Yes, the NFL covers all travel expenses for its referees, which is an essential aspect of their job. Each week, referees are assigned to different cities across the country to officiate games, and the league ensures that they are not burdened with the costs associated with travel and accommodations. Typically, referees will fly out to their assigned city on either Friday or Saturday, allowing them time to meet with their officiating crew to review game plans and discuss strategies. After the game concludes, they usually return home on Monday. This arrangement allows referees to focus on their officiating duties without the added stress of travel logistics, ensuring that they are well-prepared and rested for each game.