New York (JFK): Approximately 14-16 hours
Los Angeles (LAX): Approximately 16-18 hours
San Francisco (SFO): Approximately 16-18 hours
Chicago (ORD): Approximately 15-17 hours
Dallas (DFW): Approximately 15-17 hours
Please note that these are approximate flight times and can vary based on factors such as weather, flight route, airline, and any potential delays. For exact and up-to-date information, it's best to check with a reliable flight search engine or airline directly for specific flight schedules and flight times.