Multi-City → Mexico City Economy Sep 2026 (Flying Blue Award Sale)
Delta Nonstops to Mexico City from 28K Round-Trip — About 24K With Citi's Transfer Bonus
Atlanta (ATL) to Mexico City (MEX), Economy, Round Trip.
Delta's nonstop hop to Mexico City is going for 28,000 Flying Blue miles round-trip out of Atlanta, and Citi's 20% transfer bonus drops that to roughly 24,000 Citi points. The same Main Cabin seat is selling for about $778 cash on those dates, so after $210 in taxes you're getting about 2 cents per point. Five other Delta hubs are in on it — Detroit, Minneapolis, Los Angeles, New York, and Salt Lake City — all nonstop, from 29K. Availability is best September through November and again February through May, including Mexican Independence Day weekend in mid-September.
Open a free Flying Blue account at airfrance.us before you do anything else. You cannot search award space without one, and brand-new accounts sometimes sit in verification for a day.
Log in and choose "Book with Miles." Search from your nearest departure city to Mexico City (MEX) using the round-trip dates in the departure city table.
Select the Economy cabin and filter for nonstop. From Atlanta you're looking for 14,000 miles each way, or 28,000 round-trip. If you see a much higher number, the award space on that date is gone.
If Air France's site returns no Delta flights at all, retry the same search on KLM.nl or in the Air France app. Same award inventory, more reliable results. Phone booking is the last resort.
Only after you've confirmed the seats are live, transfer your points in. Citi is the one to use right now thanks to the 20% bonus. Transfers are one-way and cannot be reversed, so never move points on speculation.
Finish the booking and pay the roughly $210 in taxes and fees with a card. Before you hit confirm, check that the fare reads Main Cabin — that's what includes the carry-on and the advance seat assignment.