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PMH to ROI: distance & flight time
Portsmouth (Greater Portsmouth Regional Airport) → Roi Et (Roi Et Airport)
8,616 mi
13,865 km · 7,487 nm
17h 22m
estimated nonstop flight time
—
time difference · heading north
See live PMH→ROI fares Phone-only fares on this route — call free
Flight time details
8,616 miles nonstop takes roughly 17h 22m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- PMH — Greater Portsmouth Regional Airport · Portsmouth, United States
- ROI — Roi Et Airport · Roi Et, Thailand
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 PMH
- HTS · Tri-State/Milton J. Ferguson Field36 mi away
- ATO · Ohio University Snyder Field42 mi away
- ILN · Wilmington Airpark65 mi away
- LCK · Rickenbacker International Airport67 mi away
Near ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 mi away
Frequently asked questions
How far is PMH from ROI?
The flight distance from Portsmouth (PMH) to Roi Et (ROI) is 8,616 miles (13,865 km, 7,487 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PMH to ROI?
A nonstop flight takes about 17h 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 cheapest way to fly from PMH to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PMH–ROI that never appear on search engines, with no booking fees.