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ROI to IAG: distance & flight time
Roi Et (Roi Et Airport) → Niagara Falls (Niagara Falls International Airport)
8,341 mi
13,424 km · 7,248 nm
16h 49m
estimated nonstop flight time
-11h
time difference · heading north
See live ROI→IAG fares Phone-only fares on this route — call free
Flight time details
8,341 miles nonstop takes roughly 16h 49m 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
- IAG — Niagara Falls International Airport · Niagara Falls, 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 IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 mi away
Frequently asked questions
How far is ROI from IAG?
The flight distance from Roi Et (ROI) to Niagara Falls (IAG) is 8,341 miles (13,424 km, 7,248 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ROI to IAG?
A nonstop flight takes about 16h 49m 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 Niagara Falls?
Niagara Falls is 11 hours behind Roi Et.
What is the cheapest way to fly from ROI to IAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ROI–IAG that never appear on search engines, with no booking fees.