Cheap Flights from Raleigh / Durham to Philadelphia Trenton-Mercer

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Flight deals from Raleigh / Durham to Philadelphia Trenton-Mercer

Looking for a cheap last-minute deal or the best return flight from Raleigh / Durham to Philadelphia Trenton-Mercer? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Raleigh / Durham to Philadelphia Trenton-Mercer

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to Philadelphia Trenton-Mercer flights are currently cheapest in May.

Raleigh / Durham to Philadelphia Trenton-Mercer: Alternative routes

Compare routes from Raleigh / Durham to Philadelphia below. You may find an airport to fly into that's cheaper, faster, or easier than Philadelphia Trenton-Mercer.

Durham to Philadelphia: Flight information

The things to know before you go.
Cheapest flight found149 €
Cheapest month to flyMay

Finding cheap flights from Raleigh / Durham to Philadelphia Trenton-Mercer: Frequently asked questions

The best price we found for a return flight from Raleigh / Durham to Philadelphia Trenton-Mercer is 149 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Raleigh / Durham to Philadelphia Trenton-Mercer. But we found flights with one or more stops from 149 €.
As of May 2025, there are no flights flying from Raleigh / Durham to Philadelphia Trenton-Mercer.
The cheapest month to fly from Raleigh / Durham to Philadelphia Trenton-Mercer is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Philadelphia Trenton-Mercer Airport on Tuesday, 13 May 2025.
No airlines currently offer direct flights between Raleigh / Durham Airport and Philadelphia Trenton-Mercer Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Philadelphia Trenton-Mercer but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Philadelphia Trenton-Mercer.

Flying from Raleigh-Durham International Airport (RDU) to Trenton-Mercer Airport (TTN): what you need to know

  • Book a direct flight from Raleigh-Durham International Airport to Trenton-Mercer Airport and you'll be in the air for an average of 1 hour 30 minutes.

  • Durham and Philadelphia follow the same timezone, UTC-4.

  • Your RDU to TTN flight won't wait if you're late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak month like July? School holidays and other high seasons can result in longer queues at security. Play it safe and get there up to four hours before an international flight and two hours before a domestic departure.

  • Frontier Airlines is your gateway to exploring Philadelphia (and perhaps some other exciting parts of United States!). Check out the direct flights from Raleigh-Durham International Airport to Trenton-Mercer Airport offered by this carrier.

  • The majority of passengers choose to travel with Frontier Airlines on this route.

  • We make it a cinch to book a flight with a stopover. To see your options for tickets from Raleigh-Durham International Airport to Trenton-Mercer Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to visit your chosen city. Some great stopovers between RDU and TTN include:

    • Hartsfield-Jackson Atlanta International Airport

    • Charlotte Douglas International Airport

    • Orlando International Airport

How to find the cheapest flights from Raleigh-Durham International Airport (RDU) to Trenton-Mercer Airport (TTN)

  • 75 € is currently the lowest price for a one-way Raleigh-Durham International Airport to Trenton-Mercer Airport flight. Return flights start from 149 €. These prices may change based on availability and demand.

  • Score cheap tickets from RDU to TTN by booking at least seven months ahead. According to our research, that's the sweet spot for picking up a bargain.

  • Organise your trip for June. That's the cheapest month for flights from Raleigh-Durham International Airport to Trenton-Mercer Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the lowest price across every month.

  • Stay on top of deals for cheap flights from RDU to TTN by creating a Price Alert. You'll receive an email or notification on the app when a new discounted fare appears.

  • Pick your ideal arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Raleigh-Durham International Airport to Trenton-Mercer Airport.

Handy information about Raleigh-Durham International Airport (RDU)

  • 80.09% of flights leaving Raleigh-Durham International Airport touch down at their destination on time. Given its strong performance rating, you're unlikely to experience delays when flying out of RDU.

  • Raleigh-Durham International Airport is around 23 kilometres from central Durham. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • The trip when using public transport will take about 1 hour 10 minutes.

  • Get your break off to a leisurely start by staying near RDU. Whether you're taking an early flight from Raleigh-Durham International Airport to Trenton-Mercer Airport or want to avoid feeling rushed, these stays are ideal:

Arriving at Trenton-Mercer Airport (TTN)

  • If you're landing on a late Raleigh-Durham International Airport to Trenton-Mercer Airport flight, few things top the convenience of being near the terminal. Grab your luggage from the carousel and then be showered and relaxing shortly after at one of these options near TTN:

  • Follow your own route with a Trenton-Mercer Airport rental car. Pick up a set of wheels from Budget, National or Enterprise and chase adventure across Philadelphia and beyond.

  • Lock in the best possible rate by reserving your vehicle from Trenton-Mercer Airport around four weeks before your departure date.

Getting from Trenton-Mercer Airport (TTN) to central Philadelphia

  • TTN is located at Scotch Road, Terminal Building.

  • From Trenton-Mercer Airport, Philadelphia is approximately 56 kilometres away. It takes around 40 minutes to get to the centre driving.

  • Getting there by public transport takes about 1 hour 45 minutes.

When to fly to Trenton-Mercer Airport (TTN)

  • August is the busiest month for flights from Raleigh-Durham International Airport to Trenton-Mercer Airport. For smaller crowds, go to Philadelphia in April.

  • Before locking in your flight from Raleigh-Durham International Airport to Trenton-Mercer Airport, think about the kind of weather you like. July is the warmest month in Philadelphia, with temperatures ranging from 18ºC (64ºF) to 32ºC (90ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from RDU to TTN in January. Temperatures average between -7ºC (19ºF) and 9ºC (48ºF) then.

Explore more of United States

  • You've seen Philadelphia, now it's time to discover more of United States. Travel around 129 kilometres north-east to New York to check off its popular sights. From Statue of Liberty to Central Park and Empire State Building, you'll have a packed itinerary ahead.

  • If you want to check out another great destination in United States, consider Boston, roughly 434 kilometres north-east of Philadelphia. Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.