John
If you download ForeFlight, prior to leaving home, enter your destination and alternate airports in ForeFlight. Then click on approaches, DP's, Stars, or whatever else you might need at destination. ForeFlight automatically saves the approaches, DP's etc., that you have opened, and you can access them without wifi, or phone reception, as they are now saved in the memory of the IPad. Also, you will get an automatic reminder to udate any saved procedures each month.
Bill