I tweeted this deal first from @MileValueAlerts. Follow @MileValueAlerts on Twitterand follow these directions to get a text message every time I tweet from that account. I tweet from @MileValueAlerts only a few times a month because it is designed to be used only for the best and most limited-time deals–like mistake fares–so that you aren’t bombarded by text messages.

Travel from Fort Lauderdale to Cartagena, Colombia (on the Caribbean coast) for $198 roundtrip this Fall.

I tweeted this deal first from @MileValueAlerts. Follow @MileValueAlerts on Twitter and follow these directions to get a text message every time I tweet from that account.

The Department of Transportation has a sweeping rule on the books that should require airlines to honor all mistake fares because canceling mistake fares constitutes “increas[ing] the price” of air transportation after purchase, which is forbidden.

Still alive at 11:42 AM ET on May 7, though fewer dates than at midnight.

I tweeted this deal first from @MileValueAlerts. Follow @MileValueAlerts on Twitter and follow these directions to get a text message every time I tweet from that account.

Update: Still alive on March 19 (sample dates February 3 - 10) for $257 in Norwegian Krone.

Follow @MileValueAlerts on Twitter and follow these directions to get a text message every time I tweet from that account.

A few weeks ago, United's Danish website was way under-pricing First Class tickets from London to the United States, about $100 to anywhere you wanted to go. United said it would not honor those tickets, and I sided with United while noting that United States Department of Transportation (DoT) rules seemed clear that United couldn't unilaterally cancel its tickets.

Now the DoT has weighed in with a statement.

The statement makes clear that United will not have to honor the mistake fares.