Cheap Flights from Washington (IAD) to Princeton (PCT)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT)

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Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT) cost?
Secure a cheap one-way flight or cheap return flight from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT)?
is the cheapest month to fly from IAD to PCT. Avoiding peak travel times is often the key to finding a great deal.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest IAD to PCT flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT)?
You'll have to hop on a flight with a layover if you're traveling from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from IAD to PCT?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, carrier 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 Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT)?
Select a flight from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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 Princeton from Washington Dulles Intl. Airport (IAD)?
You can land at any one of these Princeton airports following your direct flight from Washington Dulles Intl. Airport (IAD):

  • Liberty Intl. Airport (EWR)
  • LaGuardia Airport (LGA)
  • Philadelphia Intl. Airport (PHL)

Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT) last-minute?
Last-minute fares from IAD to PCT are typically more expensive. To secure the lowest rates, start looking for flights early. That being said, if your travel plans are flexible, it's possible to score a cheap fare just before your departure.
Is it cheaper to book an IAD to PCT flight and hotel package?
You can save money by securing an IAD to PCT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Princeton, NJ (PCT)?
If you booked your IAD to PCT flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Princeton
Distance
178 mi

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Washington to Princeton Flights

The cheapest times to fly from Washington to Princeton

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

 

The best time to book a flight from Washington to Princeton

Sunday is one of the best days to book for cheap flights from Washington to Princeton: 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 Washington to Princeton

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 Washington to Princeton in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Washington to Princeton 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 Washington to Princeton 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.

 

Washington to Princeton Flights

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*Available to One Key members.