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RCA to PSM: distance & flight time
Rapid City (Ellsworth Air Force Base) → Portsmouth (Portsmouth International at Pease Airport)
1,606 mi
2,585 km · 1,396 nm
3h 37m
estimated nonstop flight time
+2h
time difference · heading east
See live RCA→PSM fares Phone-only fares on this route — call free
Flight time details
1,606 miles nonstop takes roughly 3h 37m 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
- RCA — Ellsworth Air Force Base · Rapid City, 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 RCA
- RAP · Rapid City Regional Airport7 mi away
- SPF · Black Hills Airport-Clyde Ice Field41 mi away
- CDR · Chadron Municipal Airport90 mi away
- GCC · Gillette Campbell County Airport121 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 RCA from PSM?
The flight distance from Rapid City (RCA) to Portsmouth (PSM) is 1,606 miles (2,585 km, 1,396 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RCA to PSM?
A nonstop flight takes about 3h 37m 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 Rapid City and Portsmouth?
Portsmouth is 2 hours ahead of Rapid City.
What is the cheapest way to fly from RCA to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RCA–PSM that never appear on search engines, with no booking fees.