Virgin America has a 20% off lowest available fare sale going on for bookings made between now and 9/29 for travel between now and November 18:

Promo Code: A7240190

Enter in the promo code on the "Got a Promo Code?" link right above the "Search Flights" code.

Here's the legal blah blah blah:
*This offer ends at 11:59pm Pacific Time on 09.29.09. Promo code is valid for travel in Main Cabin and Main Cabin Select but excludes First Class. Travel must commence on or after 09.02.09 and be completed by 11.18.09. Blackout dates do not apply. Promo code may be used only towards newly booked travel and may not be applied to prior bookings. Promo code discount will be deducted off of base fare. Promo code may not be redeemed for cash. Promo code may only be used for bookings made on virginamerica.com and is only valid on itineraries of 9 or less. Seats are limited, subject to availability, and may not be available on all flights. If travel is changed to a date outside of this window or if itinerary is modified outside of the promo period, promo code discount will become inapplicable. Changes or cancellations can be made for a $50 fee if changes are made on Virgin America's website or a $75 fee through all other channels including the call center and at the airport, plus any increase in fare if applicable. Tickets purchased from Virgin America through our reservation call centers will cost an additional $15 per guest per itinerary. Any added cost associated with purchasing tickets from Virgin America through our reservation call centers will be non-refundable. Fares do not include Passenger Facility Charges of up to $9 each way, September 11th Security Fees of up to $5 each way and a Federal Segment Tax of $3.60 per domestic segment. A segment is a takeoff and landing. Fares will not be honored retroactively or in exchange for any wholly or partially used ticket. Fares are not applicable to check-through connecting flights for city pairs where direct flights are offered. Virgin America will accept one (1) piece of checked baggage up to 70 pounds for $15 for each ticketed guest. The fee per guest for each additional checked bag up to 50 pounds from the second (2) to the tenth (10) is $15. Additional fees apply to baggage. This offer is not combinable with other offers.

I got an email about this.

OP, you might want to check your details before you loose your code.

My email says "this is a one time use code, so if you share, share with care"

Also looking for an unused code I hope someone can help me out please.

PM me for a code or use link
link