This is a great offer from Groupon! Pay $39 and receive a $100 promo code for use on a round-trip Virgin America flight between San Francisco (SFO) and Chicago (ORD), or Los Angeles (LAX) and Chicago (ORD). Tickets must be purchased at least three days in advance of outbound travel, prior to 11:59 pm CST on February 29, 2012. Travel must occur between February 3 and March 31, 2012, with blackout dates on February 17 and 20, 2012. In addition, free in-flight WiFi from Gogo (one-way) is included (a $12.95 value).
This offer is only valid for non-refundable Main Cabin fare classes in S, L, M, U, E, H, B, or V. Limit one per person. The promo code may only be used once and is valid for a single guest round-trip itinerary. Full terms and conditions.
EDIT: Wow, that went fast. This deal is already sold out on Groupon!