Click-through rate is one of the most visible metrics in Google Ads — and one of the most misunderstood. It’s not just a vanity number. CTR affects your Quality Score, which affects your Ad Rank and your CPC. For travel advertisers competing against OTAs and large booking platforms on expensive keywords, understanding CTR and what drives it isn’t optional — it’s fundamental to running campaigns that actually make commercial sense.
What is Click-Through Rate, and how is it calculated?
CTR is the percentage of times your ad is clicked when it’s shown. The formula is simple: clicks divided by impressions, expressed as a percentage. An ad shown 1,000 times that receives 30 clicks has a 3% CTR. In our experience, CTR benchmarks in travel PPC vary significantly by campaign type — branded campaigns where you’re bidding on your own operator name will typically see CTRs of 10% or higher, while generic destination or activity searches may sit between 3–6% on a well-optimised campaign.
What exactly is a good CTR?
There’s no universal “good CTR” — it depends on the keyword, the campaign type, and the competitive environment. What we’ve found is that travel advertisers who obsess over a single CTR benchmark often make poor optimisation decisions as a result. A 2% CTR on a competitive generic travel keyword in a highly competitive auction may represent good performance; the same 2% on a branded campaign is almost certainly poor. Compare your CTR to your own historical benchmarks and, where available, to impression-weighted CTR data rather than treating any single number as a target.
How does CTR impact Ad Rank?
Ad Rank determines where your ad appears on the SERP — and expected CTR is one of Google’s inputs into Ad Rank. Google estimates the likelihood that users will click your ad relative to other ads in the same auction. A higher expected CTR improves your Ad Rank, which means better positions — potentially at the same or even lower bid than a competitor with a lower expected CTR. For tour operators competing against well-funded OTAs, this matters: strong ad copy that earns a high expected CTR can earn you comparable positions to advertisers who are simply outbidding you.
How does CTR impact your Quality Score?
Expected CTR is one of the three components of Quality Score. A higher Quality Score means lower CPCs — Google rewards advertisers who consistently produce relevant, high-performing ads. In travel, this creates a compounding advantage: operators who invest in ad copy quality, test headlines regularly, and maintain strong CTRs over time earn progressively lower CPCs on the same keywords. Clients often ask us how to reduce CPC without reducing bids — improving Quality Score through better ad copy and targeting is almost always part of the answer.
Is a low CTR always a bad thing?
Not always — but it deserves investigation. A low CTR can indicate poor ad copy, an irrelevant keyword, a keyword match type that’s too broad, or ads showing to audiences who aren’t ready to act. For travel campaigns, it sometimes reflects a keyword that’s driving informational searches (people looking for destination information) rather than commercial intent. In those cases, the right response isn’t necessarily to optimise the CTR — it may be to reconsider whether that keyword belongs in your conversion-focused campaigns at all, or whether it’s better served by a content or display approach.
Get in Touch
If you’d like help improving CTR and ad performance across your travel PPC campaigns, get in touch with the Summon team. We work exclusively with tour operators, ferry companies, airlines and activity providers.