United: Fly Internationally for Free Upgrade

United: Fly Internationally for Free Upgrade

For every qualifying international roundtrip in select United Economy (Y, B, M, H booking classes) purchased and flown before April 15, Mileage Plus members will earn one system-wide upgrade. There is no limit to the number of upgrades that can be earned.

Alas, the upgrade is valid for one-way travel, and qualifying travel cannot include a Saturday-night stay.

Registration is required for this offer. Use promotion code MPW044 when registering.

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