All aboard Brightline!

Discount tickets to ride the rapid train are almost sold out.

People looking to sample Brightline’s higher-speed passenger trains at deep discount prices this weekend, may be out of luck soon. Tickets are going fast. Brightline officials say the $3 and $5 fares offered only for Saturday and Sunday rides are almost sold out for every train between West Palm Beach, Fort Lauderdale and Miami.

The discount tickets were priced to celebrate the May 19 start of regular passenger service to MiamiCentral station at 600 NW First Ave.

The discount prices are good system-wide, but the seating is assigned. It you miss your train your ticket won’t be good on the next train.

Parking is free at all three Brightline train station garages and there will be two days of festivities at the MiamiCentral station this weekend but only for those with Brightline train tickets. They can be purchased online at GoBrightline.com and at the train stations. Brightline does not take cash payments.

If you use Lyft ride-sharing to each station, you receive a $5 credit toward the train ride. Type in the promotional code: BRIGHTLINE305.

There are seven departures from Miami about every two hours beginning at 9:10 a.m. Saturday and Sunday.

Fort Lauderdale has eight departures to Miami on Saturday and seven on Sunday, all beginning at 7:42 a.m.

Likewise, Fort Lauderdale has eight Saturday and seven

Sunday departures to West Palm Beach beginning at 9:45 a.m.

Brightline trains depart West Palm Beach eight times Saturday and seven times Sunday every two hours beginning at 7 a.m.

The travel time between stations is 30 to 40 minutes.

As of Thursday, almost all this weekend’s discount rides were sold out except for the first and last few trains of each day.

Starting Monday, introductory fares will be:

$10 in the Smart coach, $15 to $20 in the Select coach for a one-way trip between each station (Miami, Fort Lauderdale and West Palm Beach).

$15 in the Smart coach, and $25 in the Select coach if going the distance, oneway, between Miami and West Palm Beach.

Children under 12 get a 50 percent discount.

Seniors 65 or older, active military, veterans, and members of the American Automobile Association and National Association of Railroad Passengers get 10 percent off.

Uniformed law enforcement officers will get free rides.

Brightline officials gave no date for the start of regular fares other than to say they would fluctuate during peak travel times daily.