Vantage research · September 2026 · travel
What AI cites for “how to find cheap flights”
ChatGPT cited 2 sites, Gemini cited 0 sites, Perplexity cited 7 sites. No site was cited by all three.
Updated monthlyNext edition 1 October 2026
ChatGPTGeminiPerplexity dots beside a site: the other engines that cite it too
ChatGPT
2 sites · opens with a sentence · no table · opening 12 words
- google.com
- support.google.com
Gemini
0 sites · opens with a sentence · no table · opening 30 words
Answered from what the model already knows: no sites cited.
Perplexity
7 sites · opens with a sentence · no table · opening 27 words
- reddit.comcommunity
- skyscanner.com
- kayak.com
- nationalgeographic.com
- kayak.co.uk
- trip.com
- expedia.com
Is your site one of them?
Ask your AI agent to run Vantage's check_prompt_coverage for your domain and “how to find cheap flights”, on all
three engines, and it will tell you whether you are cited, who is instead, and what changed since your last check.
More travel questions
Each engine was asked once, in English, as from the United States, on 2026-09-23. Answers change from run to run, so read this as a snapshot. Download the data.