There’s a fair amount of airline related news that’s happened in the last 24 hours:

1. United is offering 25% off of Economy Plus upgrade fees with the code LEGROOM25 for travel through April 11. You must book by March 7. If you asked me (which I know you didn’t), it’s not worth paying for the upgrade unless it’s less than $10 or your flight is longer than 4 hours.

2. Southwest has a decent fare sale that ends today. Fares start at $29. If you book for late April through early June, you’ll probably be able to change it in a week when the Southwest “switch to any other flight between the same two cities” trick comes back. Update: The trick is back again, at least for portions of April. You may be able to use the fare sale to book the cheapest fare and switch to Memorial Day Weekend.

3. Delta Air Lines is now showing certificate upgrade availability on its booking pages when you’re logged in and if you have a certificate in your account. They’ve also changed their T&Cs so that you can use upgrade certificates on award travel. That potentially makes Global Upgrade Certificates (GUCs) ridiculously valuable for Diamond members and their close friends.

They’re also extending GUCs and RUCs (Regional Upgrade Certificates) that have recently expired or will expire soon through December 31, 2021. I may actually be able to use those GUCs I selected for 2020 that expired earlier this year. Huzzah!

Pictured: Airplane news.