Few routes expose the geometry problem of transpacific-meets-transatlantic travel quite like Honolulu to Leeds. There is no such thing as a straightforward business class from Honolulu to Leeds itinerary — Leeds Bradford Airport has no widebody service, so every routing funnels through a major US or European gateway before a short connecting hop. The factual bottom line: American, Delta, and United all offer viable one-stop options via their mainland hubs, with a mandatory connection onward to Manchester or London before completing the journey by rail or short domestic flight into Leeds, since LBA itself handles no long-haul metal.
Having routed this trip several times, my preference leans toward United through San Francisco or Chicago, where their Polaris business class — lie-flat seats with proper direct aisle access on the 777 and 787 fleets — makes the first, longest leg tolerable before an eastbound transatlantic segment into London Heathrow or Newark. Delta's option through Los Angeles or Atlanta, using their Delta One suites on the A350 or 767, is another strong contender, particularly appealing if you can snag a Delta One Suite with the sliding door on the transatlantic leg. American routes through Dallas-Fort Worth or Los Angeles feed into their Flagship Business seats on 777-300ERs, though their Heathrow arrivals can mean a longer taxi-and-transfer scramble to Leeds. My insider tip: build in a minimum three-hour buffer at your European gateway, then book the London–Leeds train from King's Cross rather than a connecting puddle-jumper — it's more reliable during winter fog delays that plague northern England airports.
January through March and October through November consistently offer the softest business class fares on this corridor, as Hawaii-UK leisure demand dips outside summer and holiday peaks. Given the multi-carrier, multi-leg complexity here, setting up fare alerts across all three airlines is the smartest way to catch a favorable pricing window before it closes.