Travel · Growth
Ancillary attach rate
Tracking how often bookings add seats, bags, upgrades or insurance, and where in the flow they do.
Ancillary attach rate, share of bookings
- Seat selection
- Travel insurance
Finding
Seat selection went from 20% to 27% after the offer moved to passenger details; insurance stayed flat.
Who it's for
Revenue and ancillary teams who decide when to offer seats, bags, room upgrades or car rental.
What it solves
Measure attach rate per add-on and per booking step on your warehouse, so offers move to the point in the flow where travelers take them.
Questions it answers
How has seat selection attach changed since June?
Seat selection attach rose from 20% to 27% after the offer moved to the passenger details step in late June.
Did travel insurance change over the same months?
Insurance stayed flat at 9% to 10% of bookings.
- What share of bookings add each ancillary?
- Which booking step converts best for an offer?
- Did moving the seat offer change attach rate?
- Which traveler segments buy the most add-ons?
The impact
- More ancillary revenue per booking
- Offers shown at the step where travelers take them
- One attach-rate definition for product and finance
The data it needs
- Booking events with booking step
- Ancillary purchase events or line items
- Offer impression events
Read in place in your warehouse. Nothing is copied out.
Related use cases
Ancillary attach rate: frequently asked questions
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