Holiday season flights are on sale from Southwest. Fares start at $39 one-way or $78 round-trip, and destinations include Chicago, Las Vegas, and Denver.

Southwest’s sale fares were the best available for every route I checked, though the Chicago/Nashville, Dallas/San Antonio, and Los Angeles/Las Vegas fares were matched by other airlines. The lowest fares on some popular travel dates for certain routes are already sold out, but if you’re flexible with your dates, you will probably be able to snag a good deal.

It’s rare for an airline to discount its holiday flights, particularly on peak travel days, so you should consider taking advantage of these fares if you haven’t yet booked a flight.

The deal

Travel is valid from December 20 through January 6, 2008.

The sample fares are available either one-way or round-trip.

Book by October 29, 11:59 PM CT.

Best sample round-trip fares, not including additional taxes and fees, are:$78 between Pittsburgh, PA and Baltimore, MD on Southwest$98 between San Antonio, TX and Dallas, TX on Southwest$98 between Las Vegas, NV and Los Angeles, CA on Southwest$98 between Nashville, TN and Chicago, IL on Southwest$118 between Chicago, IL and Islip, NY on Southwest$158 between Denver, CO and Oakland, CA on Southwest$198 between Columbus, OH and Providence, RI on SouthwestAll prices, dates, and booking details listed here were valid at the time of publication. Some information may have changed since that time.

Find airfares

You can use our price-comparison tool to check for the lowest airfares from multiple travel providers, or go directly to Southwest’s website.

Seats are limited and may not be available on all flights or dates. Be flexible with your travel dates to find the lowest fares. Blackout dates and additional restrictions may apply.

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