Hidden city ticketing exploits a quirk in airline pricing. A flight from London to Dallas via New York is sometimes £200 cheaper than a direct London–New York ticket. You simply don't board the connecting flight.
This is not illegal but violates most airlines' terms of service, and they can revoke your frequent flyer miles if caught. Rules: never check luggage (it will go to the final destination), only do it on one-way tickets, and don't make it a habit on the same airline. Sites like Skiplagged automate the search for hidden city opportunities.
Key Rules to Stay Safe
- Hand Luggage Only: Never check a bag on a hidden city ticket.
- One-Way Only: Return tickets will be cancelled if you miss the outbound leg.
- Use Sparingly: Rotate airlines to avoid pattern detection.