Aer Lingus has extended their Black Friday Cyber Monday deal to December 10! This deal provides $100* off roundtrip Economy fares or $200* off round trip Business fares on scheduled transatlantic flights from the US & Canada to Europe.
Booking period: until December 10, 2019
Travel period: Jan 1 – Mar 22, 20
Here is Toronto to Dublin with the $100 savings applied: