Need help booking?
Unpublished phone-only deals available
OPO to UTH: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → Udon Thani (Udon Thani Airport)
6,478 mi
10,426 km · 5,629 nm
13h 10m
estimated nonstop flight time
+6h
time difference · heading northeast
See live OPO→UTH fares Phone-only fares on this route — call free
Flight time details
6,478 miles nonstop takes roughly 13h 10m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- UTH — Udon Thani Airport · Udon Thani, Thailand
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 UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 mi away
Frequently asked questions
How far is OPO from UTH?
The flight distance from Porto (OPO) to Udon Thani (UTH) is 6,478 miles (10,426 km, 5,629 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to UTH?
A nonstop flight takes about 13h 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 Porto and Udon Thani?
Udon Thani is 6 hours ahead of Porto.
What is the cheapest way to fly from OPO to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–UTH that never appear on search engines, with no booking fees.