AppleCare+ with Theft and Loss Renewal in Spain

This is a user to user only forum, so you should get a definitive answer from Apple directly. Typically, AppleCare+ Plans are country specific. iPhones are sold by region so it might not be a good expense if you are moving to Spain, where the plan may not apply. But ask Apple directly for confirmation. Since you're in the US, you can call Apple at: 800-MY-APPLE.

Extend your coverage. On your iPhone, iPad, or Apple Vision Pro, go to Settings > General > AppleCare & Warranty, then tap your device.

Extend your AppleCare+ coverage

Please buy Apple Care Plus.

Please refer to ---> See AppleCare+ Terms and Conditions for complete product details.

Please read this para...(Extracted from the above link)

"Service will be limited to the options available in the country where you request service. Service options, parts availability, and response times may vary. If service is not available for the Covered Equipment in a country that is not the country of purchase, you may be responsible for shipping and handling charges to facilitate service in a country where service is available. If you seek service in a country that is not the country of purchase, you must comply with all applicable import and export laws and regulations and be responsible for all custom duties, V.A.T. or GST, and other associated sales taxes and charges. For international service,

Apple may repair or exchange products and parts with comparable products and parts that comply with local standards."

Renew your Apple Care+