Irish Clock
Near Lum Udom Night Market
Irish pub in Udon Thani is a popular haunt for local expats and with 7 rooms on the premises, for Westerners passing through too. Good food, good company and free wi-fi. You might have to ask for the password and get the boss man to set it up as you need more than just a password but once done, the wi-fi is free!
Aussie Pub
277/136-139 Charoensri complex, Teekathananont Road
A bar and guesthouse with free wi-fi too!
Udon Airport
Where the planes go!
It’s very strong the area on the ground floor between the internet terminals and the Air Asia / Nok Air ticket counters (not check in counters). The signal is weak in the departures area (after security), but if you sit near the escalators near the toilets, you can still get it sometimes.