If you make changes, your EBCI purchase will follow your reservation as long as it is a change to the existing reservation with the same confirmation number. So in short, yes. From SW's site: " EarlyBird Check-In is tied to the Customer’s reservation for which the EarlyBird Check-In purchase was made and will be transferred to the Customer’s new flight if he/she changes the flight at least 25 hours prior to the original flight’s scheduled departure time and so long as the change is to a flight that will depart in more than 25 hours. Since EarlyBird Check-In is associated with a reservation, any changes must be made within the same reservation record (same confirmation number) in which the Customer purchased EarlyBird Check-In." You can also learn more at the Knowledge Base. We had this happen recently, and I was able to work the change in our favor to a more favorable flight time. Hope it works that way for you too, @Mwarnold1222!
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