Airfare Heads up: BWI-Dublin $350 RT...

[Will Collier]

Details here: https://thepointsguy.com/2017/05/deal-dc...-from-350/

[Speedy]

"Airfare deals are typically only available on limited dates. We recommend you use Google Flights to find dates to fly, then book through an online travel agency, such as Orbitz or Expedia, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking."

As far as I know, you always have 24 hours to cancel your fare.

"Note, too, that it’s possible these tickets are mistake fares, which could result in the airlines canceling the tickets. So, if you do book one of these fares, you may want to hold off on booking lodging until it’s confirmed that these tickets will be honored."

Again, as far as I know, the airlines have to honor these and any fares even if they make a mistake.