ChatGPT agent: Flights & trains
7 cases where people used ChatGPT agent for Flights & trains.
Book a family member's return flight with ChatGPT agent, stopping before payment
A poster asked ChatGPT agent to book a return flight for their mother-in-law with the mother-in-law's specific seating and baggage preferences. They say it found the right flights, followed those instructions, clicked through the FlySafair website and stopped right before payment as asked; refining the prompt a few times made it more efficient.
TravelFlights & trainsChatGPT agentWorkedRecreated promptEvidence: Shown on videoView CaseFind nonstop flights and a hotel under $400 a night with ChatGPT agent
BKA Content's Greg Secrist asked ChatGPT agent for nonstop Salt Lake City to Las Vegas flights for October 8–11 plus hotel rooms under $400 per night. It worked across Delta, Expedia and Booking.com but struggled with JavaScript-heavy pages and date pickers, sometimes looping or freezing; after almost nine minutes it returned some options they say they could have found manually in half the time.
TravelFlights & trainsChatGPT agentPartialRecreated promptEvidence: Article or interviewView CaseFind the cheapest Hamburg–Copenhagen train with ChatGPT agent
Asked (in German) to book the cheapest Hamburg–Copenhagen train for September, ChatGPT agent found a €63.26 fare after about ten minutes on the Deutsche Bahn site, then asked the author to log in; Comet was faster (3:40) but booked legs separately for €70.94.
Poster says:€63.26 vs €70.94 from Comet
TravelFlights & trainsChatGPT agentWorkedRecreated promptEvidence: Article or interviewView CaseHunt last-minute holiday flights with multiple agents (failure case)
Claude Opus 4.5, Gemini 3 Pro and ChatGPT agent mode only matched a manual Google Flights search and were too slow as cheap fares vanished; the humans beat them by about 15%.
TravelFlights & trainsChatGPT agentClaude Opus 4.5 (Antigravity)Gemini 3 ProFailureImproved promptEvidence: Described by posterView CaseFind the best flight options on Skyscanner with ChatGPT agent
ChatGPT agent searched Skyscanner across flexible dates and returned the flight the author would actually book in 3 of 3 tests, though airline sites and 3D Secure blocked it from completing the booking.
TravelFlights & trainsChatGPT agentWorkedEvidence: Screenshots or logsView CaseSearch for cheap flights with ChatGPT agent (failure case)
ChatGPT agent suggested flights costing $1,400 when the poster found an $850 option on their own.
TravelFlights & trainsChatGPT agentFailureImproved promptEvidence: Described by posterView CaseFind the cheapest one-way flight across two departure cities with ChatGPT agent
From a vague brief, ChatGPT agent searched flights from Ljubljana or Zagreb to Bordeaux over a two-week window and found a €141.48 fare in 12 minutes.
TravelFlights & trainsChatGPT agentWorkedImproved promptEvidence: Screenshots or logsBeginner-friendlyView Case