Yes, it’s still summer, but it’s time to start strategizing. What to know about when and how to book your airline tickets, and avoid flight disruptions. By Elaine Glusac Elaine Glusac is the Frugal ...

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Mistake fares are rare, but if you can find one, and are flexible with your travel dates and destinations, you may be able to score deals on airfare up to 90% off. A $171 flight to Singapore. A $244 ...