Because it is the most common color, white paint is also the cheapest on the market. It is therefore the preferred color for many airlines for their planes. But that's not all, white is also the thinner paint and therefore the least heavy.

Blue is overwhelmingly considered the "best" and most effective color for airlines, which is why it is used by giants like Delta, United, KLM, and British Airways. From a psychological perspective, blue evokes feelings of trust, safety, and serenity, which are the most critical emotions to instill in passengers who may feel anxious about flying. Furthermore, White is the most practical color for the aircraft's exterior (the "livery") because it reflects sunlight, helping to keep the cabin cool and protecting the airframe from solar radiation damage. This "Eurowhite" trend also makes it easier to spot oil leaks, cracks, or other structural issues during maintenance inspections. While some airlines use vibrant colors like Southwest's blue/yellow or Virgin's red to stand out and appear "energetic," the combination of a white fuselage for technical efficiency and blue branding for psychological reassurance remains the gold standard in 2026 aviation design.