Antagonists. Antagonists bind to the same receptors as full and partial agonists but do not cause activity at the receptor. Moreover, antagonists block agonists and partial agonists from binding and therefore prevent receptor activation altogether.
JetBlue operates 54 100-seat Embraer 190s, supplementing 126 150-seat that are used on longer-haul routes, according to the Aviation Week Intelligence Network fleets database. Barger, who stretched out deliveries of the after becoming CEO in 2007, stopped short of saying he regretted ordering the aircraft.
JetBlue now charges $75 to have an existing ticket re-issued at a lower available fare. So if the price of your JetBlue flight drops in excess of $75, you can obtain a credit for the full difference in price that's good on a future JetBlue flight. To obtain your travel credit, you can call 1-800-JETBLUE (538-2583) or use the JetBlue website www.jetblue.com.