Japanese carrier All Nippon Airways announced this morning that it will be the first airline ever to offer beer on tap during flights. The kegs are going to be installed and running on domestic flights -- mostly to and from the island chain of Okinawa -- from July 20.

At ¥800-1,000, the prices are comprable to what you'd expect in most Tokyo bars. According to Japan Probe, the service has previously been problematic to install due to air pressure issues. Nevertheless, only 20 cups worth will be available on all but the Tokyo-Okinawa service, so get your orders in shortly after take-off!