American Airlines is offering up to 40,000 bonus miles for flights taken on American Airlines between the U.S., Canada, or Mexico and Europe between January 19 and March 31, 2017. This also applies to flights operated by British Airways, Iberia, and Finnair.
Travelers who register for the promotion and take eligible flights will receive 5,000 bonus miles for Economy Class, 10,000 bonus miles for Business Class, and 20,000 bonus miles for First Class travel. These amounts are round-trip, and participants can earn this bonus twice.
To be receive this promotion, visit this link and sign up.