There is no nonstop path linking San Diego and the Baltic coast, which means the real decision on this route isn't whether to fly business class from San Diego to Gdansk, but where to connect. In practice, that means routing through Delta's Amsterdam or Paris gateways, United's Newark, Chicago, or Munich hubs, or LOT Polish Airlines' Warsaw operation, with a final short hop into Gdansk on a regional jet. Delta and United both position their transatlantic widebodies with lie-flat business class seats — Delta One suites on the A330/A350 out of Los Angeles or Detroit, or United's Polaris seats out of San Francisco or Newark — as the premium backbone of this journey, while LOT typically operates narrowbody Business Class (Embraer or 737) on the Warsaw-Gdansk leg, which is comfortable but modest compared to the long-haul cabins.
My preferred build, after flying this corridor repeatedly, is United through Chicago or San Francisco into Munich or Newark, connecting onward with Lufthansa or LOT into Gdansk — it typically shaves an hour or two versus Delta's Amsterdam routing, and San Diego's UA gates make same-terminal connections painless on the outbound. Delta via LAX and Amsterdam is the more scenic and often smoother option when KLM's Gdansk frequencies align well, especially in shoulder season when Baltic weather is kinder. An insider tip few travelers know: LOT occasionally reroutes Warsaw-Gdansk business passengers onto slightly larger aircraft during Tri-City trade fair weeks in Gdansk, so booking that final segment early can land you an unexpectedly roomier domestic-style cabin.
January through March and October into November remain the sweet spot for business class fares on this itinerary, as both leisure demand and Polish business travel dip between the summer Baltic season and the December holidays. Given how volatile transatlantic business fares can be week to week, it's worth setting continuous fare alerts on this specific San Diego–Gdansk pairing rather than checking manually, since award and discounted business inventory on these connections can appear and vanish within days.
