Cheap Flights to Philadelphia Trenton-Mercer from £360 Return

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Flight deals to Philadelphia Trenton-Mercer Airport

Looking for a cheap last-minute deal or the best return flight to Philadelphia Trenton-Mercer Airport? If you want to travel to Philadelphia Trenton-Mercer Airport next month, return fares start from £402. Find the lowest prices on one-way and return tickets right here.

Philadelphia.£360 per passenger.Departing Fri, 27 Feb, returning Mon, 2 Mar.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Fri, 27 Feb, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Mon, 2 Mar, arriving in London Gatwick.Price includes taxes and charges.From £360, select.

Philadelphia.£402 per passenger.Departing Thu, 15 Jan, returning Sat, 24 Jan.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Thu, 15 Jan, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Sat, 24 Jan, arriving in London Gatwick.Price includes taxes and charges.From £402, select.

Philadelphia.£469 per passenger.Departing Mon, 2 Mar, returning Fri, 20 Mar.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Mon, 2 Mar, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Fri, 20 Mar, arriving in London Gatwick.Price includes taxes and charges.From £469, select.

Philadelphia.£473 per passenger.Departing Thu, 15 Jan, returning Thu, 19 Feb.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Thu, 15 Jan, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Thu, 19 Feb, arriving in London Gatwick.Price includes taxes and charges.From £473, select.

Philadelphia.£556 per passenger.Departing Fri, 12 Dec, returning Sun, 14 Dec.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Fri, 12 Dec, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Sun, 14 Dec, arriving in London Gatwick.Price includes taxes and charges.From £556, select.

Philadelphia.£713 per passenger.Departing Mon, 15 Dec, returning Tue, 20 Jan.Return flight with British Airways and Frontier Airlines.Outbound indirect flight with British Airways, departs from London Heathrow on Mon, 15 Dec, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Tue, 20 Jan, arriving in London Gatwick.Price includes taxes and charges.From £713, select.

Philadelphia.£751 per passenger.Departing Wed, 18 Mar, returning Thu, 9 Apr.Return flight with Icelandair and Allegiant Air.Outbound indirect flight with Icelandair, departs from Glasgow Intl on Wed, 18 Mar, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Allegiant Air, departs from Philadelphia Trenton-Mercer on Thu, 9 Apr, arriving in Glasgow Intl.Price includes taxes and charges.From £751, select.

Philadelphia.£1,149 per passenger.Departing Thu, 11 Jun, returning Sun, 21 Jun.Return flight with Wizz Air Malta and Allegiant Air.Outbound indirect flight with Wizz Air Malta, departs from Liverpool on Thu, 11 Jun, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Allegiant Air, departs from Philadelphia Trenton-Mercer on Sun, 21 Jun, arriving in Liverpool.Price includes taxes and charges.From £1,149, select.

Find the cheapest time to fly to Philadelphia Trenton-Mercer

Flexible on travel dates? Find the cheapest month – or even day – to fly to Philadelphia Trenton-Mercer.

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Airports near Philadelphia

Compare routes to Philadelphia below. You may find an airport to fly into that's cheaper, faster, or easier.

Frequently asked questions

Which airlines offer direct flights to Philadelphia Trenton-Mercer?

Currently, there are no airlines that fly direct to Philadelphia Trenton-Mercer. But we found flights with one or more stops from £360.

When is the cheapest time to fly to Philadelphia Trenton-Mercer?

The cheapest month to fly to Philadelphia Trenton-Mercer is usually February.

How can I find the best flight deal to Philadelphia Trenton-Mercer?

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.

Can I get a direct flight to Philadelphia Trenton-Mercer Airport?

No airlines currently offer direct flights between United Kingdom and Philadelphia Trenton-Mercer Airport. Most routes have one or more stops.

How much are return flights to Philadelphia Trenton-Mercer?

The best price we found for a return flight to Philadelphia Trenton-Mercer is £360. 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.

Can I get a better flight deal if I fly into another airport near Philadelphia?

We found flights to Philadelphia International Airport, which is 7.0 miles from Philadelphia, from £324.

Which upcoming date is cheapest to fly to Philadelphia Trenton-Mercer Airport on?

After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Philadelphia Trenton-Mercer Airport is Friday, 27 February 2026.

When is the best time to book flights to Philadelphia?

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.

Which is the cheapest airline to fly to Philadelphia with?

Currently, Norse Atlantic Airways (UK) offers the cheapest flight tickets to Philadelphia Trenton-Mercer.

Flying to Philadelphia Trenton-Mercer

The things to know before you go.

Cheapest flight found	£360
Cheapest month to fly	February

Discover Philadelphia Trenton-Mercer

How to find cheap flights to Trenton-Mercer Airport (TTN)

£360 is currently the cheapest price for a round-trip flight to Trenton-Mercer Airport. For a one-way plane ticket to TTN, the lowest fare is £174.
Get updates on fares by setting up a Price Alert. The moment prices on tickets to TTN fall, you'll get a notification.
Lock in a bargain on tickets to Philadelphia, where Trenton-Mercer Airport is located, by booking ahead of time. You're more likely to secure an amazing deal and have a wider range of flights and departure times.
Expand your search for cheap flights to Philadelphia by clicking the 'Add nearby airports' option. This allows you to compare prices for all the airports closest to your departure and destination points and could help keep costs down.
Consider taking a flight with a stop, as indirect routes can often save you money. Just uncheck the 'Direct flights' box when searching for your plane tickets to Trenton-Mercer Airport.

Best time to go to Philadelphia

You can usually jump on the cheapest flight to Philadelphia in May.
If you can be flexible with your dates, try using the 'Whole month' tool. It'll show you the cheapest month, and even day of the year, for flights to TTN.
Fly to Philadelphia in August if you want to be there when it's busy. This is the most popular month for flights to TTN, but also when fares are likely to cost more.
April is the quietest time of year to visit if you're after a slower pace. You'll generally find cheaper prices on plane tickets to Philadelphia then.
With averages of between 18ºC and 32ºC, July is when Philadelphia is at its warmest. Organise your visit around your preferred weather conditions to get the most out of your trip.
Temperatures are lowest in January, when they range from -7ºC to 9ºC.
Don't want to pack a raincoat? November is the driest month in Philadelphia, averaging five days of rain.
The wettest time of year is July. Travel then and you'll likely get around ten days of rainfall.

Travelling to Trenton-Mercer Airport (TTN): What you need to know

Reach Philadelphia faster with a direct Frontier Airlines flight to Trenton-Mercer Airport.
If you want to travel with the most consistently on-time carrier, book your TTN plane ticket with Frontier Airlines. Up to 84% of its flights into this airport arrive according to schedule.
You'll be touching down in the UTC-4 timezone at TTN.
Crawl into bed shortly after your flight to TTN. Book a room at one of these stays close to Trenton-Mercer Airport and you'll be fast asleep before you know it:
Kick off your Philadelphia break sooner by collecting a car hire in TTN. Budget, National and Enterprise are well-known providers to select from here.
If you have a connection from Trenton-Mercer Airport or travelling home from there, your journey is likely to stay on schedule. Up to 82% of all flights out of TTN land when they're supposed to.
Trenton-Mercer Airport is located in Philadelphia, Pennsylvania, the United States.

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

The distance from TTN to central Philadelphia is about 56 kms (35 miles).
You'll reach the centre in around 40 minutes if you're catching a cab or a ride-share after your flight to TTN.
You can expect the ride to take about 1 hour 45 minutes on public transport.
Philadelphia makes it easy to find your perfect base. Here's a roundup of comfy hotels to help get you started:

Philadelphia highlights

Put these popular sights high on your must-see list after stepping off your flight to Philadelphia:
- Independence Hall: Offering a memorable introduction to the city's highlights, this landmark is around 2 kms (1 mile) east of the centre.
- 18th Century Garden of the Independence National Historic Park: Find a spot to sit and take five here while exploring Philadelphia. This park is roughly 2 kms (1 mile) east of the centre.
- Philadelphia Museum of Art: This also makes for a worthwhile detour. A top landmark, it's around 2 kms (1 mile) north-west of the centre of Philadelphia.

How to get to Allentown from Trenton-Mercer Airport (TTN)

TTN is a gateway to the nearby city of Allentown, which is around 64 kms (40 miles) away. The easiest way to reach the centre will depend on when you're travelling, so check your options first.

Travelling from Trenton-Mercer Airport (TTN) to Edison

Edison is about 40 kms (25 miles) from Trenton-Mercer Airport if you're going in that direction.

Explore more of the United States

There's a whole lot more of the United States begging to be explored. Around 80 kms (50 miles) north-east of Philadelphia, set off for New York. What not to miss? Start with Central Park, Manhattan Skyline and Statue of Liberty. The most conveniently located airport for this city is John F. Kennedy International Airport (JFK).
Another city in the United States that will quickly win you over is Baltimore. From Philadelphia, it's roughly 193 kms (120 miles) south-west and offers top sights like Baltimore Aquarium and National Aquarium. Swing by Washington Monument and Mount Vernon Place too.
Make room for new experiences in Washington DC, which is roughly 241 kms (150 miles) south-west of Philadelphia. Smithsonian, Lincoln Memorial and The White House are reasons to visit. You can get here by catching a flight to Ronald Reagan National Airport (DCA).