If you accidently walk to wrong gate will boarding pass beep/scan

[CupCrusher40]

thanks, if beeps what step next

[dfwskier]

next step - go to the correct gate

[DancingDavidE]

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@CupCrusher40 wrote:

thanks, if beeps what step next

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The correct passes are making a Ding, ding, ding noise as each person goes through.

If it's the wrong one it goes "beeeep - bonk" at a lower tone.

Sometimes people are at the wrong gate, I also have been known to show my boarding pass for a connecting flight at the earlier departure and it makes the same noise then also.

Scanning your young kid before you scan your own pass also gets the "bonk" noise.

[CupCrusher40]

Is credit card/ voucher charged twice?

[DancingDavidE]

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@CupCrusher40 wrote:

Is credit card/ voucher charged twice?

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No, the scanning is only for the boarding passes and wouldn't retroactively go back to your card.

[CupCrusher40]

then what makes sure you can not reuse reservation for free for life???

[DancingDavidE]

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@CupCrusher40 wrote:

then what makes sure you can not reuse reservation for free for life???

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It's tied to that specific flight on that day, so if you tried to use it the next day even for the same flight number you'd get "bonk" noise again.

[SoCalFlyer97]

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@DancingDavidE wrote:

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@CupCrusher40 wrote:

then what makes sure you can not reuse reservation for free for life???

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It's tied to that specific flight on that day, so if you tried to use it the next day even for the same flight number you'd get "bonk" noise again.

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@CupCrusher40 :

Think of your boarding pass barcode as an old-school physical ticket that gets turned in to a ticket taker. Once the Gate CSA scans the barcode, the computer "takes" the valid barcode which contains your flight confirmation details and additional secure encrypted code. Once the computer validates and confirms the "taken" barcode is good, you'll hear the good beeps as @DancingDavidE  mentioned. The computer then updates the itinerary on file for that ticketed passenger by recording the boarding. Once that happens, the barcode is "taken" and that same boarding pass cannot be used again.

On fun fact is that the computer and barcode system also ensures nobody is cutting the line by confirming the passenger is boarding with their designated group or later (e.g. If you hold a B-position ticket without pre-boarding and try to slip in with the A boarding group, the computer will catch that the ticket holder is in the incorrect group and return a bonk).

[CupCrusher40]

Got it this is why the date on boarding pass

[SoCalFlyer97]

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@CupCrusher40 wrote:

Got it this is why the date on boarding pass

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Yep...The date of the flight is also part of the confirmation number embedded in the barcode data. That means if one has two separate bookings from SAN-LAS for example, one in the fall and one in the spring and the passenger saved the fall boarding pass as a souvenir following the fall trip, its barcode will 'bonk' and not work for the later spring trip; the separate boarding pass issued for the spring trip is to be used.