Hi,
I have gone through your requirements and I can create samples of autocomplete using typeahead as per your needs. For flight info, i would suggest "Prefetch" fetching method as it will be efficient in your scenario. I would create samples in all methods from which you choose.
Templates can be created for how the suggestions can be shown, which can be easily modified in future.
I have already completed a project using typeahead and so I am aware of all options available.
https://www.freelancer.in/projects/Javascript-jQuery-Prototype/Improve-existing-JQuery-typeahead-plugin.html
Pls PM me to discuss further details.
I have 3+ years of front-end devlopment using HTML, CSS, JS, jQuery, Bootstrap and AngualarJS. I am proficient programmer in asp.net and php also. I can assure you that I will provide quality work in given time period without any issues. The final code will be delivered with comments and documentation.
Looking forward to work with you,
Kasi