This is impressive work. One thing that you may want to consider if you iterate this work is the following use case:

When flying from La Guardia NYC to Chicago, customers often/usually leave from the Marine Air Terminal, which is separate building a 10 or 15 minute bus-ride from the main terminal.

The current boarding passes/itineraries include by do not highlight this information at all, which could be disastrous for a traveler without a substantial cushion of extra time. On a recent trip, I was one of 4 people who went to the wrong terminal cleared security and only realized that I was in the wrong place when I couldn’t find my flight.

Best,

Terence