There are some excellent fare sales today from San Francisco to various destinations in Europe from around $412 round trip. While we have seen some great fares on budget carries like Norwegian and WOW over the past several months, today’s fares are offered on a variety of alliance carriers from SkyTeam, Star Alliance, and One World. This means that you can earn miles in a vast array of programs and also receive added perks like free checked bags that enhance these fare beyond face value in comparison.
Some example fares:
San Francisco to Athens from $412 on British Airways (during Tulip season!)
See the above-linked posts for more detail.
HT: Loyalty Traveler