The monthly flight deal tracker analyzes millions of flight searches on KAYAK to identify the lowest average round-trip economy fares from major US airports for travel in the upcoming month. The data below updates monthly and highlights where travelers are seeing the strongest airfare value right now. By the numbers. Cheapest domestic route Atlanta to 🇺🇸 Raleigh, NC: $61. Cheapest international route Los Angeles to 🇨🇦 Vancouver: $174. Largest month-over-month price drop Cincinnati to 🇺🇸 Punta Gorda, FL: down 50%. Average airfares in May 2026, round-trip, economy class. Pick your region. Cheap flights from Northeastern US. This month’s stand out deal: from Boston to 🇧🇧 Bridgetown, Barbados, $358, down 34% compared to last month. Check the precise flight prices for your destination here . Cheap flight from Midwestern US. This month’s stand out deal: from Cincinnati to 🇺🇸 Punta Gorda, FL, $168, down 50% compared to last month. Check the precise flight prices for your destination here .…