Travelers have found it’s best to book a flight 31 days in advance to save up to 111% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 31 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from New Jersey to Washington, D.C. 1-2 weeks in advance for as low as $235, or $341 for flights within the next 24 hours.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New Jersey to Washington, D.C. as you normally would.
Flights from New Jersey to Washington, D.C. lean towards being more expensive in September. Prices are generally better when you fly from New Jersey to Washington, D.C. in April, with the cheapest ticket starting at $113.