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SEA to TRS: distance & flight time
Seattle (Seattle Tacoma International Airport) → Ronchi De Legionari (Trieste–Friuli Venezia Giulia Airport)
5,459 mi
8,785 km · 4,744 nm
11h 10m
estimated nonstop flight time
+9h
time difference · heading northeast
See live SEA→TRS fares Phone-only fares on this route — call free
Flight time details
5,459 miles nonstop takes roughly 11h 10m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 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 SEA from TRS?
The flight distance from Seattle (SEA) to Ronchi De Legionari (TRS) is 5,459 miles (8,785 km, 4,744 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to TRS?
A nonstop flight takes about 11h 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 Seattle and Ronchi De Legionari?
Ronchi De Legionari is 9 hours ahead of Seattle.
What is the cheapest way to fly from SEA to TRS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–TRS that never appear on search engines, with no booking fees.