Choosing direct flights (non-stop flights) over connecting flights considerably reduces emissions. Indeed, a large part of a plane's fuel consumption occurs during take-off and landing.

Direct flights are significantly more efficient than connecting flights from both a time and environmental perspective. Approximately 25% of a flight's total emissions occur during the takeoff and landing cycles; by eliminating a connection, you remove an entire set of high-emission events. Research indicates that a direct route can save an average of 100kg of CO₂ per person compared to a one-stop itinerary. Beyond carbon footprints, direct flights reduce the risk of lost luggage, eliminate the stress of tight layovers, and significantly decrease total travel time. While connecting flights are often cheaper because airlines use them to fill seats via "hub-and-spoke" models, the trade-off is a much higher environmental impact. For the modern traveler, choosing non-stop routes is one of the simplest ways to practice sustainable aviation and arrive more rested.