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How to Contact United MileagePlus Customer Service

Trying to get a hold of United MileagePlus can feel like you're stuck in the middle seat on a cross-country flight. It's a hassle. Whether you're dealing with mileage redemption issues or just can't get into your account, you're not alone. Many people on sites like the Better Business Bureau complain about the same things. Especially with everyone trying to cash in points for that summer vacation they saw on TikTok, getting help can be tough. You can try calling them, using their website's contact form, or even sending a message on social media like X (formerly Twitter). For official information, your best bet is always to start at the official United MileagePlus site.

Last Edited on 08 Dec, 2025
Olivia Harper, Senior Content Manager
10 min read

Different Ways to Contact United MileagePlus

Here's a quick rundown of the main ways to get in touch with United MileagePlus. Choose the one that best fits how urgent your problem is.

Contact Method Details & Availability Best for...
Phone 1-800-421-4655, available 7:00 a.m. - 12:00 a.m. (CT) Urgent issues, booking award travel, complex problems
Online Contact Form Available 24/7 on the United website Non-urgent questions, submitting feedback, documenting an issue
Social Media @united on X (formerly Twitter) Public complaints, getting a faster response when other channels fail
Mail MileagePlus Service Center, P.O. Box 28870, Tucson, AZ 85726-8870 Formal correspondence, sending required documents

Customer Support Channels

πŸ“ž Phone Support

Calling is often the most direct way to solve a problem, but be prepared for potential wait times.

Department Phone Number Hours (Timezone)
MileagePlus Service Center 1-800-421-4655 7:00 a.m. – 12:00 a.m. (CT)
Premier Priority Desk Number on back of membership card 24/7 for most elite tiers

πŸ“§ Email Support

United doesn't offer a direct customer service email address. Instead, they direct all written inquiries through their online forms to create a trackable case file.

Purpose Email Notes
General Inquiries & Feedback Online Contact Form Response times can vary. Best for issues that aren't time-sensitive.
Request Missing Miles Online Miles Request Form The fastest way to claim miles that didn't post automatically.

πŸ’¬ Live Chat or Website Bot

United uses an automated chat assistant on its website and mobile app.

  • Where to access: Look for the chat icon on the United.com homepage or within the mobile app.
  • Steps to access: Click the icon and start typing your question.
  • Types of problems it handles: It's best for simple questions like flight status or baggage allowance. It struggles with complex account issues.
  • Escalation: You can get to a human agent by repeatedly typing "agent" or "representative," but it can take a few tries.

πŸ“± In-App Support

Support is available directly through the United Airlines app for iOS and Android.

  • Platform: iOS and Android.
  • Steps to contact: Navigate to the main menu, find the "Contact Us" section. This will provide links to call support directly from the app or launch the chat feature.

⏱️ Estimated Response Times from United MileagePlus

Patience is key. Here’s what you can generally expect.

Method Expected Wait Time
Phone 5 minutes – 1+ hour (highly variable)
Email / Contact Form 24 hours – 7 business days
Chat Instant (bot), 5 – 30 minutes (human agent)
App Same as Chat or Phone

πŸ” Tips to Reach Support Faster from United MileagePlus

  • Call during off-peak hours: Try calling mid-week in the early morning or late at night to avoid long waits.
  • Use your Premier status: If you have elite status, always use the dedicated Premier phone number on your card.
  • Use the callback feature: If the automated system offers to call you back, take it. It saves you from sitting on hold.
  • Try social media: A public post on X (Twitter) can sometimes get a quicker response from their social media team.

Before You Call: What to Have Ready

Don't get stuck on hold just to realize you don't have what you need. Before you even dial, grab your MileagePlus number and the email you signed up with. Trust me, it's the first thing they'll ask for. If it's about a specific flight, have your flight confirmation number or ticket number ready too. It makes everything go smoother.

Where to Quickly Solve Problems with United MileagePlus

Different problems have different solutions. Here's a cheat sheet to get your issue resolved faster.

If Your Problem Is... The Best Contact Method Is... Pro Tip
Missing miles from a flight Online "Request Missing Miles" Form This is way faster than calling. You'll need your ticket number, and it can take a few days to post.
Booking a complex award flight Phone Support (1-800-421-4655) Phone agents can see partner airline availability that sometimes doesn't show up online. Be prepared for a wait.
Account is locked or password issues Website Self-Service Tools Only call if the online password reset tool fails multiple times. The website is your fastest option for this.
Filing a formal complaint Online Contact Form Be specific with flight numbers, dates, and names. This creates a written record you can reference later.

Frequently Asked Questions about United MileagePlus Customer Service

What are United MileagePlus customer service hours?
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Is there a United MileagePlus live chat option?
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What's the fastest way to reach United MileagePlus support?
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Do I need my account number to contact United MileagePlus?
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Can I email United MileagePlus customer service?
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Is there a United MileagePlus mobile app for support?
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What information should I have ready when calling?
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How do I complain to get compensation or miles?
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Olivia Harper

Olivia Harper

Senior Content Manager

Olivia Harper leads the Content at Pine AI, where she leads the creation of practical, user-first guides on navigating and cancelling subscription services. With more than a decade of experience in consumer advocacy and digital content strategy, Olivia specialises in simplifying complex service terms so readers can make informed financial decisions. Her work has been featured in Digital Consumer Reports and other leading consumer platforms, has helped thousands of users save money, avoid hidden fees, and regain control over recurring charges.

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