Find flights
When to book
Travel Guide

Cheap flights to Portsmouth, NH

CMH — PSM
7 Jun — 14 Jun1
1 adult
Fri 7/6
Fri 14/6

Flights to Portsmouth, NH in 2024

Find the latest flights to Portsmouth in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 420,726 searches and data was last updated on 2 June 2024.

Popular in

August

Cheapest in

January

Average price

C$ 403

Round-trip from

C$ 288
High demand for flights, 2% potential price rise
Search Deals
Best time to find cheap flights, 1% potential price drop
Search Deals
Average for round-trip flights in June 2024
Search Deals
From Toronto to Boston Logan Intl
Search Deals

Best time to book a flight to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature and rainfall totals by month.

BOS

Temperature

-1 - 23 °C

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

When is the best time to book a flight to Portsmouth?

Use this chart to determine the optimal time to book a round-trip flight to Portsmouth. Price data was last updated on 24 May 2024.
Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights to Portsmouth. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Toronto to Washington, D.C. Dulles Intl Airport flights
Vancouver to Tokyo Haneda Airport flights
Canada to Morocco flights
Hamilton, Ontario to Orlando flights
Vancouver to Quebec flights
Toronto to Sudbury, Ontario flights
Montreal to Orlando flights
Vancouver to Palm Springs flights
Kamloops to Edmonton flights
Vancouver to Dubai flights

Search flights to Portsmouth by cabin class

Find flights to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Zakynthos Dionsios Salomos
Flights to Saint Peter Jersey
Flights to Ibague
Flights to Monrovia Roberts Intl
Flights to Dawson City
Flights to Maracaibo La Chinita
Flights to Dalaman
Flights to Naxos
Flights to Montgomery Dannelly Field
Flights to Suceava Salcea
Flights to Nador
Flights to Fayetteville
Flights to Tampico Gen F Javier Mina
Flights to Sioux Falls Joe Foss Field
Flights to General Santos Intl
Flights to Grand Junction Regnl
Flights to Sulaymaniyah Int.
Flights to Traverse City Cherry Capital
Flights to Tofino Long Beach
Flights to Niagara Falls
Flights to Butuan
Flights to Samarkand
Flights to Churchill
Flights to Arcata Eureka
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines