Gdansk remains one of the more delightfully complicated business class puzzles out of the Pacific Northwest, and after routing through this corridor more times than I can count, I've settled on a firm conclusion: there is no nonstop option, so business class from Seattle to Gdansk always means a connection, typically through Amsterdam, Frankfurt, Munich, or Warsaw. Delta partners with LOT Polish Airlines and Lufthansa within the joint transatlantic venture, which means your best routing choices are Delta metal across the Atlantic paired with LOT's regional jets into GDN, or a full Lufthansa itinerary via Frankfurt or Munich. Total journey time hovers around 12-plus hours in the air, but expect 15-17 hours door to door once you factor the connection.
My preferred build is Delta's A330-900neo or A350 in Delta One suites out of Seattle to Amsterdam or Paris, since Delta's transatlantic hard product with the sliding door remains one of the more comfortable long-haul beds in the sky, followed by a short Air France/KLM or LOT hop into Gdansk. Lufthansa loyalists should note that Frankfurt and Munich both offer strong short connection windows to LOT's Gdansk service, and Lufthansa's business class on the long-haul leg (pre-Allegris on older 747-8 and A340 frames still flying certain Seattle-adjacent routings, or Allegris on newer 787s) gives you lie-flat comfort before the final short sector. The insider move: book the LOT connecting flight as early in the day as possible, since Gdansk's compact single-terminal airport gets congested with charter traffic in summer, and morning arrivals clear customs noticeably faster.
Seasonality favors the patient traveler here — January, February, March, and again October through November consistently produce the softest business class fares on this corridor, as Baltic leisure demand collapses outside summer while corporate Warsaw-Gdansk traffic keeps LOT's regional feed reliable. Given how thin premium inventory can be on the LOT connecting flights, setting up automated fare alerts for this specific city pair is the smartest way to catch a business class release the moment it opens up.
