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TRS to IAD: distance & flight time
Ronchi De Legionari (Trieste–Friuli Venezia Giulia Airport) → Washington (Washington Dulles International Airport)
4,406 mi
7,090 km · 3,828 nm
9h 6m
estimated nonstop flight time
-6h
time difference · heading northwest
See live TRS→IAD fares Phone-only fares on this route — call free
Flight time details
4,406 miles nonstop takes roughly 9h 6m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- TRS — Trieste–Friuli Venezia Giulia Airport · Ronchi De Legionari, Italy
- IAD — Washington Dulles International Airport · Washington, 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
Frequently asked questions
How far is TRS from IAD?
The flight distance from Ronchi De Legionari (TRS) to Washington (IAD) is 4,406 miles (7,090 km, 3,828 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TRS to IAD?
A nonstop flight takes about 9h 6m 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 Washington?
Washington is 6 hours behind Ronchi De Legionari.
What is the cheapest way to fly from TRS to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TRS–IAD that never appear on search engines, with no booking fees.