$255 Cheap Flights from Portsmouth (PSM) to Portland (PWM)

View $255 flight on Sun, Feb 8, 2026Opens in a new window

Popular airlines from Portsmouth, NH (PSM-Portsmouth Intl.) to Portland Intl. Jetport Airport (PWM)

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Cheap Flights from Portsmouth to Portland (PSM-PWM)

Prices were available within the past 7 days and start at $255 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM) cost?
Grab a cheap one-way flight from $255 or cheap return flight from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM)?
The cheapest month to fly from PSM to PWM is , when there's less demand. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from PSM to PWM. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM)?
Direct flights from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PSM to PWM?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM)?
To avoid possible delays on the Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM) last-minute?
Waiting until just before your departure to book your flight from PSM to PWM often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a PSM to PWM flight and hotel package?
You'll generally save money by securing a PSM to PWM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your ideal accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Portsmouth Intl. Airport (PSM) to Portland Intl. Jetport Airport (PWM)?
You can usually cancel or reschedule your PSM to PWM flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Portsmouth Intl.
Destination airport
Portland Intl. Jetport
Distance
46 mi

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Portsmouth to Portland Flights

The cheapest times to fly from Portsmouth to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portsmouth to Portland are during the month of . You can find some of the cheapest flights from Portsmouth to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portsmouth to Portland

Sunday is one of the best days to book for cheap flights from Portsmouth to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portsmouth to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portsmouth to Portland in 2026. You can also book with separate airlines for your outbound and return journeys, from $255 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portsmouth to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portsmouth to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Portsmouth to Portland Flights

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