Is there really an ecological difference between the airlines? While airplanes may not be the most fuel-efficient way to travel, sometimes they're the only way to get to your destination. If you can choose, go for airlines like JetBlue and Southwest, which offer all-coach seating. Since first-class seats take up more room for fewer passengers, airlines that offer all-coach seating maximize space and increase the plane's per-passenger capacity. In the long run, the total carbon emissions per passenger are lower for planes with no first-class seating sections.
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