Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.The British Airways and AARP discount, which has proven to be incredibly lucrative for premium cabin travelers, is back at its original level, which means you can score up to $400 off a business or first-class ticket. However, you have to move fast — you must book by June 29, 2017, for outbound travel between August 1, 2017, and January 8, 2018.Here’s how the AARP savings break down for the extended booking period when using this page on the BA site:World Traveller (economy) — $65 offWorld Traveller Plus (premium economy) — $130 offClub World (business class) — $400 offFirst — $400 offThe AARP savings can save travelers a good chunk of money on their travels with BA. As a reminder, the amount you’ll save varies depending on class of service, and the discount is only applicable to round-trip tickets purchased in cash. British Airways and its codeshares operated by American and Iberia also count for this promotion. The discount can’t apply to already-made bookings, and you must be an AARP member in order to take advantage.While you don’t have much time to take advantage (bookings must be made between now and June 29), it’s great to see that BA and AARP are bringing back this popular offer after reducing it to $200 earlier this year. If you’re an AARP member and looking to take advantage, be sure to book before it’s too late.H/T: One Mile at a Time