As has been the case since early winter, airlines are continuing to pump out flash fare sales, meaning promotions that you have to grab fairly quickly. It's an indication of the pressing need all U.S. carriers have to raise revenue in a very tough time.
Southwest has a major sale starting today, for travel through Oct. 29, with a 14-day advance purchase. Tickets need to be bought by 11:59 p.m. Pacific time on Thursday.
Some samples from a long list: Washington-Tampa ($81); Tucson-New York ($180); Austin-Boston ($151); Boston-Los Angeles ($159).
The prices are for one-way travel but, of course, Southwest alone among the big carriers is very happy to sell you a one-way ticket even at a fare-sale price, without insisting that you buy a round-trip.