In their annual review of in-flight meals, researchers found that of all airlines in the United States, Hawaiian Airlines has the most unhealthy in-flight meals, according to the study published by Charles Platkin the director of the Hunter College NYC Food Policy Center and editor of DietDetective.com.

According to the New York Post, Hawaiian Airline’s meals clocked in at an average of 971 calories, or 4063 kilojoules, Diet Detective nutritionists estimated. (The airline declined to provide their own nutritional information, which docked them a few points on the study’s rating system.)

That’s roughly the equivalent of eating two Big Macs in a single meal.

The healthiest meal award was a tie: Delta and Virgin America both got four out of five stars on Platkin’s scale, which accounted for factors such as calories and accessibility of nutritional information.

Delta’s average calorie count per meal — snacks included — was 480, while Virgin America’s was 340. Air Canada and JetBlue tied for second, followed by Alaska Airlines, United Airlines, American Airlines and several others.

The bulk of unhealthy calories you ate in the air came from the snacks served on flights, Platkin said.

“Even if you ate before you left home, you are still going to get hungry,” he said in the study, suggesting bringing healthy snacks, such as fruit, from home.

“We often underestimate the amount of time a trip can take. A two-hour flight could mean four or five hours of travel.”

This article originally appeared on the New York Post and was reproduced with permission.