Portsmouth International Airport at Pease
Portsmouth, United StatesPSM / KPSM
Regional airport · 16 direct destinations · 1 runway · longest runway 11,322 ft
57 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Portsmouth → Fort Cavazos
PSM
PortsmouthPortsmouth International Airport at Pease
PortsmouthPortsmouth International Airport at PeaseGRKFort CavazosKilleen Regional Airport / Robert Gray Army Airfield
Fort CavazosKilleen Regional Airport / Robert Gray Army Airfield- Distance
- 1,693 mi
- Estimated flight time
- ~3h 55m
Fort Cavazos is currently 1 hour behind Portsmouth.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 1
- busiest month · Oct
- 3 hr 32 min
- measured flight time
- 3 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- –Feb
- –Mar
- –Apr
- –May
- 1Jun
- 1Jul
- –Aug
- –Sep
- 1Oct2025
- –Nov
- –Dec
Airlines
Who flies it
Atlas Airnow and then
Through the day
Departure times
Local time in Portsmouth. Most departures between 05:00 and 08:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0Mon
- 0Tue
- 0.1Wed
- 0.1Thu
- 0Fri
- 0Sat
- 0Sun
Fleet
Aircraft observed
- Boeing 747-400B74444%
- Boeing 767-300B76344%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | Not seen in this month. | ||
| March 2026 | Not seen in this month. | ||
| April 2026 | Not seen in this month. | ||
| May 2026 | Not seen in this month. | ||
| June 2026 | 1 | 5 |
|
| July 2026 | 1 | 2 |
|
| August 2026 | Not seen in this month. | ||
| September 2026 | Not seen in this month. | ||
| October 2025 | 1 | 2 |
|
| November 2025 | Not seen in this month. | ||
| December 2025 | Not seen in this month. | ||
Airlines observed on this route
From observed callsign routes on PSM-GRK - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The 2nd longest observed direct route from PSM, out of 16.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Portsmouth: 16.
- Direct destinations observed from Fort Cavazos: 28.
The airports on this route
Killeen Regional Airport / Robert Gray Army Airfield
Fort Cavazos, United StatesGRK / KGRK
Regional airport · 28 direct destinations · 1 runway · longest runway 9,997 ft
64 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
About the route from Portsmouth to Fort Cavazos
The observed direct connection between Portsmouth International Airport at Pease (PSM) and Killeen Regional Airport / Robert Gray Army Airfield (GRK) covers approximately 1,693 mi. The estimated flight time is around 3h 55m. Atlas Air has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Portsmouth from Fort Cavazos by air?
- The great-circle distance between Portsmouth International Airport at Pease and Killeen Regional Airport / Robert Gray Army Airfield is approximately 1,693 mi.
- How long is the flight from Portsmouth to Fort Cavazos?
- Based on the distance, the estimated flight time is about 3h 55m. This is an estimate, not a schedule.
- Is there a direct connection from Portsmouth to Fort Cavazos?
- Yes, a direct connection between PSM and GRK has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Atlas Air.
- How often is there a flight from Portsmouth to Fort Cavazos?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 9 observed flights. Mainly Atlas Air. That is an observation, not a timetable.
- What is the current time difference between Portsmouth and Fort Cavazos?
- Fort Cavazos is currently 1 hour behind Portsmouth.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.