Cheap Flights from Trenton (TTN) to Washington (IAD)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save on select hotels after you book a flight*
    trophy illustration

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

Is it cheaper to buy a plane ticket from Trenton–Mercer Airport to IAD last minute?
When it's time to book your flights, it's better to be prepared. While it's possible to score a deal on a TTN to Dulles Intl. Airport flight at the last minute, fares usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international journeys it's three to four months.
What airports do you fly into for Washington from Trenton?
Washington Dulles Intl. Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are your choices when taking off from Trenton to Washington. Approximately 40 kilometers west of downtown Washington, Washington Dulles Intl. Airport (IAD) is the city's major hub. Keep in mind things such as flight schedules and the distance to your hotel before choosing your airport. White House and United States Capitol are a couple of great attractions to visit when you get to your destination.
Can I change the date of my flight from Trenton–Mercer Airport to IAD?
Expedia makes it easy to make changes to your Trenton–Mercer Airport to IAD journey yourself. Simply log in to the Expedia Trips portal and select "change flight." Look for new flights and secure the one that better suits your plans. You'll get an estimate of your flight change cost, if applicable. Alternatively, visit our Customer Service portal to chat to our Virtual Agent and quickly get answers to all your questions.

Travel information

Travel information

Origin airport
Mercer
Destination airport
Washington Dulles Intl.
Distance
267 km

Book with confidence

Book with confidence

Trenton to Washington Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Trenton to Washington offer the perfect respite. Not only does exploring Washington provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Trenton to Washington may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Washington are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Washington more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Washington is now!

Trenton to Washington Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia