- It was a pleasant trip through the Alaska Airlines DEN Terminal. During check-in, the personnel were welcoming and responsive. The layout of the terminal made finding my gate easy. After arriving, I didn't have to walk far because the baggage claim was close by. The A Line train station's convenience for my journey into Denver was another thing I valued. The entire procedure went smoothly and effectively, confirming that the DEN Terminal is fully furnished to accommodate passengers in a timely and comfortable manner.