$220 Cheap Flights from Raleigh (RDU) to Portsmouth (PSM)

View $220 flight on Fri, May 16, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Portsmouth, NH (PSM-Portsmouth Intl.)

Find available prices by choosing your travel dates.

Cheap Flights from Raleigh to Portsmouth (RDU-PSM)

Prices were available within the past 7 days and start at $220 for one-way flights and $424 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Sep 12 - Wed, Sep 17
RDU
Raleigh
PSM
Portsmouth
$424 Roundtrip, found 3 days ago
$424
Roundtrip
found 3 days ago
Select Breeze Airways flight, departing Fri, Sep 12 from Raleigh to Portsmouth, returning Wed, Sep 17, priced at $424 found 3 days ago
Breeze Airways
Fri, May 16 - Wed, Jun 4
RDU
Raleigh
PSM
Portsmouth
$429 Roundtrip, found 2 days ago
$429
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Fri, May 16 from Raleigh to Portsmouth, returning Wed, Jun 4, priced at $429 found 2 days ago
Breeze Airways
Fri, May 23 - Wed, Jun 11
RDU
Raleigh
PSM
Portsmouth
$439 Roundtrip, found 6 days ago
$439
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Fri, May 23 from Raleigh to Portsmouth, returning Wed, Jun 11, priced at $439 found 6 days ago
Breeze Airways
Fri, May 30 - Wed, Jun 4
RDU
Raleigh
PSM
Portsmouth
$443 Roundtrip, found 7 hours ago
$443
Roundtrip
found 7 hours ago
Select Breeze Airways flight, departing Fri, May 30 from Raleigh to Portsmouth, returning Wed, Jun 4, priced at $443 found 7 hours ago
Breeze Airways
Fri, May 23 - Wed, Jun 11
RDU
Raleigh
PSM
Portsmouth
$444 Roundtrip, found 6 days ago
$444
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Fri, May 23 from Raleigh to Portsmouth, returning Wed, Jun 11, priced at $444 found 6 days ago
Breeze Airways
Fri, Sep 19 - Sat, Oct 4
RDU
Raleigh
PSM
Portsmouth
$452 Roundtrip, found 6 days ago
$452
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Fri, Sep 19 from Raleigh to Portsmouth, returning Sat, Oct 4, priced at $452 found 6 days ago
Breeze Airways
Fri, Oct 10 - Wed, Oct 15
RDU
Raleigh
PSM
Portsmouth
$456 Roundtrip, found 1 day ago
$456
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Fri, Oct 10 from Raleigh to Portsmouth, returning Wed, Oct 15, priced at $456 found 1 day ago
Breeze Airways
Fri, May 23 - Sat, Jun 7
RDU
Raleigh
PSM
Portsmouth
$492 Roundtrip, found 6 days ago
$492
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Fri, May 23 from Raleigh to Portsmouth, returning Sat, Jun 7, priced at $492 found 6 days ago
Breeze Airways
Fri, May 30 - Sat, Jun 14
RDU
Raleigh
PSM
Portsmouth
$500 Roundtrip, found 2 days ago
$500
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Fri, May 30 from Raleigh to Portsmouth, returning Sat, Jun 14, priced at $500 found 2 days ago
Breeze Airways
Fri, May 30 - Sat, Jun 14
RDU
Raleigh
PSM
Portsmouth
$510 Roundtrip, found 4 days ago
$510
Roundtrip
found 4 days ago
Select Breeze Airways flight, departing Fri, May 30 from Raleigh to Portsmouth, returning Sat, Jun 14, priced at $510 found 4 days ago
Breeze Airways
Fri, May 23 - Sat, Jun 7
RDU
Raleigh
PSM
Portsmouth
$547 Roundtrip, found 2 days ago
$547
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Fri, May 23 from Raleigh to Portsmouth, returning Sat, Jun 7, priced at $547 found 2 days ago

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to Portsmouth Intl. Airport (PSM) cost?
Discover the latest flight deals from RDU to PSM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from RDU to PSM?
The cheapest flights from RDU to PSM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from RDU to PSM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from RDU to PSM. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Portsmouth Intl. Airport (PSM)?
Direct flights from Raleigh - Durham Intl. Airport (RDU) to Portsmouth Intl. Airport (PSM) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your dates and select either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from RDU to PSM?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the airline 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 Raleigh - Durham Intl. Airport (RDU) to Portsmouth Intl. Airport (PSM)?
To reach Portsmouth Intl. Airport (PSM) on time, book a flight that leaves from Raleigh - Durham Intl. Airport (RDU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
What airports do you fly into for Portsmouth from Raleigh - Durham Intl. Airport (RDU)?
Raleigh - Durham Intl. Airport (RDU) has direct flights to Portsmouth. Here are a few of the airports you can fly straight to:

  • Logan Intl. Airport (BOS)
  • Portland Intl. Jetport Airport (PWM)
  • Manchester-Boston Regional Airport (MHT)

Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to Portsmouth Intl. Airport (PSM) last-minute?
Last-minute fares from RDU to PSM are typically more expensive. For the lowest rates, start searching for flights well in advance. That being said, if you’re flexible with your travel dates, it’s possible to score a cheap fare right before your trip.
Is it cheaper to book a RDU to PSM flight and hotel package?
You can save money by securing a RDU to PSM flight and hotel package compared to booking separately. In fact, travelers 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 flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Portsmouth Intl. Airport (PSM)?
It’s generally possible to cancel or reschedule your RDU to PSM flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are allowed and whether any costs are involved. You’ll also find further details on our Customer Service portal.
*Available to One Key members.