- Must visit
Smithsonian National Museum of Natural History
One of the world’s most visited natural history museums, known for dinosaur fossils, the Hope Diamond, and strong family-friendly exhibits on Earth and life sciences.
Cheapest price
$67
Average price
$158
Fastest journey
2 h 25 m
Average duration
2 h 27 m
Trains per day
30
Distance
260 km
The best way to find a cheap train ticket from Princeton, NJ to Washington, DC is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Princeton, NJ to Washington, DC will cost around $158 if you buy it on the day, but the cheapest tickets can be found for only $67.
Of the 30 trains that leave Princeton, NJ for Washington, DC on Mon, Jun 15, 29 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Mon, Jun 15 the direct trains cover the 260 km distance in an average of 2 h 27 m but if you time it right, some trains will get you there in just 2 h 25 m .
On Mon, Jun 15 the slowest trains will take 2 h 30 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
129 Northeast Regional
129 Northeast Regional
119 Northeast Regional
183 Northeast Regional
85 Northeast Regional
141 Northeast Regional
113 Northeast Regional
55 Vermonter
173 Northeast Regional
131 Northeast RegionalOmio recommends booking the train as it is the most popular option from Princeton, NJ to Washington, DC among Omio's users. If you are prioritising price take the bus with prices starting from $25. For those with little time consider booking a flight which can get you there in 1h 30m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.1 - 0.2kg. The ticket price range depends on the travel mode: a bus costs an average of $25, and a flight costs an average of $68.
Distance: 161 miles (260 km)
Most popular Train | Bus | Flight | Driving |
|---|---|---|---|
$48 Average price | $35 Average price Cheapest | $182 Average price | $48 Average price (fuel + tolls) |
3h 11m Average total duration 2h 41m Onboard + 30m Additional time* | 4h 26m Average total duration 3h 56m Onboard + 30m Additional time* | 4h 30m Average total duration Fastest 1h 30m Onboard + 3h 0m Additional time* | 3h 19m Average total duration (door-to-door) |
0.1 - 0.2kg CO2 emissions Lowest | - CO2 emissions | 0.8 - 1.6kg CO2 emissions | - CO2 emissions |
Direct Options | Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
This is compared to other travel options from Princeton, NJ to Washington, DC:
A bus is $13 (€10) less than a train for this route with tickets for a train from Princeton, NJ to Washington, DC costing on average $48 (€39).
A bus is $147 (€119) less than a flight for this route with tickets for a flight from Princeton, NJ to Washington, DC costing on average $182 (€148).
Other travel options to Washington, DC take longer:
Train takes on average 2h 41m.
Bus takes on average 3h 56m.
You'll arrive about 38m sooner (2h 41m by train vs 3h 19m by car). Tickets start at around $48 (€39) compared to roughly $48 (€39) in fuel and tolls — so you're paying a bit more, but getting hours of your day back, a city-centre arrival, and the freedom to work or relax instead of drive.
Direct services run with Amtrak.
Driving makes more sense if you're travelling as a group (where fuel costs split several ways), want to stop along the way, or need a car once you arrive.
The table below shows live departures for Princeton, NJ to Washington, DC trains for today, Sunday, June 14. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
89 Palmetto | 6:56 AM Trenton Transit Center, Trenton, NJ | 2h48 | 9:44 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
89 Palmetto · 51 Cardinal | 6:56 AM Trenton Transit Center, Trenton, NJ | 3h18 | 10:14 AM Washington Union Station, Washington, DC | 1 transfer | |
51 Cardinal | 7:42 AM Trenton Transit Center, Trenton, NJ | 2h32 | 10:14 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
79 Carolinian | 7:51 AM New Brunswick Station, New Brunswick, NJ | 3h18 | 11:09 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
79 Carolinian | 8:07 AM Princeton Junction Station at West Windsor, West Windsor Township, NJ | 3h02 | 11:09 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
79 Carolinian | 8:19 AM Trenton Transit Center, Trenton, NJ | 2h50 | 11:09 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
153 Northeast Regional | 9:03 AM Trenton Transit Center, Trenton, NJ | 2h29 | 11:32 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
155 Northeast Regional | 9:46 AM New Brunswick Station, New Brunswick, NJ | 2h53 | 12:39 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
103 Northeast Regional | 9:47 AM Trenton Transit Center, Trenton, NJ | 2h33 | 12:20 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
155 Northeast Regional | 10:00 AM Princeton Junction Station at West Windsor, West Windsor Township, NJ | 2h39 | 12:39 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
143 Northeast Regional | 10:49 AM Trenton Transit Center, Trenton, NJ | 2h40 | 1:29 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
105 Northeast Regional | 1:08 PM New Brunswick Station, New Brunswick, NJ | 2h50 | 3:58 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
105 Northeast Regional | 1:26 PM Trenton Transit Center, Trenton, NJ | 2h32 | 3:58 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
145 Northeast Regional | 1:51 PM Trenton Transit Center, Trenton, NJ | 2h28 | 4:19 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
19 Crescent | 3:01 PM Trenton Transit Center, Trenton, NJ | 2h46 | 5:47 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
189 Northeast Regional | 5:03 PM Trenton Transit Center, Trenton, NJ | 2h32 | 7:35 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
149 Northeast Regional | 6:03 PM Trenton Transit Center, Trenton, NJ | 2h42 | 8:45 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
135 Northeast Regional | 7:03 PM Trenton Transit Center, Trenton, NJ | 2h38 | 9:41 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
57 Vermonter | 7:57 PM Trenton Transit Center, Trenton, NJ | 2h35 | 10:32 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
165 Northeast Regional | 8:46 PM New Brunswick Station, New Brunswick, NJ | 2h54 | 11:40 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
165 Northeast Regional | 9:00 PM Princeton Junction Station at West Windsor, West Windsor Township, NJ | 2h40 | 11:40 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
165 Northeast Regional | 9:08 PM Trenton Transit Center, Trenton, NJ | 2h32 | 11:40 PM Washington Union Station, Washington, DC | 0 transfersDirect | |
139 Northeast Regional | 10:18 PM Trenton Transit Center, Trenton, NJ | 2h27 | 12:45 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
| Monday, June 15 | |||||
67 Northeast Regional | 12:22 AM Trenton Transit Center, Trenton, NJ | 6h32 | 6:54 AM Washington Union Station, Washington, DC | 0 transfersDirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare bus, train, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Trains from Princeton, NJ to Washington, DC run on average 28 times per day, taking around 2h 41m. Cheap train tickets for this journey start at $12 (€10) if you book in advance.
There are 26 trains per day. The earliest train runs at 00:20, the last at 23:23. The fastest train covers the 161 miles (260 km) distance in 2h 24m.
Distance 161 miles (260 km) |
Average train duration 2h 41m |
Cheapest ticket price $12 (€10) |
Trains per day 28 |
Direct trains 26 |
Fastest train 2h 24m |
First train 12:20 AM |
Last train 11:23 PM |
Cheapest Month Feb |
Cheapest Day Tue |
High Season Jul - Sep |
Low Season Jan - Mar |
Busiest Day Fri |
Least Busy Day Wed |
Best time to book 49 days |
Discover the best of Washington — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Washington trip today.
One of the world’s most visited natural history museums, known for dinosaur fossils, the Hope Diamond, and strong family-friendly exhibits on Earth and life sciences.
Flagship Smithsonian museum exploring African American history, culture, and community through powerful permanent exhibitions and major national narratives.
Premier art museum with masterworks from the Middle Ages to the modern era, plus sculpture garden and rotating exhibitions in two landmark buildings.
Washington’s essential civic promenade lined with museums and monuments, ideal for first-time visitors and the city’s top walking experience.
Historic waterfront neighborhood known for charming streets, rowhouses, shopping, and canal-side walks; a classic area for exploring on foot.
Scenic reservoir loop famous for memorials and cherry blossoms, especially photogenic at sunrise, sunset, and spring bloom season.
Washington’s signature sausage, typically smoky and spicy, served on a bun with mustard, onions, and chili. It is one of the city’s most iconic street foods.
A sweet-tangy sauce strongly associated with Washington carryout culture, often paired with fried chicken or wings. It is a distinctive local comfort-food staple.
Sweet blue crab from the Chesapeake region, commonly served steamed and heavily seasoned. It reflects the Mid-Atlantic seafood traditions closely tied to Washington.
A celebrated historic restaurant near the White House, known for oysters, crab cakes, and classic Washington political dining ambiance.
Widely acclaimed Indian restaurant with a polished atmosphere, famous for refined cooking and one of Washington’s best-known dining rooms.
Well-known French brasserie in Logan Circle, valued for its classic menu, energetic scene, and stylish long-established popularity.
Prices are high by U.S. standards, especially for hotels and dining in central areas, though casual food is still manageable.
Tip 18-20% at restaurants with table service. USD 1-2 per drink at bars, round up or 10-15% for taxis, and USD 1-2 per bag for hotel staff.
Official public transport app
Union Station, Washington, DC -> Metro Center, Washington, DC
Find answers to the most common questions about traveling from Princeton, NJ to Washington, DC by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Washington, DC, this guide helps you travel smarter and with confidence.

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