Need help booking?
Unpublished phone-only deals available
OPO to TRI: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → BRISTOL (Tri-Cities Regional TN/VA Airport)
3,859 mi
6,210 km · 3,353 nm
8h 2m
estimated nonstop flight time
-5h
time difference · heading west
See live OPO→TRI fares Phone-only fares on this route — call free
Flight time details
3,859 miles nonstop takes roughly 8h 2m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- TRI — Tri-Cities Regional TN/VA Airport · BRISTOL, 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 OPO
- BGZ · Braga Municipal Aerodrome26 mi away
- VRL · Vila Real Airport50 mi away
- VSE · Aerodromo Goncalves Lobato (Viseu Airport)55 mi away
- VGO · Vigo Airport68 mi away
Near TRI
- MRN · Foothills Regional Airport63 mi away
- AVL · Asheville Regional Airport72 mi away
- IKB · Wilkes County Airport75 mi away
- HKY · Hickory Regional Airport76 mi away
Frequently asked questions
How far is OPO from TRI?
The flight distance from Porto (OPO) to BRISTOL (TRI) is 3,859 miles (6,210 km, 3,353 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to TRI?
A nonstop flight takes about 8h 2m 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 Porto and BRISTOL?
BRISTOL is 5 hours behind Porto.
What is the cheapest way to fly from OPO to TRI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–TRI that never appear on search engines, with no booking fees.