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CWI to PSM: distance & flight time
Clinton (Clinton Municipal Airport) → Portsmouth (Portsmouth International at Pease Airport)
996 mi
1,603 km · 865 nm
2h 38m
estimated nonstop flight time
+1h
time difference · heading east
See live CWI→PSM fares Phone-only fares on this route — call free
Flight time details
996 miles nonstop takes roughly 2h 38m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CWI — Clinton Municipal Airport · Clinton, 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 CWI
- MLI · Quad City International Airport28 mi away
- DBQ · Dubuque Regional Airport44 mi away
- GBG · Galesburg Municipal Airport62 mi away
- IOW · Iowa City Municipal Airport64 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 CWI from PSM?
The flight distance from Clinton (CWI) to Portsmouth (PSM) is 996 miles (1,603 km, 865 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CWI to PSM?
A nonstop flight takes about 2h 38m 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 Clinton and Portsmouth?
Portsmouth is 1 hour ahead of Clinton.
What is the cheapest way to fly from CWI to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CWI–PSM that never appear on search engines, with no booking fees.