Portsmouth
Portsmouth
Houston
Houston
Flight

Portsmouth to Houston

Updated: 28 May 2026

The distance from Portsmouth to Houston is approximately 1,800 miles. Flying is the only practical mode of transport for this long-distance journey. You will typically take a bus to Boston Logan Airport and then fly directly to George Bush Intercontinental Airport. The total travel time is about 7 to 8 hours. Houston is a major economic and cultural center in Texas.

Total Distance: 2,900 km driving, 2,500 km air distance.
Fastest Way
Flight, taking 7 hours total.
Cheapest Way
Flight, if booked in advance.
Compare Portsmouth to Houston Routes
Flight
Connecting
Duration
7 hours (including airport time)
Avg Price
300-600 USD
Operator
United / American Airlines
Route
Bus to Boston Logan, flight to IAH.

IAH is a major hub; allow plenty of time for security.

Travel Tips
  • Transit
    Use the METRO system to get around the city; it is very efficient.
  • Tickets
    Book flights early to avoid high prices.
  • Arrival
    IAH is large; allow extra time to navigate the terminals.
  • Walking
    Houston is spread out; you will likely need to use transit or rideshares.
  • Apps
    Use a transit app for real-time METRO updates.
Safety Tips
  • Awareness
    Stay alert in crowded tourist areas.
  • Transit Safety
    Follow all safety instructions on the METRO trains.
  • Night Travel
    Stick to well-lit areas when walking at night.
  • Emergency
    Houston has a robust emergency response system; dial 911.
People Also Ask
  • Is there a train to Houston?
    You could take a train from Boston, but it takes over 40 hours.
  • How long is the flight?
    The flight itself is about 4 hours, plus airport time.
  • Which airport is better?
    IAH is the main airport, but Hobby is an alternative.
  • Is it a long trip?
    Yes, it is a significant distance across the country.
  • What is the best time to visit?
    Spring is popular, but it can be hot in the summer.
Quick Info
  • From Portsmouth, New Hampshire, United States
  • To Houston, Texas, United States
  • Modes
Best Time to Travel

Spring or Fall for mild weather.

Things to Do in Houston
1
Space Center Houston
Visit the official visitor center of NASA's Johnson Space Center. It is a must-see.
2
Museum District
Explore the many museums in this area. It is a cultural landmark.
3
Buffalo Bayou Park
Enjoy the green space and trails along the bayou. It is a great place for a walk.
4
Houston Zoo
See the animals and enjoy the exhibits. It is a popular family destination.
Tags
Portsmouth to Houston flight to Houston traveling to Houston Portsmouth to Houston distance Boston to Houston flight Texas travel NH to TX travel Houston trip