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WBU to TRS: distance & flight time
Boulder (Boulder Municipal Airport) → Ronchi De Legionari (Trieste–Friuli Venezia Giulia Airport)
5,400 mi
8,691 km · 4,693 nm
11h 3m
estimated nonstop flight time
+8h
time difference · heading northeast
See live WBU→TRS fares Phone-only fares on this route — call free
Flight time details
5,400 miles nonstop takes roughly 11h 3m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- TRS — Trieste–Friuli Venezia Giulia Airport · Ronchi De Legionari, Italy
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 WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
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 WBU from TRS?
The flight distance from Boulder (WBU) to Ronchi De Legionari (TRS) is 5,400 miles (8,691 km, 4,693 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to TRS?
A nonstop flight takes about 11h 3m 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 Boulder and Ronchi De Legionari?
Ronchi De Legionari is 8 hours ahead of Boulder.
What is the cheapest way to fly from WBU to TRS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–TRS that never appear on search engines, with no booking fees.