There are some situations when you miss a flight due to various factors, as this is possible when planning a trip. However, there are ways to deal with it. But, the main question: What happens if you miss your flight on purpose? 

It's a major airline in the United States & largest airline per fleet size. However, it flies around 6,800 flights per day on international & domestic routes. On the other side, you can book the cheapest flights & get multiple services. 

Moreover, the airline offers you last-minute deals & vacation packages. 

What do you need to do if you miss your flight with American Airlines?

There are some points below that can help you in this kind of situation:

1. The passengers can rebook their same flight 15 minutes before & after the scheduled departure. 
2. However, if you make the rebooking, it'll be considered a no-show policy. 
3. On the other hand, you can get the same new flight if the passengers reach on time. 
4. Moreover, if you reach late upto 2 hrs late, you'll get a new flight without any extra charges. 
5. Although you can check in to the flight 45 minutes before departure, American Airlines will get you a new flight if you arrive late. 
6. Your missed flight charge will depend on the fare type, and the time you apply to rebook a flight. On the other hand, refer to the American Airlines Missed Flight change policy for more details. 

Explain the late arrival standby policy by the airlines.

This policy says that travellers who arrive within 2 hrs of their scheduled departure fall under this policy. However, you can board the next flight without any increased fare or change fee. 

Now, it's important to know about the situation when it's applicable:

1. You fall under this policy if you miss the flights due to incomplete documentation.
2. However, you get late for the flight check-in but reach the airport within 2 hrs of the departure. 
3. The other reason for being under the late arrival policy is if you carry a mobile boarding pass but reach the wrong airport.
4. Apart from this, you have yet to receive or apply for an ESTA, also known as the Electronic system for travel Authorization.