JetBlue Airlines
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JetBlue is switching from Coca-Cola to Pepsi products onboard flights.

Beginning June 3, JetBlue passengers will be able to choose from Pepsi, Diet Pepsi, Sierra Mist, Sierra Mist Zero Sugar, Bubbly Lime Sparkling Water, Canada Dry Seltzer, Canada Dry Tonic and Canada Dry Ginger Ale when the drinks cart goes by.

Passengers are likely to notice. When United switched from Coke to Pepsi products in 2002, “People were really upset,” a flight attendant told The Points Guy. Everyone knows that Pepsi versus Coke is a rivalry as old as time (or at least since the beginning of the 20th century) — and many people have a firm opinion on the matter.

The change hasn't even gone into effect, and passengers are already complaining — but the airline has not directly addressed #PepsiGate2019.

“JetBlue is always looking for ways to refresh our onboard experience,” an airline spokesperson said in a statement to Travel + Leisure. “Starting June 3, we will offer a new selection of complimentary beverages on all JetBlue flights. We will share additional details in the coming weeks.”

Service changes will also include a switch to something more sustainable. Instead of handing out single-use bottles of water to passengers, flight attendants will pour out cups of water from 1.5-liter bottles.

JetBlue will become one of the few airlines in the world to stock Pepsi instead of Coca-Cola products in June. Of the world’s top 50 airlines, less than 10 percent served predominantly Pepsi products.