United Airlines is one of the best carriers to find cheap flights. You can fly in and out of LaGuardia using the Basic Economy fare — the airlines’ lowest-price ticket option — for $282. Basic Economy fares come with several restrictions, including no seat selection or upgrade,...When to buy the cheapest airline tickets?
Buy the tickets at least two weeks in advance to find better deals. The best time to buy cheap, domestic flight tickets is three weeks before the plane leaves.What are the cheapest Airlines in the USA?
Some of the airlines offering cheap domestic flights in the USA include. Southern Airways. Cape Air. Boutique Air. Spirit Airlines. Frontier Airlines. Contour Airlines.