Canadian Transportation Agency Rules That Passengers Cannot Take Advantage Of Mistake Fares

In our increasingly electronic age, more air travellers are purchasing flights online, on the basis of posted fare prices.  But what happens in the case of "mistake fares", when the wrong fare price is mistakenly posted online?  Is the airline still required to transport the passenger at the posted price, even if that price is significantly lower than the fare it intended to charge?

In the United States, Department of Transportation (DoT) regulations prohibit airlines from increasing the price of a fare after the ticket has been purchased.  While the precise impact of this regulation in relation to "mistake fares" has been the subject of some debate in the U.S., the DoT has taken the position that it applies to such fares.