(CNN) – Southwest is raising the price for its early bird check-in on some flights. It will go from a flat $15 per person each way to $15, $20 or $25 depending on the length of the flight and the popularity of early bird check-in on the route.
Early bird gives travelers a better boarding position in Southwest’s open seating system. Its early bird service started in 2009 and cost $10 at the time.
The switch to variable pricing will begin August 29.
