orbitz.js

var args = require('system').args;
var page = require('webpage').create();
var loc = encodeURIComponent(args[1]);
var pickup_date = encodeURIComponent(args[2]);
var pickup_time = encodeURIComponent(args[3]);
var return_date = encodeURIComponent(args[4]);
var return_time = encodeURIComponent(args[5]);
var url = "http://www.orbitz.com/shop/home?type=car&car.pickupType=AIRPORT&car.dropoffType=SAME&car.airport.orig.key=" + args[1] + "&car.airport.startDate=" + pickup_date + "&car.airport.pickupTime=" + pickup_time + "&car.airport.endDate=" + return_date + "&car.airport.dropoffTime=" + return_time + "&car.airport.airConditioning=U&car.airport.transmissionType=U&search=Search+Cars"

page.open(url, function() {
  var results = page.evaluate(function() {
    return document.querySelector("table").outerHTML;
  });
  console.log(results);
  phantom.exit();
});

orbitz.rb

require 'nokogiri'
require 'pp'

class Shop

  attr_accessor :location, :pickup_date, :pickup_time, :return_date, :return_time
  attr_reader :run_time, :results

  def initialize(attributes={})
    attributes.each {|k,v| self.send("#{k}=",v)}
  end

  def new
  end

  def run
    @run_time = Time.now
    @doc = Nokogiri::HTML(html)
    @companies = @doc.css('.columnHeaderSeparator .headerLink').map {|i| i.text}.uniq
    @cartypes = @doc.css('.rowHeader .headerLink').map {|i| i.text}.uniq
    @rates = @doc.css('.unitPrice').map {|i| i.text[/\$(\d+)/,1]}
    @ratetypes = @doc.css('.unitPrice').map {|i| i.text[/\/(\w+)/,1]}
    @totals = @doc.css('.totalPrice').map {|i| i.text[/\$(\d+)/,1]}
    construct_results
  end

  private

  def html
    `phantomjs orbitz.js #{location} #{pickup_date} #{pickup_time} #{return_date} #{return_time}`
  end

  def construct_results
    @results = {}
    @companies.each {|c| results[c] = {}}
    idx = 0
    @cartypes.each do |car|
      @companies.each do |company|
        @results[company][car] = {
          rate: @rates[idx],
          ratetype: @ratetypes[idx],
          totalprice: @totals[idx]
        }
        idx += 1
      end
    end
  end
end

shop_params = {
  location: 'bos',
  pickup_date: '4/15/14',
  pickup_time: '11AM',
  return_date: '4/20/14',
  return_time: '11AM'
}
shop = Shop.new(shop_params)
shop.run
pp shop.results