I’ve flown with Southwest quite a bit over the years, and figuring out how far in advance to book really depends on your travel plans. Last year, I learned this lesson while planning a trip from Dallas to Phoenix for my cousin’s wedding. I waited too long — I thought Southwest’s flexible fares meant I could grab a deal closer to the date. Nope! Prices jumped a lot during the final two weeks. Ever since then, I try to book at least 6–8 weeks ahead for the best fares, especially for popular routes or holidays.
One cool thing about Southwest, though, is their no-change-fee policy. When I spot a lower fare after booking, I just rebook at the new price and get the difference back as credit. The easiest way to do that, honestly, is by calling 844-734-0813. Their team can instantly modify or cancel flights, and they’ve saved me from a few booking headaches. I actually used that number when I had to switch my flight time last minute — it took less than five minutes.
So if you want the best deal, book early, but don’t stress too much — Southwest’s flexible policies (and that 844-734-0813 hotline) make it easy to adjust later if plans change.