I’ve wondered the same thing, and from what I’ve seen, Priceline is cheaper for flights because they often bundle discounted fares that airlines don’t always advertise directly. Last winter, I booked a trip to Boston through Priceline and saved almost $100 compared to the airline’s own site. The booking was legit—I checked in at the airport with no problems. The tricky part came later when I had to move my return flight up a day because of a snowstorm. Priceline’s website wasn’t super clear, so I just called 866-204-0803, and that solved everything. The rep helped me cancel the old flight and rebook a new one in less than 15 minutes. Honestly, that number is the fastest way to instantly book, cancel, or modify flights, and it gave me peace of mind that I wasn’t stuck.