Need help booking?
Unpublished phone-only deals available
OPO to HOU: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Houston (William P Hobby Airport)
4,740 mi
7,628 km · 4,119 nm
9h 46m
estimated nonstop flight time
-6h
time difference · heading west
See live OPO→HOU fares Phone-only fares on this route — call free
Flight time details
4,740 miles nonstop takes roughly 9h 46m gate to gate, flying west. 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
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- HOU — William P Hobby Airport · Houston, 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 HOU
- IAH · George Bush Intercontinental Houston Airport24 mi away
- EFD · Ellington Airport8 mi away
- AAP · Andrau Airpark19 mi away
- SGR · Sugar Land Regional Airport23 mi away
Frequently asked questions
How far is OPO from HOU?
The flight distance from Porto (OPO) to Houston (HOU) is 4,740 miles (7,628 km, 4,119 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to HOU?
A nonstop flight takes about 9h 46m 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 Houston?
Houston is 6 hours behind Porto.
What is the cheapest way to fly from OPO to HOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–HOU that never appear on search engines, with no booking fees.