Cross-device bookings are where travel attribution quietly breaks

Most platforms do not treat a phone search and a laptop booking as one clean path. They may match by login, cookie, hashed email, or device graph, and if none of that connects, the sale can land as direct or last-click from the final device.

For affiliates, the trap is simple: the click looked valuable, but the booking was completed elsewhere. Common failure points are:
• user starts on mobile in an in-app browser
• booking happens later in a desktop session
• the traveler switches Wi-Fi, device, or browser
• cookies are blocked, cleared, or shortened by consent settings

That means your landing page should not depend on one single click. Use short handoff paths, clear hotel or flight intent, and strong repeat signals like destination, dates, and brand name. If the user may return later, capture the session in a way the platform can rejoin, such as email lead flow or authenticated account steps.

Treat cross-device as an attribution problem, not just a UX problem. If your reports show low conversion on mobile and odd desktop wins, the gap may be the handoff between devices, not the offer.

Check the path before you scale. If the platform cannot reconnect the session, your best traffic may look weaker than it really is.