Need help booking?
Unpublished phone-only deals available
WYS to PSM: distance & flight time
West Yellowstone (Yellowstone Airport) → Portsmouth (Portsmouth International at Pease Airport)
1,989 mi
3,201 km · 1,729 nm
4h 22m
estimated nonstop flight time
+2h
time difference · heading east
See live WYS→PSM fares Phone-only fares on this route — call free
Flight time details
1,989 miles nonstop takes roughly 4h 22m 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
- WYS — Yellowstone Airport · West Yellowstone, 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 WYS
- BZN · Gallatin Field75 mi away
- JAC · Jackson Hole Airport77 mi away
- LVM · Mission Field77 mi away
- IDA · Idaho Falls Regional Airport94 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 WYS from PSM?
The flight distance from West Yellowstone (WYS) to Portsmouth (PSM) is 1,989 miles (3,201 km, 1,729 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WYS to PSM?
A nonstop flight takes about 4h 22m 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 West Yellowstone and Portsmouth?
Portsmouth is 2 hours ahead of West Yellowstone.
What is the cheapest way to fly from WYS to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WYS–PSM that never appear on search engines, with no booking fees.