Need help booking?
Unpublished phone-only deals available
UNN to ZHI: distance & flight time
Ranong (Ranong Airport) → Grenchen (Grenchen Airport)
5,778 mi
9,299 km · 5,021 nm
11h 48m
estimated nonstop flight time
-5h
time difference · heading northwest
See live UNN→ZHI fares Phone-only fares on this route — call free
Flight time details
5,778 miles nonstop takes roughly 11h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- UNN — Ranong Airport · Ranong, Thailand
- ZHI — Grenchen Airport · Grenchen, Switzerland
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 UNN
- KAW · Kawthoung Airport19 mi away
- URT · Surat Thani Airport58 mi away
- CJM · Chumphon Airport83 mi away
- VBP · Bokpyinn Airport95 mi away
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
Frequently asked questions
How far is UNN from ZHI?
The flight distance from Ranong (UNN) to Grenchen (ZHI) is 5,778 miles (9,299 km, 5,021 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UNN to ZHI?
A nonstop flight takes about 11h 48m 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 UNN to ZHI?
Nonstop service on UNN–ZHI 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 48m nonstop estimate.
What is the time difference between Ranong and Grenchen?
Grenchen is 5 hours behind Ranong.
What is the cheapest way to fly from UNN to ZHI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UNN–ZHI that never appear on search engines, with no booking fees.
Why are some UNN to ZHI fares phone-only?
Consolidator contracts let us sell certain UNN–ZHI 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.