Aer Lingus begins non-stop service from San Francisco to Dublin, Ireland this weekend. The Irish Airline is celebrating with a sale of $199 (each way) tickets on Tuesday and Wednesday's.The service will launch with four round-trip flights per week and introductory fares as low as $288 each way. Those one-way economy class fares drop to $199 each way during a special online sale – from 12:01 a.m. Tuesday, October 30 until 3:59 p.m. on Wednesday, October 31 -- for weekday flights (Monday and Wednesday) in January and February 2008. Friday and Sunday flights are $20 more each way. Tickets must be purchased online at http://www.aerlingus.com/ during the sale period.