Need help booking?
Unpublished phone-only deals available
STK to PSM: distance & flight time
Sterling (Sterling Municipal Airport) → Portsmouth (Portsmouth International at Pease Airport)
1,668 mi
2,684 km · 1,449 nm
3h 44m
estimated nonstop flight time
+2h
time difference · heading east
See live STK→PSM fares Phone-only fares on this route — call free
Flight time details
1,668 miles nonstop takes roughly 3h 44m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- STK — Sterling Municipal Airport · Sterling, United States
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STK
- AKO · Colorado Plains Regional Airport30 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field37 mi away
- DEN · Denver International Airport91 mi away
- GXY · Greeley–Weld County Airport73 mi away
Near PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Frequently asked questions
How far is STK from PSM?
The flight distance from Sterling (STK) to Portsmouth (PSM) is 1,668 miles (2,684 km, 1,449 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STK to PSM?
A nonstop flight takes about 3h 44m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Sterling and Portsmouth?
Portsmouth is 2 hours ahead of Sterling.
What is the cheapest way to fly from STK to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STK–PSM that never appear on search engines, with no booking fees.