Claude
Best for: Writing, analysis, code
Anthropic's assistant: strong writing, analysis and coding, with projects and artifacts for longer work.
Visit Claude ↗Home / Use case
Find cheap flights and watch prices
“I want the cheapest good flight, and to know if the price drops.”
AI can search with your real rules (nonstop, times, airlines) and set up a price watch. Some fares can be rebooked or credited if prices drop after you buy.
Fix it yourself in 3 steps
- Write your rules: airports, date range, times, nonstop or not, bags.
- Ask for the cheapest options that fit, with total price including bags.
- Set up a price alert, and after booking check whether a drop earns you a credit.
Copy this prompt
Find the cheapest flights from [airports] to [airports] between [dates], [nonstop only?], leaving after [time], [bags]. Show 5 options with total price including bags and the fare rules (changes, refunds). Tell me how to set a price alert. Don't book anything — stop after the list.
Fill in the [brackets]. Each prompt says when the AI should stop, so it doesn't wander off.
Agents people used for this: Perplexity Comet, ChatGPT Agent, Meta Muse, Dots.
Inspired by real examples collected at agentusecases.ai.
📚 10 real stories of people doing this with AI agents
- Ask an always-on Slack agent to pick flight dates · Dots | Codex
- Find a cheaper Rome flight and hotel combination · custom-built or unnamed agent
- Find cheapest nonstop flights on Google Flights with constraints · ChatGPT Agent
- Organize saved recipes and research trip flights · Meta Muse
- Plan a London walking tour and hunt cheap flights · Perplexity Comet
- Reprice booked flights when prices drop · custom-built or unnamed agent
- Search flights with airline constraints using Comet · Perplexity Comet
- Search for a wedding flight to New York · Perplexity Comet
- Search for cheap round-trip flights from JFK · ChatGPT Agent
- Track Las Vegas flight prices and find return flights · Meta Muse
Collected at AgentUseCases.ai.
Tools for this
ChatGPT
Best for: Widest feature set
OpenAI's assistant with the broadest feature set: voice, images, search and a large app ecosystem.
Visit ChatGPT ↗Grok Bot
Best for: Chores that repeat — done for you
The easiest AI helper for everyday people: show it a chore once — a morning brief, checking a bill, watching for a refund — and it keeps doing it while you're away, checking in only when it needs your OK. Works from the Grok app on your phone and computer (beta).
Visit Grok Bot ↗Grok
Best for: Real-time info, everywhere you go
xAI's assistant with real-time X data — on iPhone, Android, desktop, the web, X, and built into Tesla cars. Want it to do chores on its own? See Grok Bot.
Visit Grok ↗Gemini
Best for: Google Workspace users
Google's assistant, woven into Gmail, Docs and Android. Strongest if you live in Google's apps.
Visit Gemini ↗Perplexity
Best for: Research with citations
An answer engine that searches the web and cites its sources. Built for research questions.
Visit Perplexity ↗