This certificate entitles you to two complimentary (except 3rd party taxes and fees)roundtrip/one-way Delta One tickets between the US/Canada and Europe.  If G or Z class is not offered or available, Delta Comfort (W Class) or Main Cabin (Q Class) can be used.

Travel certificates must be redeemed by December 23, 2017

There are no blackout dates.  Stopovers, open segments and wait listing are not permitted.  Single legal open-jaw itineraries are permitted. Travel must be completed within 331 days of booking date. Once ticketed, tickets are nonrefundable. Changes are permitted for a fee. No upgrades are permitted. Skymiles mileage credit will NOT be awarded with this certificate. Travel must be ticketed prior to the certificate expiration date.