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ROI to SFZ: distance & flight time
Roi Et (Roi Et Airport) → Smithfield (North Central State Airport)
8,415 mi
13,543 km · 7,313 nm
16h 58m
estimated nonstop flight time
-11h
time difference · heading north
See live ROI→SFZ fares Phone-only fares on this route — call free
Flight time details
8,415 miles nonstop takes roughly 16h 58m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- ROI — Roi Et Airport · Roi Et, Thailand
- SFZ — North Central State Airport · Smithfield, 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 ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 mi away
Near SFZ
- BOS · General Edward Lawrence Logan International Airport39 mi away
- PVD · Theodore Francis Green State Airport14 mi away
- NCO · Quonset State Airport23 mi away
- OWD · Norwood Memorial Airport25 mi away
Frequently asked questions
How far is ROI from SFZ?
The flight distance from Roi Et (ROI) to Smithfield (SFZ) is 8,415 miles (13,543 km, 7,313 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ROI to SFZ?
A nonstop flight takes about 16h 58m 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 Roi Et and Smithfield?
Smithfield is 11 hours behind Roi Et.
What is the cheapest way to fly from ROI to SFZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ROI–SFZ that never appear on search engines, with no booking fees.