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St Petersburg

$248+ Cheap flights from Portsmouth, NH to Tampa (PSM - PIE)

PSM — PIE
Oct 7 — Oct 141
Wed 10/7
Wed 10/14
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Portsmouth to St Petersburg

One-way flights from Portsmouth to St Petersburg

Sat 12/198:37 pm -
2 stops19h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4$248
Thu 9/176:47 pm -
2 stops40h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4$275
Sun 9/206:47 pm -
3 stops46h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3$315
Wed 12/210:22 am -
2 stops48h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7$319
Thu 12/316:29 pm -
2 stops25h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6$329
Thu 3/47:59 pm -
2 stops26h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7$331
Thu 3/46:47 pm -
3 stops23h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7$339
Thu 12/316:47 pm -
3 stops23h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6$367

Find flight deals from Portsmouth to St Petersburg

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

October

Cheapest in

June

Average price

$341
Provider with most accurate pricing for Portsmouth Pease Intl-Tampa St. Petersburg flight deals.
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Provider most trusted by Cheapflights users for Portsmouth Pease Intl-Tampa St. Petersburg flights.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Portsmouth to Tampa that are best for you.

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Cheapest round-trip
Quickest round-trip

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Sat 12/19

8:37 pm-4:14 pm

2 stops19h 37m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$248

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Thu 9/17

6:47 pm-10:59 am

2 stops40h 12m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$275

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Sun 9/20

6:47 pm-5:03 pm

3 stops46h 16m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$315

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Thu 12/31

6:47 pm-6:36 pm

3 stops23h 49m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$367

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Sun 9/13

11:19 am-2:06 pm

2 stops50h 47m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$392

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Wed 11/25

6:35 pm-2:42 pm

2 stops44h 07m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$398

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Wed 11/25

6:48 pm-2:28 pm

3 stops19h 40m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$405

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Sun 10/18

12:18 pm-9:27 pm

2 stops33h 09m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$420

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Sun 10/18

6:47 pm-4:28 pm

3 stops45h 41m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$478

PortsmouthTampa

PSM Portsmouth Pease Intl - PIE Tampa St. Petersburg

PSMPIE

Portsmouth Pease Intl

Mon 9/14

11:08 am-5:03 pm

2 stops29h 55m

Tampa St. Petersburg

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/4

Sorted by cheapest first

Compare providers for flights from Portsmouth to St Petersburg

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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portsmouth, New Hampshire-Tampa flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

Cheapflights Insights

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

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

It’s typically best to fly out from Portsmouth, New Hampshire to Tampa in the afternoon. Doing so could potentially save you 53% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing St Petersburg

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
7.3
Good
677 reviews

Crew

8.1

Comfort

6.9

Entertainment

5.4

Food

5.8

Boarding

7.7

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.
Allegiant Air
7.3
Good
677 reviews
Allegiant Air
7.3
Good
677 reviews

Crew

8.1

Comfort

6.9

Entertainment

5.4

Food

5.8

Boarding

7.7

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.

Related info for your journey

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

    According to our current data, Allegiant Air ($124), offers the cheapest pricing from Portsmouth, New Hampshire to Tampa. You may be able to fly from Portsmouth, New Hampshire to Tampa for 57% less than the average price by searching for this airline.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Portsmouth to St Petersburg

AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$124Average$210FlexibilityNo cancel feeOn-time88%

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