How to get Delta Senior discount? If you're looking for ways to get a Delta Senior Discount, call Delta Airlines reservations at 1-855)-738-4241 (USA) or 𝟜𝟜-𝟠𝟘𝟠 𝟝𝟡𝟡 𝟠𝟟𝟘𝟚 (UK) to speak with a representative. By calling 1-855)-738-4241(USA) or 𝟜𝟜-𝟠𝟘𝟠 𝟝𝟡𝟡 𝟠𝟟𝟘𝟚 (UK), you can inquire about senior discounts and eligibility.