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YCM to ROI: distance & flight time
Saint Catherines (Niagara District Airport) → Roi Et (Roi Et Airport)
8,335 mi
13,413 km · 7,243 nm
16h 49m
estimated nonstop flight time
+11h
time difference · heading north
See live YCM→ROI fares Phone-only fares on this route — call free
Flight time details
8,335 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 gain when reading arrival times on your ticket.
The two airports
- YCM — Niagara District Airport · Saint Catherines, Canada
- 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 YCM
- YYZ · Lester B. Pearson International Airport41 mi away
- IAG · Niagara Falls International Airport13 mi away
- BUF · Buffalo Niagara International Airport28 mi away
- DU9 · Dunnville Airport31 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 YCM from ROI?
The flight distance from Saint Catherines (YCM) to Roi Et (ROI) is 8,335 miles (13,413 km, 7,243 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YCM to ROI?
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 Saint Catherines and Roi Et?
Roi Et is 11 hours ahead of Saint Catherines.
What is the cheapest way to fly from YCM to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YCM–ROI that never appear on search engines, with no booking fees.