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SZT to UNI: distance & flight time
San Cristobal de las Casas (San Cristobal de las Casas Airport) → Union Island (Union Island International Airport)
2,097 mi
3,375 km · 1,822 nm
4h 35m
estimated nonstop flight time
+2h
time difference · heading east
See live SZT→UNI fares Phone-only fares on this route — call free
Flight time details
2,097 miles nonstop takes roughly 4h 35m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SZT — San Cristobal de las Casas Airport · San Cristobal de las Casas, Mexico
- UNI — Union Island International Airport · Union Island, Saint Vincent and the Grenadines
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 SZT
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
Frequently asked questions
How far is SZT from UNI?
The flight distance from San Cristobal de las Casas (SZT) to Union Island (UNI) is 2,097 miles (3,375 km, 1,822 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SZT to UNI?
A nonstop flight takes about 4h 35m 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 San Cristobal de las Casas and Union Island?
Union Island is 2 hours ahead of San Cristobal de las Casas.
What is the cheapest way to fly from SZT to UNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SZT–UNI that never appear on search engines, with no booking fees.