- Ticketed Dallas → Manchester, get off at Heathrow
- $370 against the $490 London fare, saves $120
- Ticketed Madrid → Austin, get off at Dallas
- $339 against the $403 home fare, saves $64
- What the plan actually books
- The $498 red-eye out and the $408 flight home
- Effect on the $1,210 total
- $0. It is never counted either way
Both of these are real and both are against the airline's rules, so they are printed with the rules first and the price second, and the plan total is the honest one that ignores them. If you take one, you take it knowingly.
- It only works one-way. The moment you no-show, every later segment on that booking is cancelled, including your flight home.
- Carry-on only, always. A checked bag goes to the ticketed destination and you do not.
- You cannot rely on it. Airlines reroute for weather and delays, and a reroute through a different hub means you never reach the city you actually wanted.
- Internationally you must be admitted to the country of the connection, and the airline may ask for onward proof to a destination you have no intention of reaching.
- It gets worse as it gets popular: fares to secondary cities get repriced, and a route that works today may not next month.
Airlines have cancelled remaining segments, voided frequent-flyer accounts, billed the fare difference and banned repeat offenders. It is not illegal; it is a breach of contract, and the airline holds all the leverage. We do not recommend it.
- Book one-way only: the airline cancels every later segment on the same booking once you no-show.
- Carry-on only. Checked bags go to the ticketed destination.
- Do not add a frequent-flyer number, and don't do this often on one airline; it breaks their contract of carriage and they can cancel miles or refuse future travel.
- If the airline reroutes you (weather, cancellations), you may be sent through a different hub and miss your real destination.
- International: you must be allowed to enter the country of the connection; the airline may ask for onward proof for the ticketed destination.