Need help booking?
Unpublished phone-only deals available
ZHI to ISC: distance & flight time
Grenchen (Grenchen Airport) → ST MARY\'S (St. Mary's Airport)
654 mi
1,052 km · 568 nm
1h 53m
estimated nonstop flight time
-1h
time difference · heading west
See live ZHI→ISC fares Phone-only fares on this route — call free
Flight time details
654 miles nonstop takes roughly 1h 53m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- ZHI — Grenchen Airport · Grenchen, Switzerland
- ISC — St. Mary's Airport · ST MARY\'S, United Kingdom
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 ISC
- LEQ · Land's End Airport31 mi away
- PZE · Penzance Heliport37 mi away
- NQY · Newquay Cornwall Airport68 mi away
- PLH · Plymouth City Airport103 mi away
Frequently asked questions
How far is ZHI from ISC?
The flight distance from Grenchen (ZHI) to ST MARY\'S (ISC) is 654 miles (1,052 km, 568 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZHI to ISC?
A nonstop flight takes about 1h 53m 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 ISC?
Nonstop service on ZHI–ISC 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 1h 53m nonstop estimate.
What is the time difference between Grenchen and ST MARY\'S?
ST MARY\'S is 1 hour behind Grenchen.
What is the cheapest way to fly from ZHI to ISC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZHI–ISC that never appear on search engines, with no booking fees.
Why are some ZHI to ISC fares phone-only?
Consolidator contracts let us sell certain ZHI–ISC 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.