More New Jersey Transit rail riders can now avoid lining up at ticket machines.

Flickr User Phillip Capper

The railroad is expanding its MyTix mobile application to the Raritan Valley and North Jersey Coast lines.

Passengers can use their smartphones to purchase and display one-way tickets, weekly and monthly passes, as well as several other specially-priced ticket options.

The expansion comes in time for passengers to use the app to travel to and from Newark Liberty International Airport during the busy holiday season.

Customers must download the free application at the App Store for iOS phones and the Google Play Store for Android devices.

MyTix began as a pilot program on the Pascack Valley Line in April 2013. It's now available on the Main/Bergen County, Port Jervis, Montclair-Boonton and Morris and Essex lines.

According to the railroad, the complete list of mobile app ticket options includes:

One-Way Tickets - One continuous trip between the stations on the ticket. One-way tickets are valid until activated and are non-refundable. Once activated, one-way tickets will expire after two hours and 45 minutes.

Round Trip Tickets -Two one-way tickets between selected stations (no discount). Valid as shown above in either direction of travel.

Weekly Passes - Unlimited trips between two rail stations from 12:01 a.m. Saturday through 6:00 a.m. on the following Saturday. On sale beginning Thursday and continuing through Tuesday.

Monthly Passes - Unlimited trips between two rail stations during a calendar month (valid until noon of the first business day of the following month). They can be purchased beginning the 19th of the previous month, through the 10th day of the month for which the pass is valid.

Children's Fares - Children (ages 5-11) save at least 50 percent at all times. In addition, up to three children four and under can ride free with a passenger paying any valid fare.

Family Supersaver Fares - On weekends and holidays, up to two kids (ages 5-11) can ride free with a passenger paying any valid fare. In effect from 7 p.m. Friday (or the day before a holiday) until 6 a.m. Monday (or the day after a holiday).

Senior Citizen and Customers with Disabilities Fares - Senior Citizens (62 and older) and customers with disabilities can travel on NJ TRANSIT trains at a reduced fare of half the regular one-way fare or less at all times.

(Copyright 2013 by The Associated Press.  All Rights Reserved.)