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ZHI to ROI: distance & flight time
Grenchen (Grenchen Airport) → Roi Et (Roi Et Airport)
5,697 mi
9,168 km · 4,951 nm
11h 38m
estimated nonstop flight time
+5h
time difference · heading east
See live ZHI→ROI fares Phone-only fares on this route — call free
Flight time details
5,697 miles nonstop takes roughly 11h 38m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- ZHI — Grenchen Airport · Grenchen, Switzerland
- 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 ZHI
- BRN · Bern Belp Airport19 mi away
- BSL · EuroAirport Basel-Mulhouse-Freiburg Airport29 mi away
- QNC · Neuchatel Airport30 mi away
- BOR · Fontaine Airport38 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 ZHI from ROI?
The flight distance from Grenchen (ZHI) to Roi Et (ROI) is 5,697 miles (9,168 km, 4,951 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZHI to ROI?
A nonstop flight takes about 11h 38m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ZHI to ROI?
Nonstop service on ZHI–ROI depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 11h 38m nonstop estimate.
What is the time difference between Grenchen and Roi Et?
Roi Et is 5 hours ahead of Grenchen.
What is the cheapest way to fly from ZHI to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZHI–ROI that never appear on search engines, with no booking fees.
Why are some ZHI to ROI fares phone-only?
Consolidator contracts let us sell certain ZHI–ROI tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.