To communicate with United Airlines in Spanish, you have several options:

1.Phone Support:
  - United Airlines offers customer support in Spanish. You can call their Spanish-language customer service line United Airlines Español Telefono at +1(844)733-1212 or 55- 5283-5500.

2. Website:
  - Visit United Airlines' official website. Many pages are available in Spanish. You can switch the language to Spanish by scrolling to the bottom of the homepage and selecting "Español" from the language options.

3. Live Chat:
  - United Airlines provides a live chat option on their website and mobile app. Look for the chat icon and select Spanish to communicate with a representative.

4. Social Media:
  - United Airlines is active on social media platforms like Facebook and Twitter. You can send them a message in Spanish through these platforms.

5. Email:
  - You can send an email to United Airlines customer service in Spanish. Be sure to specify that you would like a response in Spanish.

6. Mobile App:
  - The United Airlines mobile app also offers support in multiple languages, including Spanish. Make sure your app settings are set to Spanish.

7. Airport Service Desks:
  - At many airports, United Airlines has staff who speak Spanish. You can approach the service desk for assistance in Spanish.

8. Frequent Flyer Program:
  - If you are a member of their MileagePlus program, you may have access to dedicated customer service lines that include Spanish-speaking representatives. Check the contact options provided to members.

These options ensure that you can get the assistance you need in Spanish from United Airlines.