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Portsmouth

Cheap flights from Portland to Portsmouth, NH (PDX - PSM)

PDX — PSM
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Portland to Portsmouth

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Portsmouth (PSM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Popular in

December

Cheapest in

September

Average price

$397
Highest demand for flights based on searches. 12% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Best time to book a flight from Portland to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Portland 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.

Related info for your journey

Find useful and relevant information for your journey from Portland to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Portland to Portsmouth that include hotel bookings?

    Yes. In addition to deals on Portland to Portsmouth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Portsmouth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Portsmouth.

  • Can I find deals for business class flights from Portland to Portsmouth?

    Yes. Cheapflights offers flight deals from Portland to Portsmouth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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