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Flights to Princeton

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Flight deals to Princeton

Looking for a cheap last-minute deal or the best return flight to Princeton? Find our lowest prices on one-way and return tickets to the easiest airport right here.
Philadelphia.£548 per passenger.Departing Fri, 17 Apr, returning Fri, 24 Apr.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Fri, 17 Apr, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Fri, 24 Apr, arriving in London Gatwick.Price includes taxes and charges.From £548, select.
Philadelphia.£661 per passenger.Departing Tue, 26 May, returning Wed, 3 Jun.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Tue, 26 May, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Wed, 3 Jun, arriving in London Gatwick.Price includes taxes and charges.From £661, select.
Philadelphia.£663 per passenger.Departing Wed, 13 May, returning Fri, 15 May.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Wed, 13 May, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Fri, 15 May, arriving in London Gatwick.Price includes taxes and charges.From £663, select.
Philadelphia.£708 per passenger.Departing Tue, 9 Jun, returning Tue, 16 Jun.Return flight with Virgin Atlantic and Frontier Airlines.Outbound indirect flight with Virgin Atlantic, departs from London Heathrow on Tue, 9 Jun, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Tue, 16 Jun, arriving in London Heathrow.Price includes taxes and charges.From £708, select.
Philadelphia.£763 per passenger.Departing Tue, 16 Jun, returning Fri, 25 Sep.Return flight with Norse Atlantic Airways (UK) and Allegiant Air.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Tue, 16 Jun, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Allegiant Air, departs from Philadelphia Trenton-Mercer on Fri, 25 Sep, arriving in London Gatwick.Price includes taxes and charges.From £763, select.
Philadelphia.£885 per passenger.Departing Sun, 19 Apr, returning Thu, 16 Jul.Return flight with Aer Lingus and Frontier Airlines.Outbound indirect flight with Aer Lingus, departs from Newcastle on Sun, 19 Apr, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Thu, 16 Jul, arriving in Newcastle.Price includes taxes and charges.From £885, select.
Philadelphia.£924 per passenger.Departing Wed, 15 Apr, returning Fri, 8 May.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Wed, 15 Apr, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Fri, 8 May, arriving in London Gatwick.Price includes taxes and charges.From £924, select.
Philadelphia.£1,179 per passenger.Departing Tue, 21 Jul, returning Sat, 25 Jul.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Tue, 21 Jul, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Sat, 25 Jul, arriving in London Heathrow.Price includes taxes and charges.From £1,179, select.
Philadelphia.£1,375 per passenger.Departing Sat, 15 Aug, returning Thu, 20 Aug.Return flight with easyJet and Frontier Airlines.Outbound indirect flight with easyJet, departs from Edinburgh on Sat, 15 Aug, arriving in Philadelphia Trenton-Mercer.Inbound indirect flight with Frontier Airlines, departs from Philadelphia Trenton-Mercer on Thu, 20 Aug, arriving in Edinburgh.Price includes taxes and charges.From £1,375, select.

Flying to Princeton

The things to know before you go.
Fly intoPhiladelphia Trenton-Mercer Airport
Distance to Princeton9.4 miles
Cheapest flight found£265
Cheapest month to flyMay

Find the cheapest time to fly to Princeton

Flexible on travel dates? Find the cheapest month – or even day – to catch a flight to Princeton.
Apr
from £548
May
from £663
Jun
from £708
Jul
from £1,179
Aug
from £1,375
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Mar
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Frequently asked questions

There are 3 airports near Princeton: Philadelphia Trenton-Mercer Airport, Morristown Airport and New York Newark Airport.
Currently, there are no airlines that fly direct to Princeton. But we found flights with one or more stops from £548.
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 Princeton 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.
The best price we found for a return flight to Princeton is £548. This is an estimate based on information collected from different airlines and travel providers flying to Philadelphia Trenton-Mercer Airport over the last 4 days and is subject to change and availability.
The cheapest airport near Princeton is Philadelphia Trenton-Mercer – which is 9.4 miles away from the centre of Princeton. We've found flights into this airport from £548.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Philadelphia Trenton-Mercer Airport, the closest airport to Princeton is Friday, 17 April 2026.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Princeton is around 40 days in advance, so don’t leave your flight to the last minute.
Philadelphia Trenton-Mercer Airport is 9.4 miles from Princeton, Morristown Airport is 33.3 miles from Princeton, and New York Newark Airport is 35.0 miles from Princeton.
The average temperature in Princeton in April is around 10°C. The warmest month in Princeton is typically July, which averages 29°C. The coolest month is January, with temperatures averaging -5°C. The rainiest month is July, and it usually rains the least in February.
Currently, the cheapest airline that flies to Philadelphia Trenton-Mercer Airport - the closest airport to Princeton - Norse Atlantic Airways (UK).
Philadelphia Trenton-Mercer Airport is 9.4 miles from Princeton which is approximately 21 minutes driving time. Check out the options for car hire at Philadelphia Trenton-Mercer Airport.
Morristown Airport is 33.3 miles from Princeton which is approximately 58 minutes driving time. Check out the options for car hire at Morristown Airport.
New York Newark Airport is 35.0 miles from Princeton which is approximately 59 minutes driving time. Check out the options for car hire at New York Newark Airport.

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