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TRS to SUS: distance & flight time
Ronchi De Legionari (Trieste–Friuli Venezia Giulia Airport) → Null (Spirit of St Louis Airport)
4,949 mi
7,964 km · 4,300 nm
10h 10m
estimated nonstop flight time
-7h
time difference · heading northwest
See live TRS→SUS fares Phone-only fares on this route — call free
Flight time details
4,949 miles nonstop takes roughly 10h 10m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- TRS — Trieste–Friuli Venezia Giulia Airport · Ronchi De Legionari, Italy
- SUS — Spirit of St Louis Airport · Null, United States
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 TRS
- POW · Portoroz Airport25 mi away
- AVB · Aviano Air Base44 mi away
- LJU · Ljubljana Jože Pučnik Airport55 mi away
- VCE · Venice Marco Polo Airport58 mi away
Near SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is TRS from SUS?
The flight distance from Ronchi De Legionari (TRS) to Null (SUS) is 4,949 miles (7,964 km, 4,300 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TRS to SUS?
A nonstop flight takes about 10h 10m 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 Ronchi De Legionari and Null?
Null is 7 hours behind Ronchi De Legionari.
What is the cheapest way to fly from TRS to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TRS–SUS that never appear on search engines, with no booking fees.