Fly from Chicago to Los Angeles for $159 round-trip, including all taxes, with Virgin America. We found this fare by using the 30% off promo offered in Virgin America's current Soho Invasion contest. How do you get the promo code? Enter your email address along with five friends to receive the full 30% off promo code, or only enter your own email for a 15% off promo code. In addition to the discount, you're automatically registered to win a weekend getaway to New York, so there's that too!