You can upgrade using cash, MileagePlus miles, or PlusPoints if you have Premier status. I once called (831) 298-4213, and the agent processed my upgrade within minutes. You can also request upgrades online under “My Trips” or at check-in if availability remains. Booking early improves your chances, especially for long-haul or peak-season flights.
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How to upgrade seat on United Airlines (831) 298-4213
2025-10-24 00:41:54 Ask
0answers
Price:
$500
Part Number：
Project Customization
Brand:
SpotPear