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UNI to ACH: distance & flight time
Union Island (Union Island International Airport) → Altenrhein (St Gallen Altenrhein Airport)
4,693 mi
7,553 km · 4,078 nm
9h 40m
estimated nonstop flight time
+6h
time difference · heading northeast
See live UNI→ACH fares Phone-only fares on this route — call free
Flight time details
4,693 miles nonstop takes roughly 9h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- UNI — Union Island International Airport · Union Island, Saint Vincent and the Grenadines
- ACH — St Gallen Altenrhein Airport · Altenrhein, 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 UNI
- CIW · Canouan Airport8 mi away
- MQS · Mustique Airport25 mi away
- BQU · J F Mitchell Airport29 mi away
- SVD · Argyle International Airport42 mi away
Near ACH
- HOH · Hohenems-Dornbirn Airport9 mi away
- FDH · Friedrichshafen Airport13 mi away
- ZRH · Zürich Airport47 mi away
- FMM · Memmingen Allgau Airport47 mi away
Frequently asked questions
How far is UNI from ACH?
The flight distance from Union Island (UNI) to Altenrhein (ACH) is 4,693 miles (7,553 km, 4,078 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UNI to ACH?
A nonstop flight takes about 9h 40m 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 UNI to ACH?
Nonstop service on UNI–ACH 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 9h 40m nonstop estimate.
What is the time difference between Union Island and Altenrhein?
Altenrhein is 6 hours ahead of Union Island.
What is the cheapest way to fly from UNI to ACH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UNI–ACH that never appear on search engines, with no booking fees.
Why are some UNI to ACH fares phone-only?
Consolidator contracts let us sell certain UNI–ACH 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.