Seattle to San Antonio, TX from $126RT!
Spring is a great time in the South and these are some amazing fares between Seattle and San Antonio, Texas. American and United are competing and that means frugal fares for passengers. Both of these are Basic Economy fares but I tend to lean toward American in this circumstance. AA will give a free carry-on sized luggage on. United charges for carry on. Use ITA Matrix Software to locate the best dates. Book through Kayak.com for the lowest fares!