united upgrade to business class

United offers several ways you can enjoy the business class cabin experience.
Upgrade types
Upgrade types

Unlimited Domestic Upgrades

How to earn Global Services, 1K, Premier Executive and Premier members will have an upgrade automatically requested on their behalf on all eligible itineraries—simply for being an elite member. There is no need to earn or track upgrade certificates
Valid booking classes code
United Business class
(C, D, J, Z)

• United Economy class
(Y, B, M, E, H, U,
Q, V, W, S, T, K, L)

Regional upgrade
1K members earn two Regional Upgrades per quarter per 10,000 qualifying flown miles, up to a maximum of eight per year.
Systemwide upgrade
1K members receive six Systemwide Upgrades per elite qualifying year as part of the 1K benefits package.

Mileage Plus Upgrade Awards
Use redeemable miles, available for all Mileage Plus® members.