Case Study: Island Routes Performance Marketing Optimization
Summary
Audience House has managed the Google Ads strategy for Island Routes for almost a decade focusing on high-intent search queries across multiple island destinations. By implementing AI-driven attribution during call tracking and aggressive return on ad spend bidding, Audience House delivered a 141% increase in revenue with only a 20% increase in ad spend and a 100.61% increase in ROI comparing February with April of 2026.
The Challenge
Island Routes operates in a highly fragmented market with over 500 different tours across 9 Caribbean destinations. Key challenges included:
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Offline Conversion Gap: A significant portion of revenue occurred via telephone. Audience House had previously been tracking Google ad clicks to calls which provided a degree of insight to know if a call occurred as a result of an ad click. However, this strategy was limited by not knowing if the call turned into a sale.
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Budget Inefficiency: The gap in revenue attribution reduces ad spend efficiency by creating a blind spot for identifying campaigns, ad groups or search terms with high ROI.
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Conversion Rate & CPC Variance: CPC and conversion rates fluctuated wildly between destinations and products making the need for a clear ROI picture even more important.
The Strategy
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Advanced Call Attribution: To bridge the offline gap, Audience House integrated call tracking solutions utilizing AI to analyse the contents of the call to determine if a sale was made. If a sale was made, transaction value was passed to Google to attribute an ad click to call centre revenue.
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AI "Sale Made" Tags: Implemented AI-driven tags to identify actual transactions during calls, even when payment links were sent post-call.
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Keyword Value Rules: Assigned specific monetary values to spoken keywords to pass conversion data back into Google Ads for automated bidding optimization.
Key Results & Return On Ad Spend Insights
Metric | % Change |
|---|---|
Avg. Revenue Per Booking | +16.54%
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Revenue | +141.42%
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Cost | +20.27% |
Return On Ad Spend | +100.65% |
Conclusion
AI analysis of phone calls has changed the game for performance marketing. By analysing the contents of the call in real time, Audience House can connect advertising spend to call centre revenue, leading to a higher overall return on ad spend for Island Routes.