<ul><li>KAYAK's research reveals best days to travel for cheaper flights and avoid crowds during the festive season.</li><li>Booking flights on less popular days can lead to potential savings of up to 28%.</li><li>The 31st of December is identified as the cheapest day to fly for long-haul flights outside Europe.</li><li>It is recommended to avoid traveling on 20th December, which is predicted to be the busiest day with higher fares.</li></ul>

KAYAK’s Top Tips for Cheaper Flights This Festive Season

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