What is the distance between Washington and Portsmouth?

The distance separating Washington and Portsmouth is 434 miles (700 km).

Bus Washington to Portsmouth from $87 | Refundable Tickets

Next departures

Next departures for Washington to Portsmouth on October 14
Operated by	Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended	Price and booking link
		11:30pm	Union Station	20h 20m	7:50pm	Portsmouth	Cheapest
FlixBus + Greyhound Lines, Inc.		6:00am	Union Station	13h 50m	7:50pm	Portsmouth	Fastest

Last refresh of the prices: Today at 3:26 PM EDT.

Bus Washington, DC, US to Portsmouth, NH, US: Trip Overview

Average ticket price$60

Average bus trip duration13h 50m

Number of daily buses2

Earliest bus departure6:00am

Distance434 miles (700 km)

Latest bus departure11:30pm

Compare bus companies

Greyhound

3.5/587,314 reviews

Staff3.6

Timeliness2.9

Cleanliness3.3

Wifi2.4

Greyhound Lines offers the most comprehensive intercity bus services in the United States. They operate a modern, environmentally friendly fleet that serves more than 2400 destinations and carries nearly 16 million passengers annually. When traveling with them, you can expect free WiFi, onboard entertainment, bathrooms, power outlets and decent legroom. One of the great perks of Greyhound is that they connect big cities and smaller towns in the US, where you usually can't get to by train or plane. If you're looking for safe and affordable transportation, Greyhound is a great choice.

FlixBus

3.5/510,886 reviews

Staff4.1

Timeliness3.9

Cleanliness4.1

Wifi2.7

Flixbus is a European bus operator that offers intercity and bus travel in over 38 countries. Known for their easy-to-spot lime green buses and for offering affordable transportation between cities in Europe and the Americas, Flixbus is a good option for those looking for an affordable, reliable bus company. In their buses, you'll find free WiFi, bathrooms, and power outlets. You can also pay extra to choose your seat and get extra legroom, or even buy a snack or drink onboard directly from the driver. You can reschedule your ticket for a small fee, which varies from $1 to $5, depending on how close you are to the departure date.

US bus companies: FlixBus, BlaBlaCar Bus, ALSA, Greyhound, Intercape, Trenitalia, Sindbad

Washington to Portsmouth Bus

Busbud helps you find a bus from Washington to Portsmouth. Get the best fare and schedule, book a round trip ticket or find buses with WiFi and electrical outlets.

We make it our job to connect you with the most dependable bus companies that cover bus service from Washington to Portsmouth.

Whether it is cheap bus tickets or more luxurious buses going to Portsmouth from Washington, we help you find what you're looking for based on how much of a budget you have.

Frequently asked questions for your trip Washington, DC, US - Portsmouth, NH, US

What is the distance between Washington and Portsmouth?

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

10/11

No data

10/12

No data

Today

$99

10/14

$87

10/15

No data

10/16

No data

10/17

No data

10/18

No data

The cheapest trip from Washington, DC, US to Portsmouth, NH, US was searched and found on Oct 14, 2025 with a price of $87

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Washington, DC, US to Portsmouth, NH, US, as early as possible.

You can expect to pay from $87 to $99 for a bus ticket from Washington, DC, US to Portsmouth, NH, US based on the last 2 days. You can expect to find the cheapest price for the trip at $87 which is on 2025-10-14.

About Bus Travel

Bus Travel Tips

Make friends with the driver. They usually know a lot about your destination and may even recommend which side of the bus to sit on to get the best views on the road between Washington and Portsmouth!

From miles long of beauteous natural landscapes to impressive man-crafted sights, you're bound to be in for a visual treat on your bus trip from Washington to Portsmouth.

Buses are energy-efficient. Carrying a passenger over 100 kms by coach only takes 0.6-0.9 liters of gas. Compare that to the 2.6 liters required by high-speed train, 6.6 liters by airplane and 7.6 liters by gas-powered car, and it's clear that the bus is a more environmentally-conscious option for your bus transportation from Washington to Portsmouth.

Tune out to the fine sounds of your best music playlist on your bus trip from Washington to Portsmouth while indulging in miles on end of beautiful scenic views.

Did you know?

It takes 27 hours to go by bus from Lima to Cusco, one of the craziest bus trips on the world. This route is used daily by locals and backpackers.

The Superbus, created by a Dutch engineer is the world's fastest bus with 250 km/h. Too bad it's only a prototype for now.

The word 'bus' is an abbreviation of 'omnibus" which means 'for all' in Latin as buses were meant to be transportation for everybody.

Will you be returning to Washington, DC, US by bus?

Bus from Portsmouth, NH, US to Washington, DC, US

Top traveled bus routes

Why choose Busbud?

The Best Way To Book Bus and Train Tickets

Busbud makes bus travel easy. We help travelers find a bus, plot routes, and book intercity bus tickets all over the world. With several language and currency options available, Busbud seeks to cater to international bus travelers no matter where they are in the world. Busbud prides itself on its worldwide partnerships. We make it possible for you to buy tickets with its large network of trustworthy bus partners like Greyhound, Eurolines, ALSA, OUIBUS (BlaBlaBus), National Express and many others.

Bus Tickets from Washington, DC, US to Portsmouth, NH, US

Next departures

Bus Washington, DC, US to Portsmouth, NH, US: Trip Overview

Compare bus companies

Washington to Portsmouth Bus

Frequently asked questions for your trip Washington, DC, US - Portsmouth, NH, US