Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Portsmouth, New Hampshire. Flights to Portsmouth, New Hampshire from Chicago O'Hare Intl Airport in February are about $236 on average during February, but can be found for as low as $118.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Portsmouth, New Hampshire as you normally would.
If you book a flight to Portsmouth from Chicago O'Hare Intl, you will be flying to Pease Intl, which is the city’s only airport. Portsmouth Pease Intl (PSM) is located 3.2 mi from the center of Portsmouth. There are 0 flights from Chicago O'Hare Intl to Pease Intl per day from 0 different airlines.
ORD stands for Chicago O'Hare Intl Airport, while PSM stands for Portsmouth Pease Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.