Start at Lodhi Garden around 7:00–8:00 am, when the paths are coolest and local walkers outnumber visitors. Allow about an hour to wander past Sikandar Lodi’s Tomb and Muhammad Shah’s Tomb; entry is free, and the gardens generally open from sunrise until evening. From here, take an auto-rickshaw or taxi along Lodhi Road toward India Gate—about 15–25 minutes depending on traffic. Spend roughly 45 minutes around the memorial and Kartavya Path; the central lawns are best appreciated in the morning, though access around the monument can occasionally be restricted for official events.
Continue by taxi to Khan Market, usually 10–20 minutes from India Gate. This is a good place for a relaxed final Delhi lunch rather than a rushed airport meal: try Perch Wine & Coffee Bar for coffee and light plates, or Big Chill Café for more substantial comfort food. Expect approximately ₹800–₹1,500 per person. Give yourself about 1½ hours here, including time to browse the small boutiques and bookshops; the market typically gets livelier toward lunchtime, and many shops open around 10:00–11:00 am.
From Khan Market, take a taxi to Humayun’s Tomb in Nizamuddin East, allowing 15–25 minutes. Set aside 1½ hours to walk through the Charbagh gardens and admire the tomb’s red sandstone and marble details; the complex is generally open from sunrise to sunset, with entry commonly around ₹35 for Indian visitors and ₹550 for foreign visitors, subject to current rates. Afterward, head directly to Indira Gandhi International Airport via Ring Road and the airport expressway. Leave central Delhi at least 3 hours before an international flight or 2 hours before a domestic flight—more if travelling on a Friday, during peak evening traffic, or with checked luggage. A pre-booked cab is easiest with bags; the Delhi Airport Metro Express is faster only if you are already near a convenient station, and airport check-in and security can take considerably longer than expected.