On San Francisco to Tulum business class, the hard product varies more than the short flight time might suggest. American's Flagship Business gives you a lie-flat suite in 1-2-1 configuration, Flagship Lounge access at SFO, and Casper bedding — a strong option if you're connecting through Dallas or Miami. Delta One Suite is the most private cabin in the mix, with a closing door on every seat in 1-2-1 layout, plus Tumi amenity kits; Delta typically routes through its hub network with a stop. United Polaris matches the lie-flat pod standard with 1-2-1 seating, Polaris lounge access, and Saks Fifth Avenue bedding, usually connecting through Houston or Denver. JetBlue Mint stands apart with a 1-1 configuration — meaning every seat has direct aisle access — and sliding suite doors on select routes, plus a small-plates dining service that skews more restaurant than airline catering. For a flight this short, the door-closing suites (Delta, JetBlue) matter less for sleep and more for privacy if you're working or want distance from a chatty seatmate.