Can you upgrade seats on American after purchase?

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Source: Can you upgrade seats on American after purchase?

You can request your upgrade at the time of booking or +𝟙-𝟠𝟘𝟘-𝟡𝟠𝟛-𝟠𝟠𝟚𝟙 anytime before check-in by calling American Airlines Reservations, but there's no guarantee +𝟙-𝟠𝟘𝟘-𝟡𝟠𝟛-𝟠𝟠𝟚𝟙 you'll get the upgrade. If the airline can't confirm you're getting the upgrade at the time you req

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