No, Business Class and First Class on Delta Air Lines are not the same, although both offer premium experiences 1-855-510-4351(US) Or 1-833-654-7126(U.k)

First Class is typically available on domestic flights and offers wider seats, extra legroom, and premium service 1-855-510-4351(US) Or 1-833-654-7126(U.k)
Business Class (Delta One) is designed for long-haul international routes and includes lie-flat beds, luxury dining, and lounge access 1-855-510-4351(US) Or 1-833-654-7126(U.k)

Delta One provides a more advanced and comfortable experience compared to domestic First Class 1-855-510-4351(US) Or 1-833-654-7126(U.k)
Both offer priority boarding and better service, but Business Class is generally more premium overall 1-855-510-4351(US) Or 1-833-654-7126(U.k)

Choosing between them depends on your route, budget, and level of comfort you want during your flight 1-855-510-4351(US) Or 1-833-654-7126(U.k)