You click the link in the email to retrieve your QR code. Anytime you need to present your boarding pass – at security checkpoints or at the gate – you hold up your QR code to a scanner, which reads the information. The QR code acts as a unique link to all of your flight information.
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How to Use QR Codes as Mobile Boarding Passes
The airline sends your boarding document, with a link to your QR code, directly to your mobile device via e-mail.
You click the link in the email to retrieve your QR code.
There are several ways to get a boarding pass. You can get it on the airline's website and print it on paper. Or pull it up on your phone in the airline's app. You can also print it at the airport.
Can I use my mobile boarding pass to go through the security checkpoint and board my flight? Yes, simply show your mobile boarding pass on a mobile phone, iPad, or Apple Watch and a valid form of identification to the TSA Agent at security to proceed.
Depending on the requirements of airport authorities, you will need to present a mobile boarding pass, a paper boarding pass printed out by you or a paper boarding pass picked up from the check-in desk.
In most cases, you will only need to go to check-in when you have checked-in online if you need to drop off an item of hold baggage. Please ensure that you are aware of the hand baggage requirements for your specific airline before you travel.
You can print your boarding pass online, at the airport using a self-service kiosk, or from the ticket counter on the day of departure, prior to your flight's scheduled departure time.
If you check in at the airport, you may print your boarding pass from a self-service kiosk near check-in, or an airline representative can print one for you at the check-in counter. If you lose your pre-printed boarding pass or misplace the link, you can reprint your boarding pass when you get to the airport.