Cheapest Days to Fly and Best Time to Buy Airline Tickets Shop on Tuesday. Best day to shop: The best time to book a U.S. ... Don't Shop too Early or too Late. Buy too early and you could pay too much. ... Always Compare Airfare. The golden rule of shopping: Always compare airfares . ... Cheapest Days to Fly. Save even more by knowing the cheapest days to fly. ... Fly the Cheapest Route. ... Book Group Travel One Ticket at a Time. ...What airlines are offering cheap flights?
Two upstart low-cost airlines in the U.S. are offering tickets at rock-bottom prices: Avelo Airlines and Breeze Airways. Launching in April with a base in Burbank, California, budget carrier Avelo's introductory fares were initially as low as $19 one-way.