FlyerTalk Forums - View Single Post - Help me understand the GU and RU certificates
Old Aug 20, 2019 | 5:01 pm
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Zorak
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Originally Posted by lsquare
If it doesn't clear for the 12 hour flight, but it's available for the 1 hour flight, then what?
You choose whether you're willing to blow the certificate just for the 1-hour flight, or you don't use the cert on that itinerary.

There's a ton of good info and tips accumulated over the years in the respective GUC and RUC threads:

The Official - GLOBAL UPGRADE CERT success thread - Yay! I got it!

https://www.flyertalk.com/forum/delt...-upgrades.html

that plus the DL site about certificates would be research time well spent

https://www.delta.com/content/www/en...l/#certificate
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