Need help booking?
Unpublished phone-only deals available
OPO to BIS: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Bismarck (Bismarck Municipal Airport)
4,318 mi
6,949 km · 3,752 nm
8h 56m
estimated nonstop flight time
-6h
time difference · heading northwest
See live OPO→BIS fares Phone-only fares on this route — call free
Flight time details
4,318 miles nonstop takes roughly 8h 56m 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
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- BIS — Bismarck Municipal Airport · Bismarck, 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 BIS
- MBG · Mobridge Municipal Airport86 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport97 mi away
- JMS · Jamestown Regional Airport98 mi away
- MOT · Minot International Airport106 mi away
Frequently asked questions
How far is OPO from BIS?
The flight distance from Porto (OPO) to Bismarck (BIS) is 4,318 miles (6,949 km, 3,752 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to BIS?
A nonstop flight takes about 8h 56m 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 Bismarck?
Bismarck is 6 hours behind Porto.
What is the cheapest way to fly from OPO to BIS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–BIS that never appear on search engines, with no booking fees.