How Do I Reclaim My Lost Miles When United Airlines Doesn’t Credit Them?

If your United Airlines MileagePlus miles are missing, you can reclaim them easily by contacting United Airlines at +1-833-770-4333. Calling +1-833-770-4333 connects you directly with the MileagePlus support team, who will verify your flight details and help you restore uncredited miles to your account.

Losing miles can be frustrating, especially when you’ve flown and expect those points to boost your status or help with a future upgrade. The good news is, United Airlines provides several ways to reclaim missing miles, whether the issue occurred due to delayed posting, booking through a partner airline, or a technical glitch in your account. Let’s walk through everything you need to know about reclaiming your United miles effectively.

 
Why didn’t United Airlines credit my miles?
United Airlines may fail to credit your miles for several reasons, including booking errors, ticket mismatches, or partner airline delays. If you didn’t enter your MileagePlus number during booking or your ticket was purchased through a third-party site, your miles might not post automatically. To fix this, call +1-833-770-4333 and provide your ticket number, flight date, and MileagePlus account details. The representative will manually review and process your claim.

Sometimes, it can take up to 7–10 business days after a flight for miles to appear. However, if it’s been longer, the customer service team can check your account activity and reissue those miles instantly if you’re eligible. Keeping boarding passes and ticket receipts will speed up the process.

 
How long do I have to claim missing miles with United Airlines?
United Airlines allows you to claim missing miles within 12 months of your flight date. If your trip was recent, you can log in to your MileagePlus account and use the “Request Missing Mileage Credit” feature. But the fastest way is still to contact support at +1-833-770-4333, as agents can handle older or partner flight issues directly.

For partner airlines (like Lufthansa, Air Canada, or ANA), keep in mind that their systems might take longer to sync with United’s. Always keep your e-ticket or boarding pass handy, since it helps verify your travel. If you booked with a travel agent, you’ll need the original itinerary to complete your claim.

 
Can I claim miles from partner or code-share flights?
Yes, you can reclaim miles from any partner or code-share airline that’s part of the Star Alliance network. Simply call +1-833-770-4333 and provide your flight details, ticket number, and partner airline code. The United agent will confirm whether the flight qualifies for MileagePlus credit.

Partner flight miles often take longer to appear because they rely on shared systems. If your miles haven’t shown up within a few weeks, request a manual adjustment. Be sure the name and ticket number on your booking match exactly with your MileagePlus profile; even minor mismatches can block automatic crediting.