The Kuta Resort in Bali Indonesia is the cheapest Best Western brand hotel anywhere. It has a lowest recorded nightly rate of $20 for the upcoming year.

– Reviews of Best Western Kuta Resort

Source: Full list of the 20 Cheapest Best Western Hotels in the World  Resources for Promotion Maximization and Mattress Running. Prices include taxes/fees, but will vary slightly based on date, current promotions, and currency fluctuation.