Once a novelty, the private business class suite with a door you can actually close is now the benchmark for a premium long-haul flight. JetBlue pioneered the idea in 2014 on a handful of Mint seats, but Qatar Airways was the first to put doors at every business class seat with its QSuite in 2017, and Delta followed months later with Delta One Suites. Fast forward to 2026 and seven airlines stand out for sheer volume of door-equipped aircraft.
Qatar Airways tops the list with 119 aircraft. Beyond the 90 planes flying QSuites (including all of its A350-1000s and most 777s), its 29 Boeing 787-9s carry the Elevate Ascent suite — also fully enclosed. QSuites Next Gen is expected around 2027, likely debuting on the A350-1000 after 777X delays.
British Airways comes second with 97 aircraft fitted with Club Suites, the Collins Elevation reverse herringbone seat with a sliding door. You'll find them on every A350-1000, all Heathrow-based 777s, most 787s, and soon the A380s, which are finally being refurbished. Gatwick 777s still fly the tired old Club World seats, so route choice matters.
Delta has 81 aircraft with Delta One Suites — A350-900s and A330-900neo fleet-wide — well ahead of American and United, which only joined the closed-door club in 2024 and 2026 respectively. Delta is also retrofitting its older A330s and will bring the newer VantageNOVA seat to its upcoming A350-1000s.
The two European rivals are close behind. Air France counts 45 aircraft: 23 A350-900s with the Stelia Opera WB seat and 22 retrofitted 777-300ERs with the Safran Versa, 18 of which also carry the new La Premiere first class. KLM has 32 — its 777s got doors via the Jamco Venture seat, and its incoming A350s match Air France's product. Note the catch on KLM's 787-10s: same seat family, no doors.
Rounding out the list are China Eastern (28 aircraft — A350-900s and 787-9s with Thompson VantageXL suites, doors at every seat) and Lufthansa (also 28 with Allegris, though only the front-row Suite seats have doors; the retrofit is expanding across its A350s, 787-9s and eventually the 747-8 fleet).
Why does this matter for travellers? If you're redeeming miles or paying business class fares on a long overnight flight, a sliding door means real privacy for sleep and work — a bigger difference than most seat pitch comparisons suggest. When booking, check the aircraft type, not just the airline: British Airways' A380s, KLM's 787-10s and most of Lufthansa's Allegris cabins still lack doors on many routes. Flights on the A350-1000, 787-9 or retrofitted 777s are your safest bets for a fully enclosed suite in 2026.
