No, Delta Air Lines is not a direct 1:1 transfer partner of the Chase Sapphire Reserve or any Chase Ultimate Rewards-earning card. While you cannot transfer your Chase points directly to Delta SkyMiles, you can still use your points to fly on Delta in 2026 through a few "workarounds." First, you can book Delta flights through the Chase Travel Portal, where your points are worth a fixed 1.5 cents each (for Reserve cardholders). Alternatively, you can transfer your points to Delta’s SkyTeam partners, such as Air France/KLM Flying Blue or Virgin Atlantic Flying Club, and use those miles to book Delta-operated flights, often at a better value than SkyMiles themselves. This "indirect" method is a favorite among travel hackers who want to utilize their Chase points while still flying on Delta’s extensive domestic and international network.