically 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 Raleigh - Durham Intl. Airport (RDU)?
Opt for a flight from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Raleigh - Durham Intl. Airport (RDU) last-minute?
Last-minute fares from TTN to RDU are generally more expensive. To secure the best prices, start looking for flights well in advance. That said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a TTN to RDU flight and hotel package?
You can save money by booking a TTN to RDU flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your ideal accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Raleigh - Durham Intl. Airport (RDU)?
It's generally possible to reschedule or cancel your TTN to RDU flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.