Lufthansa has select roundtrip flights to Europe on sale for as low as $632. (Click on Lufthansa Airlines in the top line to see this sale.) That's a buck our mention from two weeks ago and the lowest price we could find for these routes by at least $26. This price is valid on flights departing from Newark, NJ, (EWR) to Milan, Italy, (MXP) on February 1 with return on February 9. Book this travel deal by February 5 for travel from January 30 through June 11. Click here to see more routes.