Need help booking?
Unpublished phone-only deals available
IDA to PSM: distance & flight time
Idaho Falls (Idaho Falls Regional Airport) → Portsmouth (Portsmouth International at Pease Airport)
2,053 mi
3,304 km · 1,784 nm
4h 30m
estimated nonstop flight time
+2h
time difference · heading east
See live IDA→PSM fares Phone-only fares on this route — call free
Flight time details
2,053 miles nonstop takes roughly 4h 30m 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
- IDA — Idaho Falls Regional Airport · Idaho Falls, 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 IDA
- PIH · Pocatello Regional Airport49 mi away
- JAC · Jackson Hole Airport67 mi away
- WYS · Yellowstone Airport94 mi away
- BYI · Burley Municipal Airport109 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 IDA from PSM?
The flight distance from Idaho Falls (IDA) to Portsmouth (PSM) is 2,053 miles (3,304 km, 1,784 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IDA to PSM?
A nonstop flight takes about 4h 30m 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 Idaho Falls and Portsmouth?
Portsmouth is 2 hours ahead of Idaho Falls.
What is the cheapest way to fly from IDA to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IDA–PSM that never appear on search engines, with no booking fees.