Note: If you do not select a seat now, you will be randomly assigned a seat from the remaining selection. The only way to ensure that you'll sit together is to select seats at time of booking.

To ensure you sit together on Frontier Airlines without paying extra, the most effective strategy is to include a child aged 13 or younger in your reservation. Following recent consumer protection guidelines, Frontier now guarantees that children will be seated next to at least one accompanying adult for free, provided that adjacent seats are available at the time of booking and the entire party is on the same reservation. If you are a group of adults traveling together and do not wish to pay the "Seat Assignment" fee, you must skip seat selection during the booking process and check-in exactly 24 hours before departure. The automated system tends to group passengers on the same reservation together if there is enough space. However, if the flight is nearly full, you may be randomly scattered throughout the cabin in middle seats. Unlike legacy carriers, Frontier agents at the gate are not required to move people for free to accommodate adult groups, so if sitting together is a priority, paying the seat fee during initial booking remains the only 100% guaranteed method.