Nationwide → MAD Economy Sep 2026 (Iberia Avios Sale)
Nationwide Iberia Avios Sale to Madrid from 26K Round-Trip
Boston (BOS) to Madrid (MAD), Economy, Round Trip.
Iberia has 15–20% off award flights to Madrid until Sep. 23, for travel through Mar. 18, 2027. Round-trip Economy starts at 26,000 Avios from Boston, New York, and Washington, D.C. All 9 cities have nonstop flights. With the 30% Amex transfer bonus, 26,000 Avios costs only 20,000 Amex points.
Log in to a free Iberia Plus account and search on iberia.com, one direction at a time.
Select "Monthly view of flights" to see the award calendar.
Find dates that cost 12,800 to 17,000 Avios each way in Economy.
Transfer Amex points to Iberia with the 30% bonus, then book the seats.
For Chicago, type the city name "Chicago." The airport code does not work.
Book on iberia.com only. Other sites do not show the sale price.
Select Basic for the lowest price, or select Comfort for a checked bag.