Yes, the Airbus A321neo, specifically the LR (Long Range) and XLR (Extra Long Range) variants, is fully capable of flying transatlantic routes and has revolutionized the 2026 airline market by doing so. The A321LR can fly up to 4,000 nautical miles, making it ideal for "thin" routes like New York to London or Dublin to Washington D.C. The newer A321XLR, which entered widespread service in late 2024 and 2025, extends this range to a massive 4,700 nautical miles. These single-aisle aircraft are prized by airlines like JetBlue, Aer Lingus, and United for their fuel efficiency and ability to serve secondary cities that don't have enough demand for massive wide-body planes like the A350. For passengers, these narrow-body planes often feature "premium" configurations with lie-flat seats in Business Class to match the comfort of larger jets on these 7-to-9-hour journeys across the Atlantic.