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What days are Southwest flights the cheapest?

Watch for sales (They happen frequently) Southwest has an unofficial but predictable fare sale calendar that drops the prices on some routes nearly every Tuesday. While it's not a published policy, these generally run from Tuesday through Thursday and offer one-way prices on select routes as low as $39.



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Watch for sales (They happen frequently) Southwest has an unofficial but predictable fare sale calendar that drops the prices on some routes nearly every Tuesday. While it's not a published policy, these generally run from Tuesday through Thursday and offer one-way prices on select routes as low as $39.

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Fly between Atlanta and Nashville, Austin and New Orleans, Chicago and Cincinnati, Los Angeles and Las Vegas, and more starting at just $59 each way.

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Southwest has an unofficial but predictable fare sale calendar that drops the prices on some routes nearly every Tuesday. While it's not a published policy, these generally run from Tuesday through Thursday and offer one-way prices on select routes as low as $39.

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The reality is that flight prices change constantly and at all hours of the day, adjusting to real-time demand. Airlines don't restock on the same day every week like a grocery store, so you won't find deals by waiting until Tuesdays to book.

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Timing plays an important part. Specifically, plane tickets usually don't get cheaper closer to the departure date. Instead, flights tend to be the most inexpensive when you book between four months and three weeks before your departure date.

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Early to midweek tends to be cheaper on off-peak days, and as a rule of thumb, the busier the weekend, the more the flight is going to cost. “I've found that it is generally cheaper to fly on Tuesdays, Wednesdays and Saturdays,” adds Dengler.

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Travelers will find there's a window of time up till Tuesday at 3 p.m. Eastern time when Southwest makes an effort to match competitor sale prices, with the majority of sales ending by Thursday night. You might just be pleasantly surprised with some of the last-minute deals you come across within this timeframe.

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If you'd rather have money in your pocket than landing the seat of your choice, it's probably worth it to skip EarlyBird Check-In. Budget-minded group travelers. While $15 to $25 may not seem like much to pay for early boarding, it can quickly add up if you're traveling with a group.

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In the early days of online flight booking, airlines used to manually post their updated prices at a certain time of day each week. This led to the rise of the myth that the cheapest time to book a flight was on Tuesday (and specifically at 3am, many claimed).

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More specifically, Tuesday at about 15:00 eastern time. This is because many airlines release weekly sales early on Tuesday, which creates competition between airlines to match prices.

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Tuesday Around Midnight is the Cheapest Time to Book
In general, flights were slightly cheaper at midnight earlier in the week (Monday through Wednesday). However, this is only applicable to about 1.6% of U.S. markets, meaning that it's not likely you'll find the same savings on your specific route.

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The airlines update fare information 3 times a day. They do not necessarily change airfare prices all three times, but they certainly can, and often do.

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Generally, Tuesday, Wednesday and Saturday are the cheapest days to fly, while Fridays and Sundays are pricier, according to travel deal site FareCompare. Leisure travelers tend to fly on the weekends, either starting their vacations on Friday or taking a long weekend Friday to Sunday.

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Senior Fares apply only to those in the traveling party who are age 65 or over. Southwest Airlines has other discounted fares for those not meeting the above age requirements. Some restrictions and seating limitations may apply.

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