HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St Petersburg

Cheap flights from Portsmouth, NH to Tampa (PSM - PIE)

PSM — PIE
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portsmouth to St Petersburg with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Portsmouth to St Petersburg

Discover tips and strategies to find the most affordable flight options for your journey from Portsmouth (PSM) to St Petersburg (PIE). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

November

Cheapest in

September

Average price

$272
Provider with most accurate pricing for Portsmouth Pease Intl-Tampa St. Petersburg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portsmouth Pease Intl-Tampa St. Petersburg flights.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Compare providers for flights from Portsmouth to St Petersburg

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portsmouth to St Petersburg in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portsmouth, New Hampshire-Tampa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portsmouth, New Hampshire-Tampa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portsmouth, New Hampshire-Tampa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portsmouth, New Hampshire-Tampa flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portsmouth, New Hampshire-Tampa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portsmouth to St Petersburg

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

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Tampa

What is the cheapest month to book a flight from Portsmouth, New Hampshire to Tampa?

Currently, February is the cheapest month in which you can book a flight from Portsmouth, New Hampshire to Tampa (average of $32). Flying from Portsmouth, New Hampshire to Tampa in October is currently the most expensive (average of $79). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PSM to PIE?

Find hourly flight availability from Portsmouth to St Petersburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s typically best to fly out from Portsmouth, New Hampshire to Tampa in the evening. Doing so could potentially save you 17% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing St Petersburg

Get insights into the airlines that provide service to St Petersburg. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St Petersburg. Reviews last updated December 12, 2025.
See what other customers who have flown with Allegiant Air from Portsmouth to Tampa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Allegiant Air
7.2
Good
699 reviews

Boarding

7.6

Entertainment

5.5

Comfort

6.8

Crew

8.1

Overall

7.2

Food

5.9

Reviews

1 / 20
4.0
Okay

Sara,Nov 2025

PSC - AZA

We were delayed and then couldn’t get off due to lightening.
Allegiant Air
7.2
Good
699 reviews
Allegiant Air
7.2
Good
699 reviews

Boarding

7.6

Entertainment

5.5

Comfort

6.8

Crew

8.1

Overall

7.2

Food

5.9

Reviews

1 / 20
4.0
Okay

Sara,Nov 2025

PSC - AZA

We were delayed and then couldn’t get off due to lightening.

Related info for your journey

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

  • How popular is this Portsmouth, New Hampshire to Tampa flight route?

    Flights from Portsmouth Pease Intl to Tampa St. Petersburg have been viewed 1 times in the past calendar month.

  • What is the cheapest airline to fly from Portsmouth, New Hampshire to Tampa round-trip?

    According to our current data, Allegiant Air ($47), offers the cheapest pricing from Portsmouth, New Hampshire to Tampa.

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

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

  • How can I find direct flights from Portsmouth to St Petersburg?

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

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

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

  • What is the cheapest month to book a flight from Portsmouth, New Hampshire to Tampa?

    Currently, February is the cheapest month in which you can book a flight from Portsmouth, New Hampshire to Tampa (average of $32). Flying from Portsmouth, New Hampshire to Tampa in October is currently the most expensive (average of $79). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to St Petersburg

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Fort Lauderdale flights
Boston to Miami flights
Boston to Orlando flights
Boston to Tampa flights
Boston to Fort Myers flights
Boston to West Palm Beach flights
Manchester to Orlando flights
Boston to Sarasota flights
Boston to Key West flights
Boston to Jacksonville flights
Manchester to Tampa flights
Boston to Daytona Beach flights
Manchester to Fort Myers flights
Worcester to Orlando flights
Boston to St Petersburg flights
Portland to Orlando flights
Manchester to Fort Lauderdale flights
Portland to Fort Lauderdale flights
Boston to Pensacola flights
Worcester to Fort Lauderdale flights
Boston to Orlando Sanford Intl flights
Manchester to Miami flights
Portland to Miami flights
Boston to Melbourne flights
Worcester to Fort Myers flights
Manchester to Jacksonville flights
Portland to Tampa flights
Manchester to West Palm Beach flights
Boston to Valparaiso flights
Manchester to Sarasota flights
Boston to Panama City flights
Portland to West Palm Beach flights
Portland to Key West flights
Portland to Jacksonville flights
Portland to Fort Myers flights
Manchester to Key West flights
Portland to Sarasota flights
Portland to Pensacola flights
Boston to Tallahassee flights
Worcester to Miami flights
Worcester to Tampa flights
Portland to Panama City flights
Boston to Gainesville flights
Portland to Valparaiso flights
Worcester to West Palm Beach flights
Portland to Daytona Beach flights
Manchester to Daytona Beach flights
Manchester to Panama City flights
Lebanon to Orlando flights
Manchester to Pensacola flights

Top airline flying from Portsmouth to St Petersburg

Discover the top airline that operate flights from Portsmouth to St Petersburg. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$76Average$222FlexibilityNo cancel feeOn-time88%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.