Cheap flights from Baltimore to Portsmouth (BWI - PSM)

BWI — PSM
Dec 5 — Dec 121

How far in advance should I book a flight from Baltimore to Portsmouth, New Hampshire?

Travelers have found it’s best to book a flight 33 days in advance to save up to 28% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 33 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Baltimore to Portsmouth, New Hampshire 1-2 weeks in advance for as low as $183, or $212 for flights within the next 24 hours.

What is the cheapest month to fly from Baltimore to Portsmouth, New Hampshire?

Our data shows that January tends to be the cheapest month to fly to Portsmouth, New Hampshire from Baltimore. Users have commonly found prices around $170 for the month, but tickets can be as low as $77. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Baltimore to Portsmouth, New Hampshire (BWI - PSM)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to Portsmouth, New Hampshire as you normally would.

Alternative routes for Baltimore to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.