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ICAO KPSM

Portsmouth International Airport at Pease (PSM)

Portsmouth International Airport at Pease handled 14,938 passengers in July 2026, up 13.5% on a year earlier, according to the US BTS.

Official · July 2026 according to the US BTS Full count · domestic + international

Flights (arrivals + departures) over time

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January125115▼ 8.0%
February146125▼ 14.4%
March164124▼ 24.4%
April206168▼ 18.4%
May122140▲ 14.8%
June105108▲ 2.9%
July123128▲ 4.1%
August115––
September72––
October127–in progress
November109––
December123––
Year to date (Jan–Jul)991908▼ 8.4%

Passengers over time

Full count · domestic + international
The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January12,16212,721▲ 4.6%
February15,60716,848▲ 8.0%
March19,07316,352▼ 14.3%
April25,85821,782▼ 15.8%
May12,14915,808▲ 30.1%
June10,78312,415▲ 15.1%
July13,16414,938▲ 13.5%
August12,990––
September7,125––
October13,712–in progress
November11,783––
December13,899––
Year to date (Jan–Jul)108,796110,864▲ 1.9%

Tonnes of cargo over time

Full count · domestic + international
The most recent periods19 periods
PeriodTonnes of cargo 2025Tonnes of cargo 2026Change vs last year
January480398▼ 17.1%
February732146▼ 80.1%
March228128▼ 43.7%
April193527▲ 173.3%
May328869▲ 165.4%
June383406▲ 6.0%
July479195▼ 59.3%
August213––
September610––
October521–in progress
November404––
December244––
Year to date (Jan–Jul)2,8222,669▼ 5.4%

Seats offered over time

Full count · domestic + international
The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January18,54817,560▼ 5.3%
February21,88820,552▼ 6.1%
March24,44018,702▼ 23.5%
April34,30825,938▼ 24.4%
May17,68821,394▲ 21.0%
June13,81414,472▲ 4.8%
July17,64617,418▼ 1.3%
August17,826––
September9,912––
October18,463–in progress
November16,076––
December18,569––
Year to date (Jan–Jul)148,332136,036▼ 8.3%

Domestic / International

July 2026
  • Domestic 95.3% 122
  • International 4.7% 6

Domestic / International — flights (arrivals + departures)

Full count · domestic + international

Domestic

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January115103▼ 10.4%
February139122▼ 12.2%
March157117▼ 25.5%
April203162▼ 20.2%
May115131▲ 13.9%
June98101▲ 3.1%
July115122▲ 6.1%
August111––
September65––
October120–in progress
November104––
December120––
Year to date (Jan–Jul)942858▼ 8.9%

International

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January1012▲ 20.0%
February73▼ 57.1%
March770.0%
April36▲ 100.0%
May79▲ 28.6%
June770.0%
July86▼ 25.0%
August4––
September7––
October7–in progress
November5––
December3––
Year to date (Jan–Jul)4950▲ 2.0%

Domestic / International — passengers

Full count · domestic + international

Domestic

The most recent periods13 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January11,89811,985▲ 0.7%
February–16,521–
March19,06116,346▼ 14.2%
April–21,486–
May12,14115,799▲ 30.1%
June10,75612,248▲ 13.9%
July13,15914,933▲ 13.5%
August–––
September7,119––
October––in progress
November–––
December–––

International

The most recent periods13 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January264736▲ 178.8%
February–327–
March126▼ 50.0%
April–296–
May89▲ 12.5%
June27167▲ 518.5%
July550.0%
August–––
September6––
October––in progress
November–––
December–––

Domestic / International — tonnes of cargo

Full count · domestic + international

Domestic

The most recent periods19 periods
PeriodTonnes of cargo 2025Tonnes of cargo 2026Change vs last year
January170199▲ 16.9%
February29890▼ 69.8%
March12158▼ 52.1%
April89208▲ 135.1%
May119435▲ 264.6%
June191203▲ 6.0%
July240108▼ 55.0%
August74––
September271––
October239–in progress
November202––
December122––
Year to date (Jan–Jul)1,2291,301▲ 5.9%

International

The most recent periods19 periods
PeriodTonnes of cargo 2025Tonnes of cargo 2026Change vs last year
January310199▼ 35.8%
February43356▼ 87.1%
March10770▼ 34.2%
April104318▲ 205.7%
May208435▲ 108.6%
June191203▲ 6.0%
July24087▼ 63.7%
August139––
September339––
October282–in progress
November202––
December122––
Year to date (Jan–Jul)1,5941,368▼ 14.2%

Domestic / International — seats offered

Full count · domestic + international

Domestic

The most recent periods13 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January18,18616,229▼ 10.8%
February–20,008–
March24,38218,666▼ 23.4%
April–25,548–
May17,67420,968▲ 18.6%
June13,76214,181▲ 3.0%
July17,61617,396▼ 1.2%
August–––
September9,898––
October––in progress
November–––
December–––

International

The most recent periods13 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January3621,331▲ 267.7%
February–544–
March5836▼ 37.9%
April–390–
May14426▲ 2,942.9%
June52291▲ 459.6%
July3022▼ 26.7%
August–––
September14––
October––in progress
November–––
December–––

Load factor (computed)

Full count · domestic + international

Passengers ÷ seats offered, both as reported by the US BTS for the same months. Computed by us; the two source series are shown on this page.

The most recent periods19 periods
PeriodLoad factor 2025Load factor 2026Change vs last year
January65.6%72.4%▲ 10.5%
February71.3%82.0%▲ 15.0%
March78.0%87.4%▲ 12.0%
April75.4%84.0%▲ 11.4%
May68.7%73.9%▲ 7.6%
June78.1%85.8%▲ 9.9%
July74.6%85.8%▲ 15.0%
August72.9%––
September71.9%––
October74.3%–in progress
November73.3%––
December74.9%––
Year-to-date average (Jan–Jul)73.1%81.6%▲ 11.7%

Seasonality · flights (arrivals + departures) by month

Year JanFebMarAprMayJunJulAugSepOctNovDec
2024 58 79 83 137 72 59 98 79 62 81 106 115
2025 125 146 164 206 122 105 123 115 72 127 109 123
2026 115 125 124 168 140 108 128
International share 5% of flights (arrivals + departures) in July 2026
Series depth 36 years from 1990

Busiest destinations

Flights recorded between Oct 12, 2024 and Jul 31, 2026, counted from flight records published by the US BTS. Not a current timetable.

Busiest destinations FlightsDistance (km)
Punta Gorda Airport PSM–PGD → 912 2,060

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Recorded flights861Portsmouth International Airport at Pease

Departure hour

Recorded flights Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · 1 · 1 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 47 · 47 recorded · 47 measured · Source: the US BTS 10:00 · 133 · 133 recorded · 133 measured · Source: the US BTS 11:00 · 160 · 160 recorded · 160 measured · Source: the US BTS 12:00 · 95 · 95 recorded · 94 measured · Source: the US BTS 13:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 14:00 · 14 · 14 recorded · 14 measured · Source: the US BTS 15:00 · 9 · 9 recorded · 9 measured · Source: the US BTS 16:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 17:00 · 42 · 42 recorded · 42 measured · Source: the US BTS 18:00 · 125 · 125 recorded · 123 measured · Source: the US BTS 19:00 · 115 · 115 recorded · 114 measured · Source: the US BTS 20:00 · 54 · 54 recorded · 54 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00Fewer than 200 measured departures—01
04:00No observations———
05:00No observations———
06:00No observations———
07:00No observations———
08:00No observations———
09:00Fewer than 200 measured departures—4747
10:00Fewer than 200 measured departures—133133
11:00Fewer than 200 measured departures—160160
12:00Fewer than 200 measured departures—9495
13:00Fewer than 200 measured departures—5656
14:00Fewer than 200 measured departures—1414
15:00Fewer than 200 measured departures—99
16:00Fewer than 200 measured departures—1010
17:00Fewer than 200 measured departures—4242
18:00Fewer than 200 measured departures—123125
19:00Fewer than 200 measured departures—114115
20:00Fewer than 200 measured departures—5454
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: domestic flights only
Monday · 120 · 120 recorded · 119 measured · Source: the US BTS Tuesday · 42 · 42 recorded · 41 measured · Source: the US BTS Wednesday · 121 · 121 recorded · 121 measured · Source: the US BTS Thursday · 143 · 143 recorded · 143 measured · Source: the US BTS Friday · 121 · 121 recorded · 121 measured · Source: the US BTS Saturday · 168 · 168 recorded · 168 measured · Source: the US BTS Sunday · 146 · 146 recorded · 143 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—119120
TuesdayFewer than 200 measured departures—4142
WednesdayFewer than 200 measured departures—121121
ThursdayFewer than 200 measured departures—143143
FridayFewer than 200 measured departures—121121
SaturdayFewer than 200 measured departures—168168
SundayFewer than 200 measured departures—143146

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: domestic flights only
Jan · 62 · 62 recorded · 61 measured · Source: the US BTS Feb · 83 · 83 recorded · 82 measured · Source: the US BTS Mar · 91 · 91 recorded · 91 measured · Source: the US BTS Apr · 132 · 132 recorded · 132 measured · Source: the US BTS May · 91 · 91 recorded · 90 measured · Source: the US BTS Jun · 69 · 69 recorded · 69 measured · Source: the US BTS Jul · 76 · 76 recorded · 76 measured · Source: the US BTS Aug · 38 · 38 recorded · 38 measured · Source: the US BTS Sep · 21 · 21 recorded · 21 measured · Source: the US BTS Oct · 57 · 57 recorded · 57 measured · Source: the US BTS Nov · 64 · 64 recorded · 64 measured · Source: the US BTS Dec · 77 · 77 recorded · 75 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—6162
FebFewer than 200 measured departures—8283
MarFewer than 200 measured departures—9191
AprFewer than 200 measured departures—132132
MayFewer than 200 measured departures—9091
JunFewer than 200 measured departures—6969
JulFewer than 200 measured departures—7676
AugFewer than 200 measured departures—3838
SepFewer than 200 measured departures—2121
OctFewer than 200 measured departures—5757
NovFewer than 200 measured departures—6464
DecFewer than 200 measured departures—7577

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 78.5% 676
  • Delayed >15 min 20.9% 180
  • Cancelled 0.6% 5
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Environment

Air pollutants at the airport (EPA estimate)

Modelled estimate, not a measurement: aircraft below 3,000 ft (landing and take-off), ground support equipment and auxiliary power units, plus any stationary sources the state reported at the airport site. Cruise emissions are not included.

In 2023, the US EPA estimated 39.1 tonnes of nitrogen oxides (NOₓ) and 5.1 tonnes of fine particles (PM2.5) from activity at Portsmouth International Airport at Pease, according to the EPA National Emissions Inventory.

PollutantUnit201720202023
NOₓ (Nitrogen oxides)tonnes44.630.539.1
CO (Carbon monoxide)tonnes123117169
SO₂ (Sulphur dioxide)tonnes4.63.24.1
VOC (Volatile organic compounds)tonnes22.716.621.0
PM2.5 (Fine particles)tonnes4.13.95.1
PM10 (Particulate matter)tonnes4.54.35.8
Leadkg59.962.9115
CO₂ (Carbon dioxide)tonnes1,3159,956—

The inventory is published every three years. Coverage changes between editions (about 19,300 airport sites in 2017, 6,000 in 2020, 12,700 in 2023), 2020 reflects the pandemic drop in traffic, and EPA updates its aircraft model between editions — so the columns are not a trend (Los Angeles: 3,562 tonnes of NOₓ in 2017, 8,810 in 2023). CO₂ is only reported for some sites in 2017, for all sites in 2020, and not at all in 2023. EPA publishes US customary units; converted here to metric tonnes (× 0.907) and, for lead, kilograms.

US EPA — National Emissions Inventory

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