It's hard to knock Southwest when you consider how they have impacted the cost of domestic flights. When SWA comes to your town, suddenly American and Delta are dropping their fares like crazy. Although I wouldn't call the "cattle call" free for all of grabbing any open seat a perfect experience for family travel, it's hard to beat it in price. Their Rapid Rewards program is also just as great-- my husband and I have each earned several free flights.
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