The Spirit Airlines IAH Terminal is located in Terminal A at George Bush Intercontinental Airport. It handles both departures and arrivals, mainly through the A South concourse.
https://www.airpolicyguide.com/spirit-airlines/spirit-airlines-terminal-iah-airport/

JFK Terminal 8 stands as one of the premier terminals at John F. Kennedy International Airport, serving as a hub for American Airlines and British Airways operations.
https://www.terminalhelpdesk.com/blog/jfk-terminal-8/

Delta Airlines First Class offers a premium travel experience designed for comfort and convenience. Passengers enjoy spacious seating with extra legroom and enhanced recline, ensuring a relaxed journey. Dedicated flight attendants provide personalized service, offering complimentary meals, snacks, and beverages, including Starbucks coffee and premium alcohol selections. Travelers benefit from Sky Priority® perks, including expedited check-in, security screening, and baggage handling. In-flight entertainment includes an extensive selection of movies, TV shows, and music, accessible via seatback screens. Whether for business or leisure, Delta Airlines First Class ensures a seamless and luxurious flight experience, making every journey enjoyable and stress-free.

https://www.terminalassistance.com/blog/delta-airlines-first-class-price/

https://www.terminalassistance.com/blog/qatar-cancellation-policy/

https://www.terminalassistance.com/blog/emirates-cancellation-policy/

https://www.terminalnearme.com/blog/emirates-first-class/